Mitsubishi Electric MSZ-DM25VA Service Manual page 27

10-7. TEST POINT DIAGRAM AND VOLTAGE
MSZ-DM25VA MSZ-DM35VA
1. Indoor power P.C. board
Connector to
Fuse (F11)
Terminal block
T3.15AL250V
(CN201)
Indoor terminal block
connecting (TAB1)
Indoor terminal block
connecting (TAB2)
2. Indoor electronic control P.C. board
Room temperature thermistor RT11 (CN111)
To disable "Auto restart function",
cut the Jumper wire to JR77.
(Refer to 8-3.)
Vane motor
(CN151)
5V DC
Emergency operation
switch (E.O. SW) (SW1)
OBH750
Varistor (NR11)
12 VDC GND 5 VDC
Connector to indoor electronic
control P.C. board (CN20A)
12V DC
Connector to indoor power
P.C. board (CN10A)
Resistor (R111)
Connector to
Indoor coil
thermistor
RT12, RT13
(CN112)
Timer short
mode point
(Refer to
8-1.)
GND
27
Connector to
Indoor fan motor
(CN211)
(+)0 or 15 VDC
(+)3-6 VDC
15 VDC
(-) GND
(High voltage DC)
325 VDC
Room temperature thermistor (RT11)
Indoor coil thermistor (RT12, RT13)
Temperature (°C)