Memorex MT1191V Service Manual page 16

PCB1 MAIN 4551-2011601D
R142
1 k
1/4W
C180
100p B
R146 1 k
5V
R103 100
R104 100
42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
R105
1k
R116
1k
TP6
AFT
TP3
IF
TP5
AGC TP4
GND
R3
10k
AGC SCL SDA BM BP BT IF
! TU1
UHV/VHF
75
VHF/UHF/CATV TUNER
! TE 1
SCHEMATIC DIAGRAM
VOUT
RX101
VCC REMOTE
SENSOR
GND
5V
C177
270p
D306 R181
1SS133
33k
Q173
R177
2SC945 (P) WF-2
33k
R180
R178
68k
56k
1/6W
L301
Q303
15 uH
2SC945 (P)
R306
330
1 3
CF301
GND
C217 4.5MHz C318
TP9
47p 47
TRAP
2
CH /16V
R218
Q301
1k
2SC945 (P)
1 3
C218
C232
47p C362
47 100p
2 CH
/16V
C317
CF201 L203 0.01
8 7 6 5 22uH
4.5MHz TP7
BPF
SIF
T202
VCO
IC102 C331
C213
M24C02 R362 0.01
4700p
39K
B C212
4.7
50V
1 2 3 4 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40
SIF SIF VCC
VCC
GND VCO
BPF CLAMP
BLACK
STRETING
FM 3.58
LIMIT WPS
DET 90 AFT
TRAP
DC REST SMOOTH
Q 1 ACC
DET DET Y-DL
COLOR DEMO
LOCK LOCK
DET DET
KILL TINT
RF
SW APC
AGC
ANALOG RGB
PIF PIF VCXO
GND VCC GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
X301
3.58MHz
C221
0.01
ZF
C206
C322
1000p
0.47
B
/50V
C209
SF201
47
45.75MHz /16V R350
470
C210 C208
0.01 0.47
ZF /50V
Q351
DTC143ZS
! R812
R805 Q803
10 1/2W
470 2SC2120 (O)
R806 D801
150 1SS133
R808
1 1/6W
CN801
C804
220 /16V
C803
R810
2200p 2.2
R809
R801 C801 2.2 1/6W
470 4.7 /50V D802
C805
1SS133 0.1
Q801 Q802
2SC945 (P) 2SA950 (O)
! SAFETY CRITICAL DEVICE
S A F E T Y C R I T I C A L C O M P O N E N T S
THE DESIGN OF RECEIVER CONTAINS MANY CIRCUITS AND COMPONENTS INCLUDED
SPECIFICALLY FOR SAFETY PURPOSES. FOR CONTINUED PROTECTION. NO CHANGES
SHOULD BE MADE TO THE ORIGINAL DESIGN AND COMPONENTS SHOWN IN
ON THE SCHEMATIC SHOULD BE REPLACED WITH EXACT FACTORY REPLA CEMENT PARTS.
THE USE OF UNAUTHORIZED SUBSTITUTE PARTS MAY CREATE A SHOCK FIRE X-RAY
RADIATION OR OTHER HAZARD. SERVICE SHOULD BE PERFORMED BY QUALIFIED
PERSONNEL ONLY.
RELIABLE AND PERFORMANCE
FOR CONTINUED RELIABILITY AND PERFORMANCE EXACT FACTORY REPL ACEMENTS
ARE RECOMMENDED FOR ALL OTHER PARTS REPLACED. IF A SUBSTITUT E MUST BE USED
BE SURE ITS QUALITY AND SPECIFICATIONS ARE IDENTICAL TO THE ORIGINAL PART.
R128
2.2k C126
560p B
1/6W
Q101
Q102
DTC143ZS
2SC945 (P)
C127
1000p B
R137
15k
C129
100p
B
WF-7
WF-5
IC501
WF-1
AN5512
VERTICAL
VIDEO
DEFLECTION
TP8
R328 OUTPUT
R503
2.2k
100
C308
1/4W
10
6
/50V
C306
C315
D302
0.1 2.2
WF-4
1SS133
MYL /50V
1
TP11
X551 H. VCC X-RAY
503KHz
D553
C562 R556 D554
1SS133 R557
1 /50V
5.6k 1SS133 1k
R331
390k R551
1/6W 2.2k
D552 C503
1/4W
C130
RD6R8ES2 0.033
100p
C305 MYL
C551
1 /50V
0.01
R501
ZF
1k
39 38 37 36 35 34 33 32 31 30 29
H-OUT X-RAY
H.RAMP
32fH
AFC1 AFC2
SHARP VCO
CONTRAST
HC/D
WPL
H-SEP.
V-SEP. VC/D
BRIGHT
LPF
MATRIX
BUS
V. RAMP
CUTOFF
3.3V H.VCC
18 19 20 21 22 23 24 25 26 27 28
OUT IN
3 9V 1
2
R558
330
IC311
NJ7809FA
VOLTAGE
REGULATOR
D607 WF-9
1SS133
R612
3.9k 2W MTL
R381
R613
820 1/2W
3.9k 2W MTL
5V
33V
R615 D606
47 1/4W 1S2473
IC671
!
NJ7805LD
START
PROTECT
ERROR V
!
F. BACK
LCN801
RESET
ROUT
G CD
8 7 6 5 4 3 2 1
SP801
8 OHM C682 C681
C678
SPEAKER 2200
0.1 100
/6.3V MYL
/25V
RESET OUTPUT
SCHEMATI C DI AG RA M NO TE S :
1. ALL RESISTANCE VALUES ARE IN .
k = 1000 . M = 1000k .
! 2. THE WATTAGE OF RESISTORS ARE 1/8W UNLESS OTHERWISE NOTED.
3. ALL CAPACITANCE VALUES ARE IN uF UNLESS OTFHERWISE NOTED.
p = pF = u u F.
4. SAFETY REQUIREMENTS COMPONENTS IN ACCORDANCE WITH
!
PRESENT SAFETY REGULATIONS. THESE COMPONENTS. MOST
ONLY BE REPLACED BY ORIGINAL PARTS.
PCB2 CRT
TP16
R456
!
3.3k 1/2W
SU451
R454 R455
TP13 3.3k 1/2W 3.3k 1/2W
9
TP15
TP14
8
Q451 Q452 Q453
1573A (R) 1573A (R) 1573A (R)
JL101A JL101B
7
RED BLUE GREEN
5P 5P
R R C454
1000p 6
G G
/2kV
5
B B
R457 R458 R459 R461 4
R460 R462
270 1.2k 270 1.2k 270 1.2k
1/6W 1/4W 1/6W 1/6W 1/6W 1/4W 3
9V 9V
JL101
1
TP10
GND
4551-2011602D
JL102B
! DY501 JL102
VERTICAL HORIZONTAL
DEFLECTION YOKE
CN501
JL102A
C507 D561
0.047 1F4-E
MYL
D501 C506
WF-6
1N4002E 100/35V
R505
R463
390 !
3 4 9 2.7
1/4W
1W
CEM FUSE
DRIVER OUTPUT FLYBACK
8
STAGE STAGE GENERATOR
PULSE R563
!
SHAPER
220
5W
5 2 7
MTL
C505 C508
C504 0.1 1000
470p B MYL
/35V
C512
100p B
C509
R507
2.2
56k
/50V
R508 !
L.L R509
R510 33k
1.8 T671
5.6k 1/4W HORIZONTAL
C673 OUTPUT
!
3300p HV
/400V R673
WF-3 2.2
C510
1/4W
3.3
160V 9
/50V
D673
1F4-E
6
C683
5
0.01/400V
C672 7
0.01
15V
/400V
R672
D681
2.2 1W
1F4-E
11V 4
C676
D672
C671 F
1000
1F4-E
/25V 3300p
/400V
3 S
C675
! R671 D671
2.2 1000
1F4-E 1
WF-8 /35V
1W
G
R562 FB551
C558
0.5
Q551 560p
2SC1473A (R) 1/2W
/500V 2 8
T552
3 4
C609
1
6
Q552 33
R559 2SD1877 /160V
330
C557
!
680p
/500V
R561
2.2k 5W CEM
130V
R674
1.8k 1W MTL
!
C614
0.01
/250V
KH
!
C604
! !
IC601 ! 0.01
D601
STR30130 ! /250V L602
RS104 KH FILTER
R601
2.7
3 4
5W !
!
MTL
2 1
FU601
4A
/125V
TH601
C605 !
RL601
0.01 !
RELAY
!
/250V
1 2 3 4 5 !
KH
R603
270
15W ! Q601
2SC945
CEM D603
R610
(P) 1N4002E
R604
1.8k
12k 1W R607 C602
!
5W
4.7k ! 0.01 /250V KH
CEM
!
C616
D602
0.01
1N4004E
/250V
R611
680
C611
1/2W
1000 /25V
D605
RD12ES2
15
V451
!
CRT
TP1
TP2
!
P1
AC120V
60HZ