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TO DG2
PA2
BT_30V
1
TO DG6
PA6
L_IN
1
R_IN
3
34
S_CLOCK1
13
TV_ON/OFF
SUB_9V2
S_DATA1
14
21
23
SUB_9V2
2
MAIM_12V
3
SUB_5V
20
MAIN_DEFEAT
SUB_5V
5
POWER_OFF_DEFEAT
19
15
MAIN_9V
18
RESET
SUB_5V
7
17
STB_5V
19
SUB_5V
MAIN_4.2V
11
13
MAIN_4.2V
MAIN_2.5V
25
27
MAIN_2.5V
SPEAKER_MUTE
16
17
UNR_14V
32
TV_ON
TO P7
PA7
33
SOS
36
AC_ON/OFF
AUDIO_15V
1
AUDIO_15V
2
PA5
TO P5
7
AUDIO_12V
AUDIO_12V
8
4
STB_5V
75
IC2401
SOUND CONTROL
LIN
1
L AMP
EQUALIZER
AGC
SURROUND
ADJ
RIN
2
R AMP
30
31
SCL1
SDA1
IIC_BUS
IIC_BUS
Q2303,Q2304,Q2308
AUDIO
MUTE
CONTROL
Q2305,Q2306
Q2309,Q2311
SPEAKER
MUTE
CONTROL
PA17
1
2
3
3
2
1
PA25
PA23
2
4
(FOR FACTORY)
(FOR FACTORY)
IC2403
ACTIVE
FLITER
3
1
400Hz
L OUT
25
5
HPF
7
BASS
TREBLE
8
TONE
R OUT
24
26
IC2402
ACTIVE
FLITER
3
1
400Hz
LPF
5
7
8
5
6
7
1
PA8
15
9
10
11
12
18
19
6
14
TO
DG8
IC2306
SQUAWKER AMP(R)
SP_R+
11
AMP
16
SP_R-
17
4
20
IC2305
SQUAWKER AMP(L)
SP_L+
AMP
11
16
SP_L-
17
4
20
IC2302
WOOFER AMP(R)
SP_R+
11
AMP
16
SP_R-
17
4
20
IC2301
WOOFER AMP(L)
SP_L+
11
AMP
16
SP_L-
17
4
20
IIC_BUS CONNECTION(FOR FACTORY USED)
7
5
3
1
PA21
11
10
9
8
7
6
5
4
2
1
(FOR FACTORY)
(FOR FACTORY)
TH-37PA30E/TH-42PA30E
PA-Board Block Diagram
PA3
SQUAWKER(R)
1
2
3
4
SQUAWER(L)
WOOFER(R)
PA1
1
2
4
5
WOOFER(L)
7
Vpp12V
5
STB_5V
3
RXD
1
TXD
PA12
TO D12
RESET
11
RESET
IRQ
10
IRQ
SDA3
9
S_DATA3
SCL3
8
S_CLOCK3
SDA2
7
S_DATA2
SCL2
6
S_CLOCK2
SDA1
5
S_DATA1
SCL1
4
S_CLOCK1
IIC_CONT
2
IIC_CONT
STB_5V
1
STB_5V
TO D4
PA4
PA22
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