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The document was usefull, and it was exactly what I was looking for.
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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.
3-7-2. Video Memory SIZE/SHIFT/BLKG Adjustments
1. Input the monoscope signal to VIDEO IN. 2. Press the INPUT SELECT VIDEO key to project the monoscope signal on the screen. 3. Select VIDEO MEMORY 1 using the SWITCHER/ VIDEO MEMORY/INDEX changing switch and the SWITCHER/VIDEO MEMORY/INDEX key. 4. Press the RGB SHIFT key and adjust the center of the monoscope signal to the screen center using the �, �, � and � keys. 5. Press the RGB SIZE key and adjust the horizontal and vertical sizes of the monoscope signal to 4:3 using the �, �, � and � keys. 6. Press the BLKG key to adjust the screen top blanking to the position 40 ± 10 mm outside the effective screen using � and � keys. 7. Press the MEMORY key. 8. Store the data of VIDEO MEMORY 1 to VIDEO MEMORY 2 to 5, too. 9. Select VIDEO MEMORY 6. 10. Press the RGB SHIFT key and adjust the center of the monoscope signal to the screen center using the �, �, � and � keys. 11. Press the RGB SIZE key and adjust the horizontal and vertical sizes of the monoscope signal to 4:3 using the �, �, � and � keys. 12. Press the BLKG key to adjust the screen top blanking to the position 40 ± 10 mm outside the effective screen using � and � keys. 13. Store the data of VIDEO MEMORY 6 to VIDEO MEMORY 7_10, too.
3-8. HIGH VOLTAGE SCREEN DISTORTION ADJUSTMENT
1. Select INPUT A and input the fH = 64 kHz RGB stripe signal to the RGB terminals. 2. Press CONTR (+) and BRIGHT (+) to set the contrast and bright levels to the maximum. 3. Adjust RV1 of the EA board so that the left and right vertical lines of the stripes can be straight.
NG
OK
3-9. PROCEDURE AFTER COMPLETING ADJUSTMENTS
After completing all adjustment, change the dip switch S201-1 on the YA board from �OFF (right)� to �ON (left)� to save the adjustment data in the memory.
VPH-G90E/G90U/G90M
3-19
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