Gestetner G060 Service Manual page 816

BOARDS
4.2.3 NCU (US)
Surge
TIP
Protection
Over-
RING
current
Protection
T1
T2
Jumpers
Item
JP7 These jumpers should be shorted when the machine is connected to a dry
line.
JP8
DB1 Also remove DB1 when the machine is connected to a dry line.
G307
Noise C M L
Filter Relay
Current
Sensor
Noise
Filter
O H D I S W .
D B 1
Surge
Protection
NCU
Description
4-4
J P 7
TRXD
L-
DC Loop
Transformer
J P 8
Hook0
Hook1
ExRing
Ring
Detection
Circuit
G307D920.WMF
O H D I S W
C M L S W
SM