Board - Sony CBK-HD01 Maintenance Manual

7-7-5. FP-157 Board
Note on removing FP-157 board:
This unit is always energized to retain data, even while the
POWER switch is off. The data is also retained by the
lithium battery on the FP-157 board. For this reason, if the
board is repaired with power supplied, ICs on the board
may be broken. Be sure to remove the lithium battery
before removing the FP-157 board.
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Removing the lithium battery with a screwdriver or a
similar tool may cause short-circuiting. Remove the battery
with a bamboo stick or a similar insulator.
1. Remove the inside panel. (Refer to Section 1-7-3.)
2. Remove the knobs A (two pieces) .
3. Open the switch door (R) , and remove the knobs B
(two pieces) .
Knobs (A)
7-30
4. Remove the LCD harness holder.
5. Disconnect the harnesses from the six connectors
6. Remove the nine screws (PSW2 x 5) , and remove the
Knobs (B)
FP-157 board
SW door (R)
Unfixed parts
7. Reinstall the removed parts by reversing steps 1 to 6 of
(CN700, CN701, CN702, CN703, CN802, CN850) on
the FP-157 board.
FP-157 board.
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After removing the FP-157 board, be careful not to
drop the unfixed parts.
Harness
Harnesses
Harnesses
CN850
CN700 CN701
PSW
2 x 5
removal.
CN702
FP-157 board
Lithium battery
CN802
CN703
PSW2 x 5
LCD
harness holder
Inside panel
PDW-700/V1 (E)