Carriage Board - Canon BJC-8200 Photo Service Manual

Part 5: REFERENCE

2.2 Carriage Board

JCRB1 (Carriage ribbon cable connector)
Pin No.
1 TH
2 ENCA
3 ENCG
4 ENCB
5 SENSEPOW IN
6~9 HGND
10 EEPRD
11 EEPSK
12 EEPWD
13 CSCR
14 DHE
15 DATACL
16 SOKCL
17 BE3
18 BE0
19 BG
20 DATAK
21 BE2
22 BE1
23 HEKCL
24 HEMLC
25 DATAML
26 DATAC
29 HEADSEN
27,28,30,32 GND
31 HCLK
33 TOMY
40
1
1
36
JHD1
Figure 5-8 Carriage Board
Signal IN/OUT
OUT Thermistor output (to obtain ambient temperature
for scanner)
OUT Encoder phase A output
Encoder GND
OUT Encoder phase B output
5V for encoder
IN 5V to drive head logic
OUT Head EEPROM read data
IN Head EEPROM transfer clock
IN Head EEPROM write data
IN Head EEPROM chip select
IN Dummy heat enable signal
IN/OUT Data signal for CL/Scan-in data bus 1 during
scanning
OUT Status output signal for KCL
IN/OUT Block enable 3/Register write data signal output
during scanning
IN/OUT Block enable 0/Reset signal output during scanning
IN Data latch signal/Scan-in data read trigger during
scanning
IN/OUT Data signal for K/Scan-in data bus 0 during
scanning
IN/OUT Block enable 2/Register enable signal output during
scanning
IN/OUT Block enable 1/Register write clock signal output
during scanning
IN Heat signal for KCL
IN Heat signal for MLC
IN/OUT Data signal for ML/Scan-in data bus 2 during
scanning
IN/OUT Data signal for C/Scan-in data bus 3 during
scanning
OUT Head-detection signal
Logic GND
IN/OUT Transfer clock signal/Transfer clock signal during
scanning
OUT Digital temperature signal for MY
20 20
36
1 1
1
JHD2
Function
5-10
BJC-8200