Author Topic: car stereo my power pero no sound... (Read 1377 times)

gie62 · « **Reply #20 on:** July 31, 2010, 12:25:45 PM »

ano yung 6volts na nasusukat mo sa terminal ng speaker, AC o DC? kung DC yan, shorted yang amp ic mo. yung muting transistor nakaconnect sa pin 14. dapat di iinit yang ic pag hindi tumutunog o naka mute ka..

Philippine Electronics Forum · « **Reply #20 on:** July 31, 2010, 12:25:45 PM »

Woots29 · « **Reply #21 on:** July 31, 2010, 02:05:53 PM »

^kung short di sana 12volts lumabas

Philippine Electronics Forum · « **Reply #21 on:** July 31, 2010, 02:05:53 PM »

gie62 · « **Reply #22 on:** July 31, 2010, 02:46:27 PM »

sa terminal ng speaker may masusukat kang 6volts dc???

Philippine Electronics Forum · « **Reply #22 on:** July 31, 2010, 02:46:27 PM »

labgruppen · « **Reply #23 on:** July 31, 2010, 02:58:40 PM »

Quote from: gie62 on July 31, 2010, 02:46:27 PM

sa terminal ng speaker may masusukat kang 6volts dc???

kung BTL, yes meron dapat masukat na Vs/2 sa spkr terminals(+ and -), with respect to ground.

Philippine Electronics Forum · « **Reply #23 on:** July 31, 2010, 02:58:40 PM »

Woots29 · « **Reply #24 on:** July 31, 2010, 03:17:41 PM »

un ung sinasabi kong half of the supply voltage thanks sir lab

eh nakaconfigure ung circuit sa BTL mode (bridge tied load)

kaya pag nagaaus kami ng btl na amp, pinapalabas muna namin ang

6 to 6.5 volts sa output para makita kung working talaga ung amp

without putting a signal to for testing

Philippine Electronics Forum · « **Reply #24 on:** July 31, 2010, 03:17:41 PM »

gie62 · « **Reply #25 on:** July 31, 2010, 04:59:49 PM »

Quote from: labgruppen on July 31, 2010, 02:58:40 PM

kung BTL, yes meron dapat masukat na Vs/2 sa spkr terminals(+ and -), with respect to ground.

ah,okay...

liam john · « **Reply #26 on:** July 31, 2010, 05:15:04 PM »

Quote from: gie62 on July 31, 2010, 12:25:45 PM

ano yung 6volts na nasusukat mo sa terminal ng speaker, AC o DC? kung DC yan, shorted yang amp ic mo. yung muting transistor nakaconnect sa pin 14. dapat di iinit yang ic pag hindi tumutunog o naka mute ka..

dc po un nasusukat ko s trminal ng spkr to gnd...

liam john · « **Reply #27 on:** July 31, 2010, 05:30:53 PM »

Quote from: gie62 on July 31, 2010, 12:25:45 PM

ano yung 6volts na nasusukat mo sa terminal ng speaker, AC o DC? kung DC yan, shorted yang amp ic mo. yung muting transistor nakaconnect sa pin 14. dapat di iinit yang ic pag hindi tumutunog o naka mute ka..

isa pang ikinalilito ko bkit umiinit un ic ganung hndi pa naman tumutunog....

gie62 · « **Reply #28 on:** July 31, 2010, 05:36:14 PM »

ilang volts ang nasusukat mo sa pin16?

liam john · « **Reply #29 on:** August 01, 2010, 12:38:12 AM »

Quote from: Woots29 on July 31, 2010, 03:17:41 PM

un ung sinasabi kong half of the supply voltage thanks sir lab

eh nakaconfigure ung circuit sa BTL mode (bridge tied load)

kaya pag nagaaus kami ng btl na amp, pinapalabas muna namin ang

6 to 6.5 volts sa output para makita kung working talaga ung amp

without putting a signal to for testing

ask ko lang po kung mgkaiba ba un tda 8561q sa tda 8561??? ksi tnest ko un mga resistance ng pins mgkaiba po...

liam john · « **Reply #30 on:** August 01, 2010, 12:46:01 AM »

Quote from: gie62 on July 31, 2010, 05:36:14 PM

ilang volts ang nasusukat mo sa pin16?

ndi ko po mkita un data sheet ko... pwde po b mlaman kung san un purpose ng pin no.16???

gie62 · « **Reply #31 on:** August 01, 2010, 05:15:54 AM »

parehas lang yan.
http://www.datasheet4u.com/html/T/D/A/TDA8561_PhilipsSemiconductors.pdf.html
yan ang data sheet

Philippine Electronics Forum · « **Reply #31 on:** August 01, 2010, 05:15:54 AM »

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