Service manual

7-2
P7151BLIF
IF/Video Block Diagram
63
18
80
32
CF31 CF32
VCO F/B
Q31
AFT-IN
EXT-H
WH301A
BLUE5 GREEN4 RED3
IC111
IC31 (IF SIGNAL PROCESS)
CHROMINANCE PROCESS CIRCUIT
LUMINANCE PROCESS CIRCUIT
H-SYNC PROCESS CIRCUIT
V-SYNC PROCESS CIRCUIT
VCXO
OSD
RGB MATRIX /COLOR CONT
OSD SW /CONTRAST /BRIGHTNESS
RGB DRIVE /CUT OFF /H.V. BLK
LPF
17 62
44 43 37 36
ACL
H-DRIVE
FBP-IN
V-RAMP-OUT
V-RAMP-F/B
X301 3.58MHz
SAW FILTER
VIF AMP
VIDEO DET
VCO
4.5MHz FILTER
LPF
IF AGC DET
EQ AMP
RF AGC AMP
AFT
4.5MHz TRAP
FM DET
AF AMP
16
11 13
6
17
4
2 7
1 9
TU11
SF11
IF
7
TU-AUDIO
49 48 47
MAIN CBA
TV MICON/VIDEO /AUDIO/CHROMA /DEFLECTION
WF14
WF13
TO CRT/H.V. BLOCK
DIAGRAM
16
TO AUDIO BLOCK DIAGRAM
SWITCHING
(TUNER UNIT)
VIDEO SIGNAL
IF SIGNAL
AUDIO SIGNAL
53
JK721 S-VIDEO-IN
CY
DTV-Y DTV-Cb DTV-Cr
25
26 27
VIDEO SW
35 23
JK701 VIDEO-IN2 (FRONT)
21
(REAR) JK742 VIDEO-IN1
TO DTV MODULE BLOCK DIAGRAM
BASE BAND TINT Cr/Cb CLMP/AMP /DELAY
CHROMA COMB
TO CRT/H.V. BLOCK
DIAGRAM
WH301B
WF12
30 29
S-SW