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Indoor unit control pcb – Sanyo CHX06052 User Manual

Page 170

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4-8

PCB and Functions

2. Indoor Unit Control PCB

CHK (test) pin

DISP pin

TRANS-S plug

EMG plug

If the fuse (F002) has
blown, determine the
cause and correct it.
Then change the socket
from the OC plug to the
EMG plug.

OC plug

Control circuit fuse
(F002)

Power LED
(LD002)

Microcomputer

Nonvolatile memory IC

Indoor heat exchanger
(E2) sensor

Indoor heat exchanger
(E1) sensor

JP001

Room temperature
(TA) sensor

OPTION plug

T10 plug

FAN DRIVE plug

EXCT plug

3. CR1 (for CR-KR74GXH56A/KHX0752~KHX1852) (Wall Mounted)