Philips DVP3050V/75, Service Manual

Page: 27 / 77

1-12-2
Video Block Diagram
H9923BLV
FBC
Y/C
MIX
AMP
CCD 1H
DELAY
PB FM
AGC
RP RP
45
VXO
67
66
X302
4.43MHz
Q307
BUFFER
Q304
BUFFER
72
71
57
59
54
52
51
61
BPF D.E.
C-COMB
Q302, Q303
PEAKING AMP
EE
AGC
PB
FM-EQ
IIC-B
US SD
A
IIC-B
US SCL
CYLINDER ASSEMBLY
VIDEO(R)-1
VIDEO-COM
VIDEO(L)-1
CN253
1 2 3
(DECK ASSEMBLY)
VIDEO (R)-1 HEAD
SP HEAD AMP EP HEAD AMP
REC FM AGC
TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM
TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM
RF-SW
D-REC-H
H-A-SW
D-V-SYNC
C-ROTA
H-A-COMP
V-ENV
LUMINANCE SIGNAL PROCESS CHROMINANCE SIGNAL PROCESS
H-A-COMP
C-ROTA
D-V-SYNC
RF-SW/H-A-SW
VIDEO (L)-1 HEAD
VIDEO (L)-2 HEAD
VIDEO (R)-2 HEAD
VIDEO(L)-2
VIDEO-COM
VIDEO(R)-2
4 5 6
TU701
IC301 (Y/C SIGNAL PROCESS)
IC501
(OSD)
REC-VIDEO SIGNAL
SERIAL
DECORDER
24
6
50
52
91 90 88 85 84 82
SP EP
+
74
OSD CHARACTER MIX
29
24
23
94 28 10 27 11
D-REC-H
30
BUFFER
Q305
DVD VCR
TP751
V-OUT
WF3
TP301
C-PB
WF2
VIDEO OUT
VIDEO IN
MAIN CBA
TP504
RF-SW
WF1
OUTPUT-SELECT
DVD-VIDEO
TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM
C-SYNC
C-SYNC
93
IC751 (OUTPUT SELECT)
4
11
10
9
SW CTL
(TUNER UNIT)
MODE: SP/REC
PB-VIDEO SIGNAL
DVD VIDEO SIGNAL
JK752
TO DVD VIDEO/AUDIO BLOCK DIAGRAM <DVD SECTION>
IC1404
REAR
JK751
FR
ONT
3 5
JK753
FR
ONT
32
31
ENV-DET
18
19
17
21
20
46
41
43
49
38 36 34
DVD VCR
(INPUT SELECT)
4
3 5
9
SW CTL
INPUT-SELECT
VIDEO -OUT VIDEO -IN VIDEO -IN
TP753
V-IN
Q308
BUFFER
“
“ = SMD
TEST POINT INFORMA
TION
:INDICA
TES A
TEST POINT
WITH A JUMPER
WIRE A
C
R
OSS A HOLE IN
THE PCB
.
:USED
T
O
INDICA
TE A
TEST POINT
WITH A COMPONENT LEAD ON FOIL SIDE.
:USED
T
O
INDICA
TE A
TEST POINT
WITH NO
TEST PIN.
:USED
T
O
INDICA
TE A
TEST POINT
WITH A
TEST PIN.
NO
TE FOR
WIRE CONNECT
ORS:
1.
PREFIX SYMBOL "CN" MEANS CONNECT
OR.
(CAN DISCONNECT AND RECONNECT
.)
2.
PREFIX SYMBOL "CL" MEANS
WIRE-SOLDER
HOLES OF
THE PCB
.
(WIRE IS SOLDERED DIRECTL
Y
.)