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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.
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Great product. Recieved it fast...exactly as advertised.
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Manuals were delivered promptly and were correct as advertised. No issues with the download link which was provided promptly after everything was processed. Very pleasant experience
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Paid for service manual & got the download fast - worth a visit if you need a service manual
TX-NR1000
TROUBLE SHOOTING
No sound
Channel numbers of no sound
1 ch
Check a electronic volume.
Are the voltages of #1, #7 and #8 5V?
Yes
1. Set the unit to "TEST-4-00". 2.Is there a 1kHz sine wave signal on #4? 3.Is the signal outputted from #3?
Yes
1.Is there a 1kHz sine wave signal on #14? 2.Is the signal outputted to Q405*?
Yes
Check a circuit after volume.
Volume FL:Q4040 SBL:Q4045 FR:Q4041 SBR:Q4046 SL:Q4043 C:Q4042 SR:Q4044 SW:4047
No Check a route from a power supply circuit to pins above.
No Replace a electronic volume.
No Replace a electronic volume.
2 ch
Check DAC
Are the voltages of #7 and #8 5V?
Yes
Do pulse signals appear on #2 to #4 when Selector switch is changed? Do the digital data appear on #1, #26, #27 and #28 when the unit is set "TEST-4 00"?
Yes
Check periphery of on the the circuits Q400* and Q401*.
Yes
Replace DAC.
DAC FL/FR:Q4020 SL/SR:Q4023 SBL/SBR:Q4025 C/SW:Q4022
No Check the power supply circuit.
No
Check points:NAAR-8166,NADG-8162 and NADG-8163 PC boards
No Replace a broken part on the periphery of Q400* and Q401*.
2 ch
Check a relay.
Does the transistor for speaker control turns "ON"?
Yes
Replace the speaker relay.
No
Check the speaker relay control signal from a microprocessor.
all ch
The signal from DSP IC is not outputted. Check a broken point by "DEBUG MODE"
Is voltage 1.65V on # of P7404?
No
Does R9331 cut on NAPS-8182?
Yes
Is the attachment of socket P3127 on the front optical terminal PC board right?
Yes
Replace R9331 and P3127.
Yes Check a broken point by "DEBUG MODE"
No
No
TX-NR1000
Replace R9331.
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