20
29K-FD5RU
29K-FG5RU
20-1
20-2
Check TU51.
TROUBLE SHOOTING FLOWCHART (Continued)
NO PICTURE
Does the snow noise appear
on the screen at maximum
contrast and brightness ?
A
Snow noise increase.
Does 5V appear at pin 7 of TU 51 ?
Check the PC+5V line.
No
Does 31V appear at pin 9 of TU 51 ?
Check +120V line at IC 753
and its related circuit.
Yes
No
Yes
No
Yes
TROUBLE SHOOTING FLOWCHART (Continued)
NO NORMAL SOUND
Set volume to maximum. Is
there any sound output signal
at pin 10 & 14 of IC 301 ?
Yes
No
Check if there
is sound input
signal at pin 2
& 21 of IC 301.
No
Check output
signal at pin
68, 69 of IC
2100 and its
related circuit.
Check
connection to
the speaker
No sound from the
speaker
No sound comes
out at AV-out J905
Check sound
output signal from
pin 92 & 93 of IC
2100 and its
related circuit.
Set volume to maximum. Is
there any sound output signal
at pin 10 & 14 of IC 302 ?
Yes
No
Check if there
is sound input
signal at pin 2
& 21 of IC 302.
No
Check Q301
and its related
circuit.
Check
connection to
the woofer
No sound from the
woofer
1*: for 29K-FD5RU
1*
Содержание 29K-FD5RU
Страница 24: ...24 29K FD5RU 29K FG5RU CHASSIS LAYOUT 29K FD5RU ...
Страница 25: ...25 29K FD5RU 29K FG5RU CHASSIS LAYOUT 29K FG5RU ...
Страница 26: ...26 29K FD5RU 29K FG5RU BLOCK DIAGRAMS 29K FD5RU ...
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Страница 28: ...28 29K FD5RU 29K FG5RU BLOCK DIAGRAMS 29K FG5RU ...
Страница 29: ...29 29K FD5RU 29K FG5RU ...
Страница 32: ...32 29K FD5RU 29K FG5RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J SCHEMATIC DIAGRAM CRT UNIT ...
Страница 33: ...33 29K FD5RU 29K FG5RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J PIP UNIT 29K FD5RU ONLY ...
Страница 34: ...34 29K FD5RU 29K FG5RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J MAIN UNIT 29K FD5RU ...
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Страница 36: ...36 29K FD5RU 29K FG5RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J MAIN UNIT 29K FG5RU ...
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Страница 38: ...38 29K FD5RU 29K FG5RU 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J FRONT UNIT ...
Страница 39: ...39 29K FD5RU 29K FG5RU 10 11 12 13 14 15 16 17 18 19 ...