Publication Number 53719. Issue 3, April 2012
Page 62
SERVICE MANUAL FOR THE 13754 TGX150 INTERNAL RLAN TYPE A/B SC ETM
7.5 and also the Serial Number, Memory Expansion & Internal Serial, Type A/B-2 Coupler
PCB’s as detailed in Paragraphs 7.6.2 – 7.6.4.
1.
Working from the rear, outside of the lower cover, locate and remove the two screws
and washers that secure the ETM’s Main input 37-way socket to the lower cover.
2.
With reference to Figure 26, locate and remove the two M3 nyloc nuts securing the
front edge of the control board to the lower cover.
3.
The control board can now be carefully lifted clear.
Figure 26. Control Board Fixings & Connections
Paper low sensor
connector (PLJ)
Keyboard data
connector (PLEXT1)
Keyboard power
connector (PLEXT2)
Lower Cover
Control Board
Serial number PCB
connector (PLP)
Paper out
microswitch
connector (PLO)
Printer data
connector (PLM)
Main input
connector (PLA)
Printer stepper motor
connector (PLT)
Solenoid
connector (SOL1)
MEMORY EXPANSION &
INTERNAL SERIAL PCB
ixings:- M3 nuts,
fibre & sh/proof washers
(4 off)
PCB F
Control Board
fixings M3 nyloc
nuts (2 off)
Module housing
Assembly
Solenoid Locking
(If fitted)
Main input
connector fixings
(2 off screws &
washers)
TYPE A/B-2
COUPLER PCB
