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Good-quality scans. Detailed description. I hope I can repair the machine.
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High-quality scanning. Detailed description. Recommend for all technician. A+++
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This is a good quality scan of the original Service Manual from Nordmende, Germany. Contains the circuit diagram, PCB layout, adjust/tune instructions as well. It is NOT in English but in GERMAN language! That was quite right for my german friend from the lower east side in Berlin.
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Received via e-mail this PDF manual is worth the money. This is a quality scan of a manual in excellent condition and is just as good as having the original manual in hand. I have later seen the original manual and it was printed in colour, but this particular manual is black & white but scan resolution is high end quality! All drawings and pictures are presented in great detail. So, nearly perfect score in my opinion.
If you own the turntable you also should own the manual!
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I was very satisfied with the service manual I ordered and downloaded. I will definitely buy again from this seller.
5 Troubleshooting
5-1-13 High Voltage Failure
No Check and replace IC401 and +12 V line.
WAVEFORMS
3 5.00 V (IC401, #28)
3
IC401 Pin 28 OSC pulse exists?
Yes No
10
Q402 Gate driving pulse exists? Yes No
Check and replace Q401.
CH1 P-P = 2.00 V CH1 RMS = 5.868 V
10 5.00 V (Q402, Gate)
11
Q402 Drain pulse exists?
Check and replace Q403 and L402.
Yes Done
CH1 P-P = 2.00 V
CH1 RMS = 7.692V
11 50.0 V (Q402, Drain)
5-1-14 ABL Failure
CH1 P-P = 50.0 V CH1 RMS = 73.7V
Input full white pattern to monitor.
IC101 Pin 22 input exists and varies with different patterns? Yes Check CN102. Yes T501 Pin 8 output exists?
No
Check and replace IC101.
No
Check and replace T501.
Yes IC201 Pin 26 output exists and varies with different patterns? Yes Done No Check and replace IC201.
PN15VT/VO PN15HT/HO
5-7
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