Panasonic Omnivision VHS PV-C2780, Service Manual

Page: 182 / 185

20
16
TUNER
LINE
REC
PB
REC
25 13
Y/C MIX
ART V/H MIX
REC/PB CHROMINANCE
SIGNAL PROCESS
X3001
(3.58MHz)
REC/PB LUMINANCE
SIGNAL PROCESS
PB
REC PB
10 12 82 81 7 8
I C
CONTROL
2
Y/C
MIX
PB
REC-Y
REC-C
PB-Y
46
45
41
AT ENVELOPE
DETECT
40 49 27 29
REC
PB
REC
34
REC
PB PB-C
IC3001
(VIDEO PROCESS)
CCD 1H DELAY
IC3201
(WITH 2 HEAD)
(WITH 4 HEAD)
J6003
4 5
CCD 1H DELAY
TP3001
D5623
D5622
TUNER
LINE REC
PB
(FROM IC6001(31))
V-LOCK PULSE
TUNER 1 VIDEO
PB VIDEO
3.58MHz
TUNER 2 VIDEO
TUNER VIDEO
TP3002
Q3002
(TO IC6001(81))
ENVELOPE VOLTAGE
(FROM IC6001(29))
ROTARY SW
(FROM IC6001(24))
HEAD SW PULSE
P3001
1
P3501
1
P3501
1
HEAD AMP C.B.A. (FOR 4HEAD MODEL)
VIDEO
LP/SLP
L HEAD
VIDEO
LP/SLP
R HEAD
VIDEO SP
L HEAD
VIDEO SP
R HEAD
IC3501 (HEAD AMP)
L
R
L
R
SP
LP/
SLP
SP
LP/SLP
REC
PB
(FROM IC6001(30))
HEAD AMP SW
(FROM IC6001(24))
HEAD SW PULSE
(FROM IC6001(50))
PB(L)
TP3501
30
18
16
4
6
13
11
1 32 31
P3503
5
P3503
2
P3503
6
P3503
4
P3503
1
P3503
3
P3503
2
P3503
1
P3503
3
30
31 1
4
6
18
VIDEO
L HEAD
VIDEO
R HEAD
L
R
REC
PB
IC3501 (HEAD AMP)
(FROM IC6001(24))
HEAD SW PULSE
(FROM IC6001(50))
PB(L)
TP3501
IC3201
IC3101 (SW)
Q5621
1 8
(FROM IC6001(27))
I C SERIAL CLOCK
2
(TO/FROM IC6001(28))
I C SERIAL DATA
2
VIDEO IN
HEAD AMP C.B.A. (FOR 2HEAD MODEL)
REC VIDEO SIGNAL PB VIDEO SIGNAL
UHF/VHF TUNER/TV DEMODULATOR UNIT 1
(WITH PICTURE IN PICTURE)
(WITH PICTURE IN PICTURE)
TV/VCR MAIN C.B.A.
TV PROCESS C.B.A.
RF
VIDEO
25
UHF/VHF TUNER/TV DEMODULATOR UNIT 2
RF IN
1 25
RF OUT
1
(FROM IC6001(5))
3.58MHz
AMP
Q3001
Q7001
OSC
VIDEO
PIN
16
PIN
14
PIN
12
PIN
23
P5303
10
P5303
8
P5303
6
P5304
5
TO/FROM PICTURE IN
PICTURE
BLOCK DIAGRAM
NOT USED
NOT USED
NOT USED
BUFFER
Q7101
BUFFER
PIN
18
P5303
12
BUFFER
BUFFER
LINE VIDEO
3
1
7
5
2 4
(TO IC3301 (15))
VIDEO
(FROM IC6501 (38))
REC(L)/PB(H)
(FROM IC6501 (39))
LINE (L)/TUNER(H)
PIN
25
P5304
7