CAPACITOR AND RESISTOR CODE CHART
CAPACITOR (Example)
500 C K 1500 B
D ........................... ±0.5pF
T ............................ +50%
–
10%
J ............................ ±5%
K ........................... ±10%
M ........................... ±20%
N ........................... ±30%
Characteristics
P ...........................
+100% –
0%
Value code
Z ........................... +80%
–
20%
Tolerance code
C ........................... ±0.25pF
Material code
C ........................... Ceramic
Voltage rating
E ........................... Electrolytic
F ........................... Polyester
N ........................... Polypropylene
T ............................ Tantalum
K ........................... Ceramic
H ........................... MT-Composite
P ........................... NP. Electrolytic
M ........................... MT-Polypropylene
RESISTOR (Example)
6 Y K 4.7
D ........................... ±0.5%
F ........................... ±1%
G ........................... ±2%
J ............................ ±5%
Value code
K ........................... ±10%
Tolerance code
M ........................... ±20%
Material code
F ............................ Fusible
Wattage rating
N ........................... Metalized Carbon
S ........................... Oxide Metalized
Y ........................... Wire Wound
C ........................... Solid
D ........................... Carbon Film
W .......................... Wire Wound
— 29 —
— 30 —
— 32 —
— 31 —
FOR CONTINUED PROTECTION AGAINST
A RISK OF FIRE, REPLACE ONLY WITH
THE SAME TYPE 4A, 125V FUSE.
ATTENTION: POUR MAINTENIR LA PROTECTION
CONTRE LES RISQUES D' INCENDIE UTILISER UN
FUSIBLE DE RECHANGE DE MEME TYPE 4A, 125V.
CAUTION
4A 125V
BLOCK DIAGRAM
17
42
41
40
39
25
3
27
OSD (R)
OSD (G)
OSD (B)
OSD (BLK)
RESET
POWER FAIL
POWER
ON/OFF
STANDBY MODE
5V
CONTROL
Q693,
Q695
Q635
OVERLOAD
PROTECT.
D612
PHOTO
COUPLER
IC601
POWER
REG.
Q681
12V SW
DRIVE
IC681
5V REG.
D601
FULL WAVE
RECTIFIER
Q605
ERR.
AMP.
Q604
OSC
Q601
SW.
T601
CONVERTER
TRANS.
LF601
LINE
FILTER
PS601
POSISTOR
RL601
RELAY
L901
DEGAUSING
COIL
AC120V
60Hz
F601
AC
FUSE
C601
+12V
D627
+16V
+130V
D621
D694
D624
D625
4A 125V
+12V
Q627
12V SW.
CVBS
28
27
26
25
OSD
SW.
RGB
OUT
CONT
BRITE
COLOR
DEMOD
SHARP
BPA
BLACK
STRETCH
DELAY
LINE
SYNC
SEP.
HORIZ.
DRIVER
BUS
INTERFACE
IC201
SIGNAL PROCESS
SDA 35
SCL 34
3
C 2
Y 4
46
6
H
V
BEAM
VOLTAGE
DETECT.
ABL-IN
MUTE
IN SELECT
OUT SELECT
S1-SW
S2-SW
MAIN AV 1/2
FIX/VAR
ACL
INT. VIDEO
SIF
A1901
RC PRE-AMP
SW1901-1906
CONTROL KEYS
BUS SCL
BUS SDA
AFT S-CURVE
IIC SDA
RC IN
KEY IN
X IN
X OUT
34
32
29
33
10
9
19
13
20
11
7 SC
3
2
12
EXT
. VIDEO
INT
. VIDEO
S CLOCK 3.58
16 14
15
9
1
30
38
2
1
IC801
CPU
WITH
CAPTION
DECODER
X 801
C809
C808
12
35
8
7
6
5
4
IC501
VERT.
OUTPUT
Q401
HORIZ.
DRIVE
T401
H-DRIVE
TRANS.
Q402
HORIZ.
OUTPUT
HOLD DOWN
DETECT.
19 H DRIVE
18 H PULSE
X RAY
22
23
24
HOLD DOWN
T402
HORIZ.
OUTPUT
TRANS.
H.V.
D481
+200V
DEFLECTION
YOKE
ABL
FOCUS
SCREEN
HEATER
V +B
LOW +B
4
6/7
11
9
3
8
1
V
H
2
H-PULSE
ABL
-R OUT
-G OUT
-B OUT
9
1
8
2
7
3
Q901
PIX TUBE
D483
+26V
(7V)
D429
D428
(16V)
R428
g7svm
ANODE LEAK
DETECT.
5 V SYNC
17 SC
E/W
Q340
14 V
11
IC002
AUDIO
AMP.
6
7
2
1
3
(L)
(R)
FIXED
AUDIO OUT
(L)
FIXED
AUDIO OUT
(R)
SP902
SPEAKER
(R)
SP901
SPEAKER
(L)
MUTE
Q001
Q005
11V
4
3
39
38
A
V
1/2 L
A
V
1/2 R
33 34
13
IC3401
MTS DECODER
A/V 1 IN
VIDEO IN
AUDIO IN (L)
AUDIO IN (R)
D482
5
L
R
Y
Y1 IN
C1 IN
S1 SW
C
S1 IN AV1
A/V 2 IN
VIDEO IN
AUDIO IN (L)
AUDIO IN (R)
S1/SW
13 V2 IN
5 C1 IN
2 Y1 IN
1 V1 IN
H
H
H
L
L
L
S2-SW 11
V2 14
MAIN AV 1/2 9
C1 4
S1-SW 10
V1/Y1 15
IC1001
SELECT V/Y + C1/C2
5
6
SDL
SCL
K1001
K1002
K1051
F R
F L
IC486
9V REG.
Q490
5V REG.
5V
ALWAYS
B9
12V
B4
9V
9
PCC
10
H-S
V-S
Q882
Q688
RELAY
DRIVER
5V
B6
D801
Q803
Q242
B P SELECT
COMB
FILTER
VIDEO
SWITCH
C1/C2
Q171
C Y
C1/C2
Q315
Q721
Q711
Q701
Q221
Q429
Q831
RESET
IC802
EEPROM
6
5
IIC SDA
31
ANT
A101 UHF/VHF TUNER
WITH VIDEO & AUDIO DET
14
18
4
5
16
SDA
SCL
VIDEO
SIF
AFT S-CURVE
MAIN TV/AV
PIP TV/AV
PIP TV/AV
21 1K
5
39 DVD U
38 DVD V
37 DVD Y
Q332
Q301 Q302
I
C
7
0
1
MAIN
AV 1/2
9
14
13 A
V2 L
12 A
V1 L
5 A
V1 R
3 A
V2 R
R A
V
1/2 R 4
IC1003
AUDIO
SELECT
L A
V
1/2 L 14
DVD-U
DVD-V
DVD-Y
PIP CVBS IN
Q8073
Q8083
Q8076
CVBS
IN
23
24 25
45
47
8
51 49
32
Q8005
Q8006
33
22
13
IC8001
PIP CONTROLLER
Q8090
SDA
SCL
C
Y
H-SYNC
V
-SYNC
Q8093
Q8097
C
Y
PIP
SYNC
IN
Y/V SELECT
PIP AV 1/2
PIP
TV/AV
CVBS PIP
11 14 10 4
9 15
IC1002
SELECT CVBS
FOR PIP
13 12 5
3
2 1
EXT.
V IN
FOR PIP
H
H
H
L
L
L
Q1097
Q1096
V2/Y2
V1/Y1
MODEL DS31820
Chassis No. 31820-00
SCHEMATIC DIAGRAMS
SERVICE NOTES:
1. When replacing parts on circuit boards, clamp the lead wires to terminals before soldering.
2. When replacing high wattage resistors on circuit board, keep the resistor body 10 mm (3/8) from circuit board.
3. Keep wires away from high voltage and high temperature components.
PRODUCT SAFETY NOTICE
THE COMPONENTS DESIGNATED BY A STAR (
★
) ON THIS SCHEMATIC DIAGRAM DESIGNATE COMPONENTS
WHOSE VALUES ARE OF SPECIAL SIGNIFICANCE TO PRODUCT SAFETY. SHOULD ANY COMPONENT
DESIGNATED BY A STAR NEED TO BE REPLACED, USE ONLY THE PART DESIGNATED IN THE PARTS LIST. DO NOT
DEVIATE FROM THE RESISTANCE, WATTAGE AND VOLTAGE RATINGS SHOWN.
X-RADIATION WARNING NOTE
THIS TV CONTAINS CRITICAL PARTS TO PROTECT AGAINST X-RADIATION. NOMINAL 2ND ANODE VOLTAGE IS
29.0KV AT ZERO BEAM CURRENT AT 120 VOLTS AC LINE, AND MUST NOT EXCEED 30.0KV UNDER ANY
OPERATING CONDITION. SEE HIGH VOLTAGE CHECK ON PAGE 9.
1
1
1
1
TOP VIEW
SIDE VIEW
COUNT TERMINALS IN
ARROW DIRECTION
MARK
E
C
B
A
K
A
K
A
K
A
K
A
K
A
K
INFRARED EMITTING
A....ANODE
K....CATHODE
INTEGRATED CIRCUITS
TRANSISTORS
1
DIODES
PHOTO COUPLERS
B ... BASE
C ... COLLECTOR
E ... EMITTER
E C
B
E C
B
E
C
B
E
C
B
E C
B
E
C
B
E C
B
E
C
B
3
2
1
3 2
1
GND
(2)
IN
(1)
OUT
(3)
1
1
TOP VIEW
1
CHIP TRANSISTORS
B
C
E
TOP VIEW
B ... BASE
C ... COLLECTOR
E ... EMITTER
CHIP RESISTORS
TOP VIEW
123
12 x 10 = 12K ohm
3
NOTES ON SCHEMATIC DIAGRAMS
1. All resistance values in ohms K=1,000 M=1,000,000.
2. Unless otherwise noted on schematic, all capacitor values less than 1 are expressed in µF (Micro Farad),
and the values more than 1 are in pF.
3. Unless otherwise noted on schematic, voltage reading taken with VOM from point indicated to chassis
ground. Voltage reading taken using color-bar signal VHF channel 5, all controls at normal. Line voltage at 120
volts. Some voltages may vary with signal strength.
4. Waveforms were taken with color-bar signal and controls set for normal picture. Waveforms marked with
an
✽
may vary with signal strength.
5. The Symbol indicates a fusible resistor, which protects the circuit from possible short circuits.
VOLTAGE CHARTS
NOTE: Voltages were measured using color-bar signal and the controls set for normal picture.
Device/Pin #
Volts/Mode
IC201-44
9.1
IC201-45
5.6
IC201-46
4.8
IC201-47
1.8
IC201-48
0
IC301-1
0.9
IC301-2
4.8
IC301-3
2.0
IC301-4
0
IC301-5
5.1
IC301-6
5.1
IC301-7
0.3
IC301-8
–0.3
IC301-9
0.6
IC301-10
0
IC301-11
0
IC301-12
1.5
IC301-13
GND
IC301-14
1.9
IC301-15
0
IC301-16
1.5
IC486-1
11.6
IC486-2
GND
IC486-3
9.1
IC501-1
GND
IC501-2
13.7
IC501-3
27.1
IC501-4
2.9
IC501-5
2.9
IC501-6
26.2
IC501-7
3.0
IC501-8
2.9
IC501-9
2.9
IC501-10
13.3
POWER ON:
POWER OFF:
IC601-1
129.2
92.5
POWER ON:
POWER OFF:
IC601-2
31.1
9.8
IC601-3
GND
IC681-1
POWER ON:
POWER OFF:
(IN)
11.6
7.3
IC681-2
GND
IC681-3
POWER ON:
POWER OFF:
(OUT)
5.0
5.0
IC701-1
1.9
IC701-2
1.8
IC701-3
1.9
IC701-4
GND
IC701-5
4.3
IC701-6
2.1
IC701-7
185
IC701-8
164
IC701-9
149
IC801-1
4.0
IC801-2
3.9
IC801-3
4.9
IC801-4
9.1
IC801-5
0
IC801-6
0
IC801-7
0
IC801-8
0.3
IC801-9
0
IC801-10
4.9
IC801-11
0
IC801-12
4.8
IC801-13
4.9
IC801-14
4.9
IC801-15
1.9
IC801-16
0.2
IC801-17
2.1
IC801-18
GND
IC801-19
2.2
IC801-20
2.0
IC801-21
GND
IC801-22
4.9
IC801-23
0.2
IC801-24
0.2
IC801-25
4.8
IC801-26
0.3
POWER ON:
POWER OFF:
IC801-27
4.9
0
IC801-28
2.3
IC801-29
2.6
IC801-30
0
IC801-31
4.9
IC801-32
3.6
IC801-33
4.9
IC801-34
3.7
IC801-35
4.8
IC801-36
4.9
IC801-37
4.9
IC801-38
0
IC801-39
0
IC801-40
0
IC801-41
0
IC801-42
0
IC802-1
GND
IC802-2
GND
IC802-3
GND
IC802-4
GND
IC802-5
4.9
IC802-6
4.9
IC802-7
GND
IC802-8
4.9
IC1001-1
0
IC1001-2
0
IC1001-3
6.5
IC1001-4
6.5
IC1001-5
6.5
IC1001-6
GND
IC1001-7
GND
IC1001-8
GND
IC1001-9
0
IC1001-10
0
IC1001-11
9.3
IC1001-12
0.7
IC1001-13
2.5
Device/Pin #
Volts/Mode
POWER ON:
POWER OFF:
D612-1
31.9
10.9
POWER ON:
POWER OFF:
D612-2
31.0
9.8
POWER ON:
POWER OFF:
D612-3
–.3
0.6
POWER ON:
POWER OFF:
D612-4
13.3
1.4
IC002-1
4.5
IC002-2
10.3
IC002-3
4.6
IC002-4
GND
IC002-5
0
IC002-6
1.4
IC002-7
1.4
IC002-8
GND
IC201-1
3.5
IC201-2
5.3
IC201-3
4.5
IC201-4
5.3
IC201-5
4.9
IC201-6
4.5
IC101-7
0
IC201-8
3.6
IC201-9
5.3
IC201-10
GND
IC201-11
3.7
IC201-12
2.4
IC201-13
3.5
IC201-14
3.6
IC201-15
5.6
IC201-16
7.6
IC201-17
0.8
IC201-18
3.5
IC201-19
2.5
IC201-20
2.5
IC201-21
3.7
IC201-22
1.3
IC201-23
1.5
IC201-24
0.9
IC201-25
0
IC201-26
4.7
IC201-27
4.7
IC201-28
4.7
IC201-29
GND
IC201-30
4.1
IC201-31
4.1
IC201-32
4.1
IC201-33
9.0
IC201-34
3.8
IC201-35
3.9
IC201-36
0
IC201-37
4.6
IC201-38
5.3
IC201-39
5.3
IC201-40
GND
IC201-41
5.3
IC201-42
8.9
IC201-43
5.3
Device/Pin #
Volts/Mode
IC8001-33
0.3
IC8001-34
3.1
IC8001-35
3.1
IC8001-36
GND
IC8001-37
3.0
IC8001-38
0.9
IC8001-39
2.9
IC8001-40
1.2
IC8001-41
1.2
IC8001-42
GND
IC8001-43
0.9
IC8001-44
3.2
IC8001-45
0.9
IC8001-46
3.2
IC8001-47
1.0
IC8001-48
GND
IC8001-49
1.0
IC8001-50
GND
IC8001-51
0.9
IC8001-52
GND
POWER ON:
POWER OFF:
Q001-B
0
0.7
POWER ON:
POWER OFF:
Q001-C
7.7
0
Q001-E
GND
Q171-B
2.8
Q171-C
5.1
Q171-E
2.2
Q221-B
2.2
Q221-C
0
Q221-E
4.4
Q242-B
0
Q242-C
0
Q242-E
GND
Q271-B
9.4
Q271-C
0
Q271-E
9.3
Q301-B
5.1
Q301-C
9.3
Q301-E
4.4
Q302-B
4.4
Q302-C
0
Q302-E
5.1
Q315-B
1.5
Q315-C
0
Q315-E
2.2
Q332-B
5.1
Q332-C
GND
Q332-E
5.8
Q333-B
5.4
Q333-C
9.1
Q333-E
5.1
Q340-B
3.1
Q340-C
GND
Q340-E
3.7
Q401-B
0.3
Q401-C
43.6
Q401-E
GND
Device/Pin #
Volts/Mode
IC3401-22
4.1
IC3401-23
3.7
IC3401-24
3.9
IC3401-25
4.1
IC3401-26
4.1
IC3401-27
4.1
IC3401-28
1.9
IC3401-29
4.1
IC3401-30
4.1
IC3401-31
2.0
IC3401-32
4.1
IC3401-33
4.1
IC3401-34
4.1
IC3401-35
0
IC3401-36
4.1
IC3401-37
4.1
IC3401-38
4.1
IC3401-39
4.1
IC3401-40
4.1
IC3401-41
4.1
IC3401-42
GND
IC3401-43
4.1
IC3401-44
4.1
IC3401-45
4.2
IC3401-46
GND
IC3401-47
4.1
IC3401-48
4.1
IC8001-1
GRD
IC8001-2
2.1
IC8001-3
1.6
IC8001-4
1.8
IC8001-5
1.6
IC8001-6
3.2
IC8001-7
3.2
IC8001-8
0.9
IC8001-9
1.4
IC8001-10
0.5
IC8001-11
GND
IC8001-12
3.2
IC8001-13
0.8
IC8001-14
1.4
IC8001-15
0.5
IC8001-16
GRD
IC8001-17
3.1
IC8001-18
GRD
IC8001-19
3.1
IC8001-20
N.C.
IC8001-21
0
IC8001-22
0.2
IC8001-23
0.1
IC8001-24
0.3
IC8001-25
2.2
IC8001-26
GND
IC8001-27
3.1
IC8001-28
N.C.
IC8001-29
0
IC8001-30
GND
IC8001-31
N.C.
IC8001-32
0.4
Device/Pin #
Volts/Mode
IC1001-14
2.5
IC1001-15
0
IC1001-16
9.3
IC1002-1
6.3
IC1002-2
6.2
IC1002-3
2.4
IC1002-4
2.7
IC1002-5
2.7
IC1002-6
GND
IC1002-7
GND
IC1002-8
GND
IC1002-9
0
IC1002-10
0
IC1002-11
0
IC1002-12
6.0
IC1002-13
6.2
IC1002-14
6.0
IC1002-15
6.2
IC1002-16
9.1
IC1003-1
0.2
IC1003-2
0.3
IC1003-3
0
IC1003-4
0
IC1003-5
0
IC1003-6
GND
IC1003-7
GND
IC1003-8
GND
IC1003-9
0
IC1003-10
0.3
IC1003-11
0
IC1003-12
0
IC1003-13
0
IC1003-14
0
IC1003-15
0.4
IC1003-16
9.1
IC3401-1
4.1
IC3401-2
4.1
IC3401-3
4.1
IC3401-4
4.1
IC3401-5
3.6
IC3401-6
3.7
IC3401-7
GND
IC3401-8
4.1
IC3401-9
4.1
IC3401-10
4.1
IC3401-11
4.1
IC3401-12
4.9
IC3401-13
4.1
IC3401-14
1.3
IC3401-15
1.3
IC3401-16
0
IC3401-17
GND
IC3401-18
3.2
IC3401-19
9.1
IC3401-20
0
IC3401-21
4.1
Device/Pin #
Volts/Mode
Device/Pin #
Volts/Mode
Q701-B
1.3
Q701-C
GND
Q701-E
1.9
Q711-B
1.2
Q711-C
GND
Q711-E
1.9
Q721-B
1.2
Q721-C
GND
Q721-E
1.9
Q803-B
4.4
Q803-C
GND
Q803-E
5.1
Q831-B
4.3
Q831-C
4.9
Q831-E
4.9
Q882-B
0
Q882-C
4.2
Q882-E
0
Q1096-B
6.9
Q1096-C
9.1
Q1096-E
6.2
Q1097-B
5.9
Q1097-C
9.1
Q1097-E
5.3
Q8000-B
3.9
Q8000-C
4.2
Q8000-E
3.2
Q8005-B
0.6
Q8005-C
0.3
Q8005-E
GND
Q8006-B
0.6
Q8006-C
0.2
Q8006-E
GND
Q8073-B
4.3
Q8073-C
9.0
Q8073-E
0
Q8076-B
3.7
Q8076-C
GND
Q8076-E
4.4
Q8083-B
2.9
Q8083-C
0.2
Q8083-E
3.1
Q8090-B
0
Q8090-C
3.4
Q8090-E
GND
Q8093-B
1.8
Q8093-C
2.1
Q8093-E
3.4
Q8097-B
1.9
Q8097-C
2.2
Q8097-E
3.3
Q402-B
-0.1
Q402-C
125.26
Q402-E
GND
Q490-B
5.9
Q490-C
6.9
Q490-E
5.2
POWER ON:
POWER OFF:
Q601-B
–0.3
0
POWER ON:
POWER OFF:
Q601-C
155.0
169.6
Q601-E
GND
POWER ON:
POWER OFF:
Q604-B
–0.4
0.6
POWER ON:
POWER OFF:
Q604-C
–0.3
0
Q604-E
GND
POWER ON:
POWER OFF:
Q605-B
13.1
1.4
POWER ON:
POWER OFF:
Q605-C
–0.4
0.6
POWER ON:
POWER OFF:
Q605-E
13.0
2.0
POWER ON:
POWER OFF:
Q627-B
11.1
7.3
POWER ON:
POWER OFF:
Q627-C
11.6
1.0
POWER ON:
POWER OFF:
Q627-E
11.9
7.3
POWER ON:
POWER OFF:
Q635-B
4.2
1.4
POWER ON:
POWER OFF:
Q635-C
31.1
9.8
POWER ON:
POWER OFF:
Q635-E
4.2
1.4
POWER ON:
POWER OFF:
Q681-B
0.7
0
POWER ON:
POWER OFF:
Q681-C
0
7.3
Q681-E
GND
POWER ON:
POWER OFF:
Q688-B
12.6
1.0
POWER ON:
POWER OFF:
Q688-C
0
0
POWER ON:
POWER OFF:
Q688-E
12.5
1.0
POWER ON:
POWER OFF:
Q693-B
0.5
6.2
POWER ON:
POWER OFF:
Q693-C
30.9
8.9
POWER ON:
POWER OFF:
Q693-E
0.4
5.7
POWER ON:
POWER OFF:
Q695-B
30.9
9.6
Q695-C
GND
POWER ON:
POWER OFF:
Q695-E
31.0
9.8
Device/Pin #
Volts/Mode
WAVEFORMS
NOTE: Waveforms were taken with color-bar signal and the controls set for normal picture.
IC201-
22
(R-Output)
3.7V HORIZ
IC201-
23
(G-Output)
3.8V HORIZ
IC201-
24
(B-Output)
3.8V HORIZ
Q332- B
(Selected Video)
1.0V HORIZ
IC501- 2
(Vertical Output)
58 VERT
IC501- 5
(Inverting Input)
0.6V VERT
TPV
(Internal Video)
1.0V HORIZ
Q401- B
(Horizontal Drive)
0.7V HORIZ
Q402- B
(Horizontal Output)
13V HORIZ
T402- 9
(Heater)
28V HORIZ
Q601- B
(Power Switching)
5V 50KHz
