Read Panasonic WV-CS950 / WV-CS954E Service Manual online
Communication Board:
There are several input signals to the camera such as RS485 signal, 4 alarm
input signals and Dip switch setting data. And there is a Line pulse signal from
the power board.
Also there are output signals from the camera such as Video output signal,
RS485 signal and 2 alarm output singals.
The above these signals pass the Communication Board.
The Communication Board is a kind of interface board between inside and
outside camera.
1. Singal flow of input signals
The RS485 signal is supplied to CN2, pin12,pin13. They enter to pin11,pin12
of IC7 (RS485 Converter). The RS485 is output from pin1 of IC7, then enters
to Pin22 of IC14 (CPU).
The 4 alarm input signals are supplied to CN3, pin5-9. Then these signals
enter to IC14 (CPU).
The Dip switch setting data is supplied to CN2,pin1-pin8. These signals enter
to IC14. The 4 alarm input signals, the Dip switch setting data and RS485
signal are mixed at IC7. The mixed signal is output from pin28, IC7 (CAM TxD)
and is supplied to pin5, IC7.
The Line Pulse (LP) signal is supplied to CN5,pin3 from the power board.
The LP signal is supplied to pin1, IC7 and is mixed with CAM TxD signal..
The mixed signal is output from pin3 of IC7 and is supplied to pin6 of
IC19.(Buffer) The buffered signal is output from pin7 of IC19 and is supplied
to CN7, pin3. Then this signal is transferred to CN3,pin1 on the Servo Board
through the Slip Ring.
2. Signal flow of output signals
From pin14 of CN1 on the Servo Board, the RS485TxD signal enters to pin8
of IC18. The RS485TxD signal is output from pin of IC18 named as DOUT
then enters to the Slip Ring via CN3, pin2.
.After transmitting the Slip Ring, DOUT signal is appeared at CN7, pin4 on the
Communication Board then enters to the IC14,pin29 (CPU).
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