Panasonic UF-8300 / UF-8200 / UF-7300 / UF-7200 (serv.man2) Service Manual / Other ▷ View online
21
UF-7300/7200
UF-8300/8200
2.3.
PNL PC Board Block Diagram (Panel PCBs)
The PNL1 PCB consist of Panel Control CPU, Real Time Clock and other peripherals. It has no decision
making functions, which are controlled by Command Signals from the SC PCB.
The PNL2, 3 and 4 consist of LED and Switches, which are controlled by PNL1.
making functions, which are controlled by Command Signals from the SC PCB.
The PNL2, 3 and 4 consist of LED and Switches, which are controlled by PNL1.
SCN1~11
LED3~9, LED1
LED2
LEDDAT, LEDALM,
LEDACT
LEDACT
KIN0~7
CPU(V850)
nWAKUP
nSLPKY
DB[0~7]
LCD Module
PNL2
PNL4
(Back Light)
(SW/LED Board)
KEY:77
LED:9
LED:9
PNL SYSTEM DIAGRAM
RTC
(REAL TIME
CLOCK)
TXD
BZCLK
RXD
A/D
PNL3
DATA
ALARM
ACTIVE
ALARM
ACTIVE
(LED Board)
LED:9
Regulator
3.3V
IC
5V
BATLVL
3.3V
WR
SIO
SCK
RD
5V
22
UF-7300/7200
UF-8300/8200
2.4.
Shutdown / Sleep Mode
Note:
Shutdown / Sleep Modes can be selected in the User Mode.
This function reduces the power consumption in standby mode.
During Shutdown Mode, power is supplied to the Energy Saver Lamp to keep it illuminated, to the circuit
that monitors incoming Ringing signals, and to circuits that maintain Deferred communications only. The
power is recovered only when an incoming Ringing signal is detected, the time to perform a Deferred
communication has lapsed, or the Energy Saver key is pressed.
During Shutdown Mode, power is supplied to the Energy Saver Lamp to keep it illuminated, to the circuit
that monitors incoming Ringing signals, and to circuits that maintain Deferred communications only. The
power is recovered only when an incoming Ringing signal is detected, the time to perform a Deferred
communication has lapsed, or the Energy Saver key is pressed.
During Sleep Mode, power is supplied to the Energy Saver Lamp to keep it illuminated, to the circuit that
monitors incoming Ringing signals, to circuits that maintain Deferred communications, and to the circuit that
monitors incoming PC Print Data only. The power is recovered only when an incoming Ringing signal is
detected, the time to perform a Deferred communication has lapsed, when an incoming print data from a
PC is detected, or the Energy Saver key is pressed.
monitors incoming Ringing signals, to circuits that maintain Deferred communications, and to the circuit that
monitors incoming PC Print Data only. The power is recovered only when an incoming Ringing signal is
detected, the time to perform a Deferred communication has lapsed, when an incoming print data from a
PC is detected, or the Energy Saver key is pressed.
Shutdown Mode
Sleep Mode
2.5.
Option PC Board
• G3B PC Board
2nd G3 Fax Option PC Board.
No.
Item
Recovers from
Shutdown Mode
Remark
1
When Energy Saver key is pressed
Yes
2
Deferred Communication time has lapsed
Yes
3
Ringing Signal detected
Yes
4
Off Hook (External Telephone)
Yes
5
When printing from a PC
No
Includes Internet Fax
6
When an ALARM Status indication is
displayed
displayed
No
7
When an Original is set on the ADF
Yes
No.
Item
Recovers from
Sleep Mode
Remark
1
When Energy Saver key is pressed
Yes
2
Deferred Communication time has lapsed
Yes
3
Ringing Signal detected
Yes
4
Off Hook (External Telephone)
Yes
5
When printing from a PC
Yes
Includes Internet Fax
6
When an ALARM Status indication is
displayed
displayed
No
7
When an Original is set on the ADF
Yes
23
UF-7300/7200
UF-8300/8200
3 Signal Waveform
3.1.
Glossary of Electrical Abbreviations
Glossary of Electrical Abbreviations
Signal Name
Function
+24V
+24 VDC Power Supply
+24VA
+24 VDC Power Supply
+24VIR
+24 VDC Power Supply
+3.3V
+3.3 VDC Power Supply
+5V
+5 VDC Power Supply
+5VA
+5 VDC Power Supply
+5VB
+5 VDC Power Supply
+5VP
+5 VDC Power Supply
+ACT
ACTIVE Lamp LED Power Supply
+ALM
ALARM Lamp LED Power Supply
+DAT
DATA Lamp LED Power Supply
24VGND
Ground
5VGND
Ground
A
Motor Control Signal
AA
Motor Control Signal
ACL
AC Power Supply (Live)
ACN
AC Power Supply (Neutral)
AGND
Ground
B
Motor Control Signal
BB
Motor Control Signal
BZCLK
Buzzer Signal Output
CCLK
Serial I/F Clock
CISCLK
CIS Clock
CLOCK_OP
CLOCK
CXD
Serial Data Command
FANNERR
Fan Error Detection Signal
FANPER
+24VDC Fan Power
FG
Ground
GND
Ground
IICSCL
IIC-Bus Clock
IICSDA
IIC-Bus Data
KIN0
PNL Key Signal (Key Line)
KIN1
PNL Key Signal (Key Line)
KIN2
PNL Key Signal (Key Line)
KIN3
PNL Key Signal (Key Line)
KIN4
PNL Key Signal (Key Line)
KIN5
PNL Key Signal (Key Line)
KIN6
PNL Key Signal (Key Line)
KIN7
PNL Key Signal (Key Line)
L+5V
+5 VDC through Process Interlock SW
L1
Telephone Line Signal
L2
Telephone Line Signal
LDADF DOOR
+1.2 VDC Power Supply
24
UF-7300/8200
UF-8300/8200
LDAPNT
+1.2 VDC Power Supply
LDBPNT
+1.2 VDC Power Supply
LDCCHK
+1.2 VDC Power Supply
LDCCHK-OP
+1.2 VDC Power Supply
LDCPNT
+1.2 VDC Power Supply
LDEXITSEN
+1.2 VDC Power Supply
LDJAMDOOR-OP
+1.2 VDC Power Supply
LDPLPOSISEN
+1.2 VDC Power Supply
LDPNON
+1.2 VDC Power Supply
LDRELSEN
+1.2 VDC Power Supply
LDPNON-OP
+1.2 VDC Power Supply
MGND
Ground
N.C.
No Connection
nA
Motor Control Signal
nADUST
LSU APC timing
nAPNT
ADF Paper Detection Sensor Signal
nB
Motor Control Signal
nBPNT
ADF Read Point Detection signal
nCBSY
Busy Command
nCCHK
Paper Tray detect Signal
nCCHK_OP
2nd Feeder Option Detection Signal
nCCHK-OP
Paper Tray detect Signal
nCHGCTL
HVPS Charge Control (ON/OFF)
nCPNT
ADF Paper Ejection Sensor Signal
nCTONG3B
Ringer Detection Signal
nDB
Developer (+ Voltage PWM Pulse)
nDBCH
Developer Charge (+/- Change)
nEXITSEN
EXIT Sensor Signal
nFCTL
Fuser ON/OFF Control
nHKOFF
External Phone Off-Hook Detection Signal
nHSYNC
Horizontal Synchronization Signal
nIRQG3B
G3B Interrupt Request Signal
nJAMDOR_OP
2nd Feeder Option Detection Signal
nJAMDOR-OP
JAM Cover Sensor detect Signal
nLDON
LD Light Enable
nLED1
PNL LED Control Signal
nLED3
PNL LED Control Signal
nLED4
PNL LED Control Signal
nLED5
PNL LED Control Signal
nLED6
PNL LED Control Signal
nLED7
PNL LED Control Signal
nLED8
PNL LED Control Signal
nLED9
PNL LED Control Signal
nLEDACT
ACTIVE Lamp LED Control Signal
nLEDALM
ALARM Lamp LED Control Signal
nLEDDAT
DATA Lamp LED Control Signal
nLEDDBK
PNL LCD Back Light Control Signal
Glossary of Electrical Abbreviations
Signal Name
Function
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