Sharp LC-32GA5E (serv.man9) Service Manual ▷ View online
25
LC-26GA5E
LC-32GA5E
LC-32GA5E
LC-26GA5E
LC-32GA5E
LC-32GA5E
4. No sound (1 / 2)
No sound comes out
No sound comes out at UHF/VHF reception?
No external input sound scart 1 and Ext 3
comes out
Is the output signal pin 123 SPL and pin 124 SP
R
NO
Check IC1001 and
<Scart 1>
of IC1001 as specified?
peripheral circuits
Is the LI1 audio signal inputted from pin (6) o
f
input terminal SC1451 to pin 114 of IC1001?
YES
Is the RI1 audio signal inputted from pin (2) o
f
Is the output signal pin 1 and pin 7 of IC1351
NO
Check IC 1351 and
input terminal SC1451 to pin 114 of IC1001?
as specified?
peripheral circuits
<Ext 3 >
YES
Is the LI2 audio signal inputted from J401
Is the input signal pin 11 and pin 15 of IC1301
NO
Check J 402
connector to pin 116 of IC 1001 ?
as specified?
Is the RI2 audio signal inputted from J401
YES
connector to pin 115 of IC 1001 ?
Is the output signal pin 26 and pin 27 of IC1301
NO
Check IC 1301 and
YE
S
as specified?
peripheral circuits
YES
Check speakers
No external input sound scart 2 and Ex 5
comes out
<Scart 2>
No external input sound Ex 4 comes out
Is the L audio signal inputted from pin (6) o
f
input terminal SC1452 to pin 15 of IC401?
Is the L1 audio signal inputted from pin (2) o
f
Is the inputted signal from J1901 to
YES
input terminal SC1452 to pin 2 of IC1401?
input terminals 4 and 11 of IC1401?
<Ext 5>
N
O
Is the L audio signal inputted from J402
connector to pin 12 of IC 1401 ?
Check Components Unit Board and peripheral parts
Is the R audio signal inputted from J402
connector to pin 1 of IC 1401 ?
YE
S
Check IC1401 and
NO
Is the output signal pin 3 and pin 13 of IC1401
peripheral circuits
as specified?
YE
S
Is the input signal pin 117 RI3 and pin 118 LI3
of IC1001 as specified?
YES
26
LC-26GA5E
LC-32GA5E
LC-32GA5E
LC-26GA5E
LC-32GA5E
LC-32GA5E
5. No sound (2 / 2)
No sound comes out
No external output
No external output sound
No external output
sound scart 1 comes out
scart 2 comes out
sound Ext 3 comes out
A
re audio output terminal
No
Check signal 2S-mute
No
A
re audio output terminal o
f
A
re audio output terminal o
f
No
Check signal 2S-mute
of connector SC1451 pins (1)
and SS mute and
connector Sc1452 as specified ?
connector J 401 as specified ?
and SS mute and
and (3) as specified?
peripheral circuit
Yes
Yes
peripherical circuit
Yes
A
re audio output pins 122 an
d
No
Check IC 1001 and
A
re audio output terminal of
No
Check IC1402 and
121 of IC1001 as specified ?
peripheral circuits
IC 1402 pins 1 and 7 as specified?
peripheral components
Yes
A
re audio output terminal o
f
No
Check IC 1001 and
IC 1001 out R(119) and out L (120)
peripheral circuits
as specified ?
Switch pin 6 of IC1201 from 0,5 V in TV
No
Check Q1203, Q1202, D1205
mode to 5V in radio mode?
and peripherical components
Yes
Check IC 1201 and peripherical circuits
No sound comes out in radio reception
26
LC-26GA5E
LC-32GA5E
LC-32GA5E
LC-26GA5E
LC-32GA5E
LC-32GA5E
5. No sound (2 / 2)
No sound comes out
No external output
No external output sound
No external output
sound scart 1 comes out
scart 2 comes out
sound Ext 3 comes out
A
re audio output terminal
No
Check signal 2S-mute
No
A
re audio output terminal o
f
A
re audio output terminal o
f
No
Check signal 2S-mute
of connector SC1451 pins (1)
and SS mute and
connector Sc1452 as specified ?
connector J 401 as specified ?
and SS mute and
and (3) as specified?
peripheral circuit
Yes
Yes
peripherical circuit
Yes
A
re audio output pins 122 an
d
No
Check IC 1001 and
A
re audio output terminal of
No
Check IC1402 and
121 of IC1001 as specified ?
peripheral circuits
IC 1402 pins 1 and 7 as specified?
peripheral components
Yes
A
re audio output terminal o
f
No
Check IC 1001 and
IC 1001 out R(119) and out L (120)
peripheral circuits
as specified ?
Switch pin 6 of IC1201 from 0,5 V in TV
No
Check Q1203, Q1202, D1205
mode to 5V in radio mode?
and peripherical components
Yes
Check IC 1201 and peripherical circuits
No sound comes out in radio reception
26
LC-26GA5E
LC-32GA5E
LC-32GA5E
LC-26GA5E
LC-32GA5E
LC-32GA5E
5. No sound (2 / 2)
No sound comes out
No external output
No external output sound
No external output
sound scart 1 comes out
scart 2 comes out
sound Ext 3 comes out
A
re audio output terminal
No
Check signal 2S-mute
No
A
re audio output terminal o
f
A
re audio output terminal o
f
No
Check signal 2S-mute
of connector SC1451 pins (1)
and SS mute and
connector Sc1452 as specified ?
connector J 401 as specified ?
and SS mute and
and (3) as specified?
peripheral circuit
Yes
Yes
peripherical circuit
Yes
A
re audio output pins 122 an
d
No
Check IC 1001 and
A
re audio output terminal of
No
Check IC1402 and
121 of IC1001 as specified ?
peripheral circuits
IC 1402 pins 1 and 7 as specified?
peripheral components
Yes
A
re audio output terminal o
f
No
Check IC 1001 and
IC 1001 out R(119) and out L (120)
peripheral circuits
as specified ?
Switch pin 6 of IC1201 from 0,5 V in TV
No
Check Q1203, Q1202, D1205
mode to 5V in radio mode?
and peripherical components
Yes
Check IC 1201 and peripherical circuits
No sound comes out in radio reception
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