Read Sony KV-G21L3 Service Manual online
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KV-G21L3
RM-883
KV-G21L3
RM-883
KV-G21L3
RM-883
SECTION 6
DIAGRAMS
59
60
38
9
41
40
36
35
34
3
6
56
54
12
L/H
U/V
VC
AGC
KEY1
KEY2
RESET
EXTAL
XTAL
TIMER
RESP/
IICLK0
IIDAT0
BLK
NICAM
VC AMP
Q109
Q110
VC FILTER
Q108
AGC MUTE
AGC
TU
U/V
L/H
51
50
49
42
47
25
55
53
26
17
48
27
R
G
B
BRT ABL
HSYNC
HSYNC
IICLK1
IIDAT1
SIRCS
VPULSE
VSYNC
HDSW
IC001 µ-COM
Q303
G BUFFER
5
6
IC003 MEMORY
1
2
IC004 IR DET
+5V
S901
S902
S903
S904
S905
PROG+
PROG–
VOL+
VOL–
TV/VIDEO
5
4
IC002 +5V REG
1
+9V
+5V
X101
Q902
LED
DRIVE
DRIVE
LED
Q903
+5V
TIMER
D901
NICAM
ST/BY
SWF401
Q402
IF BUFFER
IF
TU101
L OUT
VCC 2
VCC 1
5
8
4
IC203
AUDIO OUT
Q1207, 1208
BUFFER
L SP MUTE
Q210
VIDEO
L (MONO)
J1201 (2/2)
CN251
SP L
J251
EARPHONE
MONITOR
OUT
A
SYS CONTROLLER, TU, MEMORY
IF, Y/C JUNGLE, H/V OUT
POWER SUPPLY
AUDIO/VIDEO INPUT
IF, Y/C JUNGLE, H/V OUT
POWER SUPPLY
AUDIO/VIDEO INPUT
18
19
20
21
48
49
54
41
34
35
26
IF IN
IF IN
AGC OUT
SSCP/FBT
3.58
4.43/3.58
BLK
SCL
7
8 SDA
30
29
38
39
31
32
22
50
B-Y
R-Y
CVBS SW OUT
BLK/STC
B-Y
R-Y
ABL
EHTX-RAY
IC300
BUS CONTROL
X443
4.43MHz
X358
3.58MHz
12
11
5
14
16
IC351 1HDL
TV PROCESSOR
IF OUT
SIF IN
6
1
BUFFER
Q030
Q801
H DRIVE
3
1
PIN AMP
IC801 (2/2)
Q821
PIN OUT
IC801 (1/2)
PIN AMP
7
5
6
IC551 V OUT
2
4
Q802
H OUT
L804
DUMPER
D802
S801
H CENT
FV
HV
+135V
–13V
+15V
T851 FBT
Q561
X RAY
+135V
D561
D591
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
10
9
8
3
J701
6
1
2
4
1000V
200V
H1
CN701
G2
RV701
C (RGB OUT)
T601 SRT
+16V
+11V
+B
AC-RECT
S601 POWER
F601
1
2
DRIVE
LATCH
OVP
OSC
9
8
6
7
2
1
3
4
IC603 PHOTO COUPLER
1
2
IC602 ERROR AMP
IC601 REG IC
CN601
AC IN
HDY
VDY
H+
H–
V+
V–
DY ASS'Y
IK
B
G
R
+7V
Q202
MUTE
MUTE 11
40
45
46
47
HOR OUT
EAST/WEST
VERT POS
VERT NEG
AUTO
MANUAL
TV SYS
SELECT
COL SYS
PROGR
PROGR
R
G
B
IK
1
4
2
7
9
10
5
6
11
13
17
16
15
14
13
11
2
3
4
5
8
7
T605 LFT
1
2
T801
H2
V901
PICTURE TUBE
6
5
7
1203
VIDEO
L (MONO)
IN 1
VIDEO
(FRONT)
(REAR)
VIDEO
IN 1
L (MONO)
VIDEO
17 CVBS IN
3
5
7
IC1211 L-SW
IC1210
BUFFER
CLK
DAT
R-Y
B-Y
SYNC
R-Y
B-Y
IN
OUT
RESET
55 DEEMP
AUDIO
Q1209
B/G SW
Q414
Q406, 408
Q409
CT55,CF55
CT55,CF55
SYNC
FILTER
13
CVES IN
SYNC
FILTER
+
–
–
Q1201, 1202,
VIDEO BUFFER
TV
V1
STBY-SW2
Q207
STBY-SW1
Q208
STBY 30
J1201 (1/2)
J1202
BUFFER
Q1204
1
2
6
5
4
1
D1504
D601
1
2
3
4
5
6
AMP
+9V
REG
+9V
IC521
6-1. BLOCK DIAGRAMS
6-2. CIRCUIT BOARDS LOCATION
6-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS
Note:
•
All capacitors are in µF unless otherwise noted.
•
All electrolytic capacitors are rated at 50V unless otherwise noted.
•
All resistors are in ohms.
k = 1000 , M = 1000k
k = 1000 , M = 1000k
•
Indication of resistance which does not have rating electrical
power is as follows.
power is as follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
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.
unless otherwise noted.
•
Readings are taken with a color-bar signal input.
no mark
no mark
: PAL
( )
: SECAM
[ ]
: NTSC 3.58
« »
: NTSC 4.43
•
Readings are taken with a 10 M digital m ultimeter.
•
Voltage is dc with respect to ground unless otherwise noted.
•
Voltage variations may be noted due to normal production toler-
ances.
ances.
•
All voltages are in V.
•
: Cannot be measured.
•
Circled numbers are waveform reference.
•
: B + bus.
•
: B – bus.
•
: signal path.
Reference information
RESISTOR
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.
*
C
A
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