Philips 20MC4206/37, Руководство по обслуживанию

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1-9-2
T8201BLIF
IF/Video Block Diagram
32
TUNER
TUNER/LINE
DV
D
TUNER/LINE
DV
D
LINE
T
O
CR
T/H.V
.
BLOCK DIA
GRAM
IC1201
CHR
OMINANCE
PR
OCESS
CIRCUIT
CHR
OMA
COMB /BASEBAND TINT
LUMINANCE PR
OCESS
CIRCUIT
H-SYNC PR
OCESS
CIRCUIT V
-SYNC
PR
OCESS
CIRCUIT
VCXO
OSD
RGB MA
TRIX
/COLOR CONT
OSD SW /CONTRAST /BRIGHTNESS
RGB DRIVE /CUT OFF /H.V
. BLK
LPF
14 11
53 46 45 38 37
JK1701 VIDEO-IN
24
29 30
26
52 51 50
MAIN CB
A
VIDEO (TV/LINE) SIGNAL
D
VD VIDEO
SIGNAL
TV MICON/VIDEO /CHR
OMA
/DEFLECTION
SPO
T
-KILL
71
WF2
WF17
WF18
CN1102
T
O
DIGIT
AL SIGNAL
PR
OCESS BLOCK
DIA
GRAM
<D
VD SECTION>
CN2
CF1031 CF1032
IC1001
(IF SIGNAL PR
OCESS)
SA
W
FIL
TER
VIF AMP
VIDEO DET
VCO
4.5MHz FIL
TER
LPF
IF A
GC DET
EQ AMP
RF AG
C
AMP
AFT
4.5MHz TRAP
FM DET
16
11
13 18
17
4
2 7
1 9
TU1001
SF1002
IF
AG
C
SD
A
SCL
XT
AL-IN
1 7 3 2 5
14
TU-A
UDIO
WF16
WF1
T
O
A
UDIO
BLOCK DIA
GRAM
AFT
SCL SD
A
T
O
SYSTEM
CONTR
OL
BLOCK DIA
GRAM
16
X1301 3.58MHz
RF/IF SIGNAL
AF AMP
LIM AMP
WF6
AC
L
H-DRIVE
AFC
V
-DRIVE
V
-RAMP-F/B
BLUE
GREEN
RED
TP1304
H-OUT
TP1305
AFC
TP1307
V
-DRIVE
TP1306
V
-RAMP-F/B
A
UDIO (TV/LINE) SIGNAL
CN9102
CN002
6
DV
D
-C
7
6 7
D
VD-Y
DVD-Y
8
DVD-C
6
SUB CBA
“
“ = SMD
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
.)
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.