JVC Model 200 manual

SERVICE MANUAL Model 200 Projector[...]

DECLARATION OF CONFORMITY PER ISO/IEC GUIDE 22 AND EN 45014 Manufacturer : Hughes JVC 2310 Camino Vida Roble Carlsbad, Ca 92009 USA Hughes-JVC declares that this product conforms to the following Product Specifications (Directive/Standard): Safety: EN 60950 IEC 950 (1992) EMC: EN 55022 (1988) / CISPR-22 (1986) Class "A" EN 50082-1 (1992) [...]

Table of Contents Safety Information .................................................................................. v Chapter 1 Introduction 1.1 Acronyms Used in Manual......................................................................... 1-1 1.2 Safety .........................................................................................[...]

Chapter 5 Troubleshooting PCB Status LEDs .............................................................................................. 5-1 Error Codes ................................................................................................... 5-4 Troubleshooting Guide .......................................................................[...]

Safety Information Safety Information Introduction Read entire Safety Chapter thoroughly before performing any maintenance or service on the projector. Only qualified service personnel should perform procedures and adjustments. Safety Equipment: Use safety equipment specified in the projector’s Maintenance training and certification program or eq[...]

Safety Information Installation Safeguards WARNING!!! Procedures in this service manual require removing the projector’s covers to access internal component to remove, replace, service and adjust the projector. Only Hughes- JVC Certified Technicians are qualified to perform these procedures. Before removing or replacing any internal components or[...]

Safety Information CAUTION! Do not unplug the power cord until after the arc lamp fan has stopped running. This fan protects the arc lamp from overheating. Disconnecting power before the cooling fans have stopped running can shorten Arc Lamp life. Light Safeguards Ultra Violet and Infrared Light Eye and face protection from ultra violet light and i[...]

Safety Information Electrical Safeguards WARNING!!! High Voltage points up to 40,000 volts are exposed inside the covers. Allow at least one minute for the high voltage to bleed off, even after power is turned off. High voltage access. Front and rear covers contain safety interlocks. Defeat restricted to Hughes-JVC certified service personnel ! Due[...]

Safety Information Ventilation and Foreign Object Retrieval CAUTION! Ensure projector’s multiple fans are free from obstructions and operating properly. Air filters are located at vent ports on the cover. Air filters require periodic cleaning to ensure adequate cooling of the projector ( Section 4.3 ). Ensure that all vent ports are clear of obst[...]

Safety Information Model 200 Service Manual x[...]

Chapter 1---Introduction 1.0 Introduction This Service Manual is designed to be used with the Model 200 User’s Guide. This service manual provides information on the: — Projector functional description; — Service adjustments, removal and replacement of subassemblies; and — Troubleshooting. The user’s guide covers the projector’s install[...]

Chapter 1---Introduction Balldriver, 8mm Ballpoint L-Wrench Set, 1.5-5mm Delrin .100 Hex Alignment Tool Gloves, ANSI/ASTM 10,000 volt rated, Safety Goggles, Safety, x3(covers on) and x5(covers off) Hex Ballpoint Driver, 3mm Hex Ballpoint Driver, 5mm Nutdriver, 10mm Nutdriver, 11mm (or 7/16”) Nutdriver, 5mm Nutdriver, 7mm Nutdriver, 8mm Screwdrive[...]

Chapter 1---Introduction PLUGE Picture Line-Up Generating Equipment RAM Random Access Memory RGB Red, Green and Blue RGBHV Red, Green, Blue, Horizontal, Vertical ROM Read Only Memory RTG Raster Timing Generator SCB System Controller Board SECAM Sequential couleur a memoire (sequencial color with memory SRB Scan Reversal Board SYNC Synchronization T[...]

Chapter 1---Introduction 1-4 Model 200 Service Manual[...]

Chapter 2---System Description 2.0 System Description Contents 2.1 Introduction .............................................................................. 2-1 2.2 Optical System ......................................................................... 2-2 2.2.1 Image Path ................................................................... 2-2 2[...]

Chapter 2---System Description • The Power Supply Section is located at the right front area of the projector below and to the rear of the Arc Lamp. It contains the Low Voltage Power Supply, the High Voltage Power Supply, and the Arc Lamp Power Supply. • The Projector Electronics Section is located mainly in the back half of the projector. It c[...]

Chapter 2---System Description primary light source. The light output to the screen is the function of the Arc Lamp. The purpose of the CRTs is to generate an image and to control the amount of modulation the ILA ® assemblies introduce on the light coming from the Arc Lamp. The Red, Green, and Blue image signals are routed to the CRTs from the Vid[...]

Chapter 2---System Description Combining (4P) Prism: The combining prism consists of separate prisms that polarize each of the three high intensity signals and direct them toward the projection lens. Projection Lens: The Projection Lens picks up the high intensity image from the Combining Prism and transmits it to the projector screen. 2.2.2 Arc La[...]

Chapter 2---System Description light into its Red, Green and Blue components. The first mirror in the Dichroic Mirror Assembly reflects blue light to the blue ILA ® assembly, the second mirror reflects green light to the green ILA ® assembly, and the third reflects red light to the red ILA ® assembly. Thus, each ILA ® is sent only one color of [...]

Chapter 2---System Description Figure 2-1. Optical System Block Diagram 2-6 Model 200 Service Manual[...]

Chapter 2---System Description 2.3 Electronics System 2.3.1 General Description The Model 200 Electronics System includes nine printed circuit assemblies. They provide all the controlling voltages and signals to adjust and correct picture settings, geometry, convergence, and shading ( see Chapter 4 of the User’s Guide ). The Electronics System al[...]

Chapter 2---System Description 2.3.2 Power Supplies The Model 200 includes three power supply assemblies. • Low Voltage Power Supply • Arc Lamp Power Supply • High Voltage Power Supply Low Voltage Power Supply (LVPS) P75 P76 1 3 5 1-7 8 9 10 11 12 13 14 15 16 17 18 To P8 o n Backplane AC INPUT Li ne Eart h Neutral LV Ret /LV_E NA /LV_O K +24v[...]

Chapter 2---System Description + 24VDC + 80VDC /LV_OK: When /LV-ENA is enabled, this diagnostic signal indicates to the System Controller the status of the non-standby supply (all outputs working or not working). Operation: The main power is filtered via the input filter to prevent radiation from escaping back to the power line. From the line filte[...]

Chapter 2---System Description /COVER_ON: Cover interlock signal. Indicates both covers are in place. /LAMP_OK: Tells the ALPS that the lamp is installed, the temperature is within limits, and the lamp cooling blower is working. Outputs: +140 VDC boost voltage to the Laser Power Supply. Voltage: 18 to 25 VDC to maintain the arc lamp ON. Current: 30[...]

Chapter 2---System Description • Generation of focus voltage (G3) for all three CRTs (RGB) • Generation of screen (G2 supply-Black Level) voltage for all three CRTs • Generation of G1 supply (Blanking) voltage • Dynamic focus amplifier using H and V parabolas • External ON/OFF and generation of /HV_OK signal The High Voltage Power Supply [...]

Chapter 2---System Description HVPS_SYNC Square wave HCT level with 50 or 33% duty cycle synchronized to horizontal sync. V ideo Processor PCB INPUT DESCRIPTION /HV_ENA The HVPS enable line. A low enable the HVPS (VA_OK from VPB). V ideo Amplifier PCB OUTPUTS DESCRIPTION G1_SUPPLY DC supply about -150 V for driving the G1 of CRTs G2_SUPPLY DC suppl[...]

Chapter 2---System Description CRTs OUTPUTS DESCRIPTION RED_ANODE GRN_ANODE BLU_ANODE Anode supply for the three CRTs. About 25 KV RED_FOCUS GRN_FOCUS BLU_FOCUS Focus voltage for the three CRTs. About 7 KV Interlocks and protection: This section describes the interactions between boards where one board may cause others to perform protection functio[...]

Chapter 2---System Description 2.3.3 Video Input Cards The four types of Video Input Cards that can be used with the Model 200 Projector are: • Standard RGB Video Input Card, which is supplied with each projector and is used for RGB standard formats • Optional Four Input RGB VIC used in a similar manner as a switcher. • Optional HDTV VIC used[...]

Chapter 2---System Description LED indication The RGB VIC includes an LED which glows when the board is selected (i.e. when the /SEL_CH line is low) as the input for the Model 200 Projector. IIC serial bus interface section The RGB_VIC is controlled by the serial bus interface. The IIC bus comes from the System Controller Board through the Backplan[...]

Chapter 2---System Description /SEL_VIC Select line for VIC. A low indicates the RGB_VIC is selected. RED_VIC GRN_VIC BLU_VIC Video signals. about 0.7 to 1 VPP H_VIC Horizontal or composite sync signals V_VIC Vertical sync signals System Controller Board INPUTS DESCRIPTION IIC_CLK IIC clock line. Unidirectional clock line for control of synchronous[...]

Chapter 2---System Description RED_VIC GREEN_VIC BLUE_VIC H_VIC V_VIC IIC /SEL_VI C IIC_CLK IIC_DATA IIC_INT +5.1V stby +5.1V +15V -15V 4:1 VIDEO MUX and BUFFER S RED_CH1 RED_CH2 RED_CH3 RED_CH4 GRN_CH1 GRN_CH2 GRN_CH3 GRN_CH4 BLU_CH1 BLU_ CH2 BLU_CH3 BLU_ CH4 HOR_CH1 HOR_CH2 HOR_CH3 HOR_CH4 VER_CH1 VER_ CH2 VER_CH3 VER_ CH4 Figure 2-7. Quad Input [...]

Chapter 2---System Description • LED indication • IIC serial bus interface RED GRN BLU HOR /SELE CT Y/G Pb/B Pr/R IIC_ C L K IIC_DATA +5.1V _STBY +5.1V +15V -15V B2 B4 B6 B8 B12 B13 A13 A16 B16 B15 B14 Pin callouts ar e to P12 , P14, or P18, depending o n which VIC slot is be in g used . Figure 2-8. HDTV YPbPr VIC Input/Output Diagram. This VIC[...]

Chapter 2---System Description Table 2-4. HDTV VIC IIC Interface I/O Bits Information Description I 1 /SEL_YPbPr Selects YPbPr input mode for the YPbPr_VIC. Low = Selected YPbPr input mode. I 1 /SEL_RGB Selects RGB input mode for the YPbPr_VIC. Low = Selected RGB input mode. I 8 GAMMA Data for adjustment of Gamma correction I 8 COLOR Data for adjus[...]

Chapter 2---System Description HOR Composite horizontal / vertical sync signal System controller board INPUTS DESCRIPTION IIC_CLK IIC clock line. Unidirectional clock line for control of synchronous data transfer over the IIC bus interface. IIC_DATA IIC data line. Bidirectional serial line for synchronous data transfer between system control board [...]

Chapter 2---System Description • Tint, sharpness, and color adjustment • LED indication of Composite or S-video • IIC serial bus interface R G B /H /SELE CT Comp Y in C in IIC_CLK IIC_ D A TA +5.1V +15V B2 B4 B6 B8 B12 B13 A13 B16 B15 Pin cal louts are to P12, P14, or P18, depending on whi ch VIC sl ot is bein g used. /V B10 Figure 2-9. Quad [...]

Chapter 2---System Description I TINT Data for adjustment of Hue I COLOR Data for adjustment of color I SHARP Data for adjustment of Sharpness I VTR Selection of VTR mode O VNR Selection of Video Noise Reduction mode Quad Standard Decoder VIC I/O This section provides a description of the inputs to and outputs from the Quad Standard Decoder VIC. Th[...]

Chapter 2---System Description Low Voltage Pow er Supply INPUTS DESCRIPTION +5.1 V +5.1 V supply for use by The Quad Decoder VIC. +15 V + 15 V supply for use by the Quad Decoder VIC. Interlocks and protection None Model 200 Service Manual 2-23[...]

Chapter 2---System Description 2.3.4 Video Processor PCB The Video Processor Board (VPB) is the bottom-most card (see Figure 5-1) in the card cage. It is connected directly to the Backplane board through 2 connectors. When an external signal is being received, the VPB provides Horizontal Sync, Vertical Sync, and Green Sync signals to the Raster Tim[...]

Chapter 2---System Description B31 RED_V IC#1 B29 RED_V IC#2 B27 RED_V IC#3 B23 GRN_ VIC#2 B21 GRN_ VIC#3 B19 BLU_VIC #1 B25 GRN_ VIC#1 B24 RED_ THRESH B23 GRN_ THRESH B22 BL U_THRESH B25 BL U_SENS B17 BLU_VIC #2 B15 BLU_VIC #3 B13 H_VIC#1 B9 H_VIC#3 B7 V_VIC#1 B5 V_VIC#2 B11 H_VIC#2 B3 V_VIC#3 GRN_G2 A20 BLU_G2 A21 G1_B IAS A1 1 RED_G2 A19 B20 GRN[...]

Chapter 2---System Description I RED_G2 Red G2 Control I GRN_G2 Green G2 Control I BLU_G2 Blue G2 Control I WHT_BOOST Gamma correction I BLK_BOOST Gamma correction I G1_BIAS G1 bias level O /VA_OK Issues to SCB that Video Amplifier is OK O BEAM_CURRENT Beam current control O OK_DETECT Issues to SCB that VPB is OK Video Processor I/O This section pr[...]

Chapter 2---System Description GRN_THRES Similar to RED_THRES BLU_THRES Similar to RED_THRES I/O DESCRIPTION IIC_DATA IIC data line. Bidirectional serial line for synchronous data transfer between SCB and other circuit boards. See detailed description for list of signals transferred and data direction IIC_CLK IIC clock line. Unidirectional clock li[...]

Chapter 2---System Description OUTPUT DESCRIPTION RED_VIDEO Red video output. 0 Volt to 1 Volt. GRN_VIDEO Similar to RED_VIDEO BLU_VIDEO Similar to RED_VIDEO RESTORE DC RESTORE control signal. When this signal is asserted, the DC level of the video signal is clamped at the proper value on the VAB. RED_G2 Red CRT G2 voltage adjust control signal. GR[...]

Chapter 2---System Description /SEL_VIC #1 Input signal from RGB VIC board which is used to select input video source from VIC #1. /SEL_VIC #2 Similar to /SEL_VIC #1 /SEL_VIC #3 Similar to /SEL_VIC #1 Low Voltage Pow er Supply INPUTS DESCRIPTION + 5.1 volts Power supply to digital components + 15 Volts Power supply to analog components - 15 Volts P[...]

Chapter 2---System Description 2.3.5 Video Amplifier The Video Amplifier Board (VAB) is located at the back side of the projector under the necks of the three CRTs. It contains three separate video amplifiers, one each for red, green, and blue. The outputs from these video amplifiers connect directly to the CRTs and provide all electrical connectio[...]

Chapter 2---System Description RED_VIDEO GRN_VIDEO BLU_VIDE O BLANKIN G G1 SUPPLY G1 BIAS RESTOR E ARC_GND BLU_CATHODE 8 BLU_GRI D1 9 BLU_GRI D 2 10 BLU_BEAM 1 6 BLU_HEAT- 7 BLU_HEAT+ 6 ARC_GND 3 GRN _CA THODE 8 GRN _GRID1 9 GRN _G RID2 1 0 GRN_BEAM 14 GRN _HEAT - 7 GRN _HEAT + 6 ARC_GND 3 RED _ CATHODE 8 RED _GRID1 9 RED _GRID2 10 RED_ BEAM 12 RED[...]

Chapter 2---System Description Table 2-8. Video Amplifier I/O signals Video Processor Board INPUTS DESCRIPTION RED_VIDEO GRN_VIDEO BLU_VIDEO Video preamp signals. About 0.5 VPP G1_BIAS Brightness control line. 0 to 5 V DC RED_G2 GRN_G2 BLU_G2 Black level (G2) control lines 0 to 3.1 V RESTORE Video DC restoration pulse. logic HC positive going 4% du[...]

Chapter 2---System Description Raster Timing Generator Board INPUTS DESCRIPTION BLANKING Blanking signal. logic F type CRTs OUTPUTS DESCRIPTION RED_FOCUS GRN_FOCUS BLU_FOCUS Focus supply of CRTs. about 7 KV. RED_GRID1G RN_GRID1BL U_GRID1 Grid 1 (G1) signal of CRTs. RED_HEAT+ GRN_HEAT+ BLU_HEAT+ Positive side of the heater voltage for CRTs. About 6.[...]

Chapter 2---System Description 2.3.6 System Controller PCB The System Controller Board (SCB) is located in the electronic card cage (Figure 5-1). The Electronics System is controlled by the SCB. The SCB uses digital and analog circuits to direct the operation of image and raster generation circuits and to control the input/output of power supply op[...]

Chapter 2---System Description P11 B23 B24 B28 B29 B32 B27 B26 B31 B30 Lens Zoom Lens Focus /LV_ENA /FAN_ ENA /LAM P_ENA /HV_OK /LV_OK /LAMP_LIT /LAMP_OK P10 B31 B30 A32 A31 A30 A B 20- 20 21- 21 22- 22 23- 23 24- 24 25- 25 26- 26 27- 27 28- 28 29- 29 +5. 1V st by +5. 1V +15V -15 V GND ODD_FI ELD SRC_VALID H_DRIVE_S C V_DRIVE B9 B10 B2 B1 B3 RED_OV[...]

Chapter 2---System Description IIC_DATA IIC data line. Serial line for synchronous data transfer of the following data between Video Processor Board and SCB board. I=Input, O=Output. I BEAM CURRENT I OK DETECT O RED_CONT O GRN_CONT O BLU_CONT O BRIGHTNESS O RED_G2 O BLU_G2 O GRN_G2 O WHT_BOOST O BLK_BOOST OUTPUTS DESCRIPTION OVERLAY Overlay control[...]

Chapter 2---System Description H_DRIVE Square wave 50% duty cycle synchronized to selected horiz sync V_DRIVE Square wave negative going pulse synchronized to selected vertical sync with pulse width of about 4 horiz lines H_F2V DC voltage proportional to horiz frequency OUTPUTS DESCRIPTION ISYNC_CLK 5 mHz clock used to generate the internal sync si[...]

Chapter 2---System Description IIC_DATA IIC data line. Bidirectional serial line for synchronous data transfer between the SCB and the Horizontal/Vertical Deflection board. I=Input, O=Output. O V_RED_LIN_CONTROL O V_GRN_LIN_CONTROL O V_BLU_LIN_CONTROL O V_RED_EDGE_CONTROL O V_GRN_EDGE_CONTROL O V_BLU_EDGE_CONTROL O L/R_KEY_CONTROL O L/R_PIN_CONTROL[...]

Chapter 2---System Description /LAMP_LIT Informs the SCB that the Arc Lamp is lit or not lit OUTPUTS DESCRIPTION /LAMP_ENA Enables ALPS power Projection Lens OUTPUTS DESCRIPTION LENS_FOCUS Signal to lens focus motor LENS_ZOOM Signal to lens zoom motor Front IR INPUTS DESCRIPTION /FRONT_IR Input from front infrared receiver /REAR_IR Input from rear [...]

Chapter 2---System Description 2.3.7 Raster Timing Generator PCB The Raster Timing Generator (RTG) is located in the electronic card cage (Figure 5-1). The RTG I/O diagram (Figure 2-13) and the list of inputs and outputs (Tables 2-10 and 2-11) provide information to allow the technician to perform module level troubleshooting. The following functio[...]

Chapter 2---System Description Horizontal/Vertical Deflection Board uses these lines for proper selection of retrace times. B3 V_S YNC B4 H_ SYNC B5 G_SYNC HVPS_SYNC A14 A5 G RN_INPUT A32 +5 .1V A31 +15V B30 -15V V_DRIVE B15 B19 IS YNC_CLK B27 IIC_C LK BLANKI NG B1 CLAMP B2 ODD_F IELD B23 SOURCE_VALI D B24 280_CLK B21 B28 IIC_D ATA J13 J13 FROM SCB[...]

Chapter 2---System Description I 9 Left blanking Data for adjustment of left blanking I 12 Top blanking Data for adjustment of top blanking I 12 Bottom blanking Data for adjustment of bottom blanking I 8 Horz. phase Data for adjustment of horizontal phase I 12 Vert. phase Data for adjustment of vertical phase O 3 Frequency bands The frequency band [...]

Chapter 2---System Description Video Processor Board INPUTS DESCRIPTION V_SYNC Input vertical sync H_SYNC Input horizontal or composite sync G_SYNC Sync on green signal which is stripped for the green video GRN_INPUT Buffered version of green video OUTPUTS DESCRIPTION Clamp A negative going video clamp signal with about 3 % duty cycle Blanking Blan[...]

Chapter 2---System Description Low Voltage Pow er Supply INPUTS DESCRIPTION +5V Power for digital portion of RTG board +15V Power for the phase locked loop and the supporting circuitry of RTG board -15V Power for the phase locked loop and the supporting circuitry of RTG board +5.1V_STBY Stand by + 5.1 V. Not used by RTG board. Interlock and protect[...]

Chapter 2---System Description 2.3.8 Horizontal/Vertical Deflection PCB The HVD board is located on the top side of the deflection cage in front of the electronic card cage. The Horizontal/Vertical Deflection Board I/O diagram (Figure 2-14) and the list of inputs and outputs (Tables 2-10 and 2-11) provide information for the technician to perform m[...]

Chapter 2---System Description Figure 2-14. Horizontal/Vertical Deflection PCB I/O Diagram. Table 2-10. Horizontal/Vertical Deflec tion IIC Data Interface Input / Output No. of bits Information Description I 8 V_RED_LIN_CONTROL Data for adjustment of red vertical linearity I 8 V_GRN_LIN_CONTROL Data for adjustment of green vertical linearity I 8 V_[...]

Chapter 2---System Description I 8 V_RED_EDGE_CONTROL Data for adjustment of red vertical edge linearity I 8 V_GRN_EDGE_CONTROL Data for adjustment of green vertical edge linearity I 8 V_BLU_EDGE_CONTROL Data for adjustment of blue vertical edge linearity I 8 L/R_KEY_CONTROL Data for adjustment of left / right keystone correction I 8 L/R_PIN_CONTRO[...]

Chapter 2---System Description Horizontal/Vertical Deflection Board I/O This section provides a description of the inputs to and outputs from the HVD Board. The I/O descriptions are arranged by the source/destination of the signal. The assembly communicated with is used as the primary heading of each group of signals. Those signals are subdivided i[...]

Chapter 2---System Description H_LOCK+ Horizontal interlock for yoke connectors. This should be about 5 V when closed or 15 V when open. H_RED+ Output of horiz. red centering (also top of the red horiz. yoke). About + 5 VDC. H_GRN+ Output of horz. green centering (top of green horz. yoke). About + 5 VDC H_BLU+ Output of horiz. blue centering (top o[...]

Chapter 2---System Description +80 V + 80 V supply for use by the switching supply of horizontal deflection amplifier Interlocks and protection: Input None Outputs H_LOCK + and H_LOCK-: Used to shut down the switching power supply of the horizontal deflection amplifier in the event of a loose yoke or loose scan reverse connector. This prevents the [...]

Chapter 2---System Description 2.3.9 Convergence/Deflection PCB The Convergence/Deflection Board is located on the bottom side of the card cage under the Horizontal/Vertical Deflection Board. This board drives the convergence coils of the projectors. The following functions are provided by C/D Board: • Generation of various waveforms for the hori[...]

Chapter 2---System Description IIC_CLK IIC_DATA /IIC_SINT X_RE D_CONV X_GRN_CONV X_BLU_CONV Y_RE D_CONV Y_GRN_CONV Y_BLU_CONV V_DRIVE CORR_SYNC WIDTH_CONTROL RED_I LA+ RED_I LA- GRN_IL A+ GRN_IL A- BLU_IL A+ BLU_IL A- X_RED- X_GR N+ X_GR N- X_BLU+ X_BLU- X_RED+ Y_RED- Y_GRN+ Y_GRN- Y_BLU+ Y_BLU- Y_RED+ H_PARABOLA V_PARABOLA V_RA MP V_PARAB 2 3 4 2 [...]

Chapter 2---System Description I 1 ILA_FREQ_N4 Data for selection of frequency of ILA bias circuit I 1 ILA_FREQ_N5 Data for selection of frequency of ILA bias circuit I 1 ILA_FREQ_N6 Data for selection of frequency of ILA bias circuit I 1 ILA_FREQ_N7 Data for selection of frequency of ILA bias circuit I 1 ILA_FREQ_N8 Data for selection of frequency[...]

Chapter 2---System Description I 8 TP_KEY Data for adjustment of top/bottom keystone I 8 TP_KEY_BAL Data for adjustment of top/bottom keystone balance I 1 /RASTER_FIL Control line for the raster fill option, low = raster fill is active I 1 /CONV_ENABLE Convergence enable line low = enabled convergence O 1 ILA_LOCKED Status line for the lock indicat[...]

Chapter 2---System Description ILAs OUTPUTS DESCRIPTION RED_ILA+ The positive output of red ILA driver circuitry, about ± 12 VPP RED_ILA- The negative output of red ILA driver circuitry, about ± 12 VPP GRN_ILA+ The positive output of green ILA driver circuitry, about ± 12 VPP GRN_ILA- The negative output of green ILA driver circuitry, about ± 1[...]

Chapter 2---System Description V_PARAB Vertical parabola wave form. About 4 VPP. V_RAMP Vertical ramp wave form. About 4 VPP. Raster Timing Generator Board INPUTS DESCRIPTION V_DRIVE Square wave HCT level synchronized to vertical sync with 4H duty cycle. High Voltage Power Supply OUTPUTS DESCRIPTION H_ PARABOLA Horizontal parabola for dynamic focus[...]

Chapter 2---System Description 2.3.10 Scan Reversal Board The Scan Reversal Board (SRB) is mounted vertically on the right side of the card cage. The following functions are provided by the SRB: • Reversal of scan in both horizontal and vertical axes • Horizontal width adjustment for each color (R, G &B) • Horizontal current feedback • [...]

Chapter 2---System Description Figure 2-16. Scan Reversal Board, Input/Output Diagram. Scan Reversal Board I /O This section describes the inputs to and outputs from the SRB. The I/O descriptions are arranged by the source/destination of the signal. The assembly communicated with is the primary heading of each group of signals. Those signals are su[...]

Chapter 2---System Description Table 2-15. Scan Reversal Board I/O signals Horizontal / Vertical Deflection Board INPUTS DESCRIPTION H_OUT_ FLYBACK Horizontal output flyback pulse, about 800 VPP H_LOCK+ Horizontal interlock for yoke connectors. This should be about 5 V when closed or 15 V when open. H_RED+ Output of horizontal red centering (also t[...]

Chapter 2---System Description X_BLU+ Output of horizontal blue convergence amplifier Y_RED+ Output of vertical red convergence amplifier Y_GRN+ Output of vertical green convergence amplifier Y_BLU+ Output of vertical blue convergence amplifier OUTPUTS DESCRIPTION X_RED- Current feedback of horizontal red convergence amplifier X_GRN- Current feedba[...]

Chapter 2---System Description V_GRN_YOK+ Top of green vertical yoke V_GRN_YOK- Bottom of green vertical yoke X_GRN_YOK+ Top of green horizontal convergence yoke X_GRN_YOK- Bottom of green horizontal convergence yoke Y_GRN_YOK+ Top of green vertical convergence yoke Y_GRN_YOK- Bottom of green vertical convergence yoke- Blue Yoke Connector NAME DESC[...]

Chapter 2---System Description 2.3.11 Backplane PCB The Backplane PCB is the interface that connects the Power Supplies, VICs, PCBs, and other components together, either through a direct connection to a connector on the Backplane or through cables to connectors on the Backplane PCB. Signals are not modified in any way by the Backplane. It serves o[...]

Chapter 2---System Description 2.4 Image Light Amplifier Technology Section 2.2 explained how the various units, including the ILA ® assemblies, in the Optical System work together to produce the image on the screen. This section focuses mainly on how the ILA ® assembly itself works. An Image Light Amplifier ( ILA ® ) assembly ( Figure 2-18 ) is[...]

Chapter 2---System Description High intensity light from a Xenon Arc Lamp is applied, through a prism (where it is polarized), to the output side of the ILA ® assembly where the liquid crystal layer is located. The polarized light passing through the liquid crystal is modulated (changing the polarity of the light waves), in accordance with whateve[...]

Chapter 2---System Description Model 200 Service Manual 2-65[...]

Chapter 3---Service Adjustments 3.0 Service Adjustments Contents 3.1 Arc Lamp Focus and Alignment ............................................................... 3-1 3.2 Arc Lamp Current Setting ........................................................................ 3-4 3.3 Electronic Module Tilt-up ................................................[...]

Chapter 3 Service Adjustments 3. Use the right/left arrow keys on the remote control and adjust the Flat Field to 0%. 4. From the System menu, select Maintenance, then select #3, ILA® Bias. Record the ILA ® Bias current value (the Green bias will be readable). This bias value will be returned to when this procedure is complete. The Green value on[...]

Chapter 3---Service Adjustments Figure 3-2. Arc Lamp “Hot Spot” (whitest area) is off-center vertically and horizontally. Adjust to center the “hot spot”. 9. Insert a flathead screwdriver into one of the horizontal alignment slots shown in Figure 3-1 and pry back and forth to slide the plate. Center the “hot spot” horizontally. 10. Tigh[...]

Chapter 3 Service Adjustments 3.2 Arc Lamp Current Setting The Arc Lamp current must be set whenever an Arc Lamp or Arc Lamp Power Supply is replaced. Routinely recheck current about every 500 hours of operation. This procedure is performed using two DVMs, for convenience, but can be performed with one DVM by moving the leads back and forth between[...]

Chapter 3---Service Adjustments Adjust the Arc Lamp current with this pot. Place the second DVM, from Step 3, across these terminals. Figure 3-4. Arc Lamp Power Supply aperture. 5. Multiply the results from Step 2 and Step 3 together (Bear in mind that the millivolt reading from Step 3 should be interpreted as amps, i.e. 1millivolt=1 amp). 6. The r[...]

Chapter 3 Service Adjustments 4. Select the Focus test pattern. 5. Select Projection Lens from the menu. 6. Use the up/down arrow keys to zoom the Projection Lens to full telephoto position (smallest image). NOTE: Skip this step when using an optional fixed lens. 7. Use left and right arrow keys to focus the projection lens to get sharply focused s[...]

Chapter 3---Service Adjustments either one of these adjustments while the set screws are loose may cause the CRT to go out of focus or rotate. 3.5 CRT Mechanical Focus The CRT Mechanical focus is factory-set and will not normally require adjustment. When a CRT is replaced, the CRT mechanical focus must be reset. Adjust colors individually. After co[...]

Chapter 3 Service Adjustments CRT Holder Ring Focus Lock Screw Set Screw Set Screw CRT Thumb Screw Guide Plate CRT Shield Figure 3-5. CRT Mechanical Focus adjustments. 3.6 CRT Rotation The CRT tilt adjustment aligns the CRT level with the screen. This is a factory-set adjustment and should not need adjusting unless the CRT or yoke is moved. Remove [...]

Chapter 3---Service Adjustments 4. In the Geometry menu, access Bow, Skew, Pincushion, and Keystone. Note the values for each setting. After recording values, set each to the default level of 128 (For Skew, select the color of the CRT that is to be rotated-the other functions are not color-selectable). This is done so that the CRT Rotation can be p[...]

Chapter 3 Service Adjustments Figure 3-6. RGB Electronic Focus adjustments. 3.8 ILA ® Overlap This adjustment positions the ILA ® assemblies in their sockets. Adjustment should only be made once or whenever an ILA ® is replaced. To determine if this adjustment is necessary: 1. Note the value of the ILA ® bias for Red, Green and Blue so they can[...]

Chapter 3---Service Adjustments damaging the connector, grasp the ILA ® assembly itself, not the connector at the top. 4. If the overlap is at the top or bottom, be sure the projector is level, then slide the spring clip (Figure 4-12) at the top of the ILA ® assembly backward and remove the ILA ® assembly (it will slide out with some resistance)[...]

Chapter 3 Service Adjustments 2. Remove the projector rear cover ( Section 4.2 ). 3. Verify that the jumper is plugged into JA50 and J101 for rear projection or J50 and J100 for front projection ( See Figure 3-7 ). Change jumper if necessary. 4. Replace the projector cover. 5. When changing jumpers for front or rear screen projection, Centering, co[...]

Chapter 3---Service Adjustments Vertical height pots. Figure 3-8. Horizontal/Vertical Deflection Board. To adjust the Vertical height ( see Figure 3-8 ): Remove the rear cover ( Section 4.2) . 1. Select Test Pattern 5, X-hatch. NOTE: Green is the master to which Red and Blue will be matched. The Green height pot should not need adjustment except wh[...]

Chapter 3 Service Adjustments To adjust the horizontal size coils ( see Figure 3-7 ): 1. Continue to use Test Pattern 5, X-hatch. 2. Hide Blue. View Red and Green. 3. If Red is outside of Green on both sides, or inside of Green on both sides, use a Delrin .100 hex alignment tool to adjust the Red horizontal size coil to correct the error. If Red is[...]

Chapter 3---Service Adjustments 7. Under Settings select Text Transfer=Standard Flow Control. Select OK. 8. Under Settings select Communications and choose; Connector=select the PC port being used, Baud Rate=9600 or 19200 (depending on the System Controller Switch block Pos 4-see note below this step), Data Bits=8, Stop Bits=1, Parity=None, Parity [...]

Chapter 3 Service Adjustments 11C. During upload, a progress indicator updates the number of records received. At the completion of the upload, the system will display the following (numerical values are for example only and depend on the Boot Manager version): S-Records processed: 823 Upload Successful Address Range: 0x00000000-0x00006687 Bytes Lo[...]

Chapter 3---Service Adjustments Begin your S-Record upload now (Esc to abort) 12B. Select “Transfers/Send Text File” from the Windows Terminal Menu (normally in Accessories window). In the “Send Text File Dialog” box, select “List Files of Type: All Files” and select the disk and/or directory with the Model 220 software. Select file nam[...]

Chapter 3 Service Adjustments 3-18 Model 200 Service Manual Projection Lens: Use lens paper and wipe the lens clean in a vertical motion from top to bottom. Use compressed air to blow excess dust from the lens. An optical lens cleaning solution can also be used to remove finger smudges. ILA ® Assembly: Clean the ILA ® assembly faces with com pres[...]

Chapter 4---Maintenance (Removal/Replacement) 4.0 Maintenance (Removal/Replacement) Contents 4.1 Introduction .............................................................................. 4-1 4.2 Projector Covers ...................................................................... 4-4 4.3 Air Filters .............................................[...]

Chapter 4---Maintenance (Removal/Replacement) WARNING !!! Various procedures in this chapter involve the removal and replacement of system subassemblies. Ensure that the circuit breaker on the rear panel of the projector is turned off and the AC power plug is removed from the AC outlet PRIOR to attempting any of these procedures. When performing an[...]

Chapter 4---Maintenance (Removal/Replacement) Optical Shield Arc Lamp Air Filter and Cover Lamphouse Dock and Arc Lamp Arc Lamp Power Supply EMI Shield Lower Right Side Panel. Remove to provide access to ALPS and LVPS. High Voltage Power Su pp l y CRT Assemblies, Relay Lenses, ILA ® s, and Video Amplifier PCB. Tilt Card Cage up for access. Card Ca[...]

Chapter 4---Maintenance (Removal/Replacement) 4.2 Projector Covers Prior to removing either cover, review the chapter on Safety and adhere to all warnings and cautions. Latch Levers Holding Slots Interlock Switch. Pull up immediately after removing front or rear cover to reapply power to Arc Lamp cooling fans. Figure 4-2 Rollbar Assembly. To remove[...]

Chapter 4---Maintenance (Removal/Replacement) The power interlock switches for both covers are attached to each cover hinge. 5. When the Latch Levers are inserted into the holding slots, lift the cover off. Be careful not to brush against any of the internal components of the projector when removing the cover. If any undue resistance is felt, stop [...]

Chapter 4---Maintenance (Removal/Replacement) WARNING!!! Dangerous light exists in this area of the projector. Before proceeding with the removal of any subassemblies below, verify that the circuit breaker at the rear of the projector is turned off and the power plug is removed from the AC outlet. To remove the Arc Lamp from the Lamphouse Dock: 1. [...]

Chapter 4---Maintenance (Removal/Replacement) Figure 4-4. Lamphouse Dock and Arc Lamp with cover off. 7. When reinstalling the Arc Lamp, be sure that the Safety Shutter tab on the left side ( Figure 4-4 ) engages the left side of the housing so that the Arc Lamp cooling door opens when the Arc Lamp is installed. 8. After reinstalling the Arc Lamp, [...]

Chapter 4---Maintenance (Removal/Replacement) 4.5 Arc Lamp Power Supply To remove the Arc Lamp Power Supply: 1. Remove the front cover ( Section 4.2 ). 2. Remove the lower-right-front-side panel by removing the 5 pozidrive screws securing it. 3. Remove the 2 pozidrive screws from the bottom of the EMI shield and slide it out of the way to the left.[...]

Chapter 4---Maintenance (Removal/Replacement) 1. Remove the front and rear covers (Section 4.2). 2. Remove the High Voltage Power Supply cover ( Figure 4-5 ) by removing the 2 pozidrive screws that secure the HVPS at the top of the cover and loosening the 1 pozidrive screw at the bottom of the front flap (Do not remove this bottom screw-it is diffi[...]

Chapter 4---Maintenance (Removal/Replacement) NOTE: For the remainder of this procedure refer to Figure 4-6 above. 4. Disconnect the 3 CRT anode cables. 5. Disconnect P44-G2 Out (at the middle-front of the HVPS). 6. Unsnap the cable clamp at the top of the HVPS. 7. Remove the anode cables and the P44 cable from the cable clamp. 8. Disconnect P45 (?[...]

Chapter 4---Maintenance (Removal/Replacement) To remove the Raster Timing Generator, Video Processor, or System Controller PCBs: 1. Turn off power at the remote control and at the circuit breaker on the projector rear panel. 2. Remove the projector rear cover. 3. For the Raster Timing Generator and Video Processor PCBs, grasp the card extractor tab[...]

Chapter 4---Maintenance (Removal/Replacement) Figure 4-7. Convergence/Deflection PCB. 4. Loosen (not necessary to remove) the 5 screws that secure the Convergence Deflection PCB to the electronic module card cage ( see Figure 4-7) . 5. Remove the Convergence Deflection PCB by sliding it upward so the mounting screws will clear the access holes, the[...]

Chapter 4---Maintenance (Removal/Replacement) 2. Disconnect 6 connectors; J 34, J35, J36, J41, J42, and J43. ( see Figure 4-8). Move the cables out of the way. 3. Loosen (not necessary to remove) the 5 pozidrive screws that secure the H/V Deflec tion Board to the electronic module cage. 4. Remove the H/V Deflection PCB by sliding it toward the left[...]

Chapter 4---Maintenance (Removal/Replacement) 2. Remove the 2 flathead screw s that secure the VIC to the projector rear panel. 3. Grasp the VIC connecto r bracket and pull the VIC out (Wiggle the VIC a little, if necessary, to extract it). 4.12 Video Amplifier PCB The Video Amplifier PCB for the 3 CRTs is located under the Electronic Module, on th[...]

Chapter 4---Maintenance (Removal/Replacement) 7. Place the Green CRT Assembly in a safe location on or against one of the other CRT Assemblies. 8. Disconnect the Red and Blue CRT Socket Connectors and gently lay them on the t op of the Video Amplifier Board. 9. Disconnect the 3 connectors (push in slightly, squeeze the tabs, and pull out), J67, J68[...]

Chapter 4---Maintenance (Removal/Replacement) and carefully cut the socket connectors away from the Video Amplifier PCB. The spacers between the CRT Socket Connectors can be discarded. 4.13 Scan Reversal PCB The Scan Reversal PCB is located on the right side of the Electronic Module. To remove the Scan Reversal PCB: 1. Remove the projector rear cov[...]

Chapter 4---Maintenance (Removal/Replacement) Three CRT/Yoke Assemblies are loca ted in the CRT Assembly area below the card cage. To remove a CRT/Yoke Assembly ( refer to Figure 4-11 ): Red ILA Green ILA Metal-Framed Air Filter behind grille. CRT/Yoke Assemblies Air Filter on bottom. Cable Harness to Scan Reversal PCB Relay Lenses Rollbar Bracket [...]

Chapter 4---Maintenance (Removal/Replacement) 8. CAUTION! For the Green CRT/Yoke Assembly only, this step is best performed with the Green CRT still connected to the CRT so cket connector and the ground wire still connected from the CRT to the socket connector. This is because the Green so cket connector is close to the rear of the projector and is[...]

Chapter 4---Maintenance (Removal/Replacement) Figure 4-12. ILA ® Assembly top view. The overlap screws shown are visible after the ILA ® assembly is removed. 4. Loosen the two wingnuts at the top of the appropriate ILA ® assembly ( Figure 4-12 ). 5. Slide the spring c lip at the top of the ILA ® assembly backward ( Figure 4-12 ). This will free[...]

Chapter 4---Maintenance (Removal/Replacement) 5. Loosen the wing nut on top of the Relay Lens mount (the bracket at the rear of the Relay Lens). 6. Remove the 2 long hex bol ts at the front of the Relay Lens ( shown in Figure 4-12 ). 7. Remove the 2 hex bolts at the rear of the Relay Lens (these bolts are level with the bottom of the Relay Lens and[...]

Chapter 4---Maintenance (Removal/Replacement) NOTE: When changing from a zoom to a fixed lens, or vice versa, the ILA ® Back Focus (Section 3.4) may need readjustment. 4.18 Prism Assembly CAUTION! The removal of the Prism Assembly requires removing the Dichroic Mirror Assembly (X-Plate). In most cases this necessitates an optical realignment. HJT [...]

Chapter 4---Maintenance (Removal/Replacement) Figure 4-14. Dichroic Mirror Assembly. 8. Remove the 2 hex bolts from the front of the Prism assembly (see Figure 4-15). Figure 4-15. Prism Assembly mount. 4-22 Model 200 Service Manual[...]

Chapter 4---Maintenance (Removal/Replacement) 9. Remove the Rollbar asse mbly (2 pozidrive bolts/nuts on left side and two nuts on right side). Disconnect and label the 2 connectors on the hinge assembly for the shutter motors (1 in front and 1 in rear). Remove and label the jumper that connects the front interlock switch to the rear interlock swit[...]

Chapter 4---Maintenance (Removal/Replacement) 4-24 Model 200 Service Manual[...]

Chapter 5---Troubleshooting 5.0 Troubleshooting Contents 5.1 Status LEDs ............................................................................. 5-1 5.2 Error Codes .............................................................................. 5-4 5.3 Troubleshooting Guide............................................................. 5-5 5.1 S[...]

Chapter 5---Troubleshooting Figure 5-2. Left side of projector with rear cover off. Figure 5-3. Right Side of projector with rear cover off. 5-2 Model 200 Service Manual[...]

Chapter 5---Troubleshooting Figure 5-4. Convergence/Deflection and Video Amplifier LEDs. 5.2 Error Codes For certain errors that may occur in the Model 200 Projector the software provides error codes that are helpful in determining the nature of the problem. These error codes are visible on the left side of the monitor screen when using a PC connec[...]

Chapter 5---Troubleshooting The error codes listed in Table 5-2 describe problems associated with software (Version 0.9.8) and hardware while the projector is operating. The first column of the table lists the error number code that appears on the PC screen. The second column describes the on-screen text. The third column provides a description of [...]

Chapter 5---Troubleshooting 4.6 “VA PCA Not OK” /VA_OK is High (BAD). 4.7 “VP PCA Missing” “No Slave Ack” status on first poll of VP. 4.8 “VP PCA Not OK” VP_OK is High (BAD) 4.9 “RTG PCA Missing” “No Slave Ack” status on first poll of RTG 4.10 “RTG PCA Not OK” RTG_OK is High (BAD) 4.14 “Lamp Startup” Lamp Failed to l[...]

Chapter 5---Troubleshooting error. If it occurs, copy the 3 lines that appear on the screen, note what occured just prior to this failure, and call Hughes-JVC. 5.3. Troubleshooting Guide Table 5-2 shows some common projector problems, what to check when problems occur, possible solutions and the section in this Service Manual (If User’s Guide con[...]

Chapter 5---Troubleshooting Table 5-3. Troubleshooting Guide (continued) PROBLEM CHECK POSSIBLE SOLUTION SECTION Arc Lamp Brightness flicker or picture is very dim. Arc Lamp may have too many hours of usage. Replace Arc Lamp. 4.4 Image out of focus Spacer balls not visible. Perform the Projection Lens Focus procedure. User’s Guide 5.5.15 ILA ® ?[...]

Chapter 5---Troubleshooting PROBLEM CHECK POSSIBLE SOLUTION SECTION XY Convergence Not enough range in Red or Blue XY convergence. Adjust Red or Blue CENTERING to match Green. 5.5.11 Picture Color Balance Red, Green, or Blue is missing in the image. ILA ® assembly bias voltage is incorrect or there is no signal-replace Video Amplifier Board. 4.13 [...]

Chapter 5---Troubleshooting Table 5-3. Troubleshooting Guide (continued) PROBLEM CHECK POSSIBLE SOLUTION SECTION Picture-Various Problems Image jitter and noise. Replace Video Processor Board. 4.8 Image jitter present at one source only. Replace Raster Timing Generator. 4.8 Image is not level. Level the projector or rotate the CRT Yoke. 3.6 “Flag[...]

Chapter 5---Troubleshooting 5-10 Model 200 Service Manual[...]

Import/Export Model 200 Configuration Data Export / Import Procedure Rev 1.0.0 This appendix defines the steps to perform a C onfiguration Data Export & Im port from the Model 200 projector to a Host Com puter. The Host Computer can be any system that has RS232 download and upload capability, including an IBM-PC compatible, an Apple M acIntosh,[...]

Import/Export 4.3. Select OK with mouse or press Enter key (dialog will be removed) 4.4. Verify TERMINAL screen show s status line at bottom: Stop, Pause, Bytes: 0, Receiving: EXPORT1.TXT 5. Model 200 Menu: Press ENTER key to start export download. NOTE: Som e VT100 Emulator program s (ProComm) will send the ENTER automatically when step 4.3 above [...]

Import/Export 2. Import will alter all projector setup d ata. Prior to starting, several warnings are displayed to prevent unintentional l oss of setup data. 3. Model 200 Menu: 7. System + 5. Maintenance + 6. Import ================================= | WARNING | Importing New Configuration | | ALL SETUP DATA WILL BE | CHANGED! | | | | <ENTER> [...]

Import/Export A-4 Model 200 Service Manual | | | - Press ESC to Continue | ================================= Press ESC to exit the projector Im port operation and return to the Maintenance Menu. There i s a 10 second pause before the screen is redrawn. 8. USER ABORT: Windows TERMINAL: FIRST press STOP to end the Host Upload transfer. Model 200 Menu[...]

Glossary Glossary Of Terms Amorphous Without definite form; not crystallized. Arc Lamp The xenon arc lamp in the Model 200 projector. It operates at high temperatures (160° to 200°) and produces dangerously intensive light with hazardous levels of ultraviolet and infrared radiation. Aspect Ratio The ratio of the picture width to picture height. T[...]

Glossary a total of 525 scanning lines in NTSC transmission. Horizontal Scan Reverses the image projection for front or rear Reversal Jumper projection. Located on the Horizontal Deflection Board. Horizontal Size Coils Adjusting coils on the Scan Reversal Board. Used to adjust the horizontal size (width). Hot Spot The Arc Lamp’s brightest area on[...]

Glossary Luminance Abbreviated as "Y." The portion of the signal that contains the black and white information, which affects brightness. Noise An undesirable electrical interference of a signal. Overscanning Displaying less than the complete area of an image to a viewer (i.e., scanning beyond the visible area). All TV sets are overscanne[...]

Glossary Saturated Color 1) A color as far from white, black or gray as it can be (i.e., vermilion rather than pink). 2) A display misadjustment that results in unnaturally bright colors. Scan To scan is to move across a picture frame a line at a time, either to detect the image, as in an analog or digital camera, or to refresh a CRT- based video s[...]

Glossary Model 200 Service Manual B-5[...]