– 30 – – 31 – – 32 –– 29 –
KV-G21MW3/G21QW3
RM-869
KV-G21MW3/G21QW3
RM-869
KV-G21MW3/G21QW3
RM-869
KV-G21MW3/G21QW3
RM-869
A
123456789101112
13
B
C
D
E
F
G
H
I
J
[SYSTEM CONTROLLER, Y/C JUNGLE, DEFLECTION,
TUVIF, FRONT AMP, POWER SUPPLY]
– A Board –
A
PRINTED WIRING BOARD
A BOARD
IC
IC001 D-11
IC002 E-10
IC003 E-10
IC004 I-13
IC005 E-10
IC100 E-7
IC102 E-7
IC201 B-7
IC203 B-10
IC300 B-4
IC351 D-8
IC354 D-7
IC401 B-7
IC521 E-8
IC551 J-6
IC601 J-8
IC602 H-7
IC603 H-7
IC801 G-6
IC1210 A-2
IC1211 B-3
Q001 F-7
Q002 C-10
Q030 C-12
Q031 C-8
Q108 D-2
Q109 E-12
Q110 E-3
Q201 B-10
Q202 C-9
Q207 B-10
Q208 B-10
Q209 B-9
Q210 B-9
Q212 B-11
Q300 C-10
Q301 C-7
Q302 D-7
Q303 D-7
Q401 D-2
Q402 D-4
Q403 E-4
Q404 E-4
Q405 C-6
Q406 B-7
Q407 B-6
Q408 C-7
Q409 C-6
Q410 B-6
Q411 C-6
Q412 C-5
Q413 B-5
Q414 C-5
Q415 B-5
Q416 B-5
Q417 B-6
Q418 B-5
Q561 I-6
Q601 G-11
Q801 D-2
Q802 F-1
TRANSISTOR
Q821 E-6
Q902 D-10
Q903 D-11
Q1201 A-3
Q1202 A-3
Q1203 A-2
Q1204 B-2
Q1205 B-3
Q1206 A-2
Q1207 A-2
Q1208 B-2
Q1209 C-4
Q1264 C-1
Q1265 C-1
Q1513 G-6
DIODE
D001 D-9
D002 C-12
D003 C-10
D004 E-12
D005 E-8
D006 H-13
D007 E-10
D008 H-13
D101 C-9
D102 C-9
D103 D-1
D200 A-10
D201 B-9
D202 C-9
D251 B-8
D252 F-11
D253 C-9
D300 D-4
D301 D-8
D302 C-8
D304 C-8
D305 D-7
D306 E-6
D307 D-5
D308 C-10
D309 D-6
D310 D-9
D311 D-9
D312 C-5
D315 E-5
D351 E-8
D399 E-5
D401 E-4
D402 C-5
D403 C-9
D513 G-6
D551 J-5
D561 G-5
D562 F-6
D581 H-5
D582 I-5
D591 I-5
D600 F-9
D601 H-12
D602 G-11
D603 G-11
D604 G-7
D605 G-8
D606 G-8
D607 I-8
D609 J-9
D610 H-8
D611 I-7
D613 E-9
D614 E-10
D615 E-10
D801 F-2
D802 F-2
D803 D-9
D820 G-6
D821 G-7
D851 I-4
D852 H-4
D853 J-3
D855 J-4
D857 F-3
D858 F-4
D860 E-2
D901 H-13
D1201 A-2
D1202 B-1
D1203 B-2
D1204 A-2
D1205 C-1
D1206 C-2
D1207 B-2
D1208 B-2
D1209 B-3
D1504 G-6
D1505 G-6
5.0Vp-p 2.7Vp-p
PAL/SECAM NTSC PAL/SECAM
2.9Vp-p (H)
NTSC
PAL/SECAMNTSC
2.3Vp-p (H)
2.7Vp-p (H)
NTSCSECAMPAL
2.4Vp-p (H)2.2Vp-p (H)2.2Vp-p (H)
PAL SECAM
NTSC
0.9Vp-p (H) 1.3Vp-p (H)
1.0Vp-p (H)
1.5Vp-p (V)1030Vp-p149Vp-p
PA L
0.7Vp-p (H)
PA LNTSCSECAM
0.5Vp-p (H)1.3Vp-p (H)0.7Vp-p (H)
SECAM NTSC PAL/SECAM
0.6Vp-p (H) 1.0Vp-p (H) SECAM :
PAL : 1.4Vp-p (H)
1.3Vp-p (H)
SECAMPA LNTSC
1.5Vp-p (H) 1.2Vp-p (H)
NTSCSECAMPA L
1.3Vp-p (H)0.7Vp-p (H)0.7Vp-p (H)
PAL SECAM
NTSC
1.0Vp-p (H)
0.6Vp-p (H)0.5Vp-p (H)
1 2 333 4
4 4 5566
77889
9
10 1110 1110
11 12 12 12 13 13
13 14 15 16
1.1Vp-p (H)
2.5Vp-p (H)2.8Vp-p (H)
2.6Vp-p (H)PAL :
SECAM :SECAM :
PAL : 2.7Vp-p (H)
2.9Vp-p (H)
6
1.0Vp-p (H)
NTSC
A BOARD WAVEFORMS
SIGNAL
CLAMPING
LINE
MEMORY
SAMPLE-
AND-
HOLD
LP
±(R-Y)
16
11
±(R-Y)
±(B-Y)
12
14
±(B-Y)
LP
HOLD
AND-
SAMPLE-
MEMORY
LINE
CLAMPING
SIGNAL
pre-amplifiers
addition
stages
output
buffers
colour-difference
output signals
SANDCASTLE
DETECTOR
DETECTOR
PHASE
FREQUENCY
9
analog supply
5
colour-difference
input signals
V
P1
sandcastle
pulse input
DIVIDER
BY 192
LP
5MHz
CCO
DIVIDER
BY 2
1
digital supply
10
GND1
3 4, 8
GND2
2n.c.
n.c.6
n.c.13
n.c.15
3MHz shifting clock
7 i.c.
TDA4665
P2
V
AGC FOR IF
· TUNER
54
53
TUNER
T.D .P.
· DEMODULATOR
VIF AMPLIFIER
49
48
AFC · S/H VIDEO AMPL.
POL
VIDEO IDENT
IDENT
AFC
POL
VIDEO MUTE
MUTE
SW
CVBS-SWITCH
13 17
SOUND
TRAP
6
SVHS-SWITCH
SW
10
ChrCVBS Y
11
S-VHS
38
CVBS OUT
TRAP
BAND-
PASS
PAL / NTSC
DECODER
4.4 3.6
36 35 34
SECAM REF.
3316
HUE
FILTER
TUNING
30 29
R-Y
B-Y
REF
DELAY ·
PEAKING
G-Y MATRIX ·
SAT. CONTROL
R-Y
B-Y
32 31
TDA 4661
SAT
OUT IN
Y
28 27
· OUTPUT
RGB-MATRIX
26
BL
25
B
24
G
· SWITCH
R
23
RGB-INPUT
21
20
19
R
G
B
22
BEAM DUPR.
BACK-
STABILISER
CONTR
BRI
WHITE P.
BL. CURRENTCURRENT
18
VERTICAL
GEOMETRY
51
52
46
47
V-OUT POS.
V-OUT NEG.
EW-
GEOMETRY
45
50
EW-DRIVE
EHT
H/V DIVIDER
SYNC SEP.
· 1st LOOP
SEPARATOR
VERT. SYNC
VCO ·
CONTROL
· HOR. OUT
2nd LOOP
42 41 39 40
HOR. DRIVEBV
44 14 9 5 12 37
12C-BUS
TRANSCEIVER
78
SCL SDA
CONTROL DAC 's
17 x 6-BIT 's
2 x 4-BIT 's
IF-IN
4
3
REF
VOLUME
SWITCH
AUDIO
PRE-AMPL
FILTER
SIF-IN
115
255 56
OUTPUT
SOUND
EXT AUDIO IN
IC300 TDA46657-T
IC351 TDA8375A
NOTE:
The circuit indicated at left contains high voltage of over
600 Vp-p. Please pay attention when inspecting or repair-
ing it to prevent an electric shock.
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