Blown Fuse Conditions - Gestetner B147 Service Manual

BLOWN FUSE CONDITIONS

4.8 BLOWN FUSE CONDITIONS
Fuse
Power Supply Unit
FU1
CB1
FU2
FU91
High Voltage Power Supply Board–Transfer
IP101
4.9 LEDS (BCU)
LED
LED 3 (Red)
LED 2 (Green)
LED 1 (Yellow)
B147/B149/B190
Rating
115 V 220 - 240 V
15A/125V
— 8A/250V
10A/125V 5 A/250V
10A/125V 10A/125V
1.5A/50V
Blinking
The Main CPU
correctly.
The MUSIC CPU functions
correctly.
The DSP functions correctly.
Symptom when turning on the
— No response (No power is supplied
to the electrical components.)
No response (No DC power is
supplied to the electrical
components.)
Only 24V DC power is not supplied.
The  LED lights. But you see no
other response.
SC285 (The electricity to the
following components is cut off: the
transfer roller, paper attraction roller,
and transfer exit roller.)
Status
functions The Main CPU does not function
properly.
The MUSIC CPU does not function
properly.
The DSP does not function properly.
4-84
main switch
Stays OFF or ON
SM