Main Pba - Samsung CLP-775ND Series Service Manual

2. Product spec and feature

2.2.5.1. Main PBA

The CLP-775ND 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.
3
4
2
1
21
22
23
24
25
NO Connector
1 DEVE BLDC 12pin
2 OPC BLDC 10pin
3 PTB 14pin
4 FEED Motor 6pin
5 FUSER BLDC 15pin
6 HUMIDITY sensor 8pin
7 DEVE CRUM 7pin
8 HVPS Interface 23pin
9 HVPS Interface 30pin
10 Cover open 2pin
11 OUTBIN Sensor 3pin
2-19
6 7
5
19
18
20
28
26
27
NO
12 FUSER THERMISTOR 6pin
13
14
15
16
17
18
19
20
21
22
11
8 10
9
16
17
31
30
29
Connector
PTL 8pin
FAN Rear 3pin
BASE DIMM
OPTION DIMM
Chorus4 asic
32MB Flash memory
WLAN
LPEC3 ASIC
HOST JACK
USB JACK
Copyright© 1995-2016 SAMSUNG. All rights reserved.
12
13
14
15
33
32
NO Connector
23 NETWORK JACK
24 DC JACK
25 MHV 12pin
26 SCF I/F 18pin
27 HDD SATA 7pin
28 FUER HEAT CTL 6pin
29 HDD PWR 2pin
30 LSU Temp 2pin
31 LSU 32pin/34pin
32 LSU PWR 10pin
33 SMPS 28pin