XOCECO LC-27W18S, Руководство по обслуживанию

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No Yes
Yes No
( 5) , A certain channel fails to work properly
a), AV with no picture
Yes No
Yes No
b), S terminal with no picture
Yes No
Check periphery circuit
of power amplifier’s
back level
Check if there have signals
inputted from R827 and R824 to
power amplifier
Check periphery circuit of power
amplifier, power supply circuit and
circuit of pin MUTE
Check if correspondent
channels of N801
have input signal
Check periphery circuit of
N801
，
crystal oscillation
and power supply circuit
Follow the direction of audio
signal input to check each
channel
Check if C164 has input signal
Check if pin 2 of N506 has
input signal
Check if C164 and C165 have input signal
Check periphery circuit of N101,
crystal oscillation and power
supply circuit
There exits problems at the
place from socket of AV
terminal to N506
Check periphery circuit of
N506 and power supply circuit
Check periphery circuit of N101,
crystal oscillation and power supply
circuit
Check if pin 2 and pin 6 of N506
have input signal