This manual is accurate and of high quality. It is only volume 2 of the service manual. This is schematic, parts lists, and exploded mechanical drawings. The theory of operation and the diss-assembly instructions are in volume 1. The unit can be tricky to dis-assemble portions of so the volume 1 manual can be important. The product description of the manual is accurate but it does not say anything about volume 1 and the image of the front page does clearly say Volume 2.
Wellll again thank you very much fast and effective. Clear and well done for such an old TV!!!!
Text excerpt from page 24 (click to view)
B CD C.B
TP4
1
IC404
TP3
IC401
1
SFR430
A MAIN C.B
L801
TP2
2
3
< CD SECTION >
1. Focus Bias Adjustment Make the focus bias adjustment when replacing and repairing the optical block.
Oscilloscope (DC range)
EYE PATTERN must be CLEAR and MAX VOLT / DIV: 200mV TIME / DIV: 0.5µs MAX
0V
+
TP3 (RF) TP4 (VREF)
< TAPE RECORDER SECTION >
2. Bias Adjustment � Test tape: TTA-630 � Test Point: TP2 � Adjustment location: L801 � Method: L801 .............................................................. 85kHz±2kHz 3. Azimuth Adjustment Condition: � Test tape: TTA-320 � Test point: PHONE JACK � Adjustment location: Azimuth adjustment screw Method: Play back the test tape and adjust the screw so that the output is maximum.
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1) Connect an oscilloscope to the test point TP3 (RF) and TP4 (VREF). 2) Turn on the power switch. 3) Insert test disc TCD-782 (YEDS-18) and play back the second composition. 4) Adjust SFR430 so that RF signal of the test point TP3 (RF) is MAX and CLEAREST.