Even if the PDF is a scan, I can read the information I need.
The price is affordable and the service (mail sending) is very fast.
Thanks ! Regards. William (Fan of Kenwood)
Excellent just what I needed to replace the electrolytic caps and make this old gem a beauty again. Was as scan of the original photocopied service manual.
Text excerpt from page 15 (click to view)
HCD-DC1
CD SECTION
Note: 1. CD Block is basically constructed to operate without adjustment. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10 M� 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. 5. Check the focus bias check when optical block is replaced. Focus Bias Check
oscilloscope (DC range) CD board TP (RF) TP (VC)
+ �
s
Checking Location: � CD BOARD (Conductor Side) �
IC103 TP (RF)
Procedure : 1. Connect oscilloscope to TP (RF) and TP (VC) on the CD board. 2. Press the I/1 button to turn the power on, and press the Z 3. 4. (CD) button to open the CD disc tray. Put disc (YEDS-18) in and press the u (CD) button to playback. Confirm that oscilloscope waveform is as shown in the figure below. (eye pattern) A good eye pattern means that the diamond shape ( ) in the center of the waveform can be clearly distinguished.
VOLT/DIV: 200 mV TIME/DIV: 500 ns