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Hi guys. Please, I need help to repair this marantz pm488av receiver. The microcontroller blew and I need to replace it. I can get the chip uPD7803 (NEC), and put it in, but need help with the configuration of the chip. I'm in cpt. I've tried so many places but can't get reply and the last time...

I just saw I had to replace a microcontroller 80pin on Marantz pm488av . where do I go for the programming. Sent from my HUAWEI CUN-L22 using Tapatalk

Hi all. I got a Dixon mixing amp and after doing the usual circuit tests, I found that the led driver ic is blown. I've searched all off the local components suppliers and came up with nothing. The ic is a Panasonic AN6884 5 DOT LED driver ic. Its equivalent in NTE1561, but neither I can get...

I just bought a proline 600VA ups for a steal. It work fine, but i want to know what your opinions are on it. Is it any good? Sent from my 4027X using Tapatalk

I want your opinion plz I built a 3-in-1 bluetooth speaker, charging dock and bedside lamp out of second hand electronic parts and various items to make it look good. If i were to build a few of such items and sell it, would you buy it? Sent from my 4027X using Tapatalk

Hi all. SO, IM ALWAYS ON THE LOOKOUT FOR BARGAINS AND D.I.Y. ITS A PASSION. RECENTLY I HAD TO FIGURE OUT A WAY TO INSTALL A CCTV CAMERA OUTSIDE, BECAUSE OF CRIME. I GOT HOLD OF A VARI-FOCAL BULLET CAM AND FOUND AN OLD FILM PRODUCTION MONITOR AT A CHARITY SHOP FOR R50. THE INPUTS WAS WHAT GOT ME...

:puke:HI IM CLUELESS I HAVE A CCTV CAMERA. CAN I MAKE IT WORK WITH AN OLD DSTV DECODER AND OLD TUBE TV? IT DONT HAVE TO RECORD. THE CAM IS VARYFOCAL AND ANALOG

:facepalm: Hi there. Im in the middle of a DIY project. I repurpose any tech and other material to build practical, usefull and things you wont see everyday. So, my current project involves an old Blaupunkt turntable, a usb port and various other creature comforts. My usb port will be mp3...

:notworthy:Hi So, im busy with my latest DIY Repurposing project and i have hit a steel wall. Here is the setup so far:                               I have a Blaupunkt hifi turntable & cd player that some poor guy blew a hole into the amp circuit.                                   I have a...

So, i was reading a reply to one of my posts about how the guy wanted an under counter radio, and i replied to him with a hack i did a few years back. My sister likes music in the kitchen (busiest room in the house) so, i took apart an old head unit from a car. The space under the counter that...

Hi again. I posted earlier that i wanted to hardwire aux input directly to the amplifier chip (TDA7454). I did it and added a switch to change between cd audio and aux audio. FYI, IM BUILDING A BOOMBOX WITH A ''VISTEON 6500 RDS SINGLE DIN CAR RADIO Anyway, it works wonderfully. But, me being...

Hello again. So i have a question about this little chip. I'm busy adding aux input to an old single din car radio. The best way, is to tap into the cd player's cable, but cd player does not read cds, so in turn, the aux sound dont come through. So i got the data sheet of tda7454 and found the...

So i got a Blaupunkt turntable hi-fi, but............it came to me without amp circuit. I searched for the amp ic by following model and serial number, but get results from Pioneer dvd players. (So its true when they say ''GOOGLE IS LIKE A LAZY EMPLOYEE- ASK HIM ONE THING, HE GIVES YOU ALL THE...

Hi guys So, i dropped my lcd tv and repairing it is rediculous. So, i decided to repurpose the pcbs. I managed to make and external hdd from my old desktop hdd and it worked great when it was connected to the lcd tv. I want to make media player from the lcd tv main board. After hours of...

Hi. So, i have the following pc parts avail to me: 1) 500gb IDE hard drive 2) IDE - USB converter cable 3) ATX psu (which i use as my electronics bench power supply) 4) Tons of ATX power connectors 5) Bluetooth usb dongle IDEA: To revive music on hard drive (200gb worth) and connect to drive...

HI ALL IM NEEDING SOME POINTERS WITH A PROJECT, BEFORE I SCREW IT UP. IM BUILDING A DOCKING STATION/BLUETOOOTH SPEAKER BOX FOR MY DAUGHTER'S 16TH. I HAVE THE CHARGING DOCK  ALL SORTED. USING SANSUI BLUETOOTH SPEAKER(IT ALSO HAS AUX INPUT AND PHONE CAPABILITY) ALL THOSE THINGS ARE SORTED AND...

Hi. Im new on the forum. From cape town. Always trying new circuits and other innovative ideas. Maybe we can colaborate Hope to learn alot from the others