DOWNLOAD Sony AVD-C70ES (serv.man3) Service Manual ↓ Size: 42.64 KB | Pages: 1 in PDF or view online for FREE

Model
AVD-C70ES (serv.man3)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
42.64 KB
Type
PDF
Document
Service Manual
Brand
Device
DVD / SUPPLEMENT-2
File
avd-c70es-sm3.pdf
Date
PREV: Sony AVD-C70ES (serv.man2) Service Manual

Sony AVD-C70ES (serv.man3) Service Manual ▷ View online

1
US Model
Canadian Model
SERVICE MANUAL
Ver 1.3  2004. 09
SUPPLEMENT-2
File this supplement with the service manual.
Subject : Addition of Electrical Adjustments.
AVD-C70ES
9-874-155-82
Procedure:
1. Connect an oscilloscope to test point 1 pin and 3 pin of CN901
on the DVD board.
2. Turn the power on.
3. Put the disc (LUV-P01) (Part No.: 4-999-032-01) (CD) in to
playback.
4. Confirm that oscilloscope waveform is clear and check RF
signal level is correct or not.
5. Put the disc (TDV-520CSO) (Part No.: J-2501-236-A) (DVD)
in to playback.
6. Perform Comfirmation in the same manner as step 4.
Note:
A clear RF signal waveform means that the shape “
◊” can be clearly
distinguished at the center of the waveform.
– DVD BOARD (SIDE A) –
CN301
1
7
Checking Location:
ELECTRICAL ADJUSTMENTS
Note:
1. VIDEO board is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. Use DVD reference disc unless othermise indicated.
[DVD reference disc]
LUV-P01 (CD)
: PART No. 4-999-032-01
TDV-520CSO (DVD-SL) : PART No. J-2501-236-A
TDV-540C (DVD-DL)
: PART No. J-2501-235-A
Note:
 Do not use exiting test disc for DVD.
3. Use an oscilloscope with more than 10 M
Ω impedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specified value with the following checks.
1. AUTO SERVO ADJUSTMENT
After parts related to the servo circuit (RF amplifier (IC001), DSP
(IC1025), motor driver (IC1024), EEPROM (IC1028) so on) are
replaced, re-adjusting the servo circuit is necessary. Select “ALL”
at “1. DRIVE AUTO ADJUSTMENT” (Refer to service manual
page 16 in TEST MODE) and adjust DVD-SL (single layer), CD
and DVD-DL (dual layer).
2. DECISION TO PASS OR FAIL OF THE OPTICAL
PICK-UP BLOCK
Connection:
oscilloscope
+
DVD board
CN301 pin 1
–
CN301 pin 3
CD : 1.05 
±
 0.2 Vp-p
VOLT/DIV : 200 mV 
TIME/DIV : 500 nS
DVD : 1.09 
±
 0.2 Vp-p
RF signal waveform
Display

Sony AVD-C70ES (serv.man3) Service Manual ▷ Download

  • DOWNLOAD Sony AVD-C70ES (serv.man3) Service Manual ↓ Size: 42.64 KB | Pages: 1 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony AVD-C70ES (serv.man3) in PDF for free, which will help you to disassemble, recover, fix and repair Sony AVD-C70ES (serv.man3) DVD. Information contained in Sony AVD-C70ES (serv.man3) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.

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AVD-C70ES Service Manual 114 13.78 MB
AVD-C70ES (serv.man2) SUPPLEMENT-1 Service Manual 7 234.25 KB

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