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The manual for the Sansui P-L75 was not one of the more informative turntable manuals around but for $5 it was helpful enough.
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VERY GOOD SERVICE.FAST ANS VERY HONEST PRICE .RHAANK HERNAN
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Thanks to this service manual I repaired my old camcorder! The manual perfectly explains how to disassemble the camcorder step by step.
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This manual is very useful because it presents the technical specifications of the cd player, including the manufacturer of the reader, this helps if you need to replace it. It also displays the settings and layout of the circuit.
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Manual was a good representation of service infomation for the EWV404. It worked well for my repair.
ELECTRICAL ADJUSTMENTS
2-3: RF AGC DELAY (MONITOR TUNER) 1. Receive the UHF (80dB). 2. Connect the digital voltmeter between the pin 5 of CP603 and the pin 1 (GND) of CP603. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (5) on the remote control to select "OTHERS". The Fig. 2-2 appears on the display. 4. Press the channel button (1) on the remote control to select "RF AGC DELAY". 5. Press the PLAY or STOP button on the remote control until the digital voltmeter is 1.6 ± 0.1V. (REC TUNER) 1. Receive the UHF (80dB). 2. Connect the digital voltmeter between the pin 7 of CP603 and the pin 1 (GND) of CP603. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (5) on the remote control to select "OTHERS". The Fig. 2-2 appears on the display. 4. Press the channel button (7) on the remote control to select "REC AGC DELAY". 5. Press the PLAY or STOP button on the remote control until the digital voltmeter is 1.6 ± 0.1V. 2-6: WHITE BALANCE NOTE: Adjust after performing CUT OFF adjustment. 1. Place the set with Aging Test for more than 15 minutes. 2. Receive the white 100% signal from the Pattern Generator. 3. Using the remote control, set the brightness and contrast to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (2) on the remote control to select "AKB". The Fig. 2-3 appears on the display. 5. Press the channel button (2) on the remote control to select the "R.BIAS". 6. Using the PLAY or STOP button on the remote control, adjust the R.BIAS. 7. Press the CH. UP/DOWN button on the remote control to select the "G.BIAS", "B.BIAS", "R.DRIVE" or "B.DRIVE". 8. Using the PLAY or STOP button on the remote control, adjust the G.BIAS, B.BIAS, R.DRIVE or B.DRIVE. 9. Perform the above adjustments 7 and 8 until the white color is looked like a white. 1. 2. R.BIAS 3. G.BIAS 4. B.BIAS 5. R.DRIVE 6. 7. B.DRIVE 8. 0. RETURN Fig. 2-3
(TV SECTION)
2-4: CONSTANT VOLTAGE 1. Using the remote control, set the brightness and contrast to normal position. 2. Connect the digital voltmeter to TP401. 3. Set condition is AV MODE without signal. 4. Adjust the VR502 until the digital voltmeter is 135 ± 0.5V. 2-5: CUT OFF 1. Place the set with Aging Test for more than 15 minutes. 2. Set condition is AV MODE without signal. 3. Using the remote control, set the brightness and contrast to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (5) on the remote control to select "OTHERS". The Fig. 2-2 appears on the display. 5. Press the channel button (5) on the remote control to select "CUT OFF". 6. Adjust the Screen Volume until a dim raster is obtained.
2-7: FOCUS 1. Receive a broadcast. 2. Turn the Focus Volume fully counterclockwise once. 3. Adjust the Focus Volume until picture is distinct. 2-8: HORIZONTAL POSITION 1. Receive the center cross signal from the Pattern Generator. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (1) on the remote control to select "H/V". The Fig. 2-4 appears on the display. 4. Press the channel button (1) on the remote control to select "H. POSI 50/60". 5. Press the PLAY or STOP button on the remote control until the vertical line becomes fit to the notch of the shadow mask. 6. Receive the center cross signal of NTSC. (Audio Video Input) 7. Press the AV button on the remote control to set to the AV mode. Then perform the above adjustments 2~5.
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