Mitsubishi Electric MUFZ-KJ-NAHZ Series Service Manual page 35

9-7. TEST POINT DIAGRAM AND VOLTAGE
MFZ-KJ09NA MFZ-KJ12NA MFZ-KJ15NA MFZ-KJ18NA
Indoor electronic control P.C. board
Varistor
(NR11)
Power supply (CN201)
input 208/230 VAC
Resistor
(R111)
Connector cable (CN24)
Indoor fan motor
(CN211)
(+)0 or 15 VDC
(+)3-6 VDC
15 VDC
(–) GND (high-
voltage DC)
294/325 VDC
5 VDC
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)
Vane motor (CN151)
Horizontal
vane back -
Horizontal
vane front -
Multi- ow vane -
35
FUSE (F11) T3.15AL250V
Indoor coil thermistor [RT12,RT14,RT15 (MAIN), RT13 (SUB)]
Room temperature thermistor (RT11)
32 50 68 86 104122 140
Temperature (°F)
Serial signal
input (CN202)
JR05
Modification
)
JR06
point for
individual
operation
(Refer to 7-2.)
To disable "Auto
restart function",
cut the Jumper
wire to JR77.
(Refer to 7-3.)
12 VDC
Connect to display
receiver P.C. board
(CN1J1)
Interface (CN105)