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Very nice and real Service Manual, I didn't thought it actually exist in the real world at all.
VERY NICE FOR COURTESY AND PRECISION!.
tHE SITE IS VERY IMPORTANT FOR ALL DEVICES
+++ Is is fine, that was what i looking for. Thanks! +++
A very good complete archive, i am very satisfied for document.
The Service Manual received was helpful. The electronic information is exactly what I needed.
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 130 Â± 0.5 V.
V-Outout +8V SW1901 SW1902 SW1903 SW1904 Prog.+ Prog.Vol.+ Vol.Q641 VR361 VR131 T141 T481 TP-E o-coupler
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 25.0 Â± 1 KV at beam current 1.1mA, and less than 28.0 KV at 0 beam current. [H-WIDTH ADJUSTMENT] 5. If H-width is too wide or narrow, connect or disconnect a lead wire J213. 6. Reconfirm high voltage.
Q681 +B ADJ.
IC801 CPU A101 Tuner
RC Transformer TP-
AFT ADJUSTMENT 1. Tune the receiver to the clearest station. 2. By using T141, adjust AFT to obtain the best picture.
Fuse Main switch
IC271 1H Delay
V-CENTRE ADJUSTMENT 1. Tune the receiver to circular pattern. 2. Adjust V-centre by using SW501.
AGC Int./Ext. SW. VR641 IC1201 AV2 SW.
SW501 V-Centre 611
1. Tune the receiver to circular pattern. 2. Adjust V-size by using VR501. AGC ADJUSTMENT VR131 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. 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. 5. Set mode to one horizontal scanning line, how to set refer to "service mode"
A101 Tuner Transformer
FOCUS ADJUSTMENT By using FOCUS VR, adjust focus control for good scanning lines.
IC201 IF/Video/Croma/Def. Q501 H-Centre SIF Board
AGC Q4 Int./Ext. SW.
H-CENTRE ADJUSTMENT 1. Tune the receiver to circular pattern. 2. Adjust H-centre by using VR361.