20-39
20.6 Printer/Processor DC Power Supply Unit and Circuit Boards
20
The DC power supply system can be diagnosed by checking the LEDs on the PWR23 circuit board after removing
the left lower cover.
LED Condition:
[
] ON
[ ] OFF
■
DC Power Supply Indication LEDs
Green:
power supply output (normal ON)
Yellow:
ON/OFF condition of control signal from the CTL23 or LDD23 circuit board (normal ON)
Orange: Error alarm (normal ON)
NOTE: If the fan on the DC power supply unit stops, the unit stops all outputs due to activation of the overheat protection circuit.
■
DC Power Supply Indication LEDs
20.6.4
DC Power Supply System LED Indication
AlphaII
PWR23
Interlock
Power Output
Slot
ID
Connected to
fuse_(A)
LED
Relay
SW
fuse_(A)
LED
ID
CN_No
PS1
5
D+12V_IM
ATX23
<GMC23>
F57<2A>
(PD57)
D+12V0_IM
PWR7
F58<5A>
(PD58)
D+12V1_IM
F59<5A>
(PD59)
D+12V2_IM
4
A+24V_RS
LDD23
F51<4A>
(PD51)
A+24V1_RS
PWR6
F52<4A>
(PD82)
K201
D680-681
–
(PD52)
A+24V2_RS
A+8V_RS
F53<5A>
(PD53)
A+8V_RS
3
A+12V_RS
LDD23
GEP23
F54<4A>
(PD54)
A+12V1_RS
PWR6
F55<4A>
(PD85)
K202
D680-681
–
(PD55)
A+12V2_RS
A-12V_RS
F56<4A>
(PD56)
A-12V_RS
2
D+5V_MC
CTL23
PWR23
PDA23
PDB23
F60<2A>
(PD60)
D+5V0_MC
F61<5A>
(PD61)
D+5V1_MC
PWR8
F62<5A>
(PD62)
D+5V2_MC
+24V0
PAC23
PDA23
PDB23
F63<4A>
(PD63)
+24V01
F64<4A>
(PD64)
+24V02
K206
D724
–
(PD65)
+24V03
1
+24V1
PDB23
F66<4A>
(PD66)
+24V11
PWR9
F67<4A>
(PD67)
+24V12
+24V2
F68<4A>
(PD68)
+24V21
F69<4A>
(PD69)
+24V22
(PD16)
AC
(PD2)
AC
(PD1)
AUX
(PD17)
FAN
(PD13)
DC
(PD3)
FAN
(PD7)
DC
(PD22)
main
(PD23)
sub
(PD18)
+24V3
(PD4)
D+12V
(PD24)
main
(PD25)
sub
(PD19)
+24V4
(PD8)
A+24V
(PD9)
A+8V
(PD10)
A+12V
(PD11)
A–12V
(PD20)
+24V5
(PD5)
D+5V
(PD26)
+24V13
(PD6)
+24V0
(PD27)
+24V46
(PD21)
+24V6
(PD12)
+24V1
(PD28)
A+24V
(PD14)
+24V2
(PD29)
A+8V
RS12V1
MC5V1
ON/OFF
SLOT5
PS_Fail
SLOT3
SLOT4
SLOT1
SLOT2
PS1
PS2