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Excellent service manual. Complete service info. with schematics, step-by-step instructions and illustrations. Well worth the price!
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Great product, helped me to restore vintage walkman cassette.
Just some pictures could be little bit more sharp and contrast
Thank you
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I love older radio's and the service manuals that are sometimes hard to find. Was able to find a manual quite easily on this site.
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Thank you for your shop manual! Your help was very useful - the device is repaired! Once again - Thank you! I wish you a successful business! Edward (Russia).
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It was a great experience,instead of purchasing a new Stereo Amplifier ,in just minutes i repaired my old one and that was thaks to the manual I have purchased from you.
Thanks again.
Samuel Alter
DV-525
7.1.2 TROUBLE SHOOTING
� No Power ON � FL is not turned ON � FL indication is unusual
START � Blow out fuse of the primary side � Blow out micro-fuse on the POWER SUPPLY Assy. (Check the each voltage.) (KU, KC : P202, P204, P205, P201) (Others : P611, P211, P711) � FL controller IC (IC101) on the FLKY Assy is damaged.
Power ON
Turn on the power again after 2 - 3 minutes. � Check the following connections : POWER SUPPLY Assy - DVDM Assy DVDM Assy - FLKY Assy FLKY Assy - PWSB Assy � Check each voltage (EV+5V, SW+5V, SW+3.3V, +6V and +12V) (If above voltage are not supplied, check the micro-fuse.)
Is FL turn on ? Yes
No
Is the indication of FL normal ? Yes
No
FL indication is dark or flickers.
� Short or open the zenner diode on the POWER SUPPLY Assy. (KU, KC : D207) (Others : D513) � Check the values of R110 - R120 on the FLKY Assy. Refer to the section "7.1.3 ERROR CODE".
Indicates the error message
� Blow out micro-fuse on the POWER SUPPLY Assy. (KU, KC : P201) (Others : P711)
Is tray open ? Yes
No
� Check the connection between PICKUP Assy and DVDM Assy. (14P flexible cable) � Check the +6V power supply voltage (above micro fuse).
Do the video and sound come on ? Yes
No
Check the connection between AVJB Assy and DVDM Assy.
Indicate the error message. OK
Refer to the section "7.1.3 ERROR CODE".
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