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Awesome manual. Complete diagrams of all board assemblies as well as how to get to each part of the t.v. down to the individual screws and their locations. Get it.
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perfect copy, im very satisfied, i was need the diagram over the powersupply and
the copy was very sharp
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This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
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IF PRINTED CIRQUIT BOARD WIRING VIEW WAS ONE TONE LIGHTER, THEN 5 STAR RANK HAS TO BE MY CHOISE.
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Very usefull, good quality drawings !
Muito útil encontrei todas as informações necessárias.
Copy image Center Within 2.0mm
b
Within 2.0mm
(Original)
Original center
a
Copy image
Center
(Duplex copy tray) When the image is shifted to direction of a, loosen two cup screws and turn the adjustment screw in the direction of A. When the image is shifted to direction of b, loosen two cup screws and turn the adjustment screw in the direction of B. After completion of the adjustment, tighten two cup screws (M4).
2mm or less (Copy)
Copy image center
2mm or less (Copy)
Center copy image
Move the lens to A.
Move the lens to B.
3 If the center shift is outside the specified range, change the lens
unit installing position back and forth.
e. Copy image center position adjustment in the RADF unit original tray mode. (The RADF unit original tray position is changed.) 1 Set the test chart on the RADF tray. 2 Select the paper feed tray unit (No. 1), and make a copy on A4
(11 � 8.5") paper in the RADF copy mode. Check for the copy image center shift.
B A
Original center
(Original)
Lens
Lens unit
3.0mm or less (Copy)
Copy image center
Center 3.0mm or less (Copy) copy image
When the lens unit installing position is changed, be sure to perform procedures a � e again. Be sure also to adjust the blank lamp position.
3 If the center shift is outside the specified range, change the RADF
tray unit original width adjustment guide position.
(3) Focus adjustment (No. 4/5 mirror unit reference position adjustment)
The focus adjustment is made by making a normal copy, a reduction copy, and an enlargement copy with SIM 48-1 (48E, 48D, 48F) and checking focus. When replacing the lens or in the case of memory trouble, however, the method by making copy and checking focus and entering the adjustment value is not efficient. In that case, calculate the input value depending on the value displayed on the lens and the table, enter the adjustment value temporarily with SIM 48-3, make copies with SIM 48-1 (48E, 48D, 48F), check the focus, and enter the final adjustment value.
Loosen the screw.
I. Focus adjustment value input (Temporal adjustment value input)
Enter the input for each of the normal copy, the enlargement copy, and the reduction copy with SIM 48-3.
f. Change the lens unit position back and forth. (All copy modes)
This adjustment is made only when the copy image center shift adjustment cannot be completed with procedures a � e.
Normally this adjustment is not required. In this adjustment, the input value is calculated depending on the value displayed on the lens and the formula and the table, and it is set. Therefore, the adjustment value to be entered is not the final adjustment value. It is only a temporary value. When replacing the lens or in the case of memory trouble, however, the method by making copy and checking focus and entering the adjustment value is not efficient.
1 Set the test chart on the original table using the mark on the
original stopper as the reference.
2 Select the paper feed tray unit (No. 1), and make a copy on A4
(11 � 8.5") paper. Check for the copy image center shift.
6 � 31
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