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Information
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Featured Product
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- Precaution
- Product Specifications
- Disassembly and Reassembly
- Alignment and Adjustments
- Special Circuit Descriptions
- Troubleshooting
- Exploded Views and Parts List
- Electrical Parts List
- Block Diagrams
- PCB Diagrams
- Wiring Diagram
- Schematic Diagrams
- Disassembly and Reassembly
- Exploded View and Parts List
- Electrical Parts List
- PCB Diagram
- Schematic Diagram
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A good and useful manual. With these, We was abled to isolate and pin point the component that was causing the problem. The total time spent in troubleshooting is very much reduced.
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The quality of the manual is top. The transfer worked perfect and fast.
No problems at all. Recommendable
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Very good service for get any documentation. Fast and perfect quality.
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Excellent service manual with all the necessary info. :)
4-3 CD
4-3-2 To Adjust Tracking Gain (PLAY mode)
1. Connect the GND terminal of the oscilloscope to VR and (+) terminal to TP2. 2. Load and play the disc 3. While the disc is running adjust the gain with NVR1704 as shown below. Normal frequency Low frequency High frequency
---0 V
---0 V
---0 V
TE CENTER FE CENTER E.F BAL F.BIAS
VOLT/DIV : 0.2V TIME/DIV : 2mS
VOLT/DIV : 0.2V TIME/DIV : 2mS
VOLT/DIV : 0.2V TIME/DIV : 2mS
NVR1704 NVR1703 NVR1702
NVR1701
4-3-3 To Adjust Focus Gain (PLAY mode)
1. Connect the GND terminal of the oscilloscope to VR and (+) terminal to TP1. 2. Load and play the disc. 3. While the disc is running adjust the gain with NVR1703 as shown in the following figure. Normal frequency Low frequency High frequency
Vref
---250mV ---100mV ---0 V ---100mV ---0V ---0 V
TP1 TP2
VOLT/DIV : 0.1V TIME/DIV : 2mS
VOLT/DIV : 0.1V TIME/DIV : 2mS
VOLT/DIV : 0.1V TIME/DIV : 2mS
4-3-4 To Adjust E/F Balance (PLAY mode)
1. Set TIME/DIV of the oscilloscope to 2mS. 2. Set Volt/DIV of the oscilloscope to 0.5V. 3. Ground the scope input and set to DC. and then set the DC range. 4. Connect the GND terminal of the oscilloscope to VR and (+) terminal to center to TP2. 5. Load and play the disc. 6. Turn NVR1704 counterclockwise to the minimum value. 7. Raise NVR1702 and adjust the waveform so that its middle comes to GND of the oscilloscope (or until the upper half of waveform becomes symmetrical to the bottom half, A=B) 8. Adjust NVR1704 (arrow) for normal sound.
4-3-1 To Adjust FOCUS BIAS(STOP mode)
1. Set Volt/Div of the oscilloscope to DC 100mV. 2. Ground the scope input and set the waveform to 0V, DC range. 3. Connect the GND terminal of the oscilloscope to VR, and (+) terminal to center of TP1. 4. Set NVR1701 to 0mV.
0V A
B A=B
4-4
Samsung Electronics
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