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I am very grateful for this manual. Without it could not repair my receiver.
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Manual found fast and good quality, very helpfull service
SERVICE CONTROL ADJUSTMENT
B1 POWER SUPPLY ADJUSTMENT 1. Set VR641 to be mechanical centre before pressing the main switch. 2. Tune the receiver to PAL circular pattern. 3. Set brightness and contrast controls to normal. 4. Connect digital V-meter to test point "TP-B". 5. By using VR641, adjust voltage to 150 Â± 0.5 V.
V-Outout SW501 +8V TP-E o-coupler SW1901 SW1902 SW1903 SW1904 Prog.+ Prog.Vol.+ Vol.VR361 Q641 IC651
Q681 T101 +B ADJ.
5. Set mode to one horizontal scanning line, how to set refer to "service mode" 6. Set screen VR for one colour to be just visible. [BIAS VR ADJUSTMENT] 7. By using VR601, VR611 or VR621, adjust line to be white. 8. Set screen mode OFF, how to set refer to "service mode" [DRIVE VR ADJUSTMENT] 9. By using VR602 and VR612, adjust white balance. HIGH VOLTAGE & WIDTH ADJUSTMENT [HIGH VOLTAGE ADJUSTMENT] 1. Tune the receiver to circular pattern. 2. Set brightness and contrast controls to maximum. 3. Connect digital V-meter to both terminals of R224, and high voltage meter to CRT anode. 4. Confirm high voltage to be 26.0 Â± 1 KV at beam current 1.3, and less than 29.0 KV at 0 beam current. [H-WIDTH ADJUSTMENT] 5. Adjust VR462 to obtain proper VR642
T611 Converter Trans Transformer
IC801 CPU A101 Tuner
AFT ADJUSTMENT 1. Tune the receiver to the clearest station. 2. By using T141, adjust AFT to obtain the best picture.
Main switch Fuse
H- width. 6. Reconfirm high voltage. H-CENTRE ADJUSTMENT 1. Tune the receiver to circular pattern. 2. Adjust H-centre by using VR361.
VR501 SW501 1H Delay Q-SOUND Board
V-CENTRE ADJUSTMENT R224 1. Tune the receiver to circular pattern. 2. Adjust V-centre by using SW501.
IC271 1H Delay
IC1202 T141 AGC Int./Ext. SW. VR641
V-SIZE ADJUSTMENT 1. Tune the receiver to circular pattern. 2. Adjust V-size by using VR501.
AGC ADJUSTMENT NOTE: Do not attempt this adjustment with weak signal. 1. Tune the receiver to the clearest station. 2. Set AGC VR(VR131) in direction which causes snow noise to appear, then in the opposite direction until snow noise just disappears.
FOCUS ADJUSTMENT By using FOCUS VR, adjust focus control for good scanning lines.
IC201 IF/Video/Croma/Def. Q501 VR361 VR462 H-Centre
GREY SCALE ADJUSTMENT [SCREEN VR ADJUSTMENT] 1. Tune the receiver to the white pattern. 2. Set brightness and contrast controls to normal. 3. Set VR602and VR612 to be mechanical centre. 4. Turn VR601, VR611 and VR621 fully counterclockwise.
AGC Int./Ext. SW.
IC1201 AV2 SW.
A101 Tuner Flyback TP-B