Read Panasonic WA-H60CH / WA-H120CH Service Manual online
2-1
SCHEMATIC DIAGRAM OF POWER BOARD / POWER SWITCH BOARD / POWER SELECTION BOARD /
LED-1 BOARD / SP-SW BOARD / LED-2 BOARD
E301
SPEAKER
TERMINALS
SPEAKER
TERMINALS
SW95
POWER
ON/OFF
SWITCH
POWER
ON/OFF
SWITCH
POWER
ON/OFF
ON/OFF
FUSE
AC IN
E101
POWER
CORD
POWER
CORD
T91
POWER
TRANSFORMER
POWER
TRANSFORMER
TO
PREAMP
BOARD
CN104
PREAMP
BOARD
CN104
TO
PREAMP
BOARD
CN103
PREAMP
BOARD
CN103
POWER
ALL
CALL
ALL
CALL
1
2
3
4
5
SW52
ALL CALL
SWITCH
ALL CALL
SWITCH
SW51
SPEAKER SELECTION SWITCH
SPEAKER SELECTION SWITCH
OUTPUT
LEVEL
D44
POWER
INDICATOR
POWER
INDICATOR
D42
OUTPUT
LEVEL
METER
OUTPUT
LEVEL
METER
TO
PO AMP
BOARD
CN401
PO AMP
BOARD
CN401
D81
ALL CALL
INDICATOR
ALL CALL
INDICATOR
T301
OUTPUT
TRANSFORMER
OUTPUT
TRANSFORMER
CHASSIS
GROUND
GROUND
SIGNAL
GROUND
GROUND
C301
D301
D304
Q301
Q303
D315
D305
D31
1
220/35
R324
5.6K
R305
47K
R306
100
R301
10K
+
-
C42
10/16
6.8K
D42
3.3K
R41
R45
R46
3.3K
R47
3.3K
R48
3.3K
(RED)
(GREEN)
(GREEN)
(GREEN)
(GREEN)
1
3
5
7
9
2
4
6
8
10
R49
10K
+
-
C43
10/16
+
-
C41
2.2/50
R42
18K
R44
10K
R43
1.6K
+
-
C302
10/35
+
-
C303
470/35
C305
330/35
R308
J320
E
C
B
2.2K
R307
4.7
C304
0.1
+
-
+
-
C307
R31
1
22K
C310
1000P
C311
1000P
C308
1000P
+
-
~
~
D308
D314
C309
RL302
RL302
3
4
5
J313
J314
*
J315
1
2
1000P
J316
1000/50
C327
0.1
E310
C316
0.1
C320
2200P
C321
2200P
C322
*
L301
1
2
3
4
*
J310
*
J311
E307
E306
0.068
C96
OPEN
C95
OPEN
C317
0.1
R322
47K
R323
47K
E31
1
630mA
250V
F301
+
-
*
C319
+
-
*
C318
+
+
-
~
~
-
E303
MUTE
3
VCC+24V
2
GND
1
GND
3
VCC +24V
2
LEVEL SIG
E41
(E42)
2K
D43
D41
D44
R50
J41
1
POWER CON
2
POWER VCC
1
E301
1
70V
4
4
Ω
9
K1 (N)
11
100V
SHORT BAR
SHORT BAR
13
14
12
12
2
10
3
8
4
6
5
4
PAGING(R)
7
K2 (COM)
5
COM
NC
3
NC
1
2
2
15
NC
NC
NC
16
CN301
ALL
SW
VCC+24V
ALL
CONT
3
NC
2
DC+24V
1
4
5
GND
6
CN308
AC+24V
AC+100V
NC
NC
4
NC
5
AC+100V
6
3
2
2
AC+24V
1
0V
50V
4
Ω
3
70V
2
100V
50V
4
Ω
70V
100V
T301
CN303
CN304
1
4
5
NC
COM(GND)
HOT
BLACK
WHITE
COM
HOT
0V
6
7
8
0V
AC SW B
NC
3
NC
2
AC SW A
CN95
SW95
2
1
4
3
1
4
5
5
NC
6
110V
7
GND
A OUT
D5
D5
7
IN
8
VCC
9
IC41
6
5
5
D4
D3
D3
D2
D1
D1
4
3
2
1
3
2
1
OUT3
OUT1
OUT2
3
NC
2
K1
1
GND
SW52
SW51
1
3
4
6
2
5
8
7
9
11
10
12
14
13
15
17
16
18
20
19
21
23
22
24
26
25
27
29
28
30
2
2
1
3
4
6
5
ALL
SW
(E52)
E51
1
4
5
OUT4
6
OUT5
7
NC
8
P
AGING
OUT3
OUT1
OUT2
NC
K1
OUT4
OUT5
NC
P
AGING
9
3
2
1
4
5
6
7
8
9
110V
COM
COM
110V
AC
100V
100V
AC
24V
24V
0V
0V
TF
T91
110V
NC
3
3
NC
2
2
0V
CN61
SW61
1
1
4
4
5
5
NC
6
6
7
8
9
8
9
0V
NC
110V
E315
-B
+B
3
COM(GND)
2
HOT
1
4
CN306
E308
VS313
VS314
VS315
E309
*
F101
E101
E102
AC SW B
3
NC
2
AC SW A
1
(E81)
D81
ALL
CONT
3
NC
2
VCC+24V
R81
3.3K
1
CN62
110V
3
NC
2
0V
1
*
C318,319
WA-H60CH : 1000/100
WA-H120CH : 2200/100
WA-H120CH : 2200/100
*
J315
Default setting
is open.
is open.
*
L301
WA-H60CH : OPEN
WA-H120CH : MOUNT
WA-H120CH : MOUNT
*
F101
WA-H60CH : 1.6A 250V
WA-H120CH : 2A 250V
WA-H120CH : 2A 250V
*
J301,311
WA-H60CH : MOUNT
WA-H120CH : OPEN
WA-H120CH : OPEN
Important safety notice
Components identified by " " mark have special characteristics for safety.
When replacing any of these components, use only manufacture's specified parts.
Components identified by " " mark have special characteristics for safety.
When replacing any of these components, use only manufacture's specified parts.
LED-1 BOARD
POWER BOARD
LED-2
BOARD
BOARD
SP-SW BOARD
POWER
SELECTION
BOARD
SELECTION
BOARD
POWER SWITCH
BOARD
BOARD
1
A
B
C
D
2
3
4
5
6
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