UX-B800GR

UX-B800GR

CONTROL PWB UNIT

FLASH MEMORY SPI

16MBIT CIS AFE
CIS UNIT
[1] Block diagram

CX20556-11
DATA MEMORY SPI
16MBIT
12MHZ 32.768kHZ
CHAPTER 4. DIAGRAMS

FAX ENGINE FAX MODEM

LIU PWB UNIT LCD UNIT PRINTER UNIT
CX93310 CX20452
(LEXMARK)
OPERATION
PANEL UNIT
101MHZ FRSNS
216PIN-QFP ORGSNS
SOFT-MODEM DOORSNS
HEAD
25MHZ UNIT

ENC

4–1
ETHERNET LAN SDRAM
CONTROLLER 64MBIT
LAN91C113

MOTOR DRIVER,
VOLTAGE REGULATOR
14D0830 +30V CARRIER
POWER SUPPLY PWB UNIT
+5V MOTOR
Service Manual

FEED
MOTOR

TX
MOTOR
 HANDSET

CNHJ
[2] Wiring diagram

AC CORD

CN1
LIU PWB UNIT POWER SUPPLY PWB UNIT
TEL LINE CNLNJ

EXTERNAL CNTLJ
LINE CNLIU CNPW

14 8

2 CNLAN CNLIU CNPW 14

SPEAKER CNSP CNPRT1 HEAD UNIT
INK CARTRIDGE/
CARRIER ENCODER
CNPRT2
14

4–2
CONTROL PWB UNIT 2
CNCRMT CARRIER
MOTOR
2
CNFDMT
CNCIS
CNSCANMT
FEED
CNENC
MOTOR
CNPN
7
19
4
TX
MOTOR
CNPN 4
ENCODER
CIS UNIT POS(FEED)

OPERATION
PANEL PWB UNIT
14
CNLCD
LCD UNIT
UX-B800GR
UX-B800GR
[3] Point-to-point diagram

CIS CNCIS CONTROL LIU PWB UNIT

AO 1 1 AO PWB UNIT CNLIU CNLIU
GND 2 2 GND +24V 1 1 +24V
VDD 3 3 VDD ADG 2 2 DG
SI 4 4 SI ADG 3 3 DG
CLK 5 5 CLK +5V 4 4 +5V(N.C.)
GLED 6 6 GLED RHS- 5 5 RHS-
VLED 7 7 VLED TELIN 6 6 TELIN
TELMUTE 7 7 TELMUTE
SPEAKER CNSP
RXIN 8 8 RXIN
SP+ 1 1 SP+
TXOUT 9 9 TXOUT
SP- 2 2 SP-
CML 10 10 CML
CNLAN CI- 11 11 CI-
1 TD+ MICMUTE 12 12 MICMUTE
2 TD- TELOUT 13 13 TELOUT
3 RD+ HS- 14 14 HS-(N.C.)
4 CT(RX)
ETHERNET
5 GND CNPRT1 PRINTER UNIT
6 RD- VPH 1 1 VPH
7 CT(TX) VPH 2 2 VPH
8 GND GND 3 3 GND
CHX 4 4 CHX
CNENC CHY 5 5 CHY
CHB 1 1 CHB VCC 6 6 VCC
ENCODER

+5V 2 2 +5V H2_TSR 7 7 H2_TSR

CHA 3 3 CHA FIRE2 8 8 FIRE2
GND 4 4 GND GND 9 9 GND
FIRE1 10 10 FIRE1
GND 11 11 GND
CNPN CNPN PDS1 12 12 PDS1
KEN4A 19 1 KEN4A GND 13 13 GND
KEN3A 18 2 KEN3A PLOAD 14 14 PLOAD
KEN2A 17 3 KEN2A
CNPRT2
KEN1A 16 4 KEN1A
OPERATION PANEL PWB UNIT

ORGSNS 15 5 ORGSNS VPH 1 1 VPH

FRSNS 14 6 FRSNS VPH 2 2 VPH
LCD_E 13 7 LCD_E VPH 3 3 VPH
SEN0 12 8 SEN0 AA_DET 4 4 AA_DET
SEN1 11 9 SEN1 AA_LED 5 5 AA_LED
SEN2 10 10 SEN2 PDS2 6 6 PDS2
SEN3 9 11 SEN3 PHRESET 7 7 PHRESET
SEN4 8 12 SEN4 GND 8 8 GND
SEN5 7 13 SEN5 PCLK 9 9 PCLK
SEN6 6 14 SEN6 GND 10 10 GND
RS 5 15 RS PDS0 11 11 PDS0
+3.3V 4 16 +3.3V GND 12 12 GND
DG 3 17 DG PAS 13 13 PAS
+5V 2 18 +5V ID 14 14 ID
DRSNS 1 19 DOORSNS
CNSCANMT TX MOTOR
CNPW CNPW SCANMT_1 1 1 SCANMT_1
POWER SUPPLY PWB UNIT

+30V 1 1 +30V SCANMT_2 2 2 SCANMT_2

+30V 2 2 +30V SCANMT_3 3 3 SCANMT_3
MG 3 3 MG SCANMT_4 4 4 SCANMT_4
MG 4 4 MG
DG 5 5 DG CNFDMT FEED MOTOR
DG 6 6 DG DC_FD+ 1 1 DC_FD+
+5V 7 7 +5V DC_FD- 2 2 DC_FD-
+5V 8 8 +5V CNCRMT CARRIER MOTOR
DC_CR+ 1 1 DC_CR+
DC_CR- 2 2 DC_CR-

4–3