Panasonic NV-FJ623EC, Service Manual

Page: 99 / 152

MUTE
QR4506
F0
VCO
45
CHROMINANCE
LUMINANCE &
FROM
FSC
27
CONTROL
SYSTEM
FROM
AUDIO H.SW
SWITCH
&
AGC
DEMODULATOR
FM MODULATOR/
LPF
BPF
BPF
30
29
SWITCH
&
PREAMP
+
AGC
LPF
SWITCH
&
AGC
DEMODULATOR
FM MODULATOR/
SWITCH
SELECT
NORMAL
PNR LCH
PNR RCH
LCH
SWITCH
SELECT
OUTPUT
+
RCH
SWITCH
SELECT
OUTPUT
LCH
SWITCH
RCH
SWITCH
LCH
SWITCH
SELECT
INPUT
RCH
SWITCH
SELECT
INPUT
TW4901
10
9
TW4902
TW4903
TW4907
HEAD
AUDIO
Hi-Fi
R
L
10
9
8
P3502
P3502
P3502
22
21
24
CONTROL
SYSTEM
FROM
D.FM REC
QR4502
MUTE
MUTE
QR4501
MAIN SIGNAL PATH IN PLAYBACK MODE MAIN SIGNAL PATH IN REC MODE
IC3001
CONTROL
SYSTEM
TO/FROM
SYS IIC DATA
SYS IIC CLOCK
43
42
INTERFACE
IIC BUS
TUNER
TO
AC HEAD
TO/FROM
A.HEAD (R)
A.HEAD (W)
TV DEMODU
DECODER/
FROM
TUNER AUDIO (N) 75
4
2
GAIN
SW
ALC
7
8
61 73
71
78 62
DECODER
FROM
TUNER AUDIO (R)
TUNER AUDIO (L) 13
8
59 RFC AUDIO OUT
DECODER/EXT
(AV2)
JK4902
2
3
6
1 AUDIO OUT (R)
AUDIO IN (R)
AUDIO OUT (L)
AUDIO IN (L)
QR4504
MUTE 52
QR4503
MUTE 51
15
14
57
53
AUDIO IN (L)
AUDIO OUT (L)
AUDIO IN (R)
AUDIO OUT (R)
6
3
2
1
TV
(AV1)
JK4903
H
NV-FJ623EC/ECN
AUDIO BLOCK DIAGRAM