Panasonic DMR-EH75VP Service Manual page 89

IC3701
VIDEO/AUDIO PROCESSOR
IC-DETAIL BLOCK DIAGRAM
C-SW
VCR
6
DVD C IN
6.7M
43 DVD
LPF
+ +
V-SW
VCR
DVD Y IN
6.7M
41 CL 6
LPF
DVD
Y/Py/G-SW Y-SW
Y VCR
6
DVD G/Py IN
38 CL PY DVD
Py/G-SW
6
6.7MLPF
DEC
13.5MLPF
Pb/B-SW
6
DVD B/Pb IN
CL 6.7M
40 DEC
BIAS LPF
Pr/R-SW
6
DVD R/Pr IN
CL 6.7M
39 DEC
BIAS LPF
V-SW
VCR
6
SDA
22 DVD
SCL
23
DVD L1/L2 SW DET.
6
V/Y-SW
IIC-BUS
S1/S2 DET3 CONTROL
2 OFF
S1/S2 DET2
6.7M
4 ON
LPF
S1/S2 DET1
8
C-SW
OFF
6.7M
ON
VTR OSD LPF
VIDEO IN
1 CL -6/0
V/Y-SW
OFF
6.7M
ON
LPF
VIDEO2 IN
13 GCL
Y-SW
V/Y-SW
Y3
Y2 SEP
Y1
COMP
C-SW
C3
C2 IN
7 C2
C1
Y2 IN
5 CL
Y-SW
V/Y-SW
DVDY
C/S DET2
MIX
77 Y3
SEP
Y2
COMP
Y1
+
C-SW
DVDC
C3
C2
C1
VIDEO1 IN
V-SW
15 GCL
TU
L2
L1
C1 IN
11
V-SW
Y1 IN
9 CL TU
L2
L1
C/S DET1
79
C75 OUT
75 30
C75 SAG
S1/S2
29
BIAS
Y/C MIX
75 28
Y75 OUT
75 32
Py/G OUT
75 36
Pb/B OUT
75 34
Pr/R/C OUT
75 35
V1 OUT
75 21
VHS L1/L2 SW DET.
18
Y/V OUT VHS
45
C OUT DVD
51
Y/V OUT DVD
49
72
INPUT
71
SELECTOR
SWITCH
L CH
80
VCR
INPUT
TU SELECTOR
L2 SWITCH
78 L1
L CH
VCR
76
DVD
R CH
VCR R CH
74
TU
VCR
L2
L1
DVD
L CH
P-ON
VCR
56 AGC
MUTE
DVD
R CH
22
IIC BUS
VCR
INTERFACE
23
DVD
53
TUNER IN
54
GCL 17
70
69
58
59
P-ON
6 65
MUTE
P-ON
6 66
MUTE
+
P-ON
6 61
MUTE
P-ON
6 62
MUTE
89
IC4801
AU +9V SWITCHING REG.
IC-DETAIL BLOCK DIAGRAM
5 4
VIN VOUT
THERMAL
PROTECTION
+
-
BANDGAP
REFERENCE
ON H GND NOISE
1 2 3
IC7301
AUDIO MULTIPLEX DECODER
IC-DETAIL BLOCK DIAGRAM
SIF DEMOD./SAP DEMOD./
MATRIX &
SIF INPUT
21 WIDE BAND EXPAND/
MODE SW
SPE.EXPAND
IC7402
TU +5V SWITCHING REG.
IC-DETAIL BLOCK DIAGRAM
8 7 6 5
VIN CONT
DRIVER BIAS
CURRENT THERMAL
LIMITTER SHUTDOWN
REFERENCE
VOUT GND CN
1 2 3 4
IC3701 Detail Block Diagram
IC4801 Detail Block Diagram
IC7301 Detail Block Diagram
IC7402 Detail Block Diagram
DMR-EH75VP IC-Detail Block Diagram
DMR-EH75VP
R OUT
29
L OUT
30