Mcu Video Output Check - Sony PCS-G70N Service Manual

4-2-9. MCU Video Output Check

1. Connect the unit's MAIN AUX IN connector and
MCU VIDEO OUT 1 connector with the S video
cable.
2. Refer to Section 4-1-2, and start the Diag mode.
3. Enter the following command from the terminal PC,
and check the response status.
command> cb cenc5 ↓
command> videoin 0 1 ↓
command> vlpc y 135 330 ↓
0xXX
4. Check that the response status "0xXX" is within
specification.
Specification: 0xbf to 0xe5
5. Enter the following command from the terminal PC,
and check the response status.
command> vlpc b 405 330 ↓
0xXX
6. Check that the response status "0xXX" is within
specification.
Specification: 0xc0 to 0xd4
7. Enter the following command from the terminal PC,
and check the response status.
command> vlpc r 405 330 ↓
0xXX
8. Check that the response status "0xXX" is within
specification.
Specification: 0xd4 to 0xe8
9. Change the connection of the S video cable from the
MCU VIDEO OUT 1 connector to the MCU VIDEO
OUT 2 and 3 connectors, and perform the same check
in steps 3 to 8 for each one.
10. Disconnect the S video cable, and connect the unit's
SUB AUX IN and MCU VIDEO OUT 4 connectors.
11. Enter the following command from the terminal PC,
and check the response status.
command> videoin 1 1 ↓
command> videovfp 4 1 ↓
command> vlpc y 135 330 ↓
0xXX
12. Check that the response status "0xXX" is within
specification.
Specification: 0xbf to 0xe5
13. Enter the following command from the terminal PC,
and check the response status.
command> vlpc b 405 330 ↓
0xXX
PCS-G70N/G70NP/G70NP2
PCS-G70S/G70SP
14. Check that the response status "0xXX" is within
specification.
Specification: 0xc0 to 0xd4
15. Enter the following command from the terminal PC,
and check the response status.
command> vlpc r 405 330 ↓
0xXX
16. Check that the response status "0xXX" is within
specification.
Specification: 0xd4 to 0xe8
17. Change the connection of the video cable from the
MCU VIDEO OUT 4 connector to the MCU VIDEO
OUT 5 connector, and perform the same check in steps
11 to 16.
18. After checking, enter the following command from the
terminal PC.
command> videovfp 4 0 ↓
command> cb off ↓
command> videoin 0 1 ↓
command> videoin 1 0 ↓
4-29 (E)