Toshiba e-STUDIO353 - Abnormality In The Ih Control Circuit

13 - 13 e-STUDIO350/352/353/450/452/453
FUSER UNIT / PAPER EXIT SECTION
13
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13.4.6 Abnormality in the IH control circuit
When an abnormality is detected in the IH control circuit, it stops the power supply to the IH coil and
displays a message “call for service”.
(1) IH control circuit
CPU output level of the IH control circuit changes depending on the condition of IH coil. This out-
put level goes through the photocoupler into the gate array.
PA3
VDD
IH board
PA2
5V SW
H1ERR2
H1ERR1
LGC board
CPU
Engine CPU
Fig. 13-407
05/11