Blown Fuse Conditions; Leds; Test Points - Gestetner B003 Service Manual

BLOWN FUSE CONDITIONS

4.3 BLOWN FUSE CONDITIONS
Fuse
115V
Power Supply Board
FU1 6.3A / 125V
6.3A / 125V
FU2
FU3
6.3A / 125V
FU4 6.3A / 125V
FU5 6.3A / 125V
FU101 15A / 125V
FU102 10A / 125V
FU103 2A / 125V

4.4 LEDS

BICU
Number
Monitors whether the program is working normally or not. The LED blinks
LED101
in normal conditions.
LED102 Flashes during program downloading.

4.5 TEST POINTS

Controller Board
Number
TP1
TP2
TP3-9
TP10
TP11
TP12
TP13
TP14
TP15
TP16
B003/B004/B006/B007
Rating
210 ~ 230V
6.3A / 250V
6.3A / 250V
4A / 250V
6.3A / 250V
6.3A / 250V
---
5A / 250V
1A / 250V
Monitored Signal
+2.5V
+3.3V
Ground
Data Strobe
Busy
Acknowledge
DB0TXD
+15V
GND
DB0RXD
Symptom at power on
"Doors/Covers Open" is displayed
"Doors/Covers Open" for the finisher is
displayed
Paper end condition
SC121 is displayed
SC302, or SC403, or SC405 displayed
No response
No response
Normal operation (optional heaters do not work)
Monitored Signal
4-18 SM