Memorex MVT2135B D Series Service Manual page 43

A B
8
FROM/TO MICON
PROTECT
AT+5V
AT+5V_BACKUP
VD
OSD_R
OSD_G
OSD_B
OSD_BLK
SDA
SCL
AFT_M
7
VCR_POWER_H
HD
POWER_OFF_H
6
C612
6.3V 470 YK
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
W871 W901
3
FROM/TO TV POWER
AT+30V
GND
UNREG+8V
AT+12V
P.CON+5V_SW
AT+5V
FROM MICON
TV_POWER_H
2
TUNER VIDEO SIGNAL
CAUTION: DIGITAL TRANSISTOR
R.SIGNAL
G.SIGNAL
B.SIGNAL
DEFLECTION SIGNAL
LUMINANCE SIGNAL
NOTE:
THE DC VOLTAGE AT EACH PART WAS MEASURED
1
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
COLOR SIGNAL
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
PLAYBACK VIDEO SIGNAL
A B
G-7
C
CHROMA/IF SCHEMATIC DIAGRAM
AT+5V
KTC3203_Y
W895
TU_VIDEO
CF604
2.6
R620
EFCT4R5MW5
1.9
0
100
BUFFER
Q601
2SA1037AK W865
R615
CF603
EFCT4R5YS5A
470
INT-MONI
2.0 2.0
48 47
2.3
R608
10K
R612 2.4
AUDIO_OUT
680 1/4W
C625 2.3
AUDIO BYPASS
1 F
C631 3.0
Y/C_AUDIO
EXT AUDIO IN
C623 0.0047 B
1 F
2.0
TU_AUDIO
FM DIRECT OUT
R618 10M
3.2
C632
VIF VCO F/B
C624
50V 2.2 KA
R607 9.0
16V 47 YK
VREG Vcc
220 1/2W
3.0
D601 1SS133 VIF APC FILTER
C627
R609 680 2.2
D602
VIF VIDEO OUT
MTZJ8.2B
50V 1 KA
C618 330P CH
0
VIF GND
0
C621 0.01 F
2.4
AFT_M
AFT OUT
R614 390K
2.9
QIF IN
NC
R601 2.3
RF AGC OUT
2.2K
C622
2.7
IF AGC FILTER
0.22 B
C634 1.5
0.01 F
1 2
L601 1.5 5.0
CHROMA IC
3192001
IC601
M61206FP
SAW FILTER
CF601 SAF45MFY220ZR
IN IN G OUT OUT
1 2 3 4 5
C656
0.01 F
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(SYSCON PCB)
W829
11.0 8.2
REG.
Q606
4.8 8.3 REG. 8.8
KTC3203_Y
Q603
D608
4.8 8.0
KTC3203_Y
5.5
REG.
REG.
SB140-EIC
Q602 REG.
Q605
5.5 Q604
2SD400E
2SD400E
8.3 5.0
5.0 8.3
W801
5.6 5.6
B604
W4BRH3.5X6X1
50V
C672
0.01 F
NC
NC NC
8.2 8.2 8.2 4.0 5.5 3.7 5.6 0 0 3.2
3.2
2.0
8.8
46 45 44 43 42 41 40 39 38 37 36 35 34 33
3.3
3.0
0
R IN
4.7
V PULSE OUT
0
G IN
46 SW REG CONT 34 EXT C in
47 LIMITER IN 33 8.7V REG OUT 0.1
FAST BLK
48 IF AGC 32 X'TAL
49 QIF OUT 31 ACL/ABCL 7.3
PROTECT
50 AUDIO OUT
fsc OUT NC
C659
4.9 6.3V 100
4.9
VIDEO CHROMA Vcc
4.8
V RAMP CAP
2.0
V RAMP FEEDBACK
64 VIF IN
17 V OUT 0
B IN
1 VIF IN
16 B OUT
8.0
STRAT UP Vcc
8.0
3.7
3 4 5 6 7 8 9 10 11 12 13 14 15 16
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
C675
68P CH
D620
1SS133
S107Y S107X
CAUTION: SINCE THESE PARTS MARKED BY ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D E
F G
C648 R669
470
0.22 KA
R638
8.2K
R646
C665
27K
R642 16V 10 KANP D605
5.6K 11ES1-EIC
R647
2.2K
R643
VD
47K
R648
2.2K
OSD_BLK
C658 R652
0.22 B 4.7K
C688 C630
0.056 B 100P CH
KA W827
C664
63V 1 MKT
R641
22K
R649
2.2K
W874
V_OUT
OSD_R
OSD_G
OSD_B
D621
W850
1SS133
HD
S818X
W872
CUT_OFF
D619 B.OUT
G.OUT
1SS133
R.OUT
W828
R650
HEATER
CUT OFF SW
470 1/4W Q608
KRC111SRTK
180V
1.0
POWER_OFF_H
0.4
0
3.6
0 H CONTRO
Q612
4.5
0 KRC102SRTK
0
H CONTRO
Q611
0 KRC102SRTK
H_GND
NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR.
ATTENTION: LES PIECES REPAREES PAR UN ETANT
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
DANGEREUSES AN POINT DE VUE SECURITE
IS NON POLAR ONE.
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
F G
H
8
FROM/TO Y/C/AUDIO/HEAD.AMP
7
SD_VIDEO
TU_VIDEO
TU_AUDIO
Y/C_AUDIO
VD
TO IN/OUT
INT-MONI
B.OUT
AT+5V
6
TO SOUND AMP
AUDIO_OUT
FROM/TO DEFLECTION
5
AT+5V
ACL
GND
V_OUT
HEATER
V_FEEDBACK
180V
H_OUT
H.PLUSE
H_GND
4
TO CRT
CP851A (CP851B)
B2013H02-10P
GND
3
10
CUT_OFF
9
B.OUT
8
G.OUT
7
R.OUT
6
NC
NC 5
H GND
H_GND1
4
HEATER
3
NC
NC 2
180V
1
FROM TV POWER
R672
AT+12V
2
1K 1/4W
0.8
PROTECT
5.0 Q609
KRC111SRTK
0
PROTECT PCB010
VMA227
1
H
G-8