Memorex MT2272, Руководство по обслуживанию

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A B C D E F G H
A B C D E F G H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
DEFLECTION SIGNAL
B.SIGNAL
G.SIGNAL
R.SIGNAL
TUNER VIDEO SIGNAL
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
TU001 ENV56DB6G3
1
10 11
12
13
14
15
2 3 4 5 6 7 8 9
C118
470 6.3V YK
C128
100
6.3V
YK
C140
0.001 Y
C104 0.01 F
C108_1 56P SL
C114
15P CH
C113
15P CH
C107_1
56P SL
C106
100P
SL
C109
100P
SL
C110
100P
SL
C007
0.1
B
C124_1
1 F
C119
0.1
F
C121
220P B
C103
470P B
C120
0.001 CH
C003
4.7 50V KA
C002
470
6.3V
YK
C112
10
16V
KA
C115
0.47
50V
KA
C137
0.1 50V KA
C129
0.1 50V KA
C125
0.1 50V KA
C122
1 50V KA
C123
10
50V
YK
R146
10K
R143 10K
R111
47K
1/4W
R140
47 1/4W
R004 100K
R102
560
R124
4.7K
R104
560
R103
560
R105 3.3K 1/4W
R106
3.3K 1/4W
R118
680
R128
560
R101
560
R126
2.7K
R108 1K
R119
1K
R123
4.7K
R122
4.7K
R121
4.7K
R120
4.7K
R131
100 1/4W
R114
10K 1/4W
R112
2.2K
R113
2.2K 1/4W
R107
47K 1/4W
R130
1K
R109
47K
R110
1K
R125 100
R133 100
R139 100
R138
4.7K
1/4W
R136
10K
R137
56K
1/4W
R141
270
1/4W
R142
270
1/4W
R129
1M
R134
10
R144
1K
R145
1.8K
R127 2.7K
R115
47K
D102
1SS133
D101
1SS133
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
ETANT LES PIECES REPAREES PAR UN ATTENTION:
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE SINCE THESE PARTS MARKED BY CAUTION:
D001
MTZJ30B
D104
MTZJ6.8B
Q103
KTC3198
BUFFER
W801
TP001
W828
W845
TM101
RC-DW040
Q102
KTA1266
BUFFER
L101
2.7uH
Q101
KRC101MAT
PROTECT SW
IC199
S-24C08ADPA-01
MEMORY IC
1 2 3 4
5 6 7 8
SW101
SKHVBED010
27 CH UP
SW103
SKHVBED010
27 VOL UP
SW104
SKHVBED010
27 VOL DOWN
SW105
SKHVBED010
27 POWER
SW102
SKHVBED010
27 CH DOWN
IC101 OEC7072A
MICON IC
1
10
11
12
13
14
15
16
17
18
19
2
20
21 22
23
24
25
26
27
28
29
3
30
31
32
33
34
35
36
37
38
39
4
40
41
42
5
6
7
8
9
CAUTION: DIGITAL TRANSISTOR
S102X S102Y
Vout B+ GND
OS101
RPM7138-H5
1 2 3
+30V
PROTECT_A
GND
DEGAUSS_H
AGC
IF
TUNER+5V
PROTECT
AFT
SYNC
VD
I2C_OFF
X-RAY
OSD_B
X-RAY_TEST
OSD_G
POWER
OSD_R
H_SYNC
OSD_BLK
AV2
SDA
EXT_MUTE
AV1 SCL
CLOCK_CONT
POWER
FSC
RESET
AV1
ON_TIMER
AT+5V
Y_VIDEO
SDA
SCL
AUDIO_MUTE
(MT2272)
(MAIN PCB)
0
5.0
5.0
4.9
5.0 5.0
5.0 5.0
1.20
1.2
1.2
5.0
G-2
0 4.9
G-1
TO COMB/FILTER
TO AV
FROM/TO DEFLECTION/CRT
FROM/TO POWER
NC
6.2 NC 1.3
0 0
NC
NC
0
NC
ACCESSORY
PCB010
TMB544
FORM/TO SOUND
FROM/TO CHROMA
0
0
NC
NC
IF BTL BPL V.S SDA SCL
ADRES
AGC
30.0
4.6
0
0 0 0
4.9
MICON/TUNER SCHEMATIC DIAGRAM
VSS E2 E1 E0
VCC
MODE
SCL SDA
VCC
0
Xout
VSS
CNVSS
Xin
OSC2
OSC1
P.FAIL
REMOCON
X-RAY
BLUE B
GREEN G
RED R
BLANK
RESET
CVIN
V.HOLD
HLF
SCL1
SDA1
FSC IN
POWER
CLOCK CONT
V.SYNC
H.SYNC
I2C_OFF
STANDBY_H
SYNC
AV1
AV2
X-RAY_TEST
KEY2
KEY1
FILT
H_CTL
PROTECT
AUDIO MUTE
AFT
VOLUME
ON_TIMER
DEGAUSS_H
EXT_MUTE
0
3
4
2
5.0
5.0
2.3
5.0
5.0
5.0
4.9
4.9
4.9
0
0
5.0
0
0
0
4.9
0
0
0
0
0
0
0
5.0
5.0
4.6
3.2
4.9
2.9
0.8
2.1
1.6
5.1
0
5.0
5.0
0
5.0
5.0
0
1
4.9
0
4.8