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Service manual very complete and clear. It was very helpfull for my work.
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This is the 2nd time I download manuals from this website and I can say it's what I was expecting. It contains schematic, layout (decent quality), short description, parts and dissasembly instructions. I recomend it for anyone who wants to repair/modify this device.
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Very useful Service Manual! With it I was able to identify the damaged pots in my old amplifier, purchase the adequate replacements and make myself the repair.
I have again my old amplifier, still a very good one that I will keep for as many years as I can!
Thanks to Owner Manuals!
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Good price for the manual and easy to locate on the site and download. Plus, just like the original. Thanks a lot.
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Genuine Service Manual. Link was available in less then an hour or so. Service Manual contains assembly, PCB layout, complete circuit diagram, Components list etc
CD-423M/423M-S/424M/DPF-J3030/J5030
ADJUSTMENT
No. ITEM INPUT SETTING OUTPUT SETTING PLAYER SETTING ALIGNMENT POINT ALIGN FOR FIG. 1. With pressing the REPEAT KEY, turn the power on to enter the test mode. 2. Set the Test disc to Disc NO. 1. 3. Close the door. FOCUS ERROR BIAS Test disc Type4 /KTD-02 Connect an oscilloscope as follows. CH1:RF (CN2-1) Connect the DC voltmeter to LASER CURRENT CHECK LAND on X32. Press the PLAY /PAUSE key . Confirm that the display is "05". Press the PLAY /PAUSE key to check that the display is 03 or 05. FE BIAS VR1 Optimum eye pattern
1
(d)
2
LASER CURRENT CHECK
Test disc Type4
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0.5±0.2V
Note: Type 4 disc :SONY YEDS-18 Test Disc or equivalent. LPF : Around 47k� + 390 pF or so. FIG. (d) ¶ RF signal in test mode (PLAY).
RF signal
¶ Perform the tangential and focusing offset are focused into one point on the display. The crossing points above and below the center shall also be looked clearly. (FE BIAS)
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