Ccd Pcb - Kyocera Mita KM-1530 Service Manual

2AV/X

2-3-3 CCD PCB

The CCD PCB (CCDPCB) is equipped with a CCD sensor IC2 for original scanning.
The CCD sensor IC2 is controlled by the clock signals φ1, φ2, RS, CLP and SHIFT for CCD drive from the main PCB
(MPCB) via logic IC1.
Image signals are analog signals. Even- and odd-numbered pixels are output separately. These analog image signals are
amplified by emitter followers in the transistors TR1 and TR2 and then transmitted to the analog signal processing circuit in
the main PCB (MPCB).
Terminals (CN)
1-1 1-2
1-3 1-4
1-5 1-6
1-7 1-8
1-9 1-10
2-1 2-2
2-3 2-4
2-5 2-6
2-3
2-3-14
CCD PCB
1
2
RS
CCD
CLP
IC2
SHIFT
Odd
Transistor TR2
Even
Transistor TR1
Figure 2-3-7 CCD PCB block diagram
Voltage
0/5 V DC (pulse) CCDPCB clock pulse, input
0/5 V DC (pulse) CCDPCB clock pulse, input
0/5 V DC (pulse) CCDPCB RESET signal, input
0/5 V DC (pulse) CCDPCB CLP signal, input
0/5 V DC (pulse) CCDPCB SHIFT signal, input
CCDPCB image signal (ODD), output
CCDPCB image signal (EVEN), output
12 V DC 12 V DC supply from MPCB, input
1
2
Logic IC1
RS
CLP
SHIFT
Odd
Even
Remarks
Main PCB
Clock signal generator
ASIC
Analog signal
processing circuit