– 26 – – 27 –– 25 – – 28 –
KV-G21MW3/G21QW3
RM-869
KV-G21MW3/G21QW3
RM-869
KV-G21MW3/G21QW3
RM-869
KV-G21MW3/G21QW3
RM-869
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM
5-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS
Reference information
RESISTOR : RN METAL FILM
: RC SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RS NONFLAMMABLE METAL OXIDE
: RB NONFLAMMABLE CEMENT
: RW NONFLAMMABLE WIREWOUND
: * ADJUSTMENT RESISTOR
COIL : LF-8L MICRO INDUCTOR
CAPACITOR : TA TANTALUM
: PS STYROL
: PP POLYPROPYLENE
: PT MYLAR
: MPS METALIZED POLYESTER
: MPP METALIZED POLYPROPYLENE
: ALB BIPOLAR
: ALT HIGH TEMPERATURE
: ALR HIGH RIPPLE
Note: The component identified by shading and
mark ! are critical for safety. Replace only
with part number specified.
Note:
• All capacitors are in µF unless otherwise noted.
• All electrolytic capacitors are rated at 50V unless otherwise noted.
• All resistors are in ohms.
kΩ = 1000Ω, MΩ = 1000kΩ
• Indication of resistance which does not have rating electrical
power is as follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
• : nonflammable resistor.
•
¢ : internal component.
• : panel designation or adjustment for repair.
• All variable and adjustable resistors have characteristic curve B
unless otherwise noted.
• Readings are taken with a color-bar signal input.
no mark : PAL
( ) : SECAM
[ ] : NTSC 3.58
« » : NTSC 4.43
• Readings are taken with a 10 MΩ digital multimeter.
• Voltage is dc with respect to ground unless otherwise noted.
• Voltage variations may be noted due to normal production
tolerances.
• All voltages are in V.
•
∗ : Cannot be measured.
• Circled numbers are waveform reference.
• : B + bus.
• : B – bus.
• : signal path.
÷
C
A
5-2. CIRCUIT BOARDS LOCATION
59
60
38
41
40
36
35
34
3
6
56
54
L/H
U/V
VC
KEY1
KEY2
RESET
EXTAL
XTAL
TIMER
RESP/
IICLK0
IIDAT0
NICAM
VC AMP
Q109
Q110
VC FILTER
Q108
BUFFER
AGCTU U/V L/H
50
42
47
25
55
53
26
7
8
17
48
27
G
BRT ABL
HSYNC
HSYNC
IICLK1
IIDAT1
SIRCS
TSW0
TSW1
VPULSE
VSYNC
HDSW
IC001
Q303
G BUFFER
5
6
IC003 MEMORY
1 2
IC004 IR DET
+5V
S901
5
4
IC002 +5V REG
1
+9V
+5V
X101
Q902
LED
DRIVE
DRIVE
LED
Q903
+5V
TIMER
D901
NICAM
ST/BY
Q403, 404
FILTER
SWF401
Q402
IF BUFFER
IF
TU101 TUNER
L OUTL IN 511
IC203
AUDIO OUT
Q1207, 1208
BUFFER
L MUTE
Q1265
L SP MUTE
Q210
VIDEO
L (MONO)
J1201
CN251
SP
J251
EARPHONE
MONITOR
OUT
A
TUNER, IF, Y/C JUNGLE,
SECAM DECODER, H/V OUT
SYSTEM CONTROLLER, MEMORY
AUDIO/VIDEO IN/OUT, POWER SUPPLY
18
19
20
21
48
49
54
41
34
35
IF IN
IF IN
AGC
SSCP/FBT
3.58
4.43/3.58
SCL
7
8
SDA
30
29
33
38
39
31
32
22
50
B-Y
R-Y
SECAM
CVBS OUT
BLK/STC
B-Y
R-Y
ABL
EHTX-RAY
IC300
Y/C JUNGLE
X443
4.43MHz
X358
3.58MHz
1
19
12
11
IC354 SECAM
12
11
5
14
16
IC351 1HDL
IF OUT
SIF IN
6
1
H PROT
Q030
Q801
H DRIVE
3 1
PIN CONT
IC801 (2/2)
Q821
PIN OUT
IC801 (1/2)
PIN CONT
7
5
6
IC551 V OUT
24
Q802
H OUT
L804
DUMPER
D801, 891
S801
H SENT
FV
HV
+135V
–13V
+15V
T851 FBT
Q561
X RAY
+135V
D561D591
Q1513
V SAW
D1505
H+
H+
H–
H–
V–
V+
DY1
2
1
4
200V
1000V
H1
CN851
CN103 CN703
6
5
4
1
Q712
Q711
Q710
Q706
Q705
Q704
R DRIVE
G DRIVE
B DRIVE
R AMP
G AMP
B AMP
Q709
Q708
Q707
IK LIMIT
IK LIMIT
IK LIMIT
R
G
B
IK
12
11
10
5
J701
1
8
1
2
4
1000V
200V
H1
CN701
G2
RV701
C (RGB OUT)
T601 SRT
+18V
+11V
+B
1
2
DRIVE LATCH
OVP
OSC
9
8
6
7
21
34
IC603 PHOTO COUPLER
12
IC602 ERROR AMP
IC601 REG SW
HDY
VDY
H+
H–
V+
V–
DY ASS'Y
IK
B
G
R
+7V
Q202
MUTEMUTE
11
40
45
46
47
HOR OUT
EAST/WEST
VERT POS
VERT NEG
R
G
B
IK
2
4
1
7
9
10
5
6
11
13
17
16
15
14
13
11
3
4
5
8
7
T801
H2
V901
PICTURE TUBE
6
5
7
Q1201
VIDEO
L (MONO)
IN 1
VIDEO
(FRONT)
(REAR)
VIDEO
IN 1
L (MONO)
VIDEO
11 CVBS IN EXT
3
5
7
IC1211
IC1210
17
LUMA IN
BUFFER
CLK
DAT
B-Y
R-Y
S REF
SYNC
R-Y
B-Y
SYNC
R-Y
B-Y
IN
OUT
RESET
55 DE
FILTER
SYNC
SYNC
FILTER
SYNC
FILTER
KV-G21MW3
only
KV-G21MW3
only
CT45,CF45
Q405
Q407
CT60,CF60
Q410
CT65,CF65
Q413, 411
Q415, 412
Q418, 416
DK SW
I SW
M SW
7
8
2
1
3
4
A
B
DK
I
M
B/G
IC401
TV
SYSTEM
SELECTOR
B/G SW
Q417, 414
Q406, 408
Q409
CT55,CF55
SYNC
FILTER
13CVBS IN INT
SYNC
FILTER
+
–
Q1209
BUFFER
AUDIO SW
SYSTEM CONTROLLER
KV-G21DK2
CH +
CH -
S902
VOL -
S904
VOL +
S903
TV/VIDEO
S905 S906
SEL
1
2
4
3
6
5
ONLY
BUFFER
Q1202
+9V
REG
+9V
IC521
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