Memorex MT1120S Service Manual page 3

A B
8
ACCESSORY
TM101
RC-DW040
7
6
2
5.2
P50/H.SYNC
4
5
R109
0
P00/EXT MUTE
4.7K
R116
5
P01/I2C_OFF
OS101 47K
R117
PIC-28143SY-2
3.2
P02/AUDIO MUTE
4.7K
5
0
P03/(Surround)
0
C125 P04
0.01 F
0
P05/(Center_SP)
R131
5
INT2/P.FAIL
47 1/4W
R134 10K 5
INT1/REMOCON
R115
R135
4.2
P23/SYNC
47K
10K
C130
4
NC
P24
100P CH
NC
P25/ON_TIMER
5.6
AVCC
C122
R130 1K
2.2
C121_1
50V 1 KA
HLF
200P CH
C120
0.8
V.HOLD
0.001 B
R133
3.6
CVIN
1.5K
0
3
CNVSS
1
3.9
Xin
4.4
Xout
X101
CSTS0800MG03-T2
0
VSS
2
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
G-1
C
MICON/TUNER SCHEMATIC DIAGRAM
TU001 ENV56D66G3
C003
50V 4.7
R001_1
33K 2W
MICON IC
IC101 OEC7044C 3
4.8 R123 4.7K
RED R
4.8 R122 4.7K
P51/V.SYNC GREEN G
4.8 R121 4.7K
BLUE B
R120 4.7K
0
OUT1/BLANK BL
0
P20/AV2
R132 47K
5.2
P21/AV1
R127 47K
5.2
P22/POWER
NC
P10/DEGAUSS_H
R105 3.3K
5.2
SCL1
C117_1
NC
SCL2
47P CH
R106 3.3K
5.2
SDA1
C116_1
NC
SDA2 47P CH
NC
AD1/X_RAY_TEST
R107
0
X-RAY
10K
2.8
AD4/AFT
5.2
AD5/KEY1
R112
5.2 2.2K
AD6/KEY2
R113
5.2
2.2K
RESET
C114
3.6
OSC1
10P CH
C113
4.4
OSC2
10P CH
5.2
VCC
C101
0.022 F
C119
5.0 5.0 0.0 5.0
0.1 F 5 6 7
C118
6.3V 470 YK
4 3 2
0.0 0.0 0.0 0.0
NOTE:
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
C
D E
(MAIN PCB)
AGC
TP001
JWF-50K-1
KA
W801
R101
8
560
1
CAUTION: SINCE THESE PARTS MARKED BY ARE
ATTENTION:
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D E
F G
FROM/TO CHROMA
AGC
TUNER+5V
IF
SYNC
I2C_OFF
Y_VIDEO
VD
HD
OSD_R
OSD_G
OSD_B
OSD_BLK
GND
POWER
AT+5V
AFT
SCL
SDA
RESET
FROM DEFLECTION/CRT
X-RAY
FROM TV POWER
+B
FROM/TO SOUND AMP
SDA
SCL
AUDIO_MUTE
TO AV
AV1
AV2
EXT_MUTE
R126
W837
2.7K
R128
560
DEFLECTION SIGNAL
TUNER VIDEO SIGNAL
LES PIECES REPAREES PAR UN ETANT
R.SIGNAL
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
G.SIGNAL
DANS LA NOMENCLATURE DES PIECES
B.SIGNAL
F G
H
8
7
6
5
4
3
2
PCB010
TMX474
1
H
G-2