Lexmark C760 Service Manual

Connector locations5-9
  5060-4xx
J7 Yellow Printhead Mirror Motor 1 FUSE24V 2 Ground
3 Ground
4 +5 V dc (through fuse F12)
5 Y MMSTART
6 Y HSYN-SOS
7 Y MMLOCK
8 Ground
9 Y MMREF
10 N/C
J8 Yellow and Cyan Video to 
Printheads 1C_DATA+
2 Ground
3C_DATA-
4 Y_THERMISTOR
5 Ground
6Y_LENA
7 +5 V dc (through fuse F12 and safety switches at 
J10)
8 Ground
9C_LPWM
10 Y_LADJ
11 Ground
12 Ground
13 C_LADJ
14 Y_LPWM
15 Ground
16 +5 V dc (through fuse F12 and safety switches at  J10)
17 C_LENA
18 Ground
19...

5-10Service Manual
5060-4
xx   
J9 Printhead - Cyan Mirror Motor 1 FUSE24V 2 Ground
3 Ground
4 +5 V dc (through fuse F12)
5C_MMSTART
6C_HSYN_SOS
7C_MMLOCK
8 Ground
9C_MMREF
10 N/C
J10 Cover Open Switch 1 +5 V dc (direct from low voltage power supply)
2 Ground
3 VDO_ERR (+5 V dc to J8 and J12)
J11 Printhead - Magenta Mirror Motor 1 FUSE24V
2 Ground
3 Ground
4V_V5FUSE
5 M_MMSTART
6 M_HSYN-S0S
7 M_MMLOCK
8 Ground
9 M_MMREF
10 N/C
See “System board - non-network” on page 5-6  or “System board - network” on...

Connector locations5-11
  5060-4xx
J12 Printhead - Black/Magenta Video 1 K_DATA+ 2 Ground
3K_DATA-
4 M_THERMISTOR
5 Ground
6M_LENA
7 +5 V dc (through fuse F12 and safety switches at J10)
8 Ground
9K_LPWM
10 M_LADJ
11 Ground
12 Ground
13 K_LADJ
14 M_LPWM
15 Ground
16 +5 V dc (through fuse F12 and safety switches at  J10)
17 K_LENA
18 Ground
19 K_THERMISTOR
20 M_DATA-
21 Ground
22 M_DATA+
J13 Printhead - Black Mirror Motor 1 FUSE24V
2 Ground
3 Ground
4 +5 V dc (through fuse F12)
5K_MMSTART
6 K_HSYN-SOS...

5-12Service Manual
5060-4
xx   
J14 Developer HVPS 1 -CART_METER_K_IN 2 K_AC_BIAS_ENABLE (active low)
3 SC_K_CHIP
4N/C
5 K_DEV_PWM_OUT
6 -CART_METER_M_IN
7 K_CHARGE_PWM_OUT
8 CMY_CHARGE_PWM_OUT
9 SC_M_CHIP
10 N/C
11 -CART_METER_C_IN
12 CMY_AC_BIAS_ENABLE (active low)
13 SC_C_CHIP
14 N/C
15 M_DEV_PWM_OUT
16 -CART_METER_Y_IN
17 C_DEV_PWM_OUT
18 Y_DEV_PWM_OUT
19 SC_Y_CHIP
20 N/C
21 Ground
22 +24V_SWITCHED
23 N/C
24 N/C
See “System board - non-network” on page 5-6  or “System board - network” on page 5-7 ....

Connector locations5-13
  5060-4xx
J15 Transfer HVPS 1 ITU_TX_ENA_OUT (active low) 2 ITU_TX_CUR_PWM_OUT
3 ITU_SERVO_IN
4 ITU_TX_PWM_OUT
5 CMY_TX_ENA_OUT (active low)
6 K_SERVO_IN
7 K_TX_PWM_OUT
8 C_SERVO_IN
9 C_TX_PWM_OUT
10 M_SERVO_IN
11 Y_TX_PWM_OUT
12 Y_SERVO_IN
13 M_TX_PWM_OUT
14 Ground
15 +24V_SWITCHED
16 N/C
J16 Option DRAM Socket
J17 Not Used
J 1 8 Pa ra ll e l Po r t
J19 Not Used
J20 ITU/TPS Autoconnect 1 N/C
2 ITU_I2C_DATA
3 +3.3V dc (Through fuse F13)
4 TPS_GAIN_OUT
5ITU_TEMP
6 BELT_HOLE 1...

5-14Service Manual
5060-4
xx   
J21 S2/Narrow Media/Prism/
MPF Sensor 1 Ground
2 +5V dc S2 (switched)
3 NARROW_MEDIA_IN
4 PAPERPATH_S2_IN
5 +5 V dc NM (switched)
6 Ground
7 Ground
8 +5 V dc PRISM (switched)
9 PRISM_SENSOR_IN
10 PRISM_LED_VOLT
11 Ground
12 +5 V dc MPF (switched)
13 MPF_FEED_OUT_IN
14 N/C
J22 INA Card Socket
J23 Registration (staging) Motor 1 +5V_SWITCHED 2 STAGING_ENC
3 Ground
4N/C
5 STAGING_OUT_2 (+24 V dc in standby)
6 STAGING_OUT_1(+24 V dc in standby)
J24 Optional hard disk drive
J25...

Connector locations5-15
  5060-4xx
J29 Fuser Stepper Motor/
Yellow BLDC Motor 1Y_ON_OUT
2 FUSER_ON_OUT (Fuser current I0)
3 +5V dc (Through fuse F8)
4 +5V dc (Through fuse F8)
5Y_DIR_OUT
6 FUSER_DIR_OUT (Fuser phase B)
7 +24V _Y_AND_FUSER (Through fuse F3)
8 +24V_Y_AND_FUSER (Through fuse F3)
9 Ground
10 Ground
11 Y_CLK_OUT
12 FUSER_CLK_OUT (Fuser Phase A)
13 Y_HALL_IN
14 FUSER_HALL_IN (Fuser Current I1)
15 N/C
16 Ground
J30 ITU/Black BLDC Motors 1 K_ON_OUT
2ITU_ON_OUT
3 +5V dc (Through fuse F8)
4 +5V...

5-16Service Manual
5060-4
xx   
J32 VTB Fan 1 FAN2_STALL_IN 2 Ground
3 VTB_FAN_OUT (Fan 2 control)
4 +24V_LEFTSIDE
J33 Fuser Interface 1 EXIT_SENSOR_IN
2 FU SER _CAM_1_IN
3 Ground
4 OILER_ENC_A_IN
5 OILER_ENC_B_IN
6 HR_THERM_IN (hot roll thermistor)
7 BR_THERM_IN (backup roll thermistor)
8 Ground
9 +5V_SWITCHED
10 ZERO_XING_IN
11 HR_HEAT_ON_OUT (hot roll control)
12 BR_THERM_ON_OUT (backup roll control)
J34 Magenta/Cyan BLDC Motors 1 M_ON_OUT
2C_ON_OUT
3 +5V dc (Through fuse F8)
4 +5V dc (Through fuse...

Connector locations5-17
  5060-4xx
J35 Low Voltage Power Supply 1 +3.3 V dc 2 +3.3 V dc
3 +5 V dc
4 +5 V dc
5 +24V dc
6 +24V dc
7 +24V dc
8 +3.3 V dc Sense
9 Ground
10 Ground
11 Ground
12 Ground
13 Ground
14 Ground
15 Ground
16 Ground
J37 Bottom Options Connector
Waste Toner Full
Media Size 1 Printer TXD
2 Ground
3 Ground
4 Printer RXD
5 +24V_OPTIONS (Through fuse F11)
6 Ground
7 +5V_OPTIONS (Through fuse F9)
8 Staging Encoder
9 ITU_CLNR_FULL
10 N/C
11 Ground
12 WASTE_BTL_PRES
13 TR AY_SIZE_3
14 Ground...

5-18Service Manual
5060-4
xx   
Autoconnect—top
JT25 - Diagnostic port 1 Ground
2 Printer RXD
3 Printer TXD
4 +5V dc (Through fuse F8)
Connector Pin no Color Signal
CN1 Autoconnect—top 1 White +24 V dc 2 Black Ground
3 Yellow Printer RXD
4 Black Ground
5N/A NC
6 Red +5 V dc
7 Black Ground
8 Blue Printer TXD
See “System board - non-network” on page 5-6  or “System board - network” on page 5-7 .
Connector Pin no. Signal