|
|
|
Who's Online
There currently are 5978 guests online. |
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
I really like this manual and it's reliable.I found and bought easly.thank you.
;
Thank you very much. the Instruction corresponds to my expectations. Sent it in time. I don't regret that paid money.
;
Good quality. Quick service. I recommend to everyone.
;
Very good quality scan of the document. I am very pleased with what I got.
;
PDF Contains
Technical Data, Mechanical data, Detailed Circuit diagram with components value, PCB layout. Actual PCBs Print. Component List, Spare parts code list and Input output detail. It cover LBB1211, LBB1212, LBB1213, LBB1216, LBB1217.
It is the actual Service Manual for SQ10
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
TP (VC)
level: 1.2 ± 0.1 Vp-p
14
|
|
|
> |
|
