Mitsubishi Electric MFZ-KT25VG-E1 Service Manual page 36

11-7. TEST POINT DIAGRAM AND VOLTAGE
MFZ-KT25VG MFZ-KT35VG MFZ-KT50VG MFZ-KT60VG
Indoor electronic control P.C. board
Varistor
(NR11)
Power supply (CN201)
input 230 V AC
Resistor
(R111)
Indoor fan motor
(CN211)
(+)0 or 15 V DC
(+)3-6 V DC
15 V DC
(–) GND (high-
voltage DC)
325 V DC
5 V DC
Timer short mode
point (2 points)
(Refer to 8-1.)
GND
Room temperature
thermistor RT11
(CN111)
Indoor coil thermistor (CN112)
Indoor coil thermistor RT15 (MAIN 3)
Indoor coil thermistor RT14 (MAIN 2)
Indoor coil thermistor RT12 (MAIN 1)
Indoor coil thermistor RT13 (SUB)
Display receiver P.C. board
Emergency operation
switch (E. O. SW) (SW301)
Connect to indoor elec-
tronic control P.C. board
(CN301)
OBH843A
FUSE (F11)
T3.15AL250V
Vane motor (CN151)
Horizontal
vane back -
Horizontal
vane front -
Multi-flow vane -
Connector cable
(CN104)
36
Indoor coil thermistor [RT12,RT14,RT15 (MAIN), RT13 (SUB)]
Room temperature thermistor (RT11)
Temperature (°C)
Serial signal
input (CN202)
JR05
) Modification
JR06
point for
individual
operation
(Refer to 9-2.)
To disable "Auto
restart function",
cut the Jumper
wire to JR77.
(Refer to 9-3.)
12 V DC
Connect to display
receiver P.C. board
(CN1J1)
R32 sensor (CNSA)