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JVC AV-29V514/B manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    SERVICE MANUAL COPYRIGHT © 2004 Victor Co mpan y of Japan, Limited No.YA139 2004/9 FLAT COLOUR TELEVISION YA139 2004 9 AV-29V514 /B TABLE OF CONTENTS 1 PRECAUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2 SPECIFIC SERVICE INSTRUCTIONS . . [...]

  • Page 2

    1-2 (No.YA139) SPECIFICATION Design & specification s are subject to cha nge without notice. Items Contents Dimensions (W × H × D) 81.2cm × 58.4cm × 52.0cm Mass 41kg TV RF System B, G, I, D, K, M Colour System TV Mode Video Mode PAL / SECAM / NTSC3.58 / NTSC4.43 PAL / SECAM / NTSC3.58 / NTSC4.43 Stereo System A2 (B / G) / NICAM (B / G, I, D[...]

  • Page 3

    (No.YA139)1-3 SECTION 1 PRECAUTION 1.1 SAFETY PRECAUTIONS (1) The design of th is product contains special hardware , many circuits and components specially fo r safety purposes. For continued prot ection , no changes shoul d be made to the original desig n unless authorized in writing by the manufacturer. Repla cement parts must be identical to th[...]

  • Page 4

    1-4 (No.YA139) SECTION 2 SPECIFIC SERVICE INSTRUCTIONS 2.1 FEATURES • New chassis design enables use of an interactive on-screen con trol. • Pure flat CRT produces fine te xtu red picture in every detail. • Wide range voltage (110V ~ 240V) for AC power inpu t. • With AUDIO/VIDEO/S-VIDEO/COMPONENT input terminals. •I 2 C bus control utiliz[...]

  • Page 5

    (No.YA139)1-5  FRONT PANEL CONTROLS  REAR TERMI NAL IN (VIDEO-3) VR MENU OK L/MONO CHANNEL VOLU M E TV/VIDEO EXIT POWE R 4 3 2 1 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 HEADPHONE jack IN (VIDEO-3) : VIDEO IN (VIDEO-3) : AUDIO L/MONO IN (VIDEO-3) : AUDIO R MENU (OK) button CHANNEL (-/+) buttons VOLUME (-/+) buttons TV/VIDEO EXIT buttons [...]

  • Page 6

    1-6 (No.YA139) 2.3 MAIN CPU [MAIN PWB : IC701] PIN FUNCTION Pin no. Pin name I/O Remark 1 VssP2 - GND 2 VssC4 - GND 3 V1.8C4 I 1.8V (Digital) 4 V3.3A3 I 3.3V 5 VrefP_Sdac I 3.3V (Positive) 6 VrefN_Sdac - GND 7 VrefP_Sdac I 3.3V (Negative ) 8 VrefN_Sdac - GND 9 VrefP_Sdac I 3.3V (Positive) 10 XtalIn I 24.567MHz for system clo ck 11 XtalOut O 24.567M[...]

  • Page 7

    (No.YA139)1-7 SECTION 3 DISASSEMBLY 3.1 DISASSEMBLY PROCEDURE 3.1.1 REMOVING THE REAR COVER • Unplug the power cord. (1) Remove the 16 screws [A] as shown in Fig.1. (2) Withdraw the REAR COVER toward you. CAUTION: When reinstalling th e rear cover, carefully push it inward after inserting the MAIN PWB into the REAR COVER groove. 3.1.2 REMOVING TH[...]

  • Page 8

    1-8 (No.YA139) Fig.1 CRT SOCKET PWB FRONT CONTROL PWB (1/2) FRONT CONTROL PWB (2/2) MAIN PWB FBT CHASSIS BASE CONTROL BASE ( × 4) ( × 16) A PICTURE TUBE D C A V TERMINAL BOARD FRONT CABINET CHASSIS BASE CONTROL BASE [FRONT SIDE] E F (X2) G SPEAKER (X2) G SPEAKER Fig.2 Fig.2 CLA W B CLA W B (under side) (under side) REAR COVER[...]

  • Page 9

    (No.YA139)1-9 3.2 REPLACEMENT OF MEMORY IC 3.2.1 MEMORY IC This TV uses the following memory IC. Memory IC: IC702 on MAIN PWB The memory IC memorizes da ta for correctly operatin g the video and deflection circuits. When replac ing the memory IC, be sure to use the same type IC written with the initial values of data. In other words, use the spec i[...]

  • Page 10

    1-10 (No.YA139) 3.2.3 FACTORY SETTING VALUE  SETTING OF SYSTEM CONSTANT SET Table 1 SYSTEM MULTI COMB YES TIL T YES NO SUPER BASS TEXT NO LANGUAGE E/T SOUND STEREO BILINGUAL NO BLUE BACK MUTE NO COLOUR AUTO NO ECO SENSOR YES SURROUND YES PICTURE BOOSTER NO COMPONENT YES PIP NO S INPUT YES Setting item Setting content Setting value YES NO YES NO [...]

  • Page 11

    (No.YA139)1-11  SETTING OF BASIC FUNCTIONS Table 2  SETTING OF MENU SCREEN Table 3  SERVICE MENU SETTING ITEMS Table 4 Setting item Setting value POWER Off SUB POWER On VOLUME 15 COLOR SYSTEM PAL SOUND SYSTEM B/G PICTURE MODE (VSM) BRIGHT CINEMA SURROUND OFF OFF TIMER OFF STEREO MODE STEREO CHANNEL POSITION PR1 Setting item Setting value I[...]

  • Page 12

    1-12 (No.YA139) 3.3 REPLACEMENT OF CHIP COMPONENT 3.3.1 CAUTIONS (1) Avoi d heating for more than 3 seconds. (2) Do not rub the electrodes and the resist parts of the pattern. (3) W hen removing a chip part, melt the solder adequately. (4) Do not reuse a chip part af ter removing it. 3.3.2 SOLDERING IRON (1) Use a high insulation soldering iron wit[...]

  • Page 13

    (No.YA139)1-13 SECTION 4 ADJUSTMENT 4.1 ADJUSTMENT PREPARATION (1) You can make the necess ary adjustments for this unit with either th e remote control u nit or with the adjustment equipment and parts as given below. (2) Adjustment with the remote co ntrol unit is made on th e basis of the initial setting value s, however, the new settin g values [...]

  • Page 14

    1-14 (No.YA139) 4.5 ADJUSTMENT LOCATIONS E1 TO P CRT EARTH (BRAIDED ASS'Y) CRT EARTH (BRAIDED ASS'Y) U TP-47B TP-47G TP-47R E2 HV I 2 C UPPER : FOCUS IC702 CRT SOCKET PWB ASS’Y (SOLDER SIDE) T 18 16 FRONT FRONT FRONT POWER CORD SPEAKER (L) DEG COIL HVT MAIN PWB ASS’Y FRONT CONTROL PWB ASS’Y (1/2) FRONT CONTROL PWB ASS’Y (2/2) J804[...]

  • Page 15

    (No.YA139)1-15 4.6 BASIC OPERATION IN SERVICE MENU Operate the SERVICE MENU with the remote control unit. 4.6.1 SERVICE MENU ITEMS With the SERVICE MENU, various settings ( adjustments) can be made, and they are broadly classified in the fo llowing items of se ttings: 4.6.2 BASIC OPERATION IN SERVICE MENU 1. HOW TO ENTER SERVICE MENU Press the [DIS[...]

  • Page 16

    1-16 (No.YA139) 4.6.3 SERVICE MENU FLOW CHART Fig.1 1. IF SERVICE MENU 1. VCO 2. DELAY POINT IF SERVICE MENU VCO (CW) ***** MHz TOO HIGH ABOVE REFERENCE JUST REFERENCE BELOW REFERENCE TOO LOW DELAY POINT AGC TAKEOVER ** 2. V/C Setting item 1. SCREEN 2. CUTOFF (B/G) 3. WDR (R/G/B) 4. BRIGHT (TV/VDO1/2/3) 5. CONT (TV/VDO1/2/3/TV 16:9/VDO16:9) 6. COLO[...]

  • Page 17

    (No.YA139)1-17 4.7 ADJUSTMENT PROCEDURE 4.7.1 B1 VOLTAGE 4.7.2 FOCUS ADJUSTMENT 4.7.3 IF CIRCUIT ADJUSTMENTS Item Measuring instrument Test point Adjustment part Description B1 VOLTAGE check Signal generator DC voltmeter B1 (pin 1) GND (pin 5) [CN00X connector in MAIN PWB] (1) Re ceive a black and white signal. (2) Co nnect a DC voltmeter between B[...]

  • Page 18

    1-18 (No.YA139) 4.7.4 VIDEO CIRCUIT ADJUSTMENTS • The setting (adjustment) using the remote control unit is made on the basis of the initial setting values. • The setting values which adjust the screen to the optimum co ndition can be different from the initial setting values . • Do not change the initial settin g valu es of the settin g (adj[...]

  • Page 19

    (No.YA139)1-19 WHITE BALANCE (High light) adjustment Signal generator Remote control unit [2. V/C] 3. WDR (R ) 3. WDR (G) 3. WDR (B) Notes: • Proceed to the following adjustme nt after having completed the WHITE BALANCE (Low light) adjustment. • Set PICTURE MODE (VSM) to "BRIGHT". (1) Re ceive a PAL black and white signal (colour off)[...]

  • Page 20

    1-20 (No.YA139) SUB COLOUR 1 adjustment Remote control unit [2. V/C] 6. COLOUR [Method of adjustmen t without measuring instrument] Notes: • Proceed to the following adjustmen t after having completed the SUB CONTRAST adjustment. • Set PICTURE MODE (VSM) to "BRIGHT". - PAL COLOUR - (1) Receive a PAL broadcast. (2) Select 2. V/C from t[...]

  • Page 21

    (No.YA139)1-21 4.7.5 AUDIO SETTING This submenu is for display only, no adjustment is required. SUB TINT 1 adjustment Signal generator Remote control unit [2. V/C] 7. TINT [Method of adjustment with out measuring in strument] Notes: • Proceed to the following adjustment after havi ng completed the SUB CONTRAST adju stment. • Set PICTURE MODE (V[...]

  • Page 22

    1-22 (No.YA139) 4.7.6 DEFLECTION CIRCUIT ADJUSTMENTS • The setting (adjustment) using the remote control unit is made on the basis of the initial setting values. • The setting values which adjust the screen to the optimum co ndition can be different from the initial setting values . • When performing deflection circuit adjustment, adjusts PAL[...]

  • Page 23

    (No.YA139)1-23 V. HEIGHT adjustment Signal generator Remote control unit [4. DEF] 3. V-SIZE 14. V-ZOOM - PAL V. HEIGHT - (1) Re ceive a PAL crosshatch signal. (2) Sel ect 3. V-SIZE . (3) Set the initial setting val ue of 3. V-SIZE . (4) Sel ect 14. V-ZOOM . (5) Set the initial setting val ue of 14. V-ZOOM . (6) Adj ust 14. V-ZOOM to make the vertic[...]

  • Page 24

    1-24 (No.YA139) SIDE PIN adjustment Signal generato r Remote control unit [4. DEF] 7. EW-PIN - P AL SIDE PIN - (1) Receive a PAL crosshatch signal. (2) Select 7. EW-PIN . (3) Set the initial setting value of 7. EW-PIN . (4) Adjust 7. EW-PIN so that the first vertical lines at the left and right edges on the screen are straight. - NTSC SIDE PIN - (1[...]

  • Page 25

    (No.YA139)1-25 CORNER PIN adjustment Signal generator Remote control unit [4. DEF] 8. COR-UP 9. COR-LO - PAL CORNER PIN - (1) Re ceive a PAL crosshatch signal. (2) Sel ect 8. COR-UP . (3) Set the initial setting val ue of 8. COR-UP . (4) Sel ect 9. COR-LO . (5) Set the initial setting val ue of 9. COR-LO . (6) Adj ust 8. COR-UP and 9. COR-LO so tha[...]

  • Page 26

    1-26 (No.YA139)  COMPRESS : ON (16:9) Item Measuring instrument Test po int Adjustment part Description V. HEIGHT adjustment Signal generato r Remote control unit [4.DEF] 14. V. ZOOM 3. V-SIZE - PAL V. HEIGHT - (1) Receive a PAL cro sshatch signal of vertica l frequency 50Hz. (2) Press the [MENU] key and select PICTURE . (3) Select PICTURE FEATU[...]

  • Page 27

    (No.YA139)1-27 SIDE PIN adjustment Signal generator Remote control unit [4. DEF] 7. EW-PIN - PAL SIDE PIN - (1) Re ceive a PAL crosshatch signal. (2) Sel ect 7. EW-PIN . (3) Set the initial setting val ue of 7. EW-PIN . (4) Adj ust 7. EW-PIN so that the first vertical lines at the left and right edges on the screen are straight. - NTSC SIDE PIN - ([...]

  • Page 28

    1-28 (No.YA139)  VIDEO - 2 SET: COMPONENT 4.7.7 VSM PRESET SETTING Item Measuring instrument Test po int Adjustment part Description H. POSITION adjustment Signal generato r Remote control unit [4. DEF] 4. H-CENT (1) Receive a PAL circle pa ttern signal to VIDEO-2 component terminal. (2) Select VIDEO-2 SET from the MENU and set VIDEO-2 SET to CO[...]

  • Page 29

    (No.YA139)1-29 4.7.8 PURITY AND CONVERGENCE  PURITY ADJUSTMENT Note: The final adjustment of CON VERGENCE must be done after the FOCUS adjustment. (CONVERGENCE is chang ed by FOCUS adjustment.) When makes difference by FOCUS adjustment, should be reconfirmi ng PURITY ad justment. (1) Demag netize CRT wit h the demagnetizer. (2) Lo osen the retai[...]

  • Page 30

    1-30 (No.YA139)  STATIC CONVERGENCE ADJUSTMENT (1) Input a crosshatch signal. (2) Using 4-pole convergence m agnets, overlap the red and blue lines in the centre of the screen (Fig.1) and turn them to magenta (red/blue). (3) Using 6-pole convergence ma gnets, overlap the magenta (red/blue) and gr een lines in the centre of the screen and turn th[...]

  • Page 31

    (No.YA139)1-31 SECTION 5 TROUBLESHOOTING 5.1 SELF CHECK FUNCTIONS 5.1.1 OUTLINE This model has sel f check functions given b elow. When an abnorma lity has been detected , the SUB POWER is turned off and POWER LED flashes to inform of the failure. An a bnormality is detect ed by the si gnal input state of the control line connecte d to th e microco[...]

  • Page 32

    1-32 (No.YA139)[...]

  • Page 33

    (No.YA139) AV & MULTIMEDIA COMPANY VIDEO DISPL AY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Y okohama, kanagawa-prefecture, 221-8528, J apan Victor Company of Japan, Limited WPC Printed in Japan[...]