Sony CA-570 Maintenance Manual page 29

Operational procedures
1. Set the DISP switch to MENU. The operation menu will be displayed.
3. Rotate the MENU SEL switch to display the Diagnosis page and then press the MENU SEL switch.
4. The menu page is returned to the previous page every time CANCEL button is pressed.
5. To exit from the menu, set the DISP switch to OFF.
Display descriptions
Marks Board Judging Point
1
MD-119 Y RF output
Color-difference
RF output
2
AU-251 +7.8 V (AU-251)
AU-237/237P IC452 (AU-237/237P) . The serial data is correctly received/transmitted from IC452 on
3
TR-109 RF output (TP4)
* : Only when no video signal is input to the camera adaptor.
m
. When the camera adaptor is not connected to the CCU, the columns 1 through 3 will display "– –".
. Refer to BVP-550/550P/570 maintenance manual for details on descriptions on columns of "OHB/PR"
and "CAM".
CA-570 P1
Suspected Abnormality (when NG is displayed)
. RF carrier levels for Y and R-Y/B-Y are out of specs.
. Improper connection of the board
. Power voltage for the AU-251 board is out of specs.
the AU-237/237P board
. Improper connection of the board (AU-251 or AU-237/237P)
. Carrier level for AUDIO RF is out of specs.
. Improper connection of the board
2-5. Self-Diagnosis
*
2-5 (E)