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OK?..manual is complet and helpfull... for repairing such a old and rare boombox like JVC PCM it is necessary...
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Super Anleitung. Ordentliche Auflösung. Das ganze noch in Deutsch wäre zu schön. Alle Datenblätter sind sauber Kopiert und alle Leitungswege sind sauber ausgeführt
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Thanks God for the internet and thanks for the service like this - proffessional solution on time.
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About the service it's very fast and reliable. About the manual the quality is high enough to read even the tiniest details on the wiring diagrams so you can't ask much more than that, let it alone for a manual of a product from 20 years ago. Thank you, very satisfied.
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The downloaded quality was as good as the orignial
ADJUSTMENTS IMPORTANT NOTICE
Do not attempt to adjust the following service adjustments except when adjustments are required in servicing otherwise it may cause loss of performance and product safety. + B VOLTAGE ADJUSTMENT 1. Receive white raster pattern. 2. Set controls to normal. 3. Connect digital voltmetre to test point TP-B and GND. 4. Adjust voltage to 150 ±0.5V by using VR641. DRIVE ADJUSTMENT 6. Select item no.3 �REGULAR 3, GRY� (G-Drive) or 4 �REGULAR 4, GRY� (B-Drive) and adjust both initially to 3F. 7. Change data value of each item by using LEVEL + or LEVEL - button to obtain the proper white balance. PCC ADJUSTMENT AGC ADJUSTMENT 1. Input and tune an RF signal which is UHF to the clearest station. 2. Connect digital voltmetre to test point TP-A and GND. 4. Enter to the service mode and select mode �REGULAR�, and select item no.1 �REGULAR 1, AGC�. 5. Press the LEVEL+ or LEVEL - button to adjust voltage to be 3.2Vdc. PCC ADJUSTMENT 1. Receive cross hatch pattern and set screen mode to �FULL�. 2. Enter to the service mode and select mode �WIDE�, and select item no. 7 �WIDE 7.P PCC�. 3. Press the LEVEL+ or LEVEL - button to adjust the vertical line to be straight.
FOCUS ADJUSTMENT By using FOCUS VR, adjust focus control for well defined scanning lines. TRAPEZOID ADJUSTMENT 1. Receive cross hatch pattern and set screen mode to �FULL�. 2. Enter to the service mode and select mode �WIDE�, and select item no. 8 �WIDE 8.P TRP�. 3. Press the LEVEL+ or LEVEL - button to correct the trapezum distortion of the vertical line.
GREY SCALE ADJUSTMENT SCREEN ADJUSTMENT 1. Receive black & white pattern. 2. Enter to the service mode and select mode �REGULAR�, and select item no. 2 �REGULAR 2, CUT�. The horizontal line will appear on the screen. 3. Set the SCREEN VR for one colour to be just visible. 4. Using the numeric buttons shown set each colour to minimum by decreasing to the point where any further decrease resets the adjustment to maximum value. BIAS ADJUSTMENT 5. By using the buttons 1, 2, 4, 5, 7, 8 on the remote control, adjust the line to be white. The key allocation is as follows;
Button No. Operation 1 Increase Red 2 Decrease Red 4 Increase Green 5 Decrease Green 7 Increase Blue 8 Decrease Blue
-10C2WZV
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