Product spec and feature
Service Manual
2-15
Samsung Electronics
2.4.1 Main PBA
The CLP-770ND system controller consists of a main controller and an engine controller in one-board. The
main controller uses a ARMS core chip as main processors, which are dedicated for printing several internal
operating blocks through system programs stored in Flash Memory. The engine controller has an engine
control SoC, which includes motor drivers, PWM drivers, LSU drivers, sensors, high-voltage drivers, and
other driving units for mechanical parts.
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29 30
NO. Connector NO. Connector NO. Connector
1 BLDC DEVE, 12pin 11 FUSER TEERMISTOR, 6pin 21 SCF_HVPS I/F, 13pin
2 BLDC OPC, 10pin 12 PTL, 8pin 22 ETHERNET JACK,3722-002376
3 PTB, 14pin 13 REAR FAN, 3pin 23 USB DEVICE JACK, 3722-002303
4
STEP FEED + REGI CLUTCH, 6pin
14 SMPS TYPE5, 28pin 24 USB HOST JACK, 3722-001051
5 BLDC FUSER, 15pin 15 DUAL BEAM LSU, 25 USB WLAN
6 SENSER TEMP, 8pin 16 LSU TEMP, 2pin 26 SPGPV4
7 DEVE CRUM, 7pin 17 SATA POWER CON., 2pin 27 LPEC3
8 HVPS 18 FUSER HEAT CONTROL, 6pin 28 Flash ROM (32MB)
9 COVER ON/OFF, 2pin 19 SATA I/F 29 DDR2 SOCKET(EXTEND)
10 OUT BIN SENSER, 3pin 20 SCF I/F, 18pin 30 DDR2 SOCKET(BASE)
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