Sony ZRD-1 Service Manual page 32

Category Code on DCS
Board 121
122
122
- -
122 11
Front view
1 2
5 6
9 0
- -
122 31
3-14 (E)
Code on CAS
_
121- -11
121- -12
121- -13
121- -14
121- -15
121- -21
_
122- -11
- -
14
122- -12
3 4
7 8
!- !=
122- -13
- -
122 34
122- -14
Symptom/Cause/Remedy
Symptom/Cause: The following are the possible abnormalities in the
UC-1 board.
. The block to control a startup/shutdown of the display unit is
defective.
. The block for power supply to the UC-1 board is defective.
. The memory IC (flash) or IC (flash) data is abnormal.
. The setting is not written in the UC-1 board correctly at power-on of
the display unit.
Remedy: Replace the UC-1 board.
Symptom/Cause: The block to control a startup of the display unit is
defective in the UC-1 board.
Remedy: Replace the UC-1 board.
Symptom/Cause: The block to control a shutdown of the display unit
is defective in the UC-1 board.
Remedy: Replace the UC-1 board.
Symptom/Cause: The block for power supply into the UC-1 board is
defective in the UC-1 board.
Remedy: Replace the UC-1 board.
Symptom/Cause: The memory IC (flash) or IC (flash) data is abnor-
mal in the UC-1 board.
Remedy: Replace the UC-1 board.
Symptom/Cause: The setting is not written in the UC-1 board cor-
rectly at power-on of the display unit.
Remedy: Replace the UC-1 board.
Symptom/Cause: Abnormality other than 121-
121- -15 was detected in the UC-1 board.
Remedy: Replace the UC-1 board.
Symptom/Cause: The UP-13 board or cell (1 to 12) is abnormal.
Remedy:
. Replace the UP-13 board.
. Replace the cell.
. Replace the UC-1 board.
Symptom/Cause: The UP-13 board or the power supply of the cell of
1 shown in the figure on the left (in the top line,
and first from the left viewed from the front) is
abnormal.
Remedy:
. Replace the UP-13 board.
. Replace the specified cell.
. Replace the UC-1 board.
Symptom/Cause: The UP-13 board or the power supply of the cell of
2 shown in the figure on the left (in the top line,
and second from the left viewed from the front) is
abnormal.
Remedy:
. Replace the UP-13 board.
. Replace the specified cell.
. Replace the UC-1 board.
Symptom/Cause: The UP-13 board or the power supply of the cell of
3 shown in the figure on the left (in the top line,
and third from the left viewed from the front) is
abnormal.
Remedy:
. Replace the UP-13 board.
. Replace the specified cell.
. Replace the UC-1 board.
Symptom/Cause: The UP-13 board or the power supply of the cell of
4 shown in the figure on the left (in the top line,
and fourth from the left viewed from the front) is
abnormal.
Remedy:
. Replace the UP-13 board.
. Replace the specified cell.
. Replace the UC-1 board.
-11 to
ZRD-1/ZRD-2