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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.
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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
BE-4140
6. ADJUSTMENT
Perform this adjustment more than 30 minutes after the power is turned on.
7 Equipment used
� � � � � � Spectrum analyzer Oscilloscope Digital voltmeter Video SG Variable resistance attenuator Audio analyzer
BE-4140
DPS Assy
+5V (D) 1 D.GND 6
� FM linear detector � C.W.Signal Generator
Digital Voltmeter
VR1
6.1 DC5V Adjustment
1. Connect the digital voltmeter to CN1004 pin 1 [+5V (D)] and pin 6 [GND (D)] of the DPS ASSY (Connection Diagram 1). +0.02 2. Adjust VR1 of the POWER unit, set to 5.00V - 0.01V
CN1004
POWER Unit
Connection Diagram 1
6.2 Adjustment of DPS ASSY (Video SCR ASSY)
� If deviation of the time axis occurs on the oscilloscope screen, or to move the screen to have a better view, perform fine adjustment using a delay. However do not change the ranges of the vertical and horizontal axes. � When reading the waveform on the oscilloscope screen, read the center of the waveform noise. � If the signal waveform on the oscilloscope is difficult to read, adjust the luminance.
DPS ASSY
VIDEO IN CN3001 (J1001)
VR1004 (RV1004) VIDEO OUT CN3002 (J1002) VR1003 (RV1003) IC1021 IC1020
6.2.1 Adjustment of video output pedestal potential
1. Connect the equipment as shown by the dotted lines in Connection Diagram 2. 2. Set the equipment as shown below. a. Oscilloscope 0.1V/div (DC mode) 5µs/div H-SYNC TRG. b. Video SG Staircase signal (1 Vp-p/75�) 3. Set the oscilloscope to the GND mode, and adjust the oscilloscope so that the luminance line is at the center of the oscilloscope. 4. Connect the equipment to the CN3002 (J1002) of the DPS ASSY using a tool as shown by the lines in Connection Diagram 2. 5. Set the unit to the STANDBY mode. The other functions can be set as desired. 6. Set the oscilloscope to the DC mode, and adjust VR1004 (RV1004) in the DPS ASSY so that the pedestal potential of the video waveform satisfies the GND potential set at step 3 (within 0±0.02V).
VIDEO SG
FL1002 IC1016
VR1001 (RV1001) CN1007
Fig.1 Adjustment Locations
BE-4140 Video in DPS ASSY CN3001 (VIDEO SCR ASSY) (J1001) VR1004 (RV1004)
Video out CN3002 (J1002)
OSILLOSCOPE
Staircase signal 1Vp-p/75�
Terminated at 75�
Connection Diagram 2
47
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