Toshiba 20AR31 Service Manual - Page 2
Browse online or download pdf Service Manual for TV Toshiba 20AR31. Toshiba 20AR31 36 pages. Toshiba color television service manual
Print Page20A R 21
AUT O V OL T AGE
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its
original condition and only parts identical to those specified should be used.
» ELECTRICAL SPECIFICATIONS ......................................................................................................... 1
» IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................. 2
» LOCATION OF USER'S CONTROL ..................................................................................................... 4
» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................ 5
» CHASSIS LAYOUT ............................................................................................................................. 13
» BLOCK DIAGRAM .............................................................................................................................. 15
» SCHEMATIC DIAGRAMS ................................................................................................................... 20
» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 28
» REPLACEMENT PARTS LIST ............................................................................................................ 32
» PACKING OF THE SET ...................................................................................................................... 39
POWER INPUT ........................................ 110-220 V AC 50/60 Hz
POWER RATING
20AR21 ................................................................................ 72 W
20AR31 ................................................................................ 79 W
PICTURE SIZE .......................................... 1,192 cm
CONVERGENCE ............................................................. Magnetic
SWEEP DEFLECTION .................................................... Magnetic
FOCUS ............................................................... QPF Electrostatic
INTERMEDIATE FREQUENCIES
Picture IF Carrier Frequency ..................................... 45.75 MHz
Sound IF Carrier Frequency ...................................... 41.25 MHz
Color Sub-Carrier Frequency .................................... 42.17 MHz
AUDIO POWER
OUTPUT RATING
20AR21 ................................... 1.5 + 1.5 W (at 10% distortion)
20AR31 ................................... 3.0 + 3.0 W (at 10% distortion)
20A R 31
MT S ST ER EO
AUT O V OL T AGE
MODELS
CONTENTS
ELECTRICAL SPECIFICATIONS
SPEAKER
2
ANTENNA INPUT IMPEDANCE
TUNING RANGES
(Nominal)
1
1
COLOR TELEVISION
Chassis No. MSA
20AR21
20AR31
SIZE ................................................................ 9
VOICE COIL IMPEDANCE
20AR21 ....................................................... 32 ohm at 400 Hz
VHF/UHF ..................................................... 75 ohm Unbalanced
VHF-Channels ............................................................... 2 thru 13
UHF-Channels ............................................................ 14 thru 69
CATV Channels ........................................................... 1 thru 125
Specifications are subject to change without
prior notice.
S49F614LK20A/
Page
5 cm (Round)