Author Topic: CCTV Camera Repair Fortec DWS-6060H - Identifying component  (Read 1083 times)

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Offline kammysz

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CCTV Camera Repair Fortec DWS-6060H - Identifying component
« on: February 20, 2016, 11:39:37 am »
Hello,
I have a CCTV Camera Fortec DWS-6060h. It contains two cameras - one is for black and white picture and the other one only for colour picture. The colour one doesn't send a signal. It turns out that two elements were burned out. One is tantalum capacitor on signal line and the second is strange component by Microchip. It is marked only with digits: 934 1031. I measured it and it is shorted between legs: 1,2 and 4. Does anyone of you know what kind of element is it? I am attaching photos of PCB and this burned out element.
 

Offline bktemp

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Re: CCTV Camera Repair Fortec DWS-6060H - Identifying component
« Reply #1 on: February 20, 2016, 12:06:58 pm »
One is tantalum capacitor on signal line and the second is strange component by Microchip.
It is not Microchip but Mitsumi: MM1031, Video Amplifier
 

Offline kammysz

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Re: CCTV Camera Repair Fortec DWS-6060H - Identifying component
« Reply #2 on: February 20, 2016, 12:29:34 pm »
Thank you :) Logo on chip leads to Microchip. This Mitsumi chip has VCC=5V and supply voltage in circuit is 12V. Now I have to only find something similar on higher Supply Voltage.

EDIT: I checked again supply voltage and it is 5V Line not 12V, I made mistake at previous measurements.
« Last Edit: February 20, 2016, 01:41:56 pm by kammysz »
 


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