- 50 -
Audio output is no sound
Check control pin
AUDIO_SW_SE1’ 2 operation is
normal
Check Audio board power 12V is
correctly?
To measure audio board U1 output
waveform (1K Hz sinewave)
Check mute pin AUDIO_VOL_ON
is high or low
Yes
Yes
To measure audio board U1 output
waveform
Yes
Check GPIO control
pin(R277,R278) status
Check GPIO control
pin(R492) status
Check audio board U1
soldering or change another
chip
No
No
No
Check audio board U6(Power
AMP) soldering or change
another chip
No
Yes
Содержание DV650C
Страница 15: ... 15 3 4 2 OSD Table Generic for Version 2 4 1 ...
Страница 21: ... 21 3 5 Packing ...
Страница 22: ... 22 4 Disassembly Assembly 4 1 Exploded View ...
Страница 46: ... 46 5 4 OSD Operation Guide ...
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Страница 64: ... 64 Appendix 2 Physical Dimension Front View and Side view Fig 1 Physical Dimension Front View and Side view ...
Страница 65: ... 65 Appendix 3 I F Board ...
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