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Excellent manual, detailed, very useful! Exactly what I needed, I'd recommend it to all who need it. Although images are scanned easily readable and explicit. A valuable tool product at a price more than modest, take it with confidence and you will not regret it!
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Clear and complete service manual. Easy now to restore my old Kenwood KD-1500.
Thanks a lot.
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Thanks for this "hard to find" service manual. This Sony PS212A is a very good turntable that needed to be restored !
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Excellent quality on these manuals. Same as having the original printed manual and incredibly useful when doing a custom install like me. Keep it up on the good work.
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This is an excellent information source. Great quality and tons of info regarding technical service for the Technics SH8065.
D-EJ855 SECTION 4 ELECTRICAL CHECK
The CD section adjustments are done automatically in this set. In case of operation check, confirm that focus bias. Precautions for Check 1. Perform check in the order given. 2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise indicated. 3. Power supply voltage requirement: DC4.5 V in DC IN jack. (J401) VOLUME : Minimum AVLS switch : NORM HOLD switch : OFF G�PROTECTION switch : 1
R604 C606 K A R305 + C404 C449 C301 VDR303 FB101 55
Focus bias Check Condition: � Hold the set in horizontal state. Connection:
oscilloscope (AC range) MAIN board TP601 (RF) TP418 (GND) 2k�
+ �
Connecting and Checking Location: � MAIN Board (Component Side) �
Procedure: 1. Connect the oscilloscope to the test points TP601 (RF) and TP418 (GND) on the MAIN board. 2. Set a disc. (YEDS-18) 3. Press the > N button. 4. Check the oscilloscope waveform is as shown below. A good eye pattern means that the diamond shape (�) in the center of the waveform can be clearly distinguished.
VDR101 C102
RF Signal reference Waveform (Eye Pattern)
TP418 (GND)
J301 LINE OUT (OPTICAL)
VOLT/DIV : 100 mV (With the 10:1 probe in use) TIME/DIV : 500 ns
TP601 (RF)
RF level 0.4 to 0.6 Vp-p
D403
R489
1
R410
VDR304
OPTICAL PICK-UP BLOCK DAX-25E
CN503
VDR301
FB201 VDR201
To watch the eye pattern, set the oscilloscope to AC range and increase the vertical sensitivity of the oscilloscope for easy watching.
R303 R304
C605
12
13
C202
C448
R102
R602 R601 C601 R603 C603
C604
IC404
R469
15
1
24
FB301
5. Stop revolving of the disc motor by pressing the x button.
C452 C453 C454
R101
R202 R201
9
9
 $4.99 DEJ855 SONY
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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