How it Works
Panasonic
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TX-21JT2
Schematic
7 pgs662.72 Kb0
Service Manual
17 pgs1.12 Mb0

Panasonic TX-21JT2 Schematic

SCHEMATIC DIAGRAMS FOR MODEL
TX-21JT2
(Z-M3L CHASSIS)
IMPORTANT SAFETY NOTICE
Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacturers' specified parts.
NOTE
1. RESISTOR All resistors are carbon ¼W 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 µH, unless otherwise stated.
4. TEST POINT
Test Point Position
5. EARTH SYMBOL
Chassis Earth (Cold)
Line Earth (Hot)
6. VOLTAGE MEASUREMENT Voltage is measured by a d.c. voltmeter. Measurement conditions are as follows: Power source a.c. 220V-240V, 50Hz Receiving Signal Colour Bar signal (RF) All customer 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
a. Do not touch the hot part, or the hot and cold parts at the same time, as you are liable to a shock hazard.
b. Do not short circuit the hot and cold circuits as electrical components may be damaged.
c. 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.
d. 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.
12
6
G-1
G-2
AUDIO_OUT
A_MUTE
TO SOUND AMP/21PIN
47 1/4W
R126
W814
560P CH
C642
1.5K
R637
56P CH
C646
100K
1SS133
D603
2
3.6
7.9
3.0
Q606
R632
2SC2412K
270 1/4W
12uH
2.7
Q607
BUFFER
2SC2412K
7.9
2.0
C631
4
FROM/TO POWER
100 1/4W
R118
3.3K 1/4W
R117
18P CH
C105
18P CH
C104
0.1 B
C103
0.1 B
C102
C101 1006.3V KA
C628
220
330
CF604
560 1/4W
R633
AT+5.6V
POWER
R124
10K
X101
12MHz
100CT01207
100
R649
100
R647
100
R645
10K
R644
15K
R640
0.022 B
C639
0.022 B
C638
0.022 B
C637
100
R639
33K M +-1%
R638
0.001 B
C636
0.047 B
C635
0.047 B
C634
220
R629
100
0.1 B
R628
2.250V KA
R625
C626
27K
R623
10 3
1SS133
D602
R630
TPSRA6M00B00-A0
470
R634
1K
R635
TU001 TUWRF4EK-778F2
56P CH
C647
10uH 0305
7
R104
R103
R102
R101
1.2K 1/4W
R109
OS101
470
330
220
180
PIC-37142SY
1.7
Q608
BUFFER
2SA1037AK
R642
R631
6.8K
R643
4.7 1/4W
STR
DOWN
UP
Vout
B+
GND
R622
EVQ21505R
SW101
EVQ21505R
SW102
FUNCTION
EVQ21505R
SW103
EVQ21505R
SW104
EVQ21505R
SW105 TV/AV
1
2
3
68uH 0305
L603
18K
R626
22K
100 1/4W
R621
0
1.8
220K
47
R636
C122
R624
C641
L104
C107
560
1016V KA
10uH 0305
C106 1006.3V KA
0.1 B
0305
10uH
L102
R650 100
R648 100
R646 100
C640_1 10035V YK
47K
R666
220 1/4W
R653
C633 10016V KA
0.1 B
C632
R627
0.001 B
C627
220
R641
0.0022 B
0.1 B
C630
10016V YK
C629
BUFFER
L602
1050V YK
S801Y
8
L101
567
(MAIN PCB)
MICON/CHROMA SCHEMATIC DIAGRAM
9
60 61 62 63 64
50 51 52 53 54 55 56 57 58 59
40 41 42 43 44 45 46 47 48 49
33 34 35 36 37 38 39
3.55.43.71.32.44.88.04.0 03.31.54.4 02.52.52.51.76.02.22.22.23.2 03.2 00003.23.33.34.8
AGC
1
AGC
2
ADRES
3
SCL
4
SDA
5
V.S
6
BPL
7
8
BTL
9
10
IF
11
3
S/SW
FROM SOUND AMP/21PIN
3.3K
R106
R111
R115
D101
LED SENTER
0.1 B
C603
10016V KA
C602
0.0047 B
C607
1B
C606
2216V KA
C608
R609
0.001 B
C611
0.001 B
C612
S805X
0.0033 B
C615
1K
R602
1K
R603
BUFFER
1K
R607
220
100
Q601
SLR-342VCT32
L601
Q602
BUFFER
2SC2412K
220 1/2W
R658
2SC2412K
3.1
7.0
R606
A0
1234
A1
A2
VSS
0000
10uH 0305
1.6
5.0
2.1
R652
4.7K
12345
OUTOUT G IN IN
0.022 B
C656
330
R657
1.5uH VIF PRE.AMP
L605
6.5
6.8K
R655
560
C648
2.5 R605
L604
0.33uH
5.6K
680
4
2
3
1
CP101
03JQ-ST
NC
GND
REMOTE
NC
110111213141516171819 220212223242526272829 3303132
NC
0
SCL
5.000.3 5.02.51.63.302.45.0 8.03.64.004.001.91.91.91.93.95.02.03.22.22.2
SDA
SECAM.L(H)
4
000
OCP
5
RF AGC
6
KEY_IN
789
S/SW
GND
LED1
SECAM_VL_H
00
GND
SEC_PLL
VCC
DECDING
PHI2
PHI1
GND
DEC_BG
AVL/EW
V -
V +
IF1
IF2
IREF
VSCAP
AGC
AUDIO_OUT
GND
SIF_AGC
AM_OUT
NC
SCL
SDA
100
R105
100
3.3K
R107
R108
33K
R110
15K
100 1/4W
R112
100
R113
100
R114
NC
C601
0.22 TF
C604
0.22 TF
0.0022 B
C605
15K
R601
0.1 B
C609
4.750V KA
C610
39K
R604
0.1 TF
C613
2250V KA
C616
3.9K
R608
330P CH
C617
0.01 B
C614
0.0012 B
C618
5
100
R123
IC101 TDA9360MICON/CHROMA IC
IR
POWER
A.MUTE
Vddp
RESET
X_TAL
X_TAL
GND
VDD
VPE
3.3V(A)
B_OUT
G_OUT
R_OUT
I_BLACK
BCL
B_IN
G_IN
R_IN
F_BLANK
AM-OUT
C_IN
CVBS/Yin
GND
CVBSin
Vp1
IF_VO
IF_PLL
EHT
EXT.A.IN
SAND
H_OUT
2.250V YK R651
12K
R008
4706.3V YK
R001
100
C004
R003
18K 1/2W
220P CH
C002
C003_1
100K
R005
10K
R006
220P CH
C005
100
R004
10uH 0305
L001
18K 1/2W
0.022 B R002
C001
D001 MTZJ33B
12 13
14 15
NC
TP002
0
2.2
NC
NC
4.2
4.1
NC
4.9
NC
31.3
NC
2
VCC
TEST
SCL
SDA
5678
4.2 4.2 0 5.0
S-24C16AFJA-TB-01
IC199
EEPROM IC
15K
R116
1050V KA
C650
J1981M
CF601
0.01 B
1
SIF SAW FILTER
Q609
120
KTC3881S-RTK
R656
0.8
2.2K
1.5 R654
0.001 B
MKT40.4MA110P
CF605
47K
C619
R610
CC003
TP-1S-05
PCB010
100
R120
100
R119
0.1 B
C108
4716V KA
C109
W820
TMB553
1
B.SIGNAL
R.SIGNAL
G.SIGNAL
VIDEO SIGNAL
PLAYBACK LUMINANCE SIGNAL
LUMINANCE SIGNAL
DEFLECTION SIGNAL
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
THE TIMETHIS INTERCONNECTION DIAGRAM IS THE LATEST ATNOTE:
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
ABC D E F GH
B.OUT
FROM/TO DEFLECTION/CRT
G.OUT
R.OUT
ICATH
H_OUT
H.PLUSE
V+
V-
ABL
B-IN
FROM/TO SOUND AMP/21PIN
G_IN
R_IN
C_IN
8
F_BLANK
EXT_A_IN
FRONT_V_IN
7
EXT_V_OUT
EXT_A_OUT
ABC D E F GH
GND
AT3.5V
P.CON+8V+BP.CON+5V
FROM POWER
6
5
4
3
2
1
8
G-3
G-4
(AV PCB)
C709_1
C704
J703
AV1-06D-4
E
H
L704
R718
3
SP351
SPEAKER
CD1002
1
2
470P CH
C703
10uH
820 1/4W
47K
R717
1
1
CH121701
25
2
2
SG04D11BNB
6
7
R1010
4
E
1
J702
2
H
AV1-06D-3
RCA JACK (YELLOW)
RCA JACK WHITE
R_IN
G_IN
B-IN
5
F_BLANK
R719
C_IN
EXT_A_IN
1K 1/4W
EXT_A_OUT
1K 1/4W
6
19
21 3456789
L706
R710 68
S801X
EXT_V_OUT
FROM/TO MICON/CHROMA
10uH
R709 75
R704 75
R711 100K
S/SW
7
220
1
J701
21PIN
0350_9982_05
10uH
L705_1
W810
75
R714
10uH
L701
0.001 CH
10uH
L703
C702
0.001 CH
1016V KA
R7011KR702
2.2K
101112131415161718
NC
R703
330K 1/4W
R706
1K 1/4W
R707
R715 75
NC
1K 1/4W
R713 75
R708
234
W813
100 1/2W
16V KA
C1008 47
W815
R1009
47
16V KA
100 1/2W
C1007
2
5
NC
0.001 B
C1010
0.001 B
C1009
B1003
J1001
HEADPHONE_JACK
1
W5RH3.5X5X1.0
HTJ-035-28A
1
10016V YK
C1006
(MAIN PCB)
89
NC
00
24
SOUND AMP/21PIN SCHEMATIC DIAGRAM
0 6.0 1.48.9 5.1 5.1 3.2
SOUND AMP IC
IC1001 AN7523
+
1234567
C1012
C1003_1
0.001 CH
COLOR SIGNAL
VIDEO SIGNAL
PLAYBACK LUMINANCE SIGNAL
LUMINANCE SIGNAL
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
FRONT V.IN
CP701B
CD701
CH262501
12345
CP701A
A2001WV2-6P
FRONT V.IN
GND
GND
FRONT A.IN
SOUND GND
SOUND GND
FRONT A.IN
SPEAKER OUT
SOUND OUT
6
SOUND OUT
SPEAKER OUT
C1013_1
0.001 CH
L702
W5T29X7.5X19
AUDIO SIGNAL(REC)
PCB250
TEBB07
PCB010
TMB553
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
0.0022 X
120K 1/4W
R1002
1050V YK
C1002
47016V YK
C1001_1
47016V YK
C1011_1
10K
R1003
C1004
R1004
8.2K 1/4W
150V KANP
THE TIMETHIS INTERCONNECTION DIAGRAM IS THE LATEST ATNOTE:
BT001
R6RC/2P
ACCESSORY
TM101
EUR511300
ABC D E F GH
8
HS1001
763WAA0217
W804
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
AUDIO_OUT
SOUND+B
P.CON+8V
GND
SOUND_GND
A_MUTE
FRONT_V_IN
ABC D E F GH
FROM MICON/CHROMA
7
6
5
FROM POWER
4
FROM/TO MICON/CHROMA
3
2
1
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