SERVICE MANUAL Remote Control Color
Television
DS20930 (U.S.A.)
(CANADA)
(MEXICO)
ORIGINAL VERSION
Chassis No. 20930-00
NOTE: Match the Chassis No. on
the unit’s back cover with
the Chassis No. in the
Service Manual.
If the Original Version
Service Manual Chassis
No. does not match the
unit’s, additional Service
Literature is required. You
must refer to “Notices” to the
Original Service Manual
prior to servicing the unit.
Contents
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . 2
Service Adjustments. . . . . . . . . . . . . . . . . . . 3 - 9
Purity and Convergence Adjustments. . . . 10 - 11
Service Hints . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Mechanical Disassemblies . . . . . . . . . . . . . . . 13
Chassis Electrical Parts List. . . . . . . . . . . 14 - 21
Cabinet Parts List . . . . . . . . . . . . . . . . . . . . . . 22
Component and Test Point Locations. . . . 23 - 25
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 26
Specifications
Power Rating . . . . . . . . . . . . . . . . . . . . . . 120V, 60Hz
Antenna Input Impedance . . . . . . . . . . . . . . . . . . 75Ω
UHF/VHF/CATV
Receiving Channel. . . . . . . . . . . . . . . . . . 2-13 (VHF),
14-69 (UHF),
01, 14-94, 95-125 (CATV)
Remote Ready . . . . . . . . . . . 26 Key Remote Control
Sound Output . . . . . . . . . . . . . . . . . . . . . . . . . 1 W/ch
Intermediate Frequency
Picture IF Carrier . . . . . . . . . . . . . . . . . . 45.75MHz
Sound IF Carrier. . . . . . . . . . . . . . . . . . . 41.25MHz
Color Sub Carrier . . . . . . . . . . . . . . . . . . 42.17MHz
Picture Tube . . . . . . . . . . . . . . . . . . . . . A51LVG896X
Semiconductors
Integrated Circuits. . . . . . . . . . . . . . . . . . . . . . . . . 9
Transistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Except within Tuner and RC Pre-Amp.
Cabinet Dimensions
Width. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 587mm
Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458mm
Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486mm
REFERENCE No. SM780088
DS20930, C3RK, PRODUCT CODE 111351429
