Panasonic DoubleFeature PV-D4734S, Service Manual

Page: 105 / 170

IC3001
(VIDEO SIGNAL PROCESS)
MAIN EMPH
CARRIER OFFSET
W.C / DC
ATT
(-10dB)
R
ATT
(-10dB)
ATT
(-10dB)
VIDEO
INPUT
SELECT
AGC
CLEAR
SYNC
SQUELCH
6dB AMP
C.SQUELCH
6dB AMP
P
MAIN
DE EMPH
SUB
LPF
DEMO DLIM
G
EQ
N
S
P
EQ
FM AGC
629
TRAP
NL.EMPH
NL.DE EMPH
FBC
ALC FO / DEV ADJ
S-DET
FM MOD
629
TRAP
SP
SP
17
21
19
23 26
28 73 74 67 80 83 20
86
CH2
CH1
SP2
SP2
SP1
SP1
CH2
CH1
SP2
SP1
SP1
SP2
90
OSC
69 63
X3001
REC FILTER
BPF
BE
BD
ACC
MAIN
CONV1,2
C.BDL LPF HPF
89
85
87
NP,NC
YNR
CLAMP
35 33
Y-LPF
ACC
2M
LPF
CTL TRAP
FH HPF
C.K
BPF TRAP
DELAY
MAIN
CONV1.2
B.E
B.D
N P
33 35
Y-LPF
YNR
DEH
45 57 55 46
CCD
29
50
56
Q6009
Q3003
Q3005
Q3002
S-VIDEO
OUT
Y
C
(SW)
IC3002
(VIDEO SIGNAL PROCESS)
IC6001
(FROM IC6001-59)
DVD SELECT(H)
OSD
SIGNAL
PROCESS
52
6
4
2
TP6010
5
UHF/VHF TUNER UNIT
VIDEO
TUNER
VIDEO
RF
17
1
NOT USED
VIDEO
IN2
VIDEO
IN1
VIDEO
OUT
PR/CR
OUT
PB/CB
OUT
Y OUT
Q3014
(FROM IC6001-81)
SP(L)
Q4172
(FROM IC6001-23)
HIFI ADJUSTMENT(H)
(FROM IC6001-71)
IIC CLOCK
(FROM IC6001-18)
VIDEO HEAD SW
(FROM IC6001-13)
V LOCK PULSE
(FROM IC6001-72)
IIC DATA
(TO IC6001-9)
TRACKING ENVELOPE
(TO IC6001-85)
S-VHS PB(H)
(TO IC6001-48)
FSC
(TO IC4201-45)
1/4 OSC
BUFFER
BUFFER
BUFFER
BUFFER
Q3001
BUFFER
P3501
5
P3501
4
P3501
6
VIDEO SP
L HEAD
VIDEO SP
R HEAD
P3501
2
P3501
1
P3501
3
VIDEO SLP
L HEAD
VIDEO SLP
R HEAD
91
P5001
DVD VIDEO
17
P5001
DVD S-Y
9
P5001
DVD S-C
11
P5001
DVD Y
19
P5001
DVD PB
21
P5001
DVD PR
23
12
MAIN C.B.A.
CYLINDER UNIT
REC VIDEO SIGNAL PB VIDEO SIGNAL
FROM
DVD II
BLOCK
DIAGRAM
VIDEO SIGNAL PATH BLOCK DIAGRAM
PV-D4734S/PV-D4744/PV-D4744S/PV-D4754S/PV-D4734S-K/PV-D4744S-K/PV-D4754S-K
VIDEO SIGNAL PATH BLOCK DIAGRAM
1.0Vp-p V1
0.5V 20µs
1.5Vp-p V1
0.5V 20µs
440mVp-p V1
0.2V 20µs
1.0Vp-p
V1
0.5V 20µs
A
A
440mVp-p V1
0.2V 20µs
0.44Vp-p V1
0.2V 20µs
1.3Vp-p V1
0.5V 5ms
B
5.0Vp-p V1
2V 5ms
B