4. Troubleshooting
4.1.2.
No Sound (waveform when 1 KHz, -20 dB signal is input)
Che ck S pe a ke rs .
(S pe a ke r Cha nge )
Ye s
Ye s
No
(1)
Che ck CN7 input signa ls ?
(1 khz signa l)
Che ck MPEG DAC
outpout, 80, 81 , 82, 8 3, 84, 85 , 86, 87
of IC10 ES 8398?
Che ck VD3.3V_PW of I C10?
(Pin 8 3)
Che ck Po we r Line s.
(Che ck IC18)
No Soun d
No
Ye s
Re place IC10.
No
Che ck Ja ck Input.
Che ck MPEG DAC
powe r.
Che ck DAC outpu t signa l line s
be twe e n IC10 a nd IC1, IC5 .
Che ck MPEG Ou tpu t.
* Refe
r to w a ve pa tte rn
image of Fig. 4-1.
Copyright© 1995-2012 SAMSUNG. All rights reserved.
4-3