20
LC-22AD1E
TROUBLE SHOOTING TABLE (Continued)
No sound
No sound
fr
om
speakers
No sound
fr
om
headphone
No sound
fr
om exter
nal
speaker
Chec
k all the microprocessor’s adjust process menu.
Is pin (60) of
IC3501 at
"H"?
Chec
k
IC3501 and
its
per
ipheral
par
ts
.
Is pin (43) of
IC3501 at
"L"?
Chec
k Q3508,
P101, P3501
har
ness and
their
per
ipheral
par
ts
.
Is pin (70) of
IC3501 at
"H"?
No sound
fr
om SCAR
T1
output line
No sound
fr
om SCAR
T2
output line.
Is output at
pins (36) and
(37) of IC3202
nor
mal?
Is output at
pins (33) and
(34) of IC3202
nor
mal?
Ye
s
No
Are input and
output of
IC3202 as
specified?
Chec
k
IC3202,
IC3403,
IC3402,
IC3405 and
their
per
ipheral
par
ts
.
Ye
s
No
Are output at
pins (1) and
(7) of IC3408
as specified?
Chec
k
IC3408 and
its
per
ipheral
par
ts
.
Ye
s
No
Are output
between pins
(2) and (3)
and between
pins (6) and
(7) of P3402
as specified?
Chec
k 1-Bit
amp and
their
per
ipheral
par
ts
.
Ye
s
No
Is pin (48) of
IC3501 at
"H"?
Chec
k
Q3401,
R
Y3401
and their
per
ipheral
par
ts
.
Ye
s
No
Chec
k
speak
ers and
their
per
ipheral
par
ts
.
Ye
s
Ye
s
Ye
s
No
Is pin (58) of
IC3501 at
"L"?
Chec
k
D3204,
Q3202 and
their
per
ipheral
par
ts
.
Ye
s
No
Ye
s
Ye
s
Ye
s
Are input and
output of
IC3203 as
spedfied?
Chec
k
IC3202,
IC3203 and
their
per
ipheral
par
ts
.
Ye
s
No
Chec
k the
headphone
and its
per
ipheral
par
ts
.
No
Chec
k Q3407,
R
Y3403 and
their
per
ipheral
par
ts
.
Chec
k
SCAR
T1
per
ipher
y
par
ts
.
Chec
k
SCAR
T2
per
ipher
y
par
ts
.
No sound
fr
om PHOTO
Audio out.
Is output at
pin (12) of
IC2510
nor
mal?
Chec
k the
"I2S-D
A-
OUT" line
.
Ye
s
No
Ye
s
Chec
k
IC1101 and
its per
ipheral
par
ts
.
Chec
k the
"TBUS"
line and
their
per
ipheral
par
ts
.
Is a speak
er
setup of
"Speak
er"
set as
"Exter
nal" ?
Summary of Contents for AQUOS LC-22AD1E
Page 4: ...4 LC 22AD1E SPECIFICATIONS Specifications are subject to change without prior notice ...
Page 5: ...5 LC 22AD1E Part name of Main unit OPERATION MANUAL ...
Page 6: ...6 LC 22AD1E Part name of Remote control unit ...
Page 8: ...8 LC 22AD1E Useful features Dgital TV features ...
Page 28: ...28 LC 22AD1E 7 ADJUSTMENT PROCESS MODE MENU LIST ...
Page 29: ...29 LC 22AD1E ...
Page 30: ...30 LC 22AD1E ...
Page 31: ...31 LC 22AD1E ...
Page 32: ...32 LC 22AD1E ...
Page 33: ...33 LC 22AD1E ...
Page 34: ...34 LC 22AD1E ...
Page 35: ...35 LC 22AD1E ...
Page 46: ...46 LC 22AD1E ...
Page 48: ...48 LC 22AD1E ...
Page 51: ...51 LC 22AD1E ...
Page 53: ...53 LC 22AD1E Pin functions of QS LCD CONTROL IC IC4512 RH iXA595WJN1Q ...
Page 57: ...58 6 5 4 3 2 1 A B C D E F G H LC 22AD1E AV Unit ...
Page 58: ...59 6 5 4 3 2 1 A B C D E F G H LC 22AD1E BLOCK DIAGRAM 1 2 POWER SOURCE BLOCK DIAGRAM ...
Page 62: ...65 6 5 4 3 2 1 A B C D E F G H LC 22AD1E SCHEMATIC DIAGRAM Ë INVERTER Unit ...
Page 64: ...68 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 22AD1E Ë R C LED Unit ...
Page 65: ...69 6 5 4 3 2 1 A B C D E F G H LC 22AD1E Ë OPERATION Unit ...
Page 66: ...70 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 22AD1E Ë EXT SP TERMINAL Unit ...
Page 67: ...71 6 5 4 3 2 1 A B C D E F G H LC 22AD1E Ë SP JACK Unit ...
Page 86: ...105 6 5 4 3 2 1 A B C D E F G H LC 22AD1E SP JACK Unit Side B SP JACK Unit Side A ...