Table of Contents
Advertisement
HCD-SB500W
DECISION TO PASS OR FAIL OF THE OPTICAL
PICK-UP BLOCK
Connection:
DMB07 board
CN901 1 pin
CN901 3 pin
Procedure:
1. Connect an oscilloscope to test point 1 pin and 3 pin of
CN901 on the DMB07 board.
2. Turn the power on.
3. Put the disc (LUV-P01) (Part No.: 4-999-032-01) (CD) in to
playback.
4. Confirm that oscilloscope waveform is clear and check RF
signal level is correct or not.
5. Put the disc (TDV-520CSO) (Part No.: J-2501-236-A) (DVD)
is to playback.
6. Perform confirmation in the same manner as step 4.
Note: A clear RF signal waveform means that the shape "◊" can be clearly
distinguished at the center of the waveform.
RF signal waveform
Checking Location:
– DMB07 Board (Component Side) –
6
oscilloscope
+
–
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
CD: 1.05 ± 0.2 Vp-p
DVD: 1.09 ± 0.2 Vp-p
IC801
IC207
IC701
CN901
7
1
Advertisement
Table of Contents
