Lexmark C760 Service Manual
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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 C_THERMISTOR 20 Y_DATA- 21 Ground 22 Y_DATA+ See “System board - non-network” on page 5-6 or “System board - network” on page 5-7 . Connector Pin no. Signal
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 page 5-7 . Connector Pin no. Signal
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 7K_MMLOCK 8 Ground 9K_MMREF 10 N/C See “System board - non-network” on page 5-6 or “System board - network” on page 5-7 . Connector Pin no. Signal
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 Pin no. Signal
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 N/C 7 Ground 8 Ground 9 ITU_I2C_CLK 10 +24V_SWITCHED 11 TPS_LED_ON_OUT 12 TONER_PATCH_OUT 13 N/C 14 BELT_HOLE 2 15 +5V_SWITCHED See “System board - non-network” on page 5-6 or “System board - network” on page 5-7 . Connector Pin no. Signal
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 Autocomp Motor 1 +5 V dc Paper level (switched) 2 +5V_SWITCHED 3 PAPER_OUT_IN 4 AUTOCOMP_ENC 5 PAPER_LOW_IN 6 Ground 7 Ground 8 Ground 9 AUTOCOMP_OUT1 (+24 V dc in standby) 10 AUTOCOMP_OUT2 (+24 V dc in standby) J26 Ethernet port J27 Not Used J28 Cover Open Switch (+24V dc switched) 1 +24V To Cover Open Switch 2 +24V dc Switched See “System board - non-network” on page 5-6 or “System board - network” on page 5-7 . Connector Pin no. Signal
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 dc (Through fuse F8) 5K_DIR_OUT 6 ITU_DIR_OUT 7 +24V_K_AND_ITU (Through fuse F4) 8 +24V_K_AND_ITU (Through fuse F4) 9 Ground 10 Ground 11 K_CLK_OUT 12 ITU_CLK_OUT 13 K_HALL_IN 14 ITU_HALL_IN 15 N/C 16 N/C J31 Fuser Fan 1 FAN1_STALL_IN 2 Ground 3 FAN1_CNTRL 4 +24V_LEFTSIDE 5 Ground See “System board - non-network” on page 5-6 or “System board - network” on page 5-7 . Connector Pin no. Signal
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 F8) 5 M_DIR_OUT 6C_DIR_OUT 7 +24V_M_AND_C (Through fuse F5) 8 +24V_M_AND_C (Through fuse F5) 9 Ground 10 Ground 11 M_CLK_OUT 12 C_CLK_OUT 13 M_HALL_IN 14 C_HALL_IN 15 N/C 16 N/C 17 N/C 18 N/C See “System board - non-network” on page 5-6 or “System board - network” on page 5-7 . Connector Pin no. Signal
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 15 TR AY_SIZE_2 16 TR AY_SIZE_1 17 Ground 18 +3.3 V dc (Through fuse F13) 19 MEM_DATA (I²C Data to Media Size Card) 20 MEM_CLK (I²C Clock to Media Size Card) See “System board - non-network” on page 5-6 or “System board - network” on page 5-7 . Connector Pin no. Signal
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