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This is a very good quality print (scan) of the original SONY service manual. The original from Sony is on very thin paper. Nevertheless it is very clear and sharp and excellent readable. I'm very satisfied to have now this rare document. I've looking for it many years (infrequent). It contains very detailed circuit diagrams, exploded views, part lists, PCB view with good readable connection lines. Very recommended.
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A complete manual with all the needed details of calibrations and service instructions about the radio receiver.
A big deal.
Many thanks !
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Fast delivery and good quality copy. To be recommended
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Excellent product, very clear print. Detailed circuit and assembly diagrams - this enabled me to repair my CD player with confidence. I highly recommend this site.
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Fast access, 100% correct and complete service manual
AV-21BD5EKI AV-21BD5EP AV-21BD5EE AV-21BD5EKIS AV-21BD5EPS AV-21BD5EES
ADJUSTMENTS
+B VOLTAGE CHECK
1. Receive the standard colour bar signal. 2. Connect digital voltmeter between + of B1 Line circuit and GND. 3. Confirm that voltage is DC 123V # 2.0V.
SCREEN
1. Set TV in AV mode without video signal � Black screen. 2. Set [WP Red], [WP Green] and [WP Blue] equal to �32�. 3. Set [Black R], [Black G] equal to �8�. 4. Set TV in normal I mode. 5. Adjust SCREEN VR (on FBT) such that the highest cathode cut-off voltage measured on CRT SOCKET PWB ASS�Y is DC 125V ± 5V.
WHITE BALANCE
NOTE : Confirm SCREEN Adjustment has been adjusted.
â� LOW LIGHT
1. 2. 3. 4. Input the 10-step gray scale signal. (include10% Black) Enter the SERVICE MODE. Turn the SCREEN VR (on FBT) gradually, to where the 2nd gray bar(10% Black) faintly visible. Adjust [Black B] and [Black R] not to the colours on the gray bar.
â� HIGH LIGHT
5. Apply the white signal. 6. Adjust [R DRIVE] and [G DRIVE] so that the picture becomes white.
FOCUS
1. Input the crosshatch pattern signal. 2. Adjust the FOCUS VR (on FBT) to have the best resolution on screen.
VERTICAL GEOMETRY
Adjust [V Amp], [V Shift] and [V Slope], [V Slope] [V S Cor] to compensate for vertical distortion.
HORIZONTAL PICTURE CENTERING
Adjust [H Shift] to have the picture in the center of the screen.
No.51742
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