Fuse, Led, Vr, Dip-Sw, And Tp Tables; Blown Fuse Conditions; Main Motor Board; Psu - Ricoh C249 Service Manual

FUSE, LED, VR, DIP-SW, AND TP TABLES

4.3 FUSE, LED, VR, DIP-SW, AND TP TABLES

4.3.1 BLOWN FUSE CONDITIONS

Main motor board

No. Rate
Fuse 10.0 A

PSU

No. Rate
FU700 6.3 A
FU701, 702 5.0 A
FU703, 704 5.0 A

4.3.2 LED'S

MPU

No.
Monitors the paper feed circuit in the MPU. Usually, this LED is blinking at
LED101
intervals of 2 seconds.
LED102 Not used.
Monitors the CPU operation. Usually, this LED is blinking at intervals of 1
LED103
second.
Monitors the master end sensor. When the sensor detects a master, this LED is
LED104
3.5.9)
lit. (
Monitors the master edge sensor. When the sensor detects a master, this LED
LED105
is lit. (
Monitors the duct jam sensor. When the sensor detects a master, this LED is lit.
LED106
3.5.6)
(

4.3.3 VR'S

MPU
No.
VR101
Adjusts the master end sensor (
VR102
Adjusts the duct jam sensor (
VR103
Adjusts the master edge sensor (
VR104
Adjusts the 2
PSU
No.
VR1
Adjusts the thermal head voltage. (
VR2 Not used.
C264
The "close the covers" indicator is lit.
The machine does not turn on.
E-47 is displayed, and the output mode in SP mode does
not turn anything on except the main motor.
The "close the covers" indicator is lit.
3.5.7)
Function
nd
drum master sensor (
Function
Symptom
Symptom
Function
3.5.9)
3.5.6)
3.5.7)
3.5.8)
3.5.10)
4-6
24 February 2006
SM