Components identified by mark have special characteristics important for safety.
When replacing any of these components, use only manufacture's specified parts.
Important Safety Notice
Notes:
1. Resistor
All resistors are cabon 1/4W resistor, unless marked as follows:
Unit of resistance is OHM [
W
] (K=1,000, M=1,000,000).
: Nonflammable
: Metal Oxide
: Solid
: Metal Film
: Wire Wound
: Fuse:
2. Capacitor
All capacitors are ceramic 50V capacitor, unless marked as follows:
Unit of capacitance is
m
F, unless otherwise noted.
: Temperature Compensation
: Electrolytic
: Polyester
: Bipolar
: Metalized Polyester
: Dipped Tantalum
: Polypropylene
: Z-Type
3. Coil
Unit of inductance is
m
F, unless otherwise noted.
4. Test Point
: Test Point position
5. Earth Symbol
: Chassis Earth (Cold)
: Line Earth (Hot)
6. Voltage Measurement
Voltage is measured by a DC voltmeter.
Conditions of the measurement are the following:
Power Source ................................................... AC 120V, 50/60Hz
(US model)/AC220-240V,
50/60Hz (Except US)
Receiving Signal ............................................... Colour Bar signal (RF)
All customer's controls ...................................... Maximum positions
7. Number in red circle indicates waveform nember.
(See waveform pattern table.)
8. When arrow mark ( ) is found, connection is easily found from the direction of arrow
9. Indicates the major signal flow.
: Video
Audio
10. This schematic diagram is the latest at the time of printing and subject to change without
notice.
+
-
M
m
T
Z
NP
Remarks:
1. The Power 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. Take the
follwing precautions.
All circuits, except the Power Circuit, are cold.
Precautions
a. Do not touch the hot part or the hot and cold parts at the same time or you may
be shocked.
b. Do not short- circuit the hot and cold circuits or a fuse may blow and parts may
break.
c. Do not connect an instrument, such as an oscilloscope, to the hot and cold
circuits simultaneously or a fuse may blow.
Connect the earth of instruments to the earth connection of the circuit being
measured.
d. Make sure to disconnect the power plug before removing the chassis.
2. Following diodes are interchangeable.
MA150- MA162 (Replacement part)
13 Block and Schematic Diagrams
13.1. Schematic Diagram Notes
TH-42PW4 / TH-42PWD4
69
Summary of Contents for TH-37PW4
Page 4: ...2 Service Hint 4 TH 37PW4 TH 37PWD4 ...
Page 12: ...TH 37PW4 TH 37PWD4 12 ...
Page 13: ...4 Schematic Diagram 4 1 C1 Board Schematic Diagram TH 37PW4 TH 37PWD4 13 ...
Page 14: ...4 2 C2 Board Schematic Diagram TH 37PW4 TH 37PWD4 14 ...
Page 15: ...4 3 C3 Board Schematic Diagram TH 37PW4 TH 37PWD4 15 ...
Page 16: ...4 4 C4 Board Schematic Diagram TH 37PW4 TH 37PWD4 16 ...
Page 17: ...4 5 SU Board Schematic Diagram TH 37PW4 TH 37PWD4 17 ...
Page 18: ...4 6 SD Board Schematic Diagram TH 37PW4 TH 37PWD4 18 ...
Page 19: ...4 7 SS SS4 SS5 and S1 Board Schematic Diagram TH 37PW4 TH 37PWD4 19 ...
Page 20: ...TH 37PW4 TH 37PWD4 20 ...
Page 22: ...TH 37PW4 TH 37PWD4 22 ...
Page 26: ...7 Replacement Parts List 7 1 Relpacement Parts List Notes 26 TH 37PW4 TH 37PWD4 ...
Page 76: ...4 Service Hint 7 TH 42PW4 TH 42PWD4 ...
Page 77: ...5 Location of Lead Wiring 8 TH 42PW4 TH 42PWD4 ...
Page 101: ...10 Option Setting How to access the Option menu 32 TH 42PW4 TH 42PWD4 ...
Page 103: ...34 TH 42PW4 TH 42PWD4 ...
Page 104: ...11 IC Block Diagram TH 42PW4 TH 42PWD4 35 ...
Page 105: ...INPUTA A TH 42PW4 TH 42PWD4 36 ...
Page 142: ...13 5 P Board US model Schematic Diagrams TH 42PW4 TH 42PWD4 73 ...
Page 144: ...13 7 P1 Board Except US Schematic Diagrams TH 42PW4 TH 42PWD4 75 ...
Page 145: ...13 8 F and P3 Board Except US Schematic Diagram TH 42PW4 TH 42PWD4 76 ...
Page 146: ...13 9 P5 P6 P7 and P8 Board Except US Schematic diagram TH 42PW4 TH 42PWD4 77 ...
Page 148: ...13 11 HX Board Schematic Diagrams TH 42PW4 TH 42PWD4 79 ...
Page 149: ...13 12 H Board Option TY 42TM4H Schematic Diagram TXN H10JKS TH 42PW4 TH 42PWD4 80 ...
Page 151: ...13 14 HY Board 1 2 Option TY 42TM4Y Schematic Diagrams TH 42PW4 TH 42PWD4 82 ...
Page 152: ...13 15 HY Board 2 2 Option TY 42TM4Y Schematic Diagrams TH 42PW4 TH 42PWD4 83 ...
Page 153: ...13 16 HZ Board 1 2 Option TY 42TM4Z Schematic Diagram TH 42PW4 TH 42PWD4 84 ...
Page 154: ...13 17 HZ Board 2 2 Option TY 42TM4Z Schematic Diagram TH 42PW4 TH 42PWD4 85 ...
Page 156: ...13 19 J Board 1 5 Schematic Diagrams TH 42PW4 TH 42PWD4 87 ...
Page 157: ...13 20 J Board 2 5 Schematic Diagrams TH 42PW4 TH 42PWD4 88 ...
Page 158: ...13 21 J Board 3 5 and H3 Board Schematic Diagrams TH 42PW4 TH 42PWD4 89 ...
Page 159: ...13 22 J Board 4 5 Schematic Diagrams TH 42PW4 TH 42PWD4 90 ...
Page 160: ...13 23 J Board 5 5 Schematic Diagrams TH 42PW4 TH 42PWD4 91 ...
Page 162: ...13 25 D Board 1 14 Schematic Diagrams TH 42PW4 TH 42PWD4 93 ...
Page 163: ...13 26 D Board 2 14 Schematic Diagrams TH 42PW4 TH 42PWD4 94 ...
Page 164: ...13 27 D Board 3 14 Schematic Diagrams TH 42PW4 TH 42PWD4 95 ...
Page 165: ...13 28 D Board 4 14 Schematic Diagrams TH 42PW4 TH 42PWD4 96 ...
Page 166: ...13 29 D Board 5 14 Schematic Diagrams TH 42PW4 TH 42PWD4 97 ...
Page 167: ...13 30 D Board 6 14 Schematic Diagrams TH 42PW4 TH 42PWD4 98 ...
Page 168: ...13 31 D Board 7 14 Schematic Diagrams TH 42PW4 TH 42PWD4 99 ...
Page 169: ...D Board Schematic Diagram is Continued TH 42PW4 TH 42PWD4 100 ...
Page 170: ...13 32 D Board 8 14 Schematic Diagrams TH 42PW4 TH 42PWD4 101 ...
Page 171: ...13 33 D Board 9 14 Schematic Diagrams TH 42PW4 TH 42PWD4 102 ...
Page 172: ...13 34 D Board 10 14 Schematic Diagrams TH 42PW4 TH 42PWD4 103 ...
Page 173: ...13 35 D Board 11 14 Schematic Diagrams TH 42PW4 TH 42PWD4 104 ...
Page 174: ...13 36 D Board 12 14 Schematic Diagrams TH 42PW4 TH 42PWD4 105 ...
Page 175: ...13 37 D Board 13 14 Schematic Diagrams TH 42PW4 TH 42PWD4 106 ...
Page 176: ...13 38 D Board 14 14 Schematic Diagrams TH 42PW4 TH 42PWD4 107 ...
Page 177: ...13 39 C1 Board Schematic Diagrams TH 42PW4 TH 42PWD4 108 ...
Page 178: ...13 40 C2 Board Schematic Diagrams TH 42PW4 TH 42PWD4 109 ...
Page 179: ...13 41 C3 Board and V1 Board Schematic Diagrams TH 42PW4 TH 42PWD4 110 ...
Page 180: ...13 42 C4 Board Schematic Diagrams TH 42PW4 TH 42PWD4 111 ...
Page 182: ...13 44 SC Board 1 2 Schematic Diagrams TH 42PW4 TH 42PWD4 113 ...
Page 183: ...13 45 SC Board 2 2 Schematic Diagrams TH 42PW4 TH 42PWD4 114 ...
Page 185: ...13 47 SU Board Schematic Diagrams TH 42PW4 TH 42PWD4 116 ...
Page 186: ...13 48 SD Board Schematic Diagrams TH 42PW4 TH 42PWD4 117 ...
Page 188: ...13 50 SS SS2 SS3 and S1 Board Schematic Diagrams TH 42PW4 TH 42PWD4 119 ...
Page 189: ...TH 42PW4 TH 42PWD4 120 ...
Page 191: ...TH 42PW4 TH 42PWD4 122 ...
Page 195: ...16 Replacement Parts List 16 1 Relpacement Parts List Notes 126 TH 42PW4 TH 42PWD4 ...
