Toshiba TS3100 - Replacement of Output Ics (X8 GN, X8 GI Printed Board)

MAINTENANCE MANUAL
3.3.6 Replacement of Output ICs (X8GN, X8GI Printed Board)
If the current exceeding the specified current has run through the output unit, the ICs
on the X8GC, X8GN (X8GI) printed board is damaged.
When this happens, replace the ICs.
Before the replacement, examine and identify an fault circuit, remedy the cause, then
replace the ICs.
The relationship between the output ICs  and output signals is shown below.
I/O Board (X8GN/X8GI)

Output IC U3
User output signal:
DOUT1 ~ DOUT8
Connector: OUTPUT

Output
ICs

Output IC U4
User output signal:
DOUT9 ~ DOUT16
Connector: OUTPUT

Output IC U5
User output signal:
DOUT17 ~ DOUT24
Connector: OUTPUT

Output IC U6
User output signal:
DOUT25 ~ DOUT32
Connector: OUTPUT
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