DOWNLOAD Panasonic TX-R20LA80 Service Manual ↓ Size: 4.34 MB | Pages: 31 in PDF or view online for FREE

Model
TX-R20LA80
Pages
31
Size
4.34 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / GLP21L CHASSIS
File
tx-r20la80.pdf
Date

Panasonic TX-R20LA80 Service Manual ▷ View online

Cct Ref
Parts Number
Description
C3818
ECJ2FB1A225K
S.M.CAP
10V
2200nF
C3819
ECJ1VF1H104Z
S.M.CAP
50V
100nF
C3820
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3821
ECJ1VB1H102
S.M.CAP
50V
1nF
C3822
ECJ1VC1H331
S.M.CAP
50V
330pF
C3823
ECJ2FB1C474K
S.M.CAP
16V
470nF
C3824
ECJ1VB1H223K
S.M.CAP
50V
22nF
C3825
ECJ1VF1H104Z
S.M.CAP
50V
100nF
C3826
ECJ1VB1H103
S.M.CAP
50V
10nF
C3827
ECJ1VB1H103
S.M.CAP
50V
10nF
C3828
ECJ1VB1H103
S.M.CAP
50V
10nF
C3829
ECJ1VB1H103
S.M.CAP
50V
10nF
C3830
ECJ1VB1H102
S.M.CAP
50V
1nF
C3831
ECJ3YB1A106M S.M.CAP
10V
10µF
C3833
ECJ2FB1A225K
S.M.CAP
10V
2200nF
C3834
ECCN3J100DGE CERAMIC
6KV
10pF
C3835
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3836
ECCN3J100DGE CERAMIC
6KV
10pF
C3837
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3838
ECCN3J100DGE CERAMIC
6KV
10pF
C3839
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3841
ECCN3J100DGE CERAMIC
6KV
10pF
C3842
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3843
ECCN3J100DGE CERAMIC
6KV
10pF
C3844
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3845
ECCN3J100DGE CERAMIC
6KV
10pF
C3846
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3848
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3849
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3850
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3851
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3852
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3853
ECJ2VB1H472K
S.M.CAP
50V
4.7nF
C3854
ECJ2FB1H104
S.M.CAP
50V
4.7nF
C3855
ECJ2VB1H103K
S.M.CAP
50V
4.7nF
C3856
ECJ2VB1H103K
S.M.CAP
50V
4.7nF
C3860
EEUEB1H100SB ELECT
50V
10µF
TERMINALS AND LINKS
A2
K1KA08AA0193
8P CONNECTOR
A5
K1KA04AA0192
4P CONNECTOR
A5-SPK
TXJ/A5AHEE
A5 - SPK WIRE
A6
K1MN50AA0018
50P CONNECTOR
A6-
PANEL
TXJ/A6AHEE
A6 - PANEL WIRE
A7
K1KB23A00003
23P CONNECTOR
A8
K1KA05AA0192
5P CONNECTOR
A8-V2
TXJ/A8AHEE
A8 - V2 WIRE
JK3000
K1FB121A0012
SCART SOCKET
JK3002
K2HA204A0047
AUDIO TERMINAL
JK3600
TJB0E604
AV TERMINAL
P1
K1KA03A00608
3P CONNECTOR
P2
K1KA23A00003
23P CONNECTOR
P10
K1KY02B00008
2P CONNECTOR
P11
K1KY02B00008
2P CONNECTOR
P12
K1KY02B00008
2P CONNECTOR
P13
K1KY02B00008
2P CONNECTOR
P14
K1KY02B00008
2P CONNECTOR
P15
K1KY02B00008
2P CONNECTOR
V2
K1KA05BA0055
5P CONNECTOR
SWITCHES
SW800
ESB92DA1B
SWITCH
SW1070 EVQPC105K
SWITCH
SW1071 EVQPC105K
SWITCH
SW1072 EVQPC105K
SWITCH
SW1073 EVQPC105K
SWITCH
SW1074 EVQPC105K
SWITCH
21
TX-R20LA80
12 Schematic Diagram
12.1. Schematic Diagram Notes
NOTE :
 1. RESISTOR
All resistors are carbon 1/4W resistor, unless marked otherwise.
Unit of resistance is OHM (
Ω) (k=1,000, M=1,000,000).
 2. CAPACITORS
All capacitors are ceramic 50V unless marked otherwise.
Unit of capacitance is µF unless otherwise stated.
 3. COIL
Unit of inductance is µF unless otherwise noted.
 4. TEST POINT
: Test Point Position
 5. EARTH SYMBOL
: Chassis Earth (Cold)
: Line Earth (Hot)
 6. VOLTAGE MEASUREMENT
Voltage is measured using D.C. voltmeter.
Measurement conditions are as follows:
Power Source....................a.c. 220V-240V, 50Hz
Receiving Signal................Colour Bar signal (RF)
All customers controls.......Maximum position
 7. 
Indicates the Video signal path
Indicates the Audio signal path
These schematic diagrams are the latest at time of printing and are subject to change without notice.
REMARKS :
 1. Do not touch the hot part, or the hot and cold parts at the same time, as you are liable to a shock hazard.
 2. Do not short circuit the hot and cold circuits as electrical components may be damaged.
 3. Do not connect an instrument, such as an oscilloscope, to the hot and cold circuits simultaneously as this may cause fuse
failure. Connect the earth of the instruments to the earth connection of the circuit being measured.
 4. Make sure to disconnect the power plug before removing the chassis.
NOTE :
 1. The Power Supply Circuit contains a circuit area, which uses a separate power supply to isolate the earth connection.
The circuit is defined by HOT and COLD indications in the schematic diagram. All circuits, except the Power Circuit, are COLD.
22
TX-R20LA80
12.2. A Board
12.2.1. A Board (1 / 3)
<1A>
<2A>
<3A>
<4A>
<5A>
<6A>
<7A>
<8A>
<9A>
23
TX-R20LA80
12.2.2. A Board (2 / 3)
<1B>
<2B>
<3B>
<4B>
<5B>
<6B>
<7B>
<8B>
<1A>
<2A>
<3A>
<4A>
<5A>
<6A>
<7A>
<8A>
<9A>
24
TX-R20LA80
Page of 31
Display

Click on the first or last page to see other TX-R20LA80 service manuals if exist.