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PhotoPC-750Z
3.1.1 The Camera has no power
Refer to the Table 3-2, 3-3, and 3-4, if the LCD is not indicated or red
LED keeps blinking and does not go to the stand-by state when the
rotary switch is turned on after installing the battery or AC adapter.
If 4-bit CPU, which controls User I/F, located under
SY1 board becomes abnormal, the signal necessary to
generate the various digital and analog power source
will not be generated. As the result, the camera goes
to "No Power" state. Also, since this 4-bit CPU
performs serial communication with the main CPU on
the CA2 board, if trouble happens on the CA2 board,
same symptom will appear.
Troubleshooting
Table 3-2. Check points when the camera has no power
No.
Check-Point
Is the user using recommended
1
AC-adapter?
Is SY1 board connected firmly
2
to the connectors on the CA1
and CA2 boards?
When the rotary switch turns
3
ON or OFF, does the switch on
the SY1 board also rotate?
Is connector between ST1 and
4
CA2 board (CN501-CN104)
frimly connected?
Is the connector connection
between CA1 and CA2 board
5
(CN101, 102 and CN902 and
901) firmly connected?
Is there electric continuity
between 2 fuses(PR501 and
6
PR502) on the reverse face of
ST 1 board.
7
Is SY1 board defective?
8
Is ST1 board defective?
9
Is CA2 board defective?
10
Is CA1 board defective?
Overview
Revision A
Solution
Use only recommended adapter
(B86703*). Using other kind of
adapter may charge back the
battery.
Re-install the SY1 board.
Re-install the switch.
Push the bottom of ST1 (4-pin
connector, brown) from the top.
Push in the edge of the flash on
the ST1 board and back side of
CA2 board.
Replace either one of fuses.
Replace SY1 board.
Replace ST1 board.
Replace CA2 board.
Replace CA1 board.
31
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