Aiwa TV-21ST3 User manual

COLOR TELEVISION
TV-21ST3
TV-20ST5
TV-14ST5
S/M Code No. 09-997-333-0N1
SERVICE MANUAL
DATA
D
D
D
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1615
BLOCK DIAGRAM
<20,14>
<20,14>
<20,14>
I
2
C BUS INPUT
CONNECTOR
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1817
SCHEMATIC DIAGRAM-1 (MAIN SECTION)
5V REG
9V REG
100µH
100µH
<21, 20>: 5.4
<14>: 5.1
<21, 20>: 27k 2W (M/F)
<14>: 27k 3W (M/F)
<21, 20>: 5A 125V
<14>: 4A 125V
<21, 20>: PTH451BG5ROM140
<14>: ZPB31BL7ROB
<21, 20>: 680/160
<14>: 470/160
<21>: 180 20W
(CEM)
<20,14>: 220 15W
(CEM)
2
14
14
E PROM
FE
2
R348
<21, 20>: 4.7k
<14> : 5.6k
<21, 20>: 120k
<14>: 150k
<21, 20>: 120k <14>: 68k
QSUR
H
9
<20,14>
<20,14>
<20,14>
<21>
8. 9
250V
250V
250V
<21, 20>: 22k
<14>: 10k
<21>: 1.5K 7W (M/F)
<20,14>: 1.2K 7W (M/F)
R807 <21, 20>: 4.7k <14>: 6.8k
Q803
2SA1175FE
SW
<20,14>
<20,14>
<21,14>: 3.3k
<20> : 3.9k
<14>: 68k
4.7
<20,14>
FBR07HA121NB
<20,14>
<20,14>: 1k <21>: 680
5
<21>: 195.2
<20>: 188.3
<14>: 202.3
<21,20>: 270 1/2w
<14>: 390 1/2w
<21,20>: 0.1(M)
<14> : 0.047(M)
<21,20>: 100k
<14> : 82k
<21,14>: 56k <20> : 39k
<21,20>: 1.2 1W(M/F) <14> : 1.5 1W(M/F)
<21,20>: 470 1W(M/F) <14> : 680 1/2W
<21,20>: 2.2 2W
<14>: 2.7 2W
<21,20>: 10/250
<14>: 22/250
22k
<14>: 270k
<21>: MFT3607 (SAN) 21-C
<20>: MFT3608 (SAN) 20-C
<14>: MFT3609 (SAN) 14-C
<21>: 1-250 (M/P)
<20>: 0.56-250 (M/P)
<14>: 0.47-250(M/P)
<21>:
<20,14>:
<21,20>: ZJB-R
<14>: ZJB-U
<21>: 1000P
<20,14>: 4700P
<21,20>: 3.3k 1/2W
<14>: 4.7k 1/2W
1
3
6
4
<20,14> <14>: 2SD1877
T602
<21,20>: HDT-TV141-2
<14> HD MS-101N
-100
<20,14>
<20,14>
AMP
L302
100µH
<GND>
D1
12.8
L201
SIF
ADJ.
L205
VCO ADJ.
T601
FOCUS ADJ.
SCREEN ADJ.
TP302
Q301, 302
VOLTAGE
CONT.
BUFF
Q1
WAVEFORM
SHAPER
Q3
WAVEFORM
SHAPER BUFF
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2221
SCHEMATIC DIAGRAM-2 (JK/PS SECTION)
<20>:NC
<14>:GND
<20,14>
Q851, 852
VOLTAGE
CONT.
Q850
STANDBY
SW.
SWITCHING
REG.
STANDBY
SW
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25
SCHEMATIC DIAGRAM-3 (NK SECTION)
<21,20>: 470/10 <14> : 220/16
<21>:680P <20>:470P <14>:270P
<21>:390 <20>:430 <14>:470 <21>:390 <20>:430 <14>:470 <21>:560P <20>:390P <14>:270P
<21,20>:2SC3789(D/E) <14> :2SC346 7(D/E)
<21,20>:2SC3789(D/E)
<14> :2SC3467(D/E)
<21,20>:2SC3789(D/E)
<14> :2SC3467(D/E)
<21>:470P <20>:330P <14>:270P
<21,20>: 1.8k
<14> : 3.3k
<21,20>:1.8k
<14> :3.3k
<21,20>:1.8k
<14> :3.3k
C904
<21,14>:2.7
<20> :2.8
TO A
MAIN C.B
BT601
TO A
MAIN C.B
BT301
SPOT KILLER
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2827
IC BLOCK DIAGRAM
IC, TA1230Z IC, AN5285K IC, LA7832
IC, TA1201CN IC, LA4600
IC, TC90A45P[TV-21ST3] IC, STR-G6651
IC, MM1454XD
IC, MM1311AD
BUF 4.5fH
TRAP
SUB SIGNAL
BPF 3.5fH
BPF/TRAP LIMMIT
FM
DEMOD.
15KHz
LPF
15KHz
LPF
COMP.
DE-
EMPHA.
DE-
EMPHA.
MATRIX
MATRIX
CONT.
3fH
TRAP Q-DET. 1KHz
BPF
32fH
OSC
32fH 32fH FILTER
CONTROL
GND VCC MONO
COMPULSION
Q SIGNAL
OFFSET
REMOVEL
BIAS MODE
SW
GND
FILTER
AUTO ADJ. BAND
GAP
REG.
DISCRIMI-
NATION
12
13 567
8
9
10
16
17
4
3
1
1814
11
1520
19 2
MPX
IN
R
L
MONO
STEREO
BILINGUAL
MONO
OUT
MUTE
MAIN OFFSET
REMOVEL
SUB OFFSET
REMOVEL
LIMITER
REMOVEL
L OUT
R OUT
56 55 54 53 52 51 50
SIF
GND SIF VCC
49 48 47 46 45 44 43 42 41 40 39 38 37 36 35
D
GND 32FH
VCO H
AFC H
OUT SYNC
OUT FBP
IN X
RAY
ABLTV INACL
EXIT
VIDEO
BLANK
DET
AV SW
OUT
DC
RESET
Y IN
AFT
CHROMA
IN
VCC
TV DET
OUT
SIF
VCC
PIF
TANK
PIF
TANK
SIF
GND
LIMIT
IN
AUDIO
TV IN
DE
EMPHASIS
LAUDIO
IN
R AUDIO
IN 34 33 32 31 30 29
24 25 26 27 2819 20 21 22 2314 15 16 17 18
D.VCC
910111213
GND
456
PIF
END PIF
IN
R OUT L OUT RF
AGC SIF TANK AGC
FILT PIF IN PIF
VCC LOOP FILT APC FILT VCXO FAST
BLANKING
R IN G IN B IN R OUTG OUTB OUTV OUT NFB
V RAMP
V SEPA
FILT SCL SDA
78123
FM
DET LIMMITTER
VCO
90
SW
VCXO
AFC
KILLER
COLOR
ACC
AFT
BPF
ACC
CLAMP
3.58
TRAP
Y-DL
LPF
32fH
VCO
H C/D
AFC-1
X-RAY
H.RAMP
H.OUT
AFC-2
V C/D
BUS INTERFACE
ANALOG RGB
LOCK
DET
AGC
DET
RF
AGC
0
DET 1 DET
x2
SHARPNESS
CONTRAST
BRIGHT
MATRIX
CUT OFF/
DRIVE V.RAMP
H.VCC
ATT.
TNT
DEMODU
DC P.B. SMOOTH
WPS
H SYNC SEPA.
V SYNC SEPA.
CLAMP
ADC
V IN
FSC IN PLL SYSTEM CLOCK
1H LINE
MEMORY
BPF
BPF
DINAMIC
COM FILTER BPF
COLOR
KILLER
DAC Y OUT
C OUT
KIL
ADAC
1/2
13
7
15
10
4
4
1
7
10
R IN
L IN
CTL
50K
50K
VCA
Level
Sensor 1
Level
Sensor 1
Level
Sensor 2
SW
CTL
VCA
9256
GND
VREF
LS1
LS2
V/I REG.
R OUT
L OUT
3
8
VCC
10
9
8
74
1
2
3
56
STANDBY SW
STANDBY SW
P.P
GND
R OU
T
L OU
T
R IN
G
ND
L IN
CH1
INPUTAMP
CH2
INPUTAMP
PRE DRIVE
AMP
PRE DRIVE
AMP
OUTPUT
AMP
OUTPUT
AMP
REF
AMP
Vcc
Rf1
Rf2
RN11
RN12
TSD PROTECTER
REPLE FILTER
FILTER
NOISE
PREVENTION
41
2
5
3
START
V
CC
O.V.P LATCH DRIVE
OSC
T.S.D
REG
COMP2
FB OCP
SOURC
E
GND
DRAIN
COMP1
Vth(2)
Vth(1)
1234567
GND PULSE
VCC
OSC
STOP
INPUT
V OUT
PS
V OUT
POMP UP
VERTICAL
DRIVE
VERTICAL
OUTPUT
THERMAL
PROTECT
16 15 14 13 12 11 10 9
87654321
BIAS
R IN MUTE QSUR DET QF6 R OUT L OUT GND
QF5QF4
QF3
QF2
QF1
V REF
L INVCC
QSURROUND
-6dB
6dB
6dB
6dB
-6dB
14
8
2
32
13
7
1
31
11
5
9
3
-6dB
15
26
10
17
21
GND
28
V OUT
Y IN
Y OUT
C IN
C OUT
VCC
TV-L
V1-V
V2-V
V3-V
V1-Y
V2-Y
V1-C
V2-C
TV-L
V1-L
V2-L
V3-L
TV-R
V1-R
V2-R
V3-R
BIAS
SDA
SCL
MUTE
ADR
S2
Y IN
S1
L OUT
18
4
30
19
16
12
6
23
24
29
20
27
22
25
BIAS
I C LOGIC
2
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