Test Points; Fuses; Variable Resistors - Gestetner A294 Service Manual

4.9.2 TEST POINTS

ADF Main Board
Number
TP100
TP101
TP102
TP103
TP104
BCU
Number
TP647 Ground
TP679 Ground

4.9.3 FUSES

ADF Main Board
Number
FU100 Protects the 38 V line
FU101 Protects the 24 V line
PSU
Number
FU401 Protect the ac input line.
I/F Board (Option)
Number
FJ101 Protects the 5 V power line. If this fuse is broken, all the related
(T1A250U) options are not recognized.

4.9.4 VARIABLE RESISTORS

ADF Main Board
Number
Adjusts the original stop position for the single-sided original at
VR100
no skew correction mode.
VR101 Adjusts the original stop position for the double-sided original.
Charge/Bias/Grid Power Pack
Number
For the charge corona PWM. This VR is secured by paintlock.
VRC
Do not change the setting in the field.
For the grid PWM. This VR is secured by paintlock.
VRG
Do not change the setting in the field.
SM
CÓPIA NÃO CONTROLADA
Label
TXD TXD to the copier
RXD RXD from the copier
GND Ground
12 V +12 V
5 V +5 V
Monitored Signal
Description
Description
Description
4-93
CÓPIA NÃO CONTROLADA
TEST POINTS/DIP SWITCHES/LEDS
Monitored Signal
Function
Function
A294/A295