Audio/Video Input/Output Block Diagram - Panasonic DVD-LV75 Service Manual

DVD-LV75 / DVD-PV55

14.4. AUDIO/VIDEO INPUT/OUTPUT BLOCK DIAGRAM

IC3001 IC4001
(AV-DEC) (A-D/A)
41
40
SERIAL
A OUT2 119 47
I/F
A OUT1 118 46
45
CONTROLLER
38
IC4008
(A-D/A)
A OUT0 117 2
SERIAL
SRCK 115 3
I/F
LRCK 114 1
CONTROLLER
IC3001-117
7.3Vp-p(10usec./div.)
5
ICE OUT 110
C-OUT 135
VREF C 132
VR3021
C ADJ.
Y-OUT 140
VREF Y 137
VR3022
Y ADJ.
D/A LPF 14
D/A LPF 13
D/A LPF 12
MODULATOR
D/A LPF 11
D/A LPF 10
D/A LPF 9
OSC
IC4004
(1/2)
37 42 34 35 36
IC4009(1/2)
IC4011
(1/2)
INT L
D/A LPF 16 1
EXT
2
10
MODULATOR
IC4008-13,16
3.1Vp-p(0.5msec./div.)
IC4009(1/2)
IC4011
(1/2)
OSC INT R
D/A LPF 13 13
EXT
12
22 23 24 26 27 28 11
+B
IC3201
(VIDEO DRIVER)
C
15 12
C
6
Y
IC3001-135 + 5
0.8Vp-p(20usec/div)
3.3V
11
CVBS
OUT
Y
2 10
I/O IN
9
I/O OUT
3.3V 7
IC3001-140
1.2Vp-p(20usec/div)
SELECT
3
SW
IC4002
(1/2)
IC4002
(1/2)
IC4003
(1/2)
Q4003
IC4003
(1/2)
Q4004
IC4004
(1/2)
Q4005
IC4005
(1/2)
Q4006
VR4001
IC4007
(1/2)
15
IC4007
(1/2)
14
IC3201-11 IC3201-12
2.2Vp-p 1.2Vp-p
(20usec./div.) (20usec./div.)
QR3202
Q3203
38
:VIDEO SIGNAL
:AUDIO SIGNAL
TP4006 TP4005
TP4003 TP4004
TP4007 TP4010
Q4007 TP4008 TP4012
Q4008
TP4001
SW6003
+9V
LCD ON/OFF
Q4001
QR4003 QR4001
QR4002
TP4002
Q4002 +3.3V
QR4007
D-OUT
+9V
DACSEL
IC3201-6
QR4009
2.2Vp-p
(20usec./div.)
IC3002
S2
S1
+
Q3202
LCD C
AMP
LCD Y
AV IN/OUT
3
2 OPT OUT
1
3
2 5.1CH OUT
1
SP-L
SP-R
HEADPHONE
EGI
IC6001-41
CPU A-MUTE FROM CPU
POW A-MUTE FROM OPERATION
AUDIO LINE
IN/OUT
IC6001-39
IC6201-48
+5V
EGI
4 2
5
3 1
LCD
LCD
DRIVE
3
VIDEO LINE
2
IN/OUT
1
IC6001-54