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Service Manual
System Diagram
9-2
DC FAN
SMPS / H VP S
MP SENSOR
MICRO
SWITC H
EX IT SENSOR
P_EM P
SENSOR
FEED SENSOR
LIU B'd
MAIN B'd
+24VS CUT
(LSU,SOL,MOTOR)
1.+24V
2.NC
3.Control
1.HOT
2.Neutral
110Vfor USA
220Vfor EU
AC
IN-LET
&
POWER
SWITCH
F.G
CN1
CN3
1.nP_EM P 2.nP_FEED 3,4.+5V 5,6.GND 7.-5V 8,9,10,11.GND
12.+24V 13,14.+24VS 15.MP _EMPTY 16.THV_PW M 17.THV_EN
18.THV_READ 19.MHV_P W M 20.BIAS_PW M 21,22,23.NC
24.FAN 25.FUSER_ON 26.P_EXIT
CN3
CN2
ExtrnalLINE
TEL LINE
FUSER ASS'Y
/
THER MISTOR
1.HOT
2.Neutral
1.Thermistor1
2.Thermistor2
1.LSU_CLK
2.nLREADY
3.nPMO TO R
4.DGND
5.+24VS
6.nHSYNC
7.+5V
8.DG ND
9.DG ND
10.VDO
11.DGND
CN6
LSU
1.OUT1A
2.OUT1B
3.OUT2A
4.OUT2B
MAIN
MOTOR
CN8
MAIN
CL UTCH
1.Control
2.NC
3.+24VS
CN4
MP
CL UTCH
1.+24VS
2.Control
CN7
PTL
1.+3.3V
2.Control
CN5
DEVE
FUSE
1.Control
2.DGND
CN9
1.SPK+
2.SPK-
CN13
1.CIS_SIG
2.DGND
3.CIS_5V
4.CIS_SI
5.CIS_CLK
6.CIS_LED
7.+24V
CIS
CN14
1.SCANMO T_B 2.SCAN M OT_A
3,4.+24V 5.SCANM OT_NB
6.SCANMOT _NA 7,8,9,10.DGND
11.+5V 12.OPE_RX 13.nOPE_RST
14.OPE_TX
CN15
2468101214
135791113
SCAN
MOTOR
OPE B'd
PARALLEL
USB 1.1
CN10
CN12
1.MOD EM_TX1 2.MODEM_T X2 3.M ODE M_RX
4.DGND 5.REMOT E 6.nEXT_PHONE 7.nRING
8.nHOOK_DE T 9.DGND 10.nCML1 11.nDP
12.HS_TX_CTL 13.HS_VOL _CTL 14.HS_RX_CTL
15.HS_M UTE 16.+5V 17.-5V 18.DGND
CN2
CN1
CN1
1.MIC+
2.RCV+
3.MIC-
4.RCV-
5.nHOO K_DET
6.DGND
HOOK B'd
HOOK
S/W
HANDSE T
2 4 6 8 10 12 14 16 18 20 22 24 26
13579 1113151719212325
2 4 6 8 10 12 14 16 18 20 22 24 26
13579 1113151719212325
6.2 Connection Diagram