Read Sharp LC-60UD20KN (serv.man2) Service Manual online
11
LC-60UD20
LC-70UD20
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH “ ” ( ) ARE
IMPORTANT FOR MAINTAINING THE SAFETY OF THE
SET. BE SURE TO REPLACE THESE PARTS WITH
SPECIFIED ONES FOR MAINTAINING THE SAFETY
AND PERFORMANCE OF THE SET.
IMPORTANT FOR MAINTAINING THE SAFETY OF THE
SET. BE SURE TO REPLACE THESE PARTS WITH
SPECIFIED ONES FOR MAINTAINING THE SAFETY
AND PERFORMANCE OF THE SET.
SCHEMATIC DIAGRAMS
Description of schematic diagrams:
VOLTAGE MEASUREMENT CONDITION:
1. The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 220-240V.
Signals are fed by a color bar signal generator for servicing purpose and the above voltages are measured with a
20k ohm/V tester.
20k ohm/V tester.
INDICATION OF RESISTOR & CAPACITOR:
RESISTOR
1. The unit of resistance “
1. The unit of resistance “
Ω ” is omitted. (K=kΩ=1000 Ω, M=MΩ).
2. All resistors are ± 5%, unless otherwise noted. (K= ± 10%, F= ± 1%, D= ± 0.5%)
3. All resistors are 1/16W, unless otherwise noted.
4. All resistors are 1/16W, unless otherwise noted.
3. All resistors are 1/16W, unless otherwise noted.
4. All resistors are 1/16W, unless otherwise noted.
CAPACITOR
1. All capacitors are μF, unless otherwise noted. (P=pF=μμ
1. All capacitors are μF, unless otherwise noted. (P=pF=μμ
F).
2. All capacitors are 50V, unless otherwise noted.
CAUTION:
This circuit diagram is original one, therefore there may be a
slight difference from yours.
slight difference from yours.
SAFETY NOTES:
1) DISCONNECT THE AC PLUG FROM THE AC
OUTLET BEFORE REPLACING PARTS.
2) SEMICONDUCTOR HEAT SINKS SHOULD BE
REGARDED AS POTENTIAL SHOCK HAZARDS
WHEN THE CHASSIS IS OPERATING.
WHEN THE CHASSIS IS OPERATING.
!
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