Replacement Of Output Ics (X8Hn, X8Hi Printed Boards) - Toshiba SR Series Instruction Manual

3.3.6

Replacement of Output ICs (X8HN, X8HI Printed Boards)

If the current exceeding the specified current has run through the output unit, the
outputs may not turn on normally.
When this happens, the ICs of the X8HN (X8HI) printed board have possibly been
damaged. Replace the ICs.
Before the replacement, examine and identify an fault circuit, remedy the cause,
then replace the ICs.
[1]
Output ICs
Name of board
[1] X8HN
[2] X8HI
X8HN
Table 3.1b Type of IC
Type of IC
TD62082AP
MM5456P
– 3–14 –
MAINTENANCE MANUAL
X8HI
Manufacturer
Toshiba Corp.
Mitsubishi Electric
[2]
Output ICs
STE 73872