20-35
20.6 Printer/Processor DC Power Supply Unit and Circuit Boards
LED : (R) = Red, (G) = Green, (Y) = Yellow
20.6.2
DC Voltage Check List
Dc Power Supply
Voltage Measuring Circuit Board
Voltage Check Points
Check Points on PWR23 Circuit Board
PS (AlphaII)
Power
Channel
LED on PS
PWR23 Power
Channel
Interlock
PWR23 Fuse
(Rated
Current)
LED on
PWR23
Circuit Board
Power Name
Local Power
(within Circuit
Board)
Fuse (Rated
Current)
LED
+ Terminal
GND Terminal
Voltage Range
+ Terminal
GND Terminal
Voltage Range
1
2A
JFL
D+5V_MC
PD5 (G)
D+5V0_MC
F60 <2A>
PD60 (G)
(PWR23)
–
–
–
–
–
–
–
1
2A
JFL
D+5V_MC
PD5 (G)
D+5V1_MC
F61 <5A>
PD61(G)
CTL23
D+5V
-
-
D7
TP11
TP12 (DGND)
+5 ± 0.25
PWR8-1
PWR8-4
+5.10 ± 0.25
D+5Va
F112 <2A>
D13
TP26
TP12 (DGND)
+5 ± 0.25
D+5Vb
F113 <2A>
D12
TP25
TP12 (DGND)
+5 ± 0.25
D+3.3V
D9
TP21
TP12 (DGND)
+3.3 ± 0.165
D+1.5V
TP22
TP12 (DGND)
+1.5 ± 0.075
A+5V
–
D14
TP27
TP28 (AG)
+5 ± 0.25
A+5Va
D34
TP39
TP28 (AG)
+5 ± 0.25
A+5V2
D15
TP30
TP31 (AG2)
+5 ± 0.25
A-5V2
D16
TP33
TP31 (AG2)
-4.75 ± 0.25
D+5V2_MC
F62 <5A>
PD62 (G)
D+5V2
–
F111 <2A>
D11
TP23
TP24 (DGND2)
+5 ± 0.25
PWR8-13
PWR8-16
+5.10 ± 0.25
1
2A
JFL
D+5V_MC
PD5 (G)
D+5V2_MC
F62 <5A>
PD62 (G)
PDA23
D+5V2
–
D1
TP1
TP2
+5 ± 0.25V
PWR8-3
PWR8-6
+5.10 ± 0.25
P+5V
–
D4
TP10
T11
+5 ± 0.25V
D+3.3V
D3
TP8
TP2
+3.3 ± 0.12V
1
2B
JFL
+24V0
PD6 (G)
+24V01
F63 <4A>
PD63 (G)
+24V01
–
D5
TP20
TP19
+24 ± 1.0V
PWR8-7
PWR8-10
+24 ± 1.0V
2
4
DFL
+24V4
PD19 (Y)
+24V41
K
F72 <4A>
PD72 (R)
+24V41
–
D6
TP21
TP19
+24 ± 1.0V
PWR10-5
PWR10-8
+24 ± 1.0V
+24V42
K
F73 <4A>
PD73 (R)
+24V42
–
D7
TP22
TP19
+24 ± 1.0V
PWR10-15
PWR10-17
+24 ± 1.0V
+24V43
K
F74 <4A>
PD74 (R)
+24V43
–
D8
TP23
TP19
+24 ± 1.0V
PWR10-7
PWR10-9
+24 ± 1.0V
2
2
DFL
+24V5
PD20 (Y)
+24V51
F76 <4A>
PD76 (Y)
+24V51
–
D9
TP24
TP11
+24 ± 1.0V
PWR11-1
PWR11-4
+24 ± 1.0V
+24V52
K
F77 <4A>
PD77 (R)
+24V52
–
D10
TP25
TP11
+24 ± 1.0V
PWR11-12
PWR11-14
+24 ± 1.0V
+24V53
K
F78 <4A>
PD78 (R)
+24V53
–
D11
TP26
TP11
+24 ± 1.0V
PWR11-3
PWR11-5
+24 ± 1.0V
P+12V
D15
TP29
TP11
+12 ± 0.5V
2
1
DFL
+24V6
PD21 (Y)
+24V61
F79 <4A>
PD79 (Y)
+24V61
–
D12
TP27
TP11
+24 ± 1.0V
PWR11-6
PWR11-9
+24 ± 1.0V
+24V62
K
F80 <4A>
PD80 (R)
+24V62
–
D14
TP28
TP11
+24 ± 1.0V
PWR11-17
PWR11-20
+24 ± 1.0V
+24V63
K
F81 <4A>
PD81 (R)
+24V63
–
D16
TP30
TP11
+24 ± 1.0V
PWR11-8
PWR11-10
+24 ± 1.0V
1
2A
JFL
D+5V_MC
PD5 (G)
D+5V2
F62 <5A>
PD62 (G)
PDB23
D+5V2
–
D1
TP1
TP2
+5 ± 0.25V
PWR8-14
PWR8-17
+5.10 ± 0.25
P+5V
–
D4
TP11
TP12
+5 ± 0.25V
D+3.3V
D3
TP8
TP5
+3.3 ± 0.12V
1
2B
JFL
+24V0
PD6 (G)
+24V02
F64 <4A>
PD64 (G)
+24V02
–
D5
TP21
TP16
+24 ± 1.0V
PWR8-19
PWR8-21
+24 ± 1.0V
+24V03
K
PD65 (R)
+24V03
–
D6
TP22
TP16
+24 ± 1.0V
PWR8-20
PWR8-22
+24 ± 1.0V
1
1A
HFL
+24V1
PD12 (Y)
+24V11
F66 <4A>
PD66 (Y)
+24V11
–
D7
TP23
TP16
+24 ± 1.0V
PWR9-1
PWR9-3
+24 ± 1.0V
+24V12
F67 <4A>
PD67 (Y)
+24V12
–
D8
TP24
TP16
+24 ± 1.0V
PWR9-10
PWR9-12
+24 ± 1.0V
1
1B
HFL
+24V2
PD14 (Y)
+24V21
F68 <4A>
PD68 (Y)
+24V21
–
D9
TP25
TP16
+24 ± 1.0V
PWR9-5
PWR9-7
+24 ± 1.0V
+24V22
F69 <4A>
PD69 (Y)
+24V22
–
D10
TP26
TP16
+24 ± 1.0V
PWR9-14
PWR9-16
+24 ± 1.0V
2
5
DFL
+24V3
PD18 (Y)
+24V31
K
F70 <4A>
PD70 (R)
+24V31
–
D11
TP27
TP16
+24 ± 1.0V
PWR10-1
PWR10-3
+24 ± 1.0V
+24V32
K
F71 <4A>
PD71 (R)
+24V32
–
D12
TP28
TP16
+24 ± 1.0V
PWR10-11
PWR10-13
+24 ± 1.0V
PAC23
S+24V
–
D16
TP6
TP8
+24 ± 1.2V
1
2B
JFL
+24V0
PD6 (G)
+24V02
F64 <4A>
PD64 (G)
+24V02
–
D2
TP4
TP5
+24 ± 1.0V
PWR8-8
PWR8-11
+24 ± 1.0V
2
2
DFL
+24V5
PD20 (Y)
+24V50
F75 <2A>
PD75 (Y)
+24V50
–
D3
TP2
TP3
+24 ± 1.0V
PWR5-5
PWR5-2
+24 ± 1.0V
1
4B
PFL
A+24V_RS
PD8 (Y)
A+24V1_RS
F51 <4A>
PD51 (Y)
LDD23
A+24V
–
F132 2A
TP33
TP32
+24 ± 1.0V
PWR6-1
PWR6-3
+24 ± 1.0V
A+24V2_RS
K
F52 <4A>
<PD82> (Y)
IL24V
–
F139 3.2A
TP35
TP38
+24 ± 1.0V
PWR6-2
PWR6-4
+24 ± 1.0V
PD52 (R)
1
4A
PFL
A+8V_RS
PD9 (Y)
A+8V_RS
F53 <5A>
PD53 (Y)
A+8V
–
F133 4A
TP34
TP32
+8 ± 0.4V
PWR6-5
PWR6-6
+8.1 ± 0.4V
1
3A
EFL
A+12V_RS
PD10 (G)
A+12V1_RS
F54 <4A>
PD54 (G)
A+12V
–
F134 0.5A
TP36
TP32
+12 ± 0.6V
PWR6-19
PWR6-21
+12.1 ± 0.6V
A+12V2_RS
K
F55 <4A>
<PD85> (Y)
IL12V
–
TP56
TP38
+12 ± 0.6V
PWR6-8
PWR6-10
+12.1 ± 0.6V
PD55 (R)
1
3B
EFL
A-12V_RS
PD11 (G)
A-12V_RS
F56 <4A>
PD56 (G)
A-12V
–
F136 0.5A
TP39
TP38
-12 ± 0.6V
PWR6-24
PWR6-23
-12.05 ± 0.6V
–
F137 3.2A
A+5V
F135 0.5A
TP35
TP32
4.75 to 5.25V
A-5V
TP41
TP32
-4.75 to -5.25V
R+5V
TP37
TP40
4.75 to 5.25V
R-5V
TP42
TP40
-4.75 to -5.25V
D+5V
F138 0.5A
TP46
TP47
4.75 to 5.25V
3.3V
TP45
TP47
3.18 to 3.41V
L+5V
TP58
TP59
4.75 to 5.25V
L+8V
TP55
TP59
7.6 to 8.4V
IL8V
F131 0.5A
TP30
TP32
7.6 to 8.4V
PREF+5V
TP51
TP40
4.90 to 5.10V
REFÅ{5V
TP52
TP40
4.90 to 5.10V
REF+3V
TP60
TP8
2.94 to 3.06V
1
5
CFL
D+12V_IM
PD4 (G)
D+12V0_IM
F57 <2A>
PD57 (G)
Image control
box(GMC23)
+12V
–
–
–
GMC9-1pin
GMC9-4pin
+12 ± 0.6V
PWR7-1
PWR7-4
+12.05 ± 0.6V
D+12V1_IM
F58 <5A>
PD58 (G)
+3.3V
–
–
–
GMC9-2pin
GMC9-4pin
+3.3 ± 0.165V
PWR7-2
PWR7-5
+12.05 ± 0.6V
D+12V2_IM
F59 <5A>
PD59 (G)
+5V
–
–
–
GMC9-3pin
GMC9-4pin
+5 ± 0.25V
PWR7-3
PWR7-6
+12.05 ± 0.6V
1
3A
EFL
A+12V_RS
PD10 (G)
A+12V1_RS
F54 <4A>
PD54 (G)
(GEP23)
A+12V
–
FA1 <1A>
–
GEP9-2pin
GEP9-1pin
–
PWR6-19
PWR6-21
1
3B
EFL
A-12V_RS
PD11 (G)
A-12V_RS
F56 <4A>
PD56 (G)
A-12V
–
FA2 <1A>
–
GEP9-3pin
GEP9-4pin
–
PWR6-24
PWR6-23
PS1(AlphaII650)
PS2(AlphaII650)
Slot-1
Slot-2
Slot-3
Slot-4
Slot-5
Modul-type