Sony TRINITRON KV-VF21M40, TRINITRON KV-VF21M70, TRINITRON KV-VF21M77, RM-956 Service Manual
SERVICE MANUAL
BC-4A
CHASSIS
MODEL COMMANDER DEST. CHASSIS NO.
KV-VF21M40
KV-VF21M70
KV-VF21M70
RM-956 E SCC-P10A-A
RM-956 ME SCC-P11A-A
RM-956 JE SCC-P12A-A
EJECT
Z
PIC MODE
TIMER REC
G-CODE
TAPE SPEED
zREC
INDEX
.>
X PAUSE
REW
PLAY
mFFM
H
ENTER
x STOP
COUNTER RESETtMENU
1
5
4
70C9
8
-/--
2
EJECT
Z
PIC MODE
TIMER REC
ON/OFF
A/B
GAME
32
6
PROGR
G-CODE
TAPE SPEED
zREC
INDEX
.>
X PAUSE
REW
PLAY
mFFM
H
ENTER
x STOP
COUNTER RESETtMENU
1
5
4
70C9
8
-/--
2
PROGR
ON/OFF
GAME
32
6
MODEL COMMANDER DEST. CHASSIS NO.
KV-VF21M70
KV-VF21M77
RM-956 HK SCC-P09B-A
RM-955 HK SCC-P09A-A
RM-955
∗ Please file according to model size. ....
21
RM-956
PAL NTSC
®
(VF21M77 ONLY)
TRINITRON® COLOR VIDEO TV
SPECIFICATIONS
TV Section
Television system B/G, I, D/K, M
Color system PAL/SECAM and
NTSC
3.58
/NTSC
Bilingual system NICAM bilingual I
(VF21M77 ONLY)
Channel coverage See “Receivable
channels and channel
display”
Picture tube Trinitron
21 inches (approx. 50.7
cm measured
diagonally)
Antenna in 75-ohm antenna socket
for VHF/UHF
Video Section
Format VHS standard
Video recording system
Rotary 2-head helical
scanning system
Audio recording system
Monaural
Video signal PAL/MESECAM/
NTSC
Tape speed PAL/MESECAM
SP: 23.39 mm/sec.
LP: 11.70 mm/sec.
NTSC
SP: 33.35 mm/sec.
EP: 11.11 mm/sec.
Maximum recording time
PAL/MESECAM
SP: 240 minutes with
E-240
LP: 480 minutes with
E-240
NTSC
SP: 180 minutes with
T-180
EP: 540 minutes with
T-180
4.43
Inputs and Outputs
Inputs t1, t2/GAME IN
(video): phono jack
1 Vp-p, 75 ohms,
unbalanced,
sync negative
9 (audio): phono jack
Input level:
500 mVrms
Headphones jack Minijack
General
Clock Quartz locked
Power requirements 110-240 V AC, 50/60Hz
Power consumption 123 W
Operating temperature
5˚ C to 40˚ C
(41˚ F to 104˚ F)
Storage temperature –20˚ C to 60˚ C
(–4˚ F to 140˚ F)
Dimensions 489 x 500 x 485 mm
(19 3/8 x 19 3/4 x 19 1/
inches)
Mass 27.5 kg (60 lb 10 oz.)
Supplied accessories
8
Remote control
Two R6 (size AA)
batteries
Stabilizer band
Two clamps
Two wood screws
AC plug adaptor
(E/ME/JE model)
These operating
instructions
Design and specifications are subject to
change without notice.
– 2 –
– 87 –
– 88 – – 89 –
– 90 –
22
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
14.0
13.02.8
4.4
3.8
4.6
5.2
5V
9V
1.3
0.1
1.3
5.7
5.1
1
33.8
0
1.7
0.5
0.8
157.0
1.7
0
4.8
4.8
7V
12V
0.1
14.8
15V
1.7 0
159.0
0.7
0.7
1.3
6.5
13.0
13.0
0.2
0.8
4.8
12.0
1.3
3.2
2.0
2.0
2.9
5.5
13
12
136.6
-1.2
4.4
2.7
11
10
9
9V
135V
4.4
0.1
0.7
3.9
0
134.1
134.5
4.4
1.2
0.7
135V
-13V
0.4
5.1
9.2
14
16 15
201918
17
8
7
6
5
4
3
2
2
5.8
5.1
3.5
1.9
4.3
2.9
0.1
5.1
5.2
8.7
5.2
2.1
2.1
2.0
1.8
3.9
3.7
3.4
7.7
6.0
4.6
4.6
4.6
0.1
4.9
4.9
4.0
2.4
3.6
3.5
14.0 2.5 2.4 -11.6
135V
9V
9V
5.9
5.9
0.1
0.1
-0.1
5.9
5.2
3.1
6.6
2.5
0.1
2.5
1.8
5V
0.4
AUDIO
VIDEO
VIDEO
VIDEO
(PB)
VIDEO
VIDEO
VIDEO(PB)
AUDIO
R
G
B
R
G
B
123456789101112131415161718192021222324
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
124
3
1
2
3
4
5
6
1234
5 6 7 8
S
1 2 3
456
1
2
3
4
5
6
7
1 2 3 6 7 84
1
2
3
4
5
6
7
9V
30V5VSCL
SDAASRF AGC
VIF9VAFT OUT
GND
R OUT
L OUT
NCNCNCNCNC5VDET OUT
PLL-SWNCNCNCSCL
SDA
NC
1
3
4
5
6 8
9
2
10
11
S
2
3
4
6
7
8
9 10
11
12
13
14
15
16
17
18
1
1
2
3
4
5
6
123456789
101112
13
1 2
3
4
V
1
2
123
4
1
2
3
4
5
12345
HV1
4
2
3
6
5
11
13
9
8
7
FV
10
14
G2
1
2
3
1 2 3 4 5 6 7
S
1 2 3 4 5
OCP/FB
SDVIN
GND
1 2
3
4
E
C
B
1 2
3
4
1234567
8
1
2
3
4
5
1
234
5
IO
G
123456789
1011121314151617181920
21
1
2
3
1 2 3
IO
G
R101
C102
C104
R102
L101
L102
R105
R106
R107
L103 L104
C113
C117
L107
C118
R123
C119
R124
R603
R606
C609
C610
C614
R616
R630
FB608
R638
FB609
FB610
R646
R648
C641
L602
C644
C501
R502
R503
R504
C502
R507
R508
R509
C504
C505
R512
C508
R514
C510
R516
R517
R518
C805
C817
L807
C818
C820
C828
R835
R836
C302
C304
R303
C310
R304
C312
R306
R308
R320
C317
C319
C326
R334
R337
R338
R340 R341
R342
R343
C330
C331
IC103
IC501
CN801
R614
C636
R317
R330
C318
C320
C322
C323
R331
R311
R319
R318
R315
R313
C308
C313
R327
R336
R513
C509
L302
C639
R636
C615
C108
C110
C602
C607
FB602
FB603
C638
R644
R312
FB606
R627
C603
C604
R605
R629
C648
D614
C627
D607
C321
R314
R316
R333
R321
C823
R506
IC608
R653
C642
R623
C631
R641
R632
R647
C651
FB612
R117
R660
R661
C634
C647
R803
R806
C507
C628
R618
C327
C306
C307
CN302
R126
R127
C650
R624
L301
FB611
L106
L108
CN601
CN604
D622
X301
X302
J101
RY601
RY602
R826
R665
R666
C617
C601
R601
L601
C621
C622
R655
R657
D631
C606
R505
R811
C809
R809
R817
C813
R827
R828
R815
C824
C810
R821
L804
C807
L805
L801
C801
S801
C808
R832
C812
CN303
CN301
C106
C111
C114
R103 R104
R109
R110
R114
R115
R116
IC602
R671
IC601
JL1
JL2
JL3
JL4
JL5
JL6
JL7
JL8
JL9
JL10
JL11
JL12
JL13
JL14
JL15
JL16
JL17
JL18
JL19
JL20
JL21
JL22
JL23
JL24
JL25
JL26
JL27
JL28
JL29
JL31
JL33
JL34
JL35
JL36
JL37 JL38
JL39
JL40
JL41
JL42
JL43
JL44
JL45
JL46
JL47JL48 JL49
JL50
JL51
JL52
JL53
JL54
JL55
JL57
JL58
JL59
JL60
JL61JL62
JL63 JL64
JL65
JL66JL67
JL68
JL69
JL70
JL71
JL72JL73
JL74JL75
JL77
JL78 JL79
JL80JL81
JL82 JL83
JL84JL85
JL86
JL87
JL88
JL89
JL90 JL91
JL92
JL93
JL94
JL96
JL97
JL98
JL99
JL100
JL101
JL102
JL103
JL104
JL105 JL106
JL107
JL108
JL109
JL110 JL111
JL112
JL113
R519
R108
C632
C625
R667
C645
C657
C658
C611
L105
L803
C620
R118
R125
R626
L808
R515
R609
R670
R669
R649
C618
C640
R604
R664
L603
R608
R633
R611
R620
R635
R656
R658
R619
R622
R823
C616
D604
R651
R631
JW902
C659
CN603
R825
R819
R837
R613
C803
R807
C819
C821
C825
R510
D621
R307
R309
C309
R672
R662
R663
D103
D632
R659
R673
C661
T802
R812
R816
R818
R801
R824
C814
C503
L809
R833
C655
R628
R645
R640
R652
R639
T604
C660
C608
R607
R621
R634
R675
C662
C623
D305 D307
T801
C311
C315
C316
C325
R677
R805
R808
R802
R111 R112
L501
C513
C802
C804
R822
CN602
D615
R615
TU101
D618
D620
R834 R830 R831R840
C635
C663
R617
FB620
FB102
FB101
CN605
R676
R349
R352
R353
R354
R355
C329
L303
R347
L605
FB601
JL95
JL116
JL117
JL114
JL115
JL118
R520
C514
C515
C816
R829
R357
R358
R359
R346
R351
C328
C826
R612
R637
RY603
R814
R322
R325
R328
R323
R326
R329
R113
C612
C646
C626
C827
PS601
PS602
PS603
PS604
D623
D805
D603
D613
D634
D630
D608
FB607
FB613
THP601
C314
L304
R360
L305
R350
JL128
JL127
JL126
JL119
JL120
JL121
JL122
JL123
JL124
JL125
C643
C619
JL56
R668
R674
R678
TP601
TP801
Q801
C605
R356
R650
TP602
C664
C665
R364
FB605
C806
FB604
C338
R332
C339
D301
D302
L604
Q101
IC101
Q305
R301
C301
D304
R324
D308
IC301
CN304
CN306
CN305
Q803
Q802
D810
D811
IC801
D802
D803
D806
Q503
D502
D501
D506
D801
D507
CN803
Q502Q501
Q304
Q302
Q301
Q303
PM601
Q606
D633
IC605
Q601
IC607
D624
D629
Q604
D628
Q602
PH601
D619
IC606
D606
D617
D625
D612
C630
D610
D609
D605
C624
T602
D601
Q609
Q608
Q607
Q605 D616
D626
Q610
D627
IC604
IC603
Q102
Q103
D101
D102
D611D602
D804
D807
D503
100
:HT
2.2
:FPRD
220
2W
:RS
10
1
4.7
10k
:CHIP
JW(5)
47µH
2.2k
:CHIP
2.2k
:CHIP
1k
:CHIP
1k
:CHIP
100
25V
1
220
16V
47
25V
47
25V
220
:CHIP
0.1
25V
F:CHIP
1k
:CHIP
1.2mH
47
25V
100k
:CHIP
100
:CHIP
100
:CHIP
100
:CHIP
100
:CHIP1k:CHIP
10
100
:CHIP
100
:CHIP
470p
B
10
1k
:CHIP
680
:CHIP
0.1
100V
:PT
10k
:CHIP
4.7k
:CHIP
0.047
200V
:PT
10k
:CHIP
1
6.8k
:CHIP
10k
:CHIP
2.2k
:CHIP
470p
B
0.01
F:CHIP
10k
:CHIP
100
:FPRD
33
160V
1.1UH
1.1UH
470p
B:CHIP
47
25V
100k
:CHIP
22k
:CHIP
47k
:CHIP
0.1
25V
F:CHIP
LA7840L
V-OUT
100
:FPRD
470p
B:CHIP
100
:CHIP
100 25V
0.01 F:CHIP
0.01 F:CHIP
0.01 F:CHIP
4.7k :CHIP
100
:CHIP
100
:CHIP
100 :CHIP
100 :CHIP
100 :CHIP
0.47
16V
B:CHIP
470 :CHIP
2.2k
:CHIP
4.7k
:CHIP
0.47
:MPS
18p
CH:CHIP
18p
CH:CHIP
1
1M
100
16V
100
16V
10
0.0047
B:CHIP
100
:CHIP
100
:CHIP
100
:CHIP
100
:CHIP
100
:CHIP
1k
47k
3W
:RS
1.8k
:CHIP
10k
:RN-CP
47
25V
47
25V
0.1 B:CHIP
0.1
B:CHIP
0.001
250V
E
0.001
250V
E
0.0015
2kV
1.1UH
1.1UH
1.1UH
10µH
:LAV35
10µH
:LAV35
10µH
:LAV35
10µH
:LAV35
10µH
:LAV35
0.001
250V
E
0.001
250V
E
0.1
25V
B:CHIP
1.1UH
8.2M
1W
0.1
1/2W
:RF
0.47
:FPRD
1k
:CHIP
1SS119
0.001 500V B
1SS119
0.1
25V
F:CHIP
100 :CHIP
100 :CHIP
2.2M
:CHIP
100 :CHIP
220p
2kV
B
100k
:CHIP
PQ09RD11
9V-REG
TK11819MTL
DC-DC.CONVERTER
5.6k
:RN-CP
0.01
630V
:PP
4.7k
:CHIP
0.001
CH:CHIP
0.001
B:CHIP
22
0.001
CH:CHIP
0
:CHIP
10k
:CHIP
4.7
:FPRD
220
:CHIP
220
:CHIP
680
:CHIP
470p
CH:CHIP
0.0047
B:CHIP
220p
CH:CHIP
0.22
100
:HT
8P
1.2k
:CHIP
1k
:CHIP
10k
:CHIP
470
:CHIP
0.68
1/2W
:FPRD
0.68
1/2W
:FPRD
0.01
250V
:PP
5P
:VH
1P
:TAB
1SS119
JW(5)
10µH
:LAV35
10µH
:LAV35
JW(5)
22
1/2W
4.43
3.58
10k
:CHIP
33k
:CHIP
2.2k
:CHIP
0.01
F:CHIP
10k
:CHIP
100k
:CHIP
0.0047
500V
E
6.8
:FPRD
1
250V
0.0047
200V
:PT
2.7k
1/4W
:FPRD
6P
:DY
1k
2W
:RS
0.022
200V
0.47
1/4W
:FPRD
100
16V
22
16V
22
16V
0.001
CH:CHIP
0.1
25V
F:CHIP
1M
:CHIP
100
:CHIP
22k
:CHIP
22k
:CHIP
47k
:CHIP
68k
:CHIP
4.7k
:CHIP
3.3k
220
:CHIP
2.2k
:CHIP
1.2k
:CHIP
47µH
:LHL08
15µH
4.7mH
:LHL08
470
25V
4.7
2W
:RS
330
:RN-CP
220p
B:CHIP
680k
1/2W
33k
1/2W
15k
:CHIP
15k
:CHIP
15k
:CHIP
15k
:CHIP
15k
:CHIP
15k
:CHIP
10k
:CHIP
10k
:CHIP
10k
:CHIP
10k
:CHIP
10k
:CHIP
100
1/2W
:FPRD
100k
:CHIP
D1N20R
47
25V
0.047
B:CHIP
0.0022
1kV
:R
47
25V
680p
B:CHIP
47
25V
47
25V
100
160V
47
25V
47
25V
0.0022
1kV
:R
0.1
250V
560p
2kV
B
0.01
1.2kV
47
160V
21P
13P
3P
ERC04-06S
1SS119
PQ05RD11
5V-REG
PQ09RD11
9V-REG
7.5MM
10µH
10µH
:NSL0808
220µH
10mH
:LHL10
470µH
75
:CHIP
220
:CHIP
1k
3W
:RS
1.2k
:FPRD
22M
1/2W
33
:CHIP
33
:CHIP
470k
1/4W
:RN
100k
1/2W
2.2k
:CHIP
1.2k
:RN-CP
JW(7.5)
15k
:CHIP
4.7k
:CHIP
22
450V
2P
15k
:CHIP
0.01
B:CHIP
0.01
B:CHIP
0.001
:CHIP
1SS119
18µH
:LAV35
1M
:CHIP
22k
:CHIP
220
220
JW(5)
220
:CHIP
270k
:RN-CP
33k
:RN-CP
27k
:RN-CP
18k
:RN-CP
33k
:RN-CP
1
:FPRD
1k
:CHIP
5.6k
:RN-CP
3.3k
:CHIP
680
:CHIP
1.8k
:CHIP
STB
470
25V
0.68
250V
0.82
250V
1000
25V
220
25V
10
1k
:CHIP
220
15k
:RN
2.2k
:CHIP
47µF
25V
47µF
25V
47µF
25V
47µF
25V
100
25V
1SS1191SS119
47µH
:LHL08
0
:CHIP
1k
:CHIP
100
:CHIP
10
1W
:RS
HLT
47
25V
330
:FPRD
2P
:MINI
1SS119
0.56 2W :RS
470
25V
470
25V
56k
1/2W
:RN
D1NL20U
D1NL20U
18
3W
:RS
18
3W
:RS
18
3W
:RS
1.1UH
0.01
500V
E
100
25V
1.1UH
1.1UH
1.2
10W
:RB
12
2W
:RS
1k
:CHIP
68p
CH:CHIP
5P
BLACK
:S-MICRO
1.1UH
10µH
56µH
0
:CHIP
470
:CHIP
470
:CHIP
470
:CHIP
470
:CHIP
JW(10)
10mH
47k
:CHIP
0.01
F:CHIP
10
250V
470p
4.7k
10k
:CHIP
0.0047
200V
:PT
4.7
1/2W
:FPRD
68k
:CHIP
DG5D1
150k
:RN-CP
1.2k :CHIP
1.2k :CHIP
1.2k :CHIP
560 :CHIP
560 :CHIP
560 :CHIP
10k
:CHIP
2.2k
:CHIP
2.7k
:CHIP
10k
:CHIP
1k
:CHIP
2200
25V
2200
25V
3300
25V
0.047
630V
:PP
MTZJ-T-77-10
MTZJ-T-77-5.1C
MTZJ-T-77-6.8A
MTZJ-T-77-6.8A
MTZJ-T-77-39
MTZJ-T-77-18B
MTZJ-T-77-18B
JW(5)
JW(5)
2.7A
2.7A
2.7A
2.7A
NX4001
3.3
10
16V
1000
1
3W
:RS
18k
:CHIP
0.001 500V B
5.6k
3W
:RS
5.6k
3W
:RS
10
16V
:BP
0.001
250V
E
JW(5)
JW(5)
1k
:CHIP
8.2k
5W
:RS
0.22
2W
:RS
0.22
2W
:RS
2SK2251-01
PINOUT
1k
:CHIP
1.0
10W
:RB
22k
:CHIP
MTZJ-T-77-5.6
MTZJ-T-77-5.6
560
450V
100
25V
100
25V
0.1
25V
F:CHIP
100
25V
470p
500V
JW(5)
JW(5)
680
:CHIP
1mH
:LHL13
2SC2412K
BUFFER
2SB709A
BUFFER
2.2k
:CHIP
4.7
MTZJ-T-77-9.1
PROTECT
100
:CHIP
MTZJ-T-77-3.9B
CXA2130S
Y/C/J
7P
:MICRO
6P
WHT
:S-MICRO
7P
WHT
:S-MICRO
2SK1482-T
H-DRIVE
2SC5388
H-OUT
ERC06-15S
DUMPER
RGP15GPKG23
DUMPER
NJM2903D
PIN-COMP
1SS119
RGP10GPKG23
1SS119
DUMPER
2SC2412K
H.V AFC
COMP
MTZJ-T-77-5.6
PROTECT
MTZJ-T-77-18B
PROTECT
RGP10GPKG23
200V-RECT
RGP10GPKG23
+13V-RECT
RGP10GPKG23
-13V-RECT
5P
RED
:S-MICRO
2SC2412K
V-PROTECT
UN2211-TX
V-PROTECT
2SD601A
VM SW
2SC2412K
BUFFER
2SC2412K
BUFFER
2SC2412K
BUFFER
PM-21
OCP/OVP PROT
2SC2412K
PROTECT-DRIVE
1SS119
SI-3120CA
13.2V-REG
2SC2412K
RY-DRIVE
SE-135N
+135V-RECT
MTZJ-T-77-6.8A
BIAS
1SS119
BIAS
2SC2412K
REG-DRIVE
1SS119
SW
2SC2412K
REG-SW
PC123FY2
FEED BACK
D1NS4-TR
PROTECT
STR-F6656
SWITCHING REG
D1NL20U
RECT
RU1P-V1
DUMPER
S3L20UF4
+7V-RECT
RU4AM-T3
+135V-RECT
2200p 1kV
D2L20U-F AUDIO-RECT
D2L20U-F MOTOR-RECT
EGP30DL-6085 +12V-RECT
0.001 500V B
SRT
D6SB60LF
AC-RECT
2SC2412K
DGC-DRIVE
2SC2412K
TV-DRIVE
2SC2412K
DRIVE
2SK2845
DRIVE
1SS119
DUMPER
ERA22-08
DUMPER
2SC2412K
DRIVE
D1NS6
+5V-RECT
PQ30RV11
5V-REG
µ
PC2406AHF
6V-REG
2SC2412K
BUFFER
2SC2412K
BUFFER
MTZJ-T-77-9.1
PROTECT
MTZJ-T-77-9.1
PROTECT
ERC04-06S
AC-RECT
ERC04-06S
AC-RECT
GP08DPKG23
H-CENT
GP08DPKG23
H-CENT
GP08DPKG23
PUMPUP
1
4
2
1
2
1
2
1
4
3
2
1
2
1
1
2
3
4
6
123
456
5
*
*
*
*
*
RESET
H.DY+
H.DY+
H.DYH.DY-
V.DY+
V.DY-
-15V
VCCINOUT
REF
+15V
BOOST
200V
C
+B
ABL
+24V
+13V
-13V
200V
GND
H1
NC
9V
EW
IREF
GND1
APED
VD-
VD+
ABLIN
MONOUT
YCLAMP
VMOUT
BOUT
IKIN
AFCFIL
HD
SSCP
REG
XTAL1
XTAL2
XTAL3
(APCFIL)
(SECAM)
ABLFIL
SCL
SDA
GND2
EB-YIN
ER-YIN
EYIN
YUVSW
VCC
GOUT
ROUT
C1 IN
COMBY IN
HP/PROTECT
(VSAW)
COMBC IN
YS1
R1IN
G1IN
B1IN
YS2/YM
R2IN
G2IN
B2IN
V-IN
OSC
DK
T1
GND
V-OUT
TO JIG
VIDEO
R
B
GND
B.INT
SDA
SCL
GND
R
G
B
IK
AUDIO VIDEO
SW 5V
GND(M)
D 5V
GND(A)
VCC(SP)
GND(SP)
MTR 13.2V
A.C
NC
NC
AC NUET
GND
(MONO)
TV IN
VCR/FR IN
RE LINE L
TU V(TV)
TU AL(TV)
TV V
TV Y
GND(A)
TV C
RELAY OUT
RELAY IN
VMSW
VCR PWR
CRT PWR
H PLS
V PLSNSB INT
SCL 1
SDA 1
DGC SW
YM/YS
OVP
OSD B
OSD G
OSD R
AFT 0(TV)
GND
+B
GND
9V
VM OUT
VM SW
Y1 IN
RE LINE V
NCNCNCNCNC
SW 9V
PLL SW
NICAM
VC
CHECK
CHECK
DGC
DGC
NC
NC
RESET Q
R
C
L
NC
GND
9V
STBY5V
NS
12V
DGC
H.DY H.DYV.DY V.DY
DY
TO F BOARD
CN903
TO MA10(1/3)BOARD CN001 TO MA10(1/3)BOARD CN1003 TO MA10(1/3)BOARD CN002
CN701
TO CV BOARD
TO CV BOARD
CN961
CN503
TO CV BOARD
A
TUNER,Y/C/J,HV DEFLECTION,
POWER SUPPLY
TO CV BOARD
CN703
TO CV BOARD
TO CV BOARD
CN704
J701(G4)
HV
TO
PICTURE TUBE
TO F BOARD
CN902
DGC
B-SS8848<HK.>-A..
ABOARD : IC103 TK11819M
1
2
3
4
6
5
MOTIVE
OSC
FEEDBACK
CONTROL
GND
DK
V OUT
T1
V IN
OSC
V REF
ABOARD : IC501 LA7840L
1
2
3
4
5
6
7
AMP
+
–
THERMAL
PROTECTION
PUMP
UP
GND
Ver. OUTPUT
OUTPUT STAGE Vcc
NON INV. INPUT
INVERTING INPUT
Vcc
PUMP UP OUT
ABOARD : IC606 STR-F6614
3
2
1
5
4
+
–
+
–
V IN
START
Iconst
REG.
T.S.D
O.V.P
LATCH
O.S.C
DRIVE
Vth(1)
Vth(2)
Comp2
Comp1
R4
R3
R1
C1
D
S
O.C.P/F.B
GND
R2
Rconst–Rconst
+
A BOARD
*
mark LIST
Ref No. KV-VF21M77 KV-VF21M40/M70
D103 1SS119 Not used
IC101 S-80743AL-Z Not used
R118 Not used 0 : CHIP
R125 0 : CHIP Not used
TU101 BTF-WG441 BTF-LG443
2
1
1
2
A BOARD WAVEFORMS
2
1
6
3
4
6
7
5
9
7
8
10
8
12
16
18
19
20
1.0Vp-p (H) 1.0Vp-p (H)
1.4Vp-p (H)
1.0Vp-p (H) 1.0Vp-p (H)
1.4Vp-p (H)
1.4Vp-p (V) 1.4Vp-p (V)
7.0Vp-p (H)
3.0Vp-p (H) 3.2Vp-p (H)
3.0Vp-p (H)
3.4Vp-p (H) 3.0Vp-p (H)
3.4Vp-p (H)
2.6Vp-p (H) 3.6Vp-p (H)
3.6Vp-p (H)
4.0Vp-p (H) 6.0Vp-p (H)
14.0Vp-p (H)
1.4Vp-p (V) 54.0Vp-p (V)
1100Vp-p (H)
150Vp-p (H) 5.5Vp-p (V)
54.0Vp-p (V)
11
17
15
14
13
PAL/SECAM
NTSC
NTSC
PAL/SECAM
NTSC
PAL/SECAM
PAL
SECAM
PAL
SECAM
NTSC
NTSC
Loading...