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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Da-Lite Senior Electrol, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
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The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Da-Lite Senior Electrol one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Da-Lite Senior Electrol. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Da-Lite Senior Electrol should contain:
- informations concerning technical data of Da-Lite Senior Electrol
- name of the manufacturer and a year of construction of the Da-Lite Senior Electrol item
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- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Da-Lite Senior Electrol alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Da-Lite Senior Electrol, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Da-Lite service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Da-Lite Senior Electrol.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Da-Lite Senior Electrol item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
DA-LITE SCREEN COMP ANY , INC. 3100 North Detroit Street Post Office Box 137 Warsaw , Indiana 46581-0137 Phone: 574-267-8101 800-622-3737 Fax: 574-267-7804 www .da-lite.com e-mail: info@da-lite.com Instruc tion Book for S E N I O R E L E C T R O L ® T h e D a - L i t e D i f f e r e n c e .[...]
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Page 2
PRE-INST ALLA TION 1 INST ALLA TION HANGERS (If required) 1 . Make sure one hanger is appro ximately 25" from end of case (motor end). 2. Make sure second hanger is appro ximately 1 1 1 ⁄ 2 " from opposite end of case. 3. Place a third hanger on the center line of fabric. 4. Make sure hangers are placed to fit into notc hes pro vided on[...]
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Page 3
SCREEN ADJUSTMENT 2 Surface tra vel is stopped automatically in the fully opened and closed positions by limit switc hes that are properly ad- justed at Da-Lite. Should it be necessar y to adjust for more or less drop of pict ure (viewing area), proceed in the follo wing manner: MORE SCREEN DROP 1 . Place operating switc h in “down” position. 2[...]
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Page 4
SENIOR ELECTROL ® INSTRUCTIONS 3 SIDE VIEW END VIEW BOTTOM VIEW OUTLET BOX SUGGESTED SLOT WIDTH PICTURE SURFACE WALL OR CEILING TYPE HANGER 12 3 ⁄ 16 12 3 ⁄ 16 3 ⁄ 4 3 ⁄ 4 3 ⁄ 4 3 ⁄ 4 3 ⁄ 4 11 3 ⁄ 8 ± 1 ⁄ 16 18 5 ⁄ 8 2 9 1 ⁄ 2 ± 1 ⁄ 4 “ B“ 3 ⁄ 4 HINGED ACCESS P ANEL IN BOTTOM (FOR ALL WIRING & ADJUSTMENTS) 8 ± [...]
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Page 5
SENIOR ELECTROL ® INST ALLA TION 4 UP LIMIT SWITCH DOWN LIMIT SWITCH BLACK BLACK BLACK BLACK BLACK BLACK (DOWN) RED (UP) BLACK (DOWN) CAP ACITOR RED RED (UP) WHITE WHITE (COMMON) UP UP ADJ. DOWN ADJ. WHITE WHITE BLACK WITH YELLOW DOWN OFF INTERNAL WIRING EXTERNAL WIRING TO BE COMPLETED BY INST ALLER RED GREEN (GROUND) MOTOR: 120V . 60 CYCLES 1/10H[...]
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Page 6
TROUBLESHOOTING SYMPTOM 1 . Screen will not operate or will not go “down” . 2. Motor hums. CAUSE (a) Blown fuse. (b) T ripped circuit breaker . (c) Improper wiring to operating switc h. (d) Improper wiring to junction box in screen. (e) Thermal o verload tripped (ex ces- sive o verheating). (f) Burned out motor winding. (g) Def ective limit swi[...]
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Page 7
6 TROUBLESHOOTING SYMPTOM 3. Screen will not mov e “up.” Motor does not hum. Motor hums. CAUSE (a) Blown fuse or tripped circuit breaker . (b) No pow er bet ween red and white leads in junction box. (c) Thermal o verload tripped. (d) Burned out motor winding. (e) T emporar y binding. (f) Burned out capacitor . (g) Broken wire or loose connectio[...]
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Page 8
TROUBLESHOOTING SYMPTOM 9. Inconsistent stopping points. CAUSE (a) Limit switc h trav el plate not mov - ing. (b) Excessiv e end play in lead screw of limit switc h assembly . SOLUTION (a) Tighten set screws located on nylon gears (driv es limit switc h). (b) Tighten nut between adjusting knobs. Tighten lead screw of limit switc h. 1 0. Screen does[...]