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Nasisira lagi Headunit Ko
09-13-2020, 05:14 PM
Post: #1
Nasisira lagi Headunit Ko
Hello. Naginstall na ako 2x ng touch screen headunit at laging nasisira ung mismong touch screen niya. Nagoon naman yung unit pero di na gumagana ung touch screen. Ang iniisip ko maling ground ung nakakasira pero di ko sure. Sa umpisa okay nmn pero nasisira after a ew months. Saan nilalagay ung ground ng HU natin sa G4 and possible ba na yun ang nakakasira? Thanks sa sasagot.
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09-13-2020, 11:15 PM
Post: #2
RE: Nasisira lagi Headunit Ko
(09-13-2020 05:14 PM)DukeofLancaster Wrote:  "Ang iniisip ko maling ground ung nakakasira pero di ko sure. Sa umpisa okay nmn pero nasisira after a ew months. Saan nilalagay ung ground ng HU natin sa G4 and possible ba na yun ang nakakasira? "

Ground connection?

I don't think so.. baka naman build quality.

Anong brand & model yan?



 

[Image: Qr4L2Qm.jpg][Image: Lt4LWVM.jpg]
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09-15-2020, 12:48 PM
Post: #3
RE: Nasisira lagi Headunit Ko
Thanks sa pagsagot sir. Nakamichi NAM1700r ung gamit ko now.
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09-16-2020, 10:04 AM
Post: #4
Nasisira lagi Headunit Ko
Hindi grounding yan kasi kung loose ground yan Sa umpisa pa lang ng installation magloloko na yan.


 

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09-16-2020, 11:58 AM
Post: #5
RE: Nasisira lagi Headunit Ko
So malamang tlga, nasira ung unit tama ba? Papapalitan ko nalang siguro or ibabalik ung stock. San nakalagay ung ground nung sa inyo?
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09-16-2020, 12:03 PM
Post: #6
Nasisira lagi Headunit Ko
(09-16-2020 11:58 AM)DukeofLancaster Wrote:  So malamang tlga, nasira ung unit tama ba? Papapalitan ko nalang siguro or ibabalik ung stock. San nakalagay ung ground nung sa inyo?


Usually included sa wiring harness ng headunit ang ground wire, pag nagpalit ka ng unit tinatap lang sa existing ground wire.

Yung exact location kung san nakaground mismo sa car chassis yun ang mahirap ipinpoint.


 
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09-16-2020, 01:57 PM
Post: #7
RE: Nasisira lagi Headunit Ko
As far as I can recall since nagbubukas/repair ako dati ng car stereos, ang chassis ground connection sa unit ay galing sa isang common point of connection sa chassis mula sa board puntang body ng unit following audio engineering design convention.

Ang power supply leads: positive & negative may sariling individual wire connected via the wiring harness.

You can verify in your unit if the negative wire lead has common connection w/ the metallic chassis body with the ohm meter function of a Digital Multi-meter if you have one.
========================================

I would like to make additional comments regarding your HU.

Nakamichi products seems to be good if they are legit Japan-made. However, w/ the proliferation of copies nowadays, it's very hard to tell whether one is authentic.

Temperature Limits of LCD Displays

"Heat from sunlight, as well as causing glare, can also heat up the sensor in a touchscreen and cause issues."
- copied from
https://zytronic.co.uk/news/overcoming-t...echnology/
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09-18-2020, 07:23 PM
Post: #8
RE: Nasisira lagi Headunit Ko
Sobrang helpful ng mga comments. Salamat. Siguro papagawa ko nalng sya sa susunod para sure. Sinubukan ko kasi DIY. Thank you for all responses.
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