Schematic Insert; Schematic Notes; Pin Layouts; Capacitor And Resistor Codes - Sanyo DS31820 Service Manual

MODEL DS31820 Chassis No. 31820-00
SCHEMATIC DIAGRAMS
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.
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.
INTEGRATED CIRCUITS PHOTO COUPLERS
TRANSISTORS
TOP VIEW
TOP VIEW
B B B B
E C E C B
E C E C
MARK 1 1 E C
1
COUNT TERMINALS IN
ARROW DIRECTION
SIDE VIEW
C E
E
C E C
B B C E
B
B
B ... BASE
C ... COLLECTOR
1
1 E ... EMITTER
1
CHIP TRANSISTORS CHIP RESISTORS
TOP VIEW TOP VIEW
C
B ... BASE
1
C ... COLLECTOR
1 3 3 2 OUT E ... EMITTER
2
1 1
GND (3)
IN
(2)
(1)
B E
CAPACITOR AND RESISTOR CODE CHART
CAPACITOR (Example)
500 C K 1500 B D ........................... ±0.5pF
T ............................ +50%
J ............................ ±5%
K ........................... ±10%
M ........................... ±20%
N ........................... ±30%
Characteristics P ...........................
+100% –
Value code Z ........................... +80%
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 —
BLOCK DIAGRAM
Q8083
PIP Q8073
Q8076
PIP CVBS IN
SYNC CVBS
IN IN
22 13 IC8001
PIP CONTROLLER
23
24 25 45 47 8 51 49 32 33
Q8090
Q8005 Q8006
ANT
INT. VIDEO
Q882
H-S V-S
SIF
14 1 2 MUTE
38
VIDEO
S1-SW
18 12
SCL BUS SCL S2-SW
4 34 35
MAIN TV/AV
SDA BUS SDA 8
5 32
PIP TV/AV
7
AFT S-CURVE AFT S-CURVE
16 29 PIP TV/AV
6
6 IIC SDA MAIN AV 1/2
33 5
IC802
5 IIC SDA FIX/VAR
4
EEPROM 31
RC IN
A1901
BEAM
10
RC PRE-AMP VOLTAGE
DETECT.
KEY IN
ABL-IN
SW1901-1906
9 30
CONTROL KEYS
IC801
C809
X IN IN SELECT
CPU
19 13
WITH
CAPTION
C808
X OUT
DECODER OUT SELECT
20 11
X 801
DIODES
CVBS
17
OSD (R)
42
+12V OSD (G)
A K
41
OSD (B)
40
A K
OSD (BLK)
39
Q688
RESET
RELAY
25
DRIVER
A K
RL601
A K PS601 POWER FAIL
L901
RELAY 3
POSISTOR
DEGAUSING
POWER
COIL 27
ON/OFF
K
T601
A CONVERTER
D694
F601 TRANS.
LF601 D621
+16V
AC
A AC120V LINE
K +130V
FUSE
60Hz FILTER
D624
Q601 D627
INFRARED EMITTING
SW.
D625
C601
A....ANODE IC601
D601
POWER Q635
FULL WAVE Q604
K....CATHODE
D612 REG. OVERLOAD
RECTIFIER OSC
PROTECT.
PHOTO
COUPLER
Q605
ERR.
4A 125V
AMP.
3
12 x 10 = 12K ohm
VOLTAGE CHARTS
NOTE: Voltages were measured using color-bar signal and the controls set for normal picture.
Device/Pin # Volts/Mode Device/Pin # Volts/Mode
POWER ON: POWER OFF: IC201-44 9.1
D612-1
31.9 10.9
IC201-45 5.6
IC201-46 4.8
POWER ON: POWER OFF:
D612-2
31.0 9.8 IC201-47 1.8
IC201-48 0
POWER ON: POWER OFF:
D612-3
–.3 0.6 IC301-1 0.9
IC301-2 4.8
POWER ON: POWER OFF:
D612-4 IC301-3 2.0
13.3 1.4
– 10%
IC301-4 0
IC002-1 4.5
IC301-5 5.1
IC002-2 10.3
IC301-6 5.1
IC002-3 4.6
IC301-7 0.3
IC002-4 GND
IC301-8 –0.3
IC002-5 0
IC301-9 0.6
0%
IC002-6 1.4
IC301-10 0
IC002-7 1.4
– 20%
IC301-11 0
IC002-8 GND
IC301-12 1.5
IC201-1 3.5
IC301-13 GND
IC201-2 5.3
IC301-14 1.9
IC201-3 4.5
IC301-15 0
IC201-4 5.3
IC301-16 1.5
IC201-5 4.9
IC486-1 11.6
IC201-6 4.5
IC486-2 GND
IC101-7 0
IC486-3 9.1
IC201-8 3.6
IC501-1 GND
IC201-9 5.3
IC501-2 13.7
IC201-10 GND
IC501-3 27.1
IC201-11 3.7
IC501-4 2.9
IC201-12 2.4
IC501-5 2.9
IC201-13 3.5
IC501-6 26.2
IC201-14 3.6
IC501-7 3.0
IC201-15 5.6
IC501-8 2.9
IC201-16 7.6
IC501-9 2.9
IC201-17 0.8
IC501-10 13.3
IC201-18 3.5
IC201-19 2.5 POWER ON:
IC601-1
129.2
IC201-20 2.5
IC201-21 3.7 POWER ON:
IC601-2
IC201-22 1.3 31.1
IC201-23 1.5 IC601-3 GND
IC201-24 0.9 IC681-1
POWER ON:
11.6
IC201-25 0 (IN)
IC201-26 4.7 IC681-2 GND
IC201-27 4.7
IC681-3
POWER ON:
IC201-28 4.7 5.0
(OUT)
IC201-29 GND IC701-1 1.9
IC201-30 4.1 IC701-2 1.8
IC201-31 4.1 IC701-3 1.9
IC201-32 4.1 IC701-4 GND
IC201-33 9.0
IC701-5 4.3
IC201-34 3.8
IC701-6 2.1
IC201-35 3.9 IC701-7 185
IC201-36 0 IC701-8 164
IC201-37 4.6 IC701-9 149
IC201-38 5.3
IC801-1 4.0
IC201-39 5.3
IC801-2 3.9
IC201-40 GND IC801-3 4.9
IC201-41 5.3 IC801-4 9.1
IC201-42 8.9 IC801-5 0
IC201-43 5.3 IC801-6 0
— 30 —
CAUTION
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
4A 125V
FUSIBLE DE RECHANGE DE MEME TYPE 4A, 125V.
SDL
5 IC3401
SCL MTS DECODER
6
13
Q242
B P SELECT
Q171
SIF
C1/C2
IC201
SIGNAL PROCESS
SDA 35
BUS
SCL 34
INTERFACE
3 39 DVD U
ACL
Y 4 38 DVD V
VIDEO
Q332
SWITCH 37 DVD Y
C 2 ABL
H-PULSE
5 V SYNC
Q803 V 17 SC
6
SYNC
14 V
SEP.
2
H
C Y 5 IC501
9 PCC
HORIZ. VERT.
12 16 14 DRIVER OUTPUT
10
2 11 E/W T401
3 DELAY
H-DRIVE
LINE
1 Q340
COMB TRANS.
FILTER
15 7 SC
Q401
BLACK 19 H DRIVE
HORIZ.
STRETCH
DRIVE
9
46
S CLOCK 3.58
SHARP
BPA
Q402
18 H PULSE HORIZ.
COLOR CONT OUTPUT
X RAY
DEMOD BRITE
28 22
27 23
HOLD DOWN HOLD DOWN
OSD RGB
Q831 26 DETECT.
24 Q429
SW. OUT
RESET
25
21 1K
Q721 1 9
I
C
Q711 2 8
7
5V 0
IC681
ALWAYS 1
5V REG. Q701 3 7
B9
Q681
Q221 5
12V SW
12V
DRIVE
B4
+12V
IC486
9V
9V REG.
Q627
12V SW.
D801
STANDBY MODE
Q693, 5V
Q490
ALWAYS +5V
Q695
5V REG. B6
CONTROL
Device/Pin # Volts/Mode Device/Pin # Volts/Mode
IC801-7 0 IC1001-14 2.5
IC1001-15 0
IC801-8 0.3
IC801-9 0 IC1001-16 9.3
IC801-10 4.9 IC1002-1 6.3
IC801-11 0 IC1002-2 6.2
IC801-12 4.8 IC1002-3 2.4
IC801-13 4.9 IC1002-4 2.7
IC801-14 4.9 IC1002-5 2.7
IC801-15 1.9 IC1002-6 GND
IC801-16 0.2 IC1002-7 GND
IC801-17 2.1 IC1002-8 GND
IC801-18 GND IC1002-9 0
IC1002-10 0
IC801-19 2.2
IC801-20 2.0 IC1002-11 0
IC801-21 GND IC1002-12 6.0
IC801-22 4.9 IC1002-13 6.2
IC801-23 0.2 IC1002-14 6.0
IC801-24 0.2 IC1002-15 6.2
IC801-25 4.8 IC1002-16 9.1
IC801-26 0.3 IC1003-1 0.2
IC1003-2 0.3
POWER ON: POWER OFF:
IC801-27
4.9 0 IC1003-3 0
IC801-28 2.3 IC1003-4 0
IC1003-5 0
IC801-29 2.6
IC1003-6 GND
IC801-30 0
IC1003-7 GND
IC801-31 4.9
IC801-32 3.6 IC1003-8 GND
IC801-33 4.9 IC1003-9 0
IC801-34 3.7 IC1003-10 0.3
IC1003-11 0
IC801-35 4.8
IC1003-12 0
IC801-36 4.9
IC1003-13 0
IC801-37 4.9
IC801-38 IC1003-14 0
0
IC801-39 0 IC1003-15 0.4
IC1003-16 9.1
IC801-40 0
POWER OFF:
92.5 IC3401-1 4.1
IC801-41 0
IC3401-2 4.1
IC801-42 0
POWER OFF:
IC802-1 GND IC3401-3 4.1
9.8
IC802-2 GND IC3401-4 4.1
IC802-3 GND IC3401-5 3.6
POWER OFF:
IC3401-6 3.7
7.3 IC802-4 GND
IC3401-7 GND
IC802-5 4.9
IC3401-8 4.1
IC802-6 4.9
POWER OFF:
IC802-7 GND IC3401-9 4.1
5.0
IC802-8 4.9 IC3401-10 4.1
IC3401-11 4.1
IC1001-1 0
IC3401-12 4.9
IC1001-2 0
IC3401-13 4.1
IC1001-3 6.5
IC1001-4 6.5 IC3401-14 1.3
IC1001-5 6.5 IC3401-15 1.3
IC1001-6 GND IC3401-16 0
IC3401-17 GND
IC1001-7 GND
IC3401-18 3.2
IC1001-8 GND
IC3401-19 9.1
IC1001-9 0
IC1001-10 0 IC3401-20 0
IC1001-11 9.3 IC3401-21 4.1
IC1001-12 0.7
IC1001-13 2.5
NOTE: Waveforms were taken with color-bar signal and the controls set for normal picture.
1 SP901
L 7
(L)
4 SPEAKER
R 6
IC002 (L)
3
F L
AUDIO
39
3 SP902
F R AMP.
33 34 38 2
(R) SPEAKER
Q005
Q001 (R)
MUTE
11V
K1002
IC1001
SELECT V/Y + C1/C2
FIXED
S2-SW 11
AUDIO OUT
H
13 V2 IN (L)
V2 14
L
MAIN AV 1/2 9 FIXED
L 5 C1 IN AUDIO OUT
C1 4
(R)
H
S1-SW 10
L
2 Y1 IN
V1/Y1 15 (Vertical Output)
H 1 V1 IN
V2/Y2
V1/Y1
K1001
IC1003 A/V 1 IN
Q1096
IC1002
AUDIO VIDEO IN
SELECT CVBS
SELECT
FOR PIP
Q1097
AUDIO IN (L)
EXT.
13 12 5 3 2 1
V IN
H L L H L H
FOR PIP
AUDIO IN (R)
PIP
TV/AV 11 14 10 4 9 15 MAIN
AV 1/2 A/V 2 IN
CVBS PIP
VIDEO IN
PIP AV 1/2
Y/V SELECT
AUDIO IN (L)
S1/SW (Horizontal Output)
D481
+200V V AUDIO IN (R)
DEFLECTION
YOKE
H
Y1 IN Y
K1051
4
C1 IN C
ABL
1 6/7
S1 SW
H.V.
T402 S1 IN AV1
HORIZ. FOCUS
OUTPUT
SCREEN
TRANS.
HEATER
9
V +B DVD-U
3
LOW +B
8
11
DVD-V
DVD-Y
D482
-R OUT
-G OUT
Q901
PIX TUBE
-B OUT
D428
(16V)
+26V
ANODE LEAK
(7V) D483
DETECT.
D429
R428
g7svm
Device/Pin # Volts/Mode Device/Pin # Volts/Mode Device/Pin #
Q402-B
IC3401-22 4.1 IC8001-33 0.3
IC3401-23 3.7 IC8001-34 3.1 Q402-C
IC3401-24 3.9 IC8001-35 3.1 Q402-E
IC3401-25 4.1 IC8001-36 GND Q490-B
Q490-C
IC3401-26 4.1 IC8001-37 3.0
Q490-E
IC3401-27 4.1 IC8001-38 0.9
IC3401-28 1.9 IC8001-39 2.9
Q601-B
IC3401-29 4.1 IC8001-40 1.2
IC3401-30 4.1 IC8001-41 1.2
Q601-C
IC3401-31 2.0 IC8001-42 GND
IC3401-32 4.1 IC8001-43 0.9 Q601-E
IC3401-33 4.1 IC8001-44 3.2
Q604-B
IC3401-34 4.1 IC8001-45 0.9
IC3401-35 0 IC8001-46 3.2
Q604-C
IC3401-36 4.1 IC8001-47 1.0
IC3401-37 4.1 IC8001-48 GND
Q604-E
IC3401-38 4.1 IC8001-49 1.0
Q605-B
IC3401-39 4.1 IC8001-50 GND
IC3401-40 4.1 IC8001-51 0.9
IC3401-41 4.1 IC8001-52 GND Q605-C
IC3401-42 GND
POWER ON: POWER OFF:
Q001-B
IC3401-43 4.1 0 0.7 Q605-E
IC3401-44 4.1
POWER ON: POWER OFF:
Q001-C
IC3401-45 4.2
7.7 0 Q627-B
IC3401-46 GND
Q001-E GND
IC3401-47 4.1
Q171-B 2.8 Q627-C
IC3401-48 4.1
Q171-C 5.1
IC8001-1 GRD
Q171-E 2.2 Q627-E
IC8001-2 2.1 Q221-B 2.2
IC8001-3 1.6
Q221-C 0
Q635-B
IC8001-4 1.8
Q221-E 4.4
IC8001-5 1.6
Q242-B 0
Q635-C
IC8001-6 3.2
Q242-C 0
IC8001-7 3.2
Q242-E GND
Q635-E
IC8001-8 0.9
Q271-B 9.4
IC8001-9 1.4
Q271-C 0
Q681-B
IC8001-10 0.5
Q271-E 9.3
IC8001-11 GND
Q301-B 5.1
Q681-C
IC8001-12 3.2
Q301-C 9.3
IC8001-13 0.8 Q301-E 4.4
Q681-E
IC8001-14 1.4
Q302-B 4.4
IC8001-15 0.5 Q688-B
Q302-C 0
IC8001-16 GRD
Q302-E 5.1
IC8001-17 3.1 Q688-C
Q315-B 1.5
IC8001-18 GRD
Q315-C 0
IC8001-19 3.1
Q315-E 2.2 Q688-E
IC8001-20 N.C.
Q332-B 5.1
IC8001-21 0
Q332-C GND Q693-B
IC8001-22 0.2
Q332-E 5.8
IC8001-23 0.1
Q333-B 5.4 Q693-C
IC8001-24 0.3 Q333-C 9.1
IC8001-25 2.2
Q333-E 5.1
Q693-E
IC8001-26 GND
Q340-B 3.1
IC8001-27 3.1
Q340-C GND
Q695-B
IC8001-28 N.C.
Q340-E 3.7
Q695-C
IC8001-29 0
Q401-B 0.3
IC8001-30 GND Q401-C 43.6
Q695-E
IC8001-31 N.C.
Q401-E GND
IC8001-32 0.4
— 31 —
WAVEFORMS
IC201-
22 IC201- 23 IC201- 24
(R-Output) (G-Output) (B-Output) (Selected Video)
3.7V HORIZ 3.8V HORIZ 3.8V HORIZ 1.0V HORIZ
IC501- 2 IC501- 5 TPV
(Inverting Input) (Internal Video) (Horizontal Drive)
58 VERT 0.6V VERT 1.0V HORIZ 0.7V HORIZ
Q402- B T402- 9
Q601- B
(Heater)
(Power Switching)
13V HORIZ 5V 50KHz 28V HORIZ
Device/Pin # Volts/Mode
Volts/Mode
-0.1 Q701-B 1.3
125.26 Q701-C GND
GND Q701-E 1.9
5.9 Q711-B 1.2
6.9 Q711-C GND
5.2 Q711-E 1.9
Q721-B 1.2
POWER ON: POWER OFF:
–0.3 0 Q721-C GND
Q721-E 1.9
POWER ON: POWER OFF:
Q803-B 4.4
155.0 169.6
Q803-C GND
GND
Q803-E 5.1
POWER ON: POWER OFF:
Q831-B 4.3
–0.4 0.6
Q831-C 4.9
POWER ON: POWER OFF:
Q831-E 4.9
–0.3 0
Q882-B 0
GND
Q882-C 4.2
POWER ON: POWER OFF:
Q882-E 0
13.1 1.4
Q1096-B 6.9
POWER ON: POWER OFF:
Q1096-C 9.1
–0.4 0.6
Q1096-E 6.2
POWER ON: POWER OFF:
Q1097-B 5.9
13.0 2.0
Q1097-C 9.1
POWER ON: POWER OFF:
Q1097-E 5.3
11.1 7.3
Q8000-B 3.9
POWER ON: POWER OFF:
Q8000-C 4.2
11.6 1.0
Q8000-E 3.2
POWER ON: POWER OFF: Q8005-B 0.6
11.9 7.3
Q8005-C 0.3
Q8005-E GND
POWER ON: POWER OFF:
4.2 1.4
Q8006-B 0.6
Q8006-C 0.2
POWER ON: POWER OFF:
31.1 9.8 Q8006-E GND
Q8073-B 4.3
POWER ON: POWER OFF:
4.2 1.4 Q8073-C 9.0
Q8073-E 0
POWER ON: POWER OFF:
Q8076-B 3.7
0.7 0
Q8076-C GND
POWER ON: POWER OFF:
Q8076-E 4.4
0 7.3
Q8083-B 2.9
GND
Q8083-C 0.2
POWER ON: POWER OFF:
Q8083-E 3.1
12.6 1.0
Q8090-B 0
POWER ON: POWER OFF:
Q8090-C 3.4
0 0
Q8090-E GND
POWER ON: POWER OFF:
Q8093-B 1.8
12.5 1.0
Q8093-C 2.1
POWER ON: POWER OFF:
Q8093-E 3.4
0.5 6.2
Q8097-B 1.9
POWER ON: POWER OFF: Q8097-C 2.2
30.9 8.9
Q8097-E 3.3
POWER ON: POWER OFF:
0.4 5.7
POWER ON: POWER OFF:
30.9 9.6
GND
POWER ON: POWER OFF:
31.0 9.8
— 32 —
Q332- B
Q401- B