Canon S820MG Service Manual page 174

S750
1. CONNECTOR LOCATIONSAND PIN CONFIGURATIONS
1.1 Logic Board
CN505
CN503 CN501
CN506
CN201 (Carriage flexible cable connector)  J1 : Carriage Board
Pin No. Signal
1~11 HVH
12~15 HVDD
H_ENB0
H_ENB1
H_ENB2
CN202 (Carriage flexible cable connector)  J2 : Carriage board
Pin No. Signal
1~10 H_GND
11~15,18 LOGIC_GND
16,17 VSEN
19 DIA0
20 DIK0
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SW402 SW401
Figure 4-7 Logic Board
IN/OUT Function
OUT Color and black heater driving voltage(19V)
OUT Print head logic power source
OUT Black nozzle heat enable signal
OUT Color nozzle heat enable signal
(Even/odd array's odd block)
Color nozzle heat enable signal
OUT
(Even/odd array's odd block)
IN/OUT Function
... HVH/HVDD GND
... Logic ground
OUT Carriage encoder sensor power source
IN Head temperature sensor's (diode) anode side (black)
... Head temperature sensor's (diode) cathode side (black)
ManualsBooks
SW403
CN502 CN402 CN304
Part 4: Appendix
CN305
J1 Pin No.
Same as
CN201
pin no.s
J2 Pin No.
Same a
CN202
pin no.s