Electrical Check - Sony HCD-X1V Service Manual

5. CHECKING VERSION INFORMATION
To check the version information, please follow the following
procedure.
Procedure:
1. From the top menu of Remocon Diagnosis Menu, select "4.
Version Information" by pressing the [4] button on the remote
commander. The following screen appears on the on-screen
display.
Version information
Firm(Main): Ver. X.XXXX
Firm(Sub): XX.XX
RISC: XXXXXX
8032: XXXXXX
Audio DSP: XX.XX.XX.XX
SubCPU: Ver.X.XX(XXXX)
[0]Return to Top Menu
2. To return to the top menu of Remocon Diagnosis Menu, press
the [0] on the remote commander.
HCD-X1V
DVD SECTION
RFMON LEVEL CHECK
Connection :
oscilloscope
DMB12 board
CN105 pin 6 (RFMON)
CN105 pin 3 (GND)
Procedure :
1. Connect an oscilloscope to CN105 pin 6 (RFMON) and
CN105 pin 3 (GND) on the DMB12 board.
2. Press the button to turn on the system.
I/1
3. Insert the test disc (DVD-SL (NTSC): HLX-503 (Part No. J-
6090-069-A, CD: YEDS-18 (Part No. 3-702-101-01) and press
the button to playback.
N
4. Confirm that oscilloscope waveform is clear and check
RFMON signal level is correct or not.
Note: A clear RFMON signal waveform means that the shape "◊" can be
clearly distinguished at the center of the waveform.
level:
0.58 ± 1.23 Vp-p
(DVD-SL)
0.57 ± 1.1 Vp-p
(CD)
Connecting Location:
– DMB12 Board (Side A) –
CN105
6
1
IC201
IC101
31 31
SECTION 6

ELECTRICAL CHECK

+
–
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
HCD-X1V