Philips DVP3050V/55, Руководство по обслуживанию

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1-12-2
Video Block Diagram
H982BBLV
MAIN CB
A
Q391
TU701
VIDEO IN
VCR DVD
OUTPUT-SELECT
VIDEO OUT
TP751
V-OUT
6
18
IC752 (INPUT SELECT)
REC VIDEO SIGNAL
PB VIDEO SIGNAL D
VD
VIDEO SIGNAL MODE: SP/REC
15
2 1
WF1
BUFFER
SW CTL
IC751
(OUTPUT SELECT)
15
1 2
9
10
11
TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM
DVD-VIDEO INPUT-SELECT
TO DVD VIDEO/AUDIO BLOCK DIAGRAM <DVD SECTION> TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM
OSD CHARACTER MIX
38
40
IC501
(OSD)
LUMINANCE
SIGNAL PROCESS
VIDEO (R)-1 HEAD
VIDEO (L)-1 HEAD
(DECK ASSEMBLY)
VIDEO(R)-1 VIDEO-COM VIDEO(L)-1
CN253
1 2 3
VIDEO(L)-2 VIDEO-COM VIDEO(R)-2
4 5 6
VIDEO
AGC
TUNER FRONT
REAR
RP
R
P
SYNC SEPA
FBC
Y/C MIX
CCD 1H
DELAY
R P
YNR/COMB FILTER
CHROMINANCE
SIGNAL PROCESS
IC301 (VIDEO SIGNAL PROCESS/ HEAD AMP)
26
57
32 30
QV/QH
6dB
AMP
TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM
TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM
CYLINDER ASSEMBLY
RF-SW
RF-SW
59
V-ENV H-A-SW H-A-COMP
H-A-COMP
TP302
VIDEO (L)-2 HEAD
VIDEO (R)-2 HEAD
TP301
C-PB
D-V SYNC C-SYNC
D-V SYNC
25 53 24
YCA-SCL
14
36
37
39
34
Q301
BUFFER
28
58 60
SP EP
54
YCA-SDA
55
YCA-CS
SERIAL
I/F
VCA
CLAMP
69 70
SP HEAD AMP EP HEAD AMP
72 73 74 65 66 67
ENV-DET
C-ROTA
C-ROTA/RF-SW
WF2
WF3
JK753 VIDEO -IN JK752 VIDEO -IN
FR
ONT
REAR
JK751 VIDEO -OUT
REAR
(TUNER UNIT)
WF6
VCR DVD
SW CTL
9
10
11
“
“ = 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
.)