Hitachi RAS-H(V)RNME-AF Service Manual page 299

11 Servicing

Removing electrical components
D A N G E R
• Do not touch the electrical components of the PCB directly.
• When handling the PCB, take care of components. Do not apply excesive force to them, in order to avoid da-
maging the motherboard and failures
Remove the service cover according to section
service cover in this chapter.
• Disconnect all the connectors in the PCB.
• Remove the PCB by sliding four (4) holders in the arrow
direction.
• Remove the PCB for power distribution of the compres-
sor and the motor.
• To remove the PCB, slide de four (4) holders in the
arrow direction.
No.
1 Holder (4 pcs.)
2 PCB1 for control
3 Transformer
4 Terminal board
Removing the relay PCB
• Remove the service cover according to the section
moving Service Cover in this chapter.
• Disconnect all the wires connected to the relay PCB.
Electrical Box
U W
Electrical Box
Back Side of
U W
V
Surface
U
Back Side of
V
Surface
289
SMGB0070 rev. 1 - 08/2011
Removing
Part
U
Re-
Surface
U
Surface
U
SEG1
SK1
CN5A CN14 CN15
PCN10 PCN9 PCN8
PCB1 PCN13
Y52C
ON DSW6
1 2 Y20A
SEG1
ON
LED2 CN5A DSW1 CN14 CN15
Y21
PCB1 1 2 3 4 PCN10 PCN13
PSW1 PSW2 PSW3
SW1 YCH
RSW1
ON DSW6 TP1
ON ON
1 2
1 2 3 4 5 6 1 2 3 4 5 6
0 0
DSW3 DSW4
U ON
LED2 DSW1 LED1
1 2 3 4 ON
DSW2
1 PSW1 2 3 4 PSW2 5 6 PSW3
SW1
RSW1
TP1
ON ON
1 2 3 4 5 6 1 2 3 4 5 6 0 0
DSW4
LED3 DSW3 PCN1
LED1
CN11 ON
DSW2
CN8 ON 1 2 3 4 5 6
1 2
DSW5
LED3
CN11
NF
CN8 ON
1 2
TF1
DSW5
TF1
EF
1
L2
L1 N
FUSE
EF
CAPACITY
1
50A
L1
FUSE
CAPACITY
50A
1
2
Electrical Box
W
Back Side of
V
Surface
U
3
Surface
V
Surface
V
L12 N2
SK1
L12 N2
PCN9 PCN8 NF
1
Y52C
Y20A
NF
Y21
1
YCH
DCL
PCN1
3
DCL
TB1
NF
3
CMC
TB1
L11 N1
CMC
1 2
L11 N1
L2
N 1 2
2
Surface
U
SEG1
SK1
CN5A CN14 CN15
PCN10 PCN13 PCN9 PCN8
PCB1
Y52C
ON
DSW6
1 2
Y20A
ON
DSW1
LED2 Y21
1 2 3 4
PSW1 PSW2 PSW3
SW1 YCH
RSW1
TP1
ON ON
1 2 3 4 5 6 1 2 3 4 5 6 0 0
DSW4
DSW3
LED1
ON
DSW2
1 2 3 4 5 6
LED3 PCN1
CN11
CN8 ON
1 2
DCL
DSW5
NF
3
TF1
TB1
CMC
EF
1
L2
L1 N 1 2
FUSE
CAPACITY
50A
4
Surface
W
Surface
W
DIP-IPM
R
DCL1
JP12
R116 R115
CMC
~ ~ JP11
DM2
DIP-IPM
+ -
R
RY2
DCL1
JP12
R116 R115
DANGER HI G H VOLTAGE
CMC
~ ~ JP11
DM2
~ ~ R111
CP20
R2
+ - C33
DM3 RY2 R96 R3 DCL2
T
+ - QN1
R48
R46
DANGER HI G H VOLTAGE
~ ~ R111
CP20
JP14 R2
C33 R3
CN4 CN1 DM3 R96 DCL2
1 WH 1 WH
T
+ - QN1
R35
R48
R46
IC5
CP2 R54
C25 R34
R93
R43
CP5
CP26
JP14 C52
PC208 CN4 CN1
WH WH
1 1
R35
C4 W
C38 IC5
C39 R54
C203 CP2
R93 C47 C25 R34
R43
CP5
CP26
C6
JP10 V
C52
PC208
C102
C53 U
C4 R15 W
C38
C39
C203 C101
C47
C54
C6 R14 JP10 V
R30 R301
D2
C102 C53 U
R15
C101
JP9
C54
R14
R30 R301
D9
D2
IC3
S PCN202 PCN201
CN202 RD CN201
WH RD WH
C D 1 1
D10
JP9
1 1 1 1
D9
IC3
S PCN202 PCN201
CN202 RD CN201
WH RD WH
D10 C D 1 1
1 1 1 1
NF
NF
Ma
MC
Mar MO
MC
EF1
Surface
MO CM
V
EF1 RVR
CMC
MV
L12 N2
RVR
TB1,
NF MV
TF1
1
TB1,
PCB
TF1
EFR
PCB
Y
52
EFR
Y
21
Y
Y
52
20
Y
Y 21
C
Y
L11 N1
20
THM
Y
CH
THM
THM
THM
THM
PSH
THM
PSC
PSH
DCL
PSC
DIP
DCL
NF1
DIP-
PSW
NF1
C112 PSW
JP6 PSW
JP4
JP5
PSW
C112 PSW
R117
JP6
JP4 DS
R118
JP5
PSW
DS
R117
DSW
R118
DS
DSW
DS
DSW
DS
DSW
DS
DSW
SW
DSW
CH
SW
DS
CH
2
G
DS
2
G
11