Chroma/If Schematic Diagram - JVC TV-13142 Service Manual

[ SYSCON PWB(CHROMA/IF) CIRCUIT DIAGRAM ]
A
8
FROM/TO MICON
SPOT_H
AT+5V
AT+5V_BACKUP
VD
OSD_R
OSD_G
OSD_B
OSD_BLK
SDA
SCL
AFT_M
7
VCR_POWER_H
HD
TV_POWER_H
6
C612
6.3V 470
13 12
1.8
AGC 1
2
2.5
3
2.5
SCL 4
2.5
SDA 5
5
6
4.9
+5V 7
8
29.3
+30V 9
10
0
IF 11
15 14
4
C602
0.022 F
3
FROM/TO POWER
AT+30V
GND
UNREG+8V
AT+25V
P.CON+8V
2
CAUTION: DIGITAL TRANSISTOR
R.SIGNAL
G.SIGNAL
B.SIGNAL NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR.
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
AUDIO SIGNAL(REC)
IS NON POLAR ONE.
1 DEFLECTION SIGNAL
TUNER VIDEO SIGNAL
NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
PLAYBACK VIDEO SIGNAL
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
A
B C

CHROMA/IF SCHEMATIC DIAGRAM

AT+5V
W895
TU_VIDEO
2.6
R620
1.9 EFCT4R5MW5
100
0
BUFFER
Q601
2SA1037AK
R615
CF603
EFCT4R5YS5A
470
INT-MONI
R608 2.3
10K
R612 2.4
AUDIO_OUT
680 1/4W
C625
YK 2.3
1 F
C631 3.0
Y/C_AUDIO
C623
1 F
2.0
TU_AUDIO 0.0047 B
C632_1 3.2
R618 10M
C624_1
50V 2.2 MH7
9.0
16V 47 MH7
R607 1K 1/2W
3.0
D601 1SS133
C627_1
R609 680 2.2
D602
MTZJ8.2A
50V MH7 1
C618
330P CH
C621
2.4
AFT_M 0.01 F
2.9
R614 180K
NC
R601 2.3
2.2K
C622
2.7
0.22 B
1.5
SAW FILTER
CF601 SAF45MFY220ZR
IN IN G OUT OUT
1 2 3 4 5
L610
M61206FP
L601_1
0.33uH
3192001
S119Y
W934
C656
0.01 F
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
B C
No.51810
TV-13142 TV-13142
TV-13142W TV-13142W
D E
11.0 8.2
R632
220 2W
4.8 8.3 REG. 8.8
Q603
D608
4.8 8.0
KTC3203_Y
5.5
REG. REG.
SB10-03A3
REG.
Q602 Q605
5.5 Q604
KTC3203_Y 2SD400E
2SD400E
8.3 5.0
5.0 8.3
W801
5.6 5.6
CF604
NC NC NC
2.0 2.0 8.2 8.2 8.2 4.0 4.8 5.5 3.7 5.6 0 0 3.2 3.2 2.0 8.8
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
AUDIO BYPASS R IN
EXT AUDIO IN V PULSE OUT
FM DIRECT OUT G IN
46 SW REG CONT 34 EXT C in
47 LIMITER IN 33 8.7V REG OUT
VIF VCO F/B FAST BLK
48 IF AGC 32 X'TAL
49 QIF OUT 31 ACL/ABCL
VREG Vcc SPOT KILLER
50 AUDIO OUT
VIF APC FILTER fsc OUT
VIF VIDEO OUT
0
VIF GND VIDEO CHROMA Vcc
0
V RAMP CAP
AFT OUT
V RAMP FEEDBACK
64 VIF IN 17 V OUT
1 VIF IN 16 B OUT
QIF IN B IN
RF AGC OUT STRAT UP Vcc
IF AGC FILTER
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1.5 5.0 5.0 2.5 3.2 0.4 2.6 0 0 3.0 3.3 4.0 4.0 4.8 2.8 3.0
CHROMA
IC601
C675
68P CH
C687
0.1 F
CAUTION: SINCE THESE PARTS MARKED BY
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D E
2-17 2-18
F
(SYSCON PCB)
REG.
Q606
KTC3203_Y
B604
BL02RN1-R62 C648_1 R669
50V 0.22 470
MH7
C672
0.01 F
R638 R646
3.3
C665
8.2K 27K
3.0 R642 16V 10 KANP D605
5.6K 11ES1-EIC
0 R647
2.2K
R643
4.7
47K
R648
0
2.2K
0.1
C658 R652
7.3
0.22 B 4.7K
C688 C630
NC
C659_1
0.056 B 100P CH
4.9 6.3V 100 MH7 W827
4.9
C664
4.8
63V MKT 1
2.0 R641 22K
R649
0
2.2K
8.0 W874
S119X
8.0
3.7
D621
1SS133
W850
W872
D620
D619
1SS133
1SS133
R650
470 1/4W
1.0
0
ARE ATTENTION: LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
F
No.51810
G H
8
FROM/TO Y/C/A/H.AMP
7
SD_VIDEO
TU_VIDEO
TU_AUDIO
Y/C_AUDIO
VD
FROM/TO I/O
INT-MONI
B.OUT
AT+5V
6
FROM/TO SOUND AMP
AUDIO_OUT
VD
OSD_BLK
5
FROM/TO DEFLECTION
GND
V_OUT
ACL
V_FEEDBACK
180V
HEATER
H.PLUSE
H_GND
H_OUT
F_P.CON+15V 4
V_OUT
OSD_R
OSD_G
OSD_B
HD
CP851A (CP851B) TO CRT
51048-1000
GND
3
10
CUT OFF
CUT_OFF
9
G.OUT G.OUT
8
B.OUT B.OUT
7
R.OUT R.OUT
6 CD851
NC 2E0A3001
NC 5
HEATER HEATER
4
W896
H_GND1 H GND
3
W815
NC
NC 2
180V 180V
1
2
D618
FROM/TO POWER
1SS133 R678
AT+12V
SPOT_H 0.8
4.7K 1/4W
POWER_FAIL
POWER ON SWITCH
0.4
5.0
Q609
CUT OFF SW
KRC102RTK
Q608 0
KRC102RTK TV_POWER_H
R683
0
100
8.0
POWER FAIL SWITCH
0 Q611
KRC102RTK
PCB800 1
VMA213
G H