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TROUBLE SHOOTING CHART
NO Picture
Check point:
If pin3 of U301 has vibrate signal
Replace the U301 TEA1523P
Solution:
Replace the R5 or U2
Solution:
Replace the Diode D310
Solution:
Check if F301 Tr301 L031 D302 D303
D304 Is damaged
GO
NO
YES
YES
Standby LED does not
light
Check point:
The output voltage of VCC is 5V+/- 5%
Observe: If the LED can be lighted up again when the R5 on
front panel Board is shot circuit manually.
Check point:
The voltage of the anode of
capacitor C305 is over 150V
Observe: N/A
NO
Check point:
The pin1 of C303 is 2.5V
Observe: N/A
NO
Yes
NO
4-1
Содержание DVD590M
Страница 30: ...FRONT BOARD Top Side 7 3 7 3 FRONT BOARD Bottom Side ...
Страница 35: ...KARAOKE ECHO BOARD 8 4 KARAOKE AMPLIFIER BOARD 8 4 ...
Страница 39: ...POWER AV BOARD 9 3 9 3 ...
Страница 41: ...MAIN ENCASING EXPLODED VIEW 10 1 ...
Страница 43: ...Version 1 0 Initial release REVISION LIST 11 1 ...