Panasonic UF-590 / UF-790 Service Manual ▷ View online
53
3.5.
Glossary of Electrical Abbreviations
Glossary of Electrical Abbreviations
Signal Name
Description
+24V
+24 VDC Power Supply
+24VD
+24 VDC Power Supply
+24VM
+24 VDC Power Supply (Motors)
+3.3V
+3.3 VDC Power Supply
+5V
+5 VDC Power Supply
+5VP
+5 VDC Pilot Power Supply (Sleep Mode)
-5V
-5 VDC Power Supply
A1
Address Signal
A2
Address Signal
A3
Address Signal
A4
Address Signal
A5
Address Signal
A6
Address Signal
A7
Address Signal
A8
Address Signal
A9
Address Signal
A10
Address Signal
A11
Address Signal
A12
Address Signal
A13
Address Signal
A14
Address Signal
A15
Address Signal
A16
Address Signal
A17
Address Signal
A18
Address Signal
A19
Address Signal
A20
Address Signal
A21
Address Signal
A22
Address Signal
AGND
Ground
Black (L)
AC Power Supply
BUSY
Peripheral Busy
(Peripheral
(Peripheral
→
Host)
Charge
Charge Current: 200
µ
A (AC 300 Hz Sine Wave)
& DC Charge Voltage
D0
Data Signal
D1
Data Signal
D2
Data Signal
D3
Data Signal
D4
Data Signal
D5
Data Signal
D6
Data Signal
D7
Data Signal
D8
Data Signal
54
D9
Data Signal
D10
Data Signal
D11
Data Signal
D12
Data Signal
D13
Data Signal
D14
Data Signal
D15
Data Signal
DATA0
Data Signal
DATA1
Data Signal
DATA2
Data Signal
DATA3
Data Signal
DATA4
Data Signal
DATA5
Data Signal
DATA6
Data Signal
DATA7
Data Signal
DB0
Data Signal
DB1
Data Signal
DB2
Data Signal
DB3
Data Signal
DB4
Data Signal
DB5
Data Signal
DB6
Data Signal
DB7
Data Signal
Development
Development Voltage (AC 1.65 kHz Square Wave)
& DC Voltage
& DC Voltage
DOS
Output Signal
E
Data Read/Write Enable Signal
FCK1
Shift Register Clock
FCK2
Shift Register Clock
FG
Ground
FR
Reset Signal
FSG
Data Transfer Enable Signal
GLED
GND for LED
GND
Ground
HLIN1
Line Signal for the Fax Handset
HLIN2
Line Signal for the Fax Handset
ID0
Flash Memory Card ID
ID1
Flash Memory Card ID
ID2
Flash Memory Card ID
L+5V
Laser Circuit +5 VDC Power Supply
L1 (R)
Line Signal
L2 (T)
Line Signal
LDRE
Timing Sensor and No Cassette Sensor LED Drive
Current
Current
LDSC1
No Cassette Sensor LED Drive Current
LDSP1
No Paper Sensor LED Drive Current
Glossary of Electrical Abbreviations
Signal Name
Description
55
MGND
Ground
MIC (-)
Handset Microphone
MIC (+)
Handset Microphone
MMnA
Motor Drive Signal
MMnB
Motor Drive Signal
MMpA
Motor Drive Signal
MMpB
Motor Drive Signal
MTnA
Stepping Signal
MTnB
Stepping Signal
MTpA
Stepping Signal
MTpB
Stepping Signal
nACK
Peripheral Clock / Data Transfer Acknowledge
(Peripheral
(Peripheral
→
Host)
nADF1
Paper Feed Roller Solenoid Control Signal
nADF2
Paper Feed Roller Solenoid Control Signal
nAUTOFD
Host Busy
(Host
(Host
→
Peripheral)
nBPNT
Read Point Detection Signal
nCCHK1
No Cassette Detection Signal
nCCHK2
No Cassette Detection Signal (2nd Cassette)
nCD
Flash Memory Card Detection Signal
nCE1
+5 VDC Power Supply
nCE2
Low Enable
nCR1
Charge Control DC Output
nCRCK
Charge Control DC Output
nDRCK
Development +AC Clock
nESEN
Paper Exit Signal
nFAULT
Data Available / Error Condition
(Peripheral
(Peripheral
→
Host)
nFAULT
Fan Ready Signal
nHSYNC
Horizontal Synchronous Signal
nINIT
Reserve Request / Initialize
(Host
(Host
→
Peripheral)
nLDON
Laser Control
nLEDON
LED Enable Signal
nMB4
Flash Memory Size
nMPOFF
Energy Saver Mode Control Signal
nOE
Read Signal - Low Enable
nOP
2nd Feeder Unit Detection Signal
nPCHK1
No Paper Sensor Detection Signal
nPCHK2
No Paper Detection Signal (2nd Cassette)
nPMCK
Tetragon Motor Clock
nPMON
Tetragon Motor Control Signal
nPMRY
Tetragon Motor Ready Signal
nPWSAVE
Energy Saver Mode Transport Signal
nRSEN
Timing Sensor Detection Signal
Glossary of Electrical Abbreviations
Signal Name
Description
56
nSELIN
IEEE1284 Active
(Host
(Host
→
Peripheral)
nSSR
Fuser Lamp Control Signal
nSTAMPON
Stamp Control Signal
nSTB
Host Clock / Data Transfer Strobe
(Host
(Host
→
Peripheral)
nS/H
Sample Hold Signal
nTR0
Transfer Control Cleaning Output
nVIDEO
Laser Control
nWEH
Write H Signal - Low Enable
nWEL
Write L Signal - Low Enable
OS
Output Signal
pADF2
Feed Roller Drive Clutch Control Signal (2nd Cassette)
pBZCLK
Buzzer Signal
pPNLRD
Reception Signal
pPNLRST
Panel Reset Signal
pPNLSD
Transmission Signal
pCMLD
Line Switching Relay Drive Signal
pCTON
Ring Detection Signal
PE
Acknowledge Data Request / Paper Empty Condition
(Peripheral
(Peripheral
→
Host)
pHKOF
External Phone Off-Hook Detection Signal
PLH
+5V Pull Up
pSPKOT
Line Signal, Key Tone, Ringer
R/W
Data Read/Write Select Signal
RCV (-)
Handset Receiver
RCV (+)
Handset Receiver
RDY / nBSY
Not Used
RS
Register Select Signal
RSV
Not Used
SELECT
Select Signal
(Peripheral
(Peripheral
→
Host)
SNCMN
+2 VDC Power Supply
TGND
Ground
TH1
Thermistor Output Signal
TH2
Thermistor Output Signal
TONER
Remaining Toner Level Signal
Transfer
Transfer Current: (+3
µ
A) & Cleaning Voltage: (-1500 V)
V5
+5 VDC Power Supply
nWAKUP
Energy Saver Mode Enable
White (N)
AC Power Supply
Glossary of Electrical Abbreviations
Signal Name
Description
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