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Everything okay, thanks a lot. It was a pleasure for me to make a deal with you.
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A deal without problems, very fast and the manual is a good quality. Sorry for the my english.
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Superb service and excellent quality of the document received
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no problems with the purchase of a circuit diagram
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Scan are good quality and overall just what i was looking for. Thanks!
TROUBLESHOOTING
2. SYSTEM CIRCUIT
A. LED DISPLAY
No LED display.
Is 5V obtained at IC701 pin # 9, 25? YES
NO Check L703, pin#6 of PJ701
NO Oscillation at IC701 pin #1? Exchange IC701.
YES NO
Is there KEY/SEG signal?
Check PCB
YES NO KEY output at PORT of IC701? Check IC 701 pin #6, 7, 8
YES NO SEG output at PORT of IC701? Check IC 701 pin # 10-12,14,15
Exchange IC701.
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