Panasonic TH-37PD25U-P Service Manual page 125

to DG2
PA2
BT_30V
1
to DG6
PA6
L_IN 1
R_IN 3
S_CLOCK1 13
21 MAIN_9V S_DATA1 14
23 MAIN_9V
3 5VD1
20
MAIN_DEFEAT
5VD1
5
19
POWER_OFF_DEFEAT
15 MAIN_9V
18
RESET
7 MAIN_5V_2
17
STB_5V
19 MAIN_5V_2
MAIN_5V_1
11
13 MAIN_5V_1
MAIN_2.5V
25
27
MAIN_2.5V SPEAKER_MUTE 16
17 NR_10V
32
TV_ON
33
SOS
36
AC_ON/OFF
PA5
to P5
7
AUDIO_12V
8
AUDIO_12V
4
STB_5V
IC2304
AUDIO+9V
AVR
1 3
9V
76
IC2401
SOUND CONTROL
LIN
1 L AMP
ADJ EQUALIZER
AGC SURROUND
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
PA24 5 7 3 1 4 2 4 5 6 7 8 1
PA23
(FOR FACTORY)
IC2402
ACTIVE
FLITER
3 1
400Hz
L OUT 25 5 7
BASS
TREBLE
8
TONE
R OUT 24
26
Q2310,Q2312
HP
MUTE
PA8 15 8 9 10 11 12 18 19 6 14 8 11 17
TO
DG8
(FOR FACTORY)
IC2302
HP/SP AMP(R)
SP_R+
13
18
SP_R-
12
25 AMP STB SW
9 VCC
8
28 1
27 HP STB SW
IC2301
HP/SP AMP(L)
SP_L+
13
18
SP_L-
12
25 AMP STB SW
9 VCC
8
28 1
27 HP STB SW
IIC_BUS CONNECTION(FOR FACTORY USE)
RESET
IRQ
SDA3
SCL3
SDA2
SCL2
SDA1
SCL1
IIC_CONT
STB_5V
7 5 3 1 PA21 11 10 9 8 7 6 5 4 2 1 PA22
(FOR FACTORY)
TH-37/42PD25U/P
PA-Board Block Diagram
PA3
SPEAKER(R)
1
2
3
4
SPEAKER(L)
TO K9
PA9
4 HP_L
6 HP_R
7 Vpp12V
5
STB_5V
3
RXD
1
TXD
PA12
TO D12
11
RESET
10
IRQ
9
S_DATA3
8
S_CLOCK3
7
S_DATA2
6
S_CLOCK2
5
S_DATA1
4 S_CLOCK1
2
IIC_CONT
1
STB_5V
TO D4
PA4