Sharp LC-26SA1E Service Manual

LC-26SA1E/RU, LC-32SA1E/RU
6 – 3
No sound from external input devices (2)
No sound from an external input device connected to EXT1
(SCART1).
<EXT1>
Is IN1-L audio signal sent from pin (6) of SCART1 terminal
(J1101) to pin (14) of IC3002 (VCT)?
Is IN1-R audio signal sent from pin (2) of SCART1 terminal
(J1101) to pin (13) of IC3002 (VCT)?
NO Check pins (6) and (2) of SCART1 and connection to an external
input device.
YES
Is the audio signal properly sent from pins (28) and (27) of
IC3002?
NO Check IC3002 or peripheral circuits.
YES
Is the audio signal of pins (1) and (7) of IC303 (OP-AMP) sent
properly?
NO Check IC303 or peripheral circuits.
YES
Is the audio output signal of pins (13) and (16) of IC302/IC301
(MAIN-AMP) normal?
NO Check IC302/IC301 (MAIN-AMP), HEADPHONE and peripheral
circuits.
YES
Check CONNECTOR (P301) and Speaker (right and left).
No sound from external input devices (2)
No sound from an external input device connected to EXT2
(SCART2).
<EXT2>
Is IN2-L audio signal sent from pin (27) of SCART2 terminal
(J1101) to pin (12) of IC3002 (VCT)?
Is IN2-R audio signal sent from pin (23) of SCART2 terminal
(J1101) to pin (11) of IC3002 (VCT)?
NO Check pins (27) and (23) of SCART2 and connection to an
external input device.
YES
Is the audio signal properly sent from pins (28) and (27) of
IC3002?
NO Check IC3002 or peripheral circuits.
YES
Is the audio signal of pins (1) and (7) of IC303 (OP-AMP) sent
properly?
NO Check IC303 or peripheral circuits.
YES
Is the audio output signal of pins (13) and (16) of IC302/IC301
(MAIN-AMP) normal?
NO Check IC302/IC301 (MAIN-AMP), HEADPHONE and peripheral
circuits.
YES
Check CONNECTOR (P301) and Speaker (right and left).

Sharp LC-26SA1E Specifications

General

Brand	Sharp
Model	LC-26SA1E
Category	LCD TV
Language	English