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SHARP QTCD162H
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SHARP QTCD162H Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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This is the second Manual I have ordered from owner-manuals, I give it five stars because it is exactly what I expected given the age of the equipment. So the contents look a bit aged and the pictures a bit grainy, it fulfills my needs and I am glad I can still get hold of them.
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thank u so much for this manual that was so cheap that i thought it was a scam but i gambled anyway because it was too good of a deal to pass up and behold,the manual has everything and details of everything even the screws and im still amazed and very happy with my manual .so take my word and jump on it before they realize how cheap they selling thier manuals..thank you so much for taking time to read my thoughts
 R30 SANSUI Service Manual by Giovanni Bianchi;
I do not have very much to say. The price is quite covenient, delivery was better as promised (about 12 ours, against the specified 24 hours if I remember well), and the quality of the PDF is more than acceptable. The Service Manual of Sansui R30 itself is also satisfactory: good graphic for schematics and layouts, simple and well structured. Giovanni Bianchi
 22DP602 PHILIPS Service Manual by Ms Max;
Happy to find finally a schematic for this amplifier. The schematic is of good quality, the pcb layout is useless: all is black. Never the less, it is very easy to find the components on the board using the schematics.
 DX-3 SHARP Service Manual by Andy Cuffe;
Hard to find manual was ready the next day. Scans were very legible (including schematics). All the essential parts of the service manual were present (adjustment procedure, schematics, and parts list). It would have been nice if the rest of the manual was included (disassembly procedure, theory of operation, etc.).

Text excerpt from page 28 (click to view)
QT-CD141H/161H/162H
• Playback can only be performed when a disc is loaded.

Is the Focus servo active? (Can you hear it working?) No Yes

Check the laser diode driver. Check the area around IC801(16) - (21) (focus servo circuit).

Yes Does the DRF signal change from "L" to "H"? No Yes Yes Is HF waveform normal (see the Fig. 28-1, 2)? Yes Check the tracking system. Waveform is unstable. No
Level is abnormal.

If the disc is not turning, the DRF should not change to "H".

Check the spin system.

Check the periphery of IC801 pins 41 and 42. Yes
w

Check the spin system.

HF 0.1V/DIV 0.5µsec/DIV(DC) IC801 41 (When playing back the disc)

0.5s 1.00 V IC801 16 FD 0.5s 10.0 V IC801 12 CLV+ 0.5s 10.0 V IC801 54 DRF 0.5s 2.00 V IC801 7 TE

Waveform in case of normal playback

2 1 3 4

Figure 28-1 • Check the tracking system.
Check waveform of IC801 pin 7 (TE).

Figure 28-2

The waveform shown in Fig. 28-3 appears, and no-disc state appears soon.

Yes

Tracking servo is inoperative.

Yes

Check the periphery of IC801 pin 8 to pin 15, and IC803 to BI801/CNS801.

Play is possible in TEST mode.

Yes

The unit will be initialzed in Normal mode, but Yes it will not play back.

Normal jump is impeded, and the program top cannot be reached.

Yes

Check the periphery of IC801 pin 14.

Data cannot be read.

Yes
5ms 1.00 V IC801 7 TE

Check the VCO-PLL system.

4

5 ms 5.0 V IC801 54 DRF

3

Figure 28-3 – 28 –

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