Panasonic TX-L32X10B

Unusual for one of these to appear completely dead, I assumed a blown fuse or a power supply failure of some kind. On investigation there was mains getting to the power supply panel but the main relay wasn’t being fired. There was no standby voltage to the main panel so it had to be the standby section of the power supply. I was working blind because, although I was able to download a service manual, there was no ...

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Bang and Olufsen Beocentre 4000

This came in with a loud hum on both speakers, tracked to a leaky electrolytic in the power supply, no outward sign that the capacitor was faulty, I say that because people are quick to say “look for bulging caps”, well they don’t have to bulge to be faulty! So I first tested it on the built in FM radio…only one channel working…great!  Luckily I was able to download the service manual and using a scope work back ...

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Sony HP-211A Music System

I didn’t hold out much hope for this one as it had been in a loft for several years and the turntable wasn’t turning. On inspection I found that the rubber suspension on the turntable motor had perished allowing the motor to drop down on it’s mountings, meaning the jockey wheel was no longer in contact with the inside of the platter. Being 50 years old it was no surprise that the required parts were no longer available ...

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Denon minidisc repair

I bought this for my personal use, good old eBay, would have been good if it actually worked, so I stripped it down and found a leaky 1 Farad capacitor, and that’s all it was, all up and running now, so not so bad after all.

Denon mindisc repair

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Leak 2000 receiver

Had this one in apparently not working, well actually it was but none of the bulbs in the display were working, this was down to continuity on one bulb holder, once that was done at least it looked like it was working. Apart from that it had some scratchy pots which were quickly sorted out and is now running on test and sounding very nice.

Leak 2000 receiver

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DMR-EZ48 Repair

Panasonic DMR-EZ48 repair

I had a couple of Panasonic recorders in for repair this week, this one was the combined DVD and VHS recorder, a very popular machine and definitely worth the effort to repair. It had the U81 fault code in the display, a common fault and one of the easier to ...

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Panasonic NV-HD650

I used to repair these videos by the dozen, a very common fault was not loading or ejecting the tape…and if the tape is stuck in the loading tray it makes getting the thing to pieces very difficult. Anyway, there’s a small sleeve on the spindle of the loading motor, it couples the motor to the worm gear, when it splits the spindle just spins with none of the force being transferred to the worm gear. Glueing isn’t ...

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Arcam Alpha 7 CD Player

I had this one in with distorted audio, plus with no disc playing it produced a bad hum through the amp. First thing to do was rule out the amp…all other sources worked perfectly so I was quickly able to rule that out. My first assumption was that the power supply was allowing ripple on to one of the secondary supplies, and on removing the case I was presented with four bulging electrolytics, as it turned out they ...

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More trouble with trees and satellite reception

This was an existing customer at an old manor house, they had used me for satellite problems in the past and now called me out to see if I could find somewhere more accessible for the satellite dish. It had started on the front wall of the house but was now on a pole so high it needed scaffolding to reach. Now, once again it was being blocked by the surrounding trees and they asked me to find ...

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The Sony TC-K81 Tape Deck

I had this lovely old tape deck dropped in for repair recently, my customer had recently bought it and had been told it needed belts, this seemed reasonable seeing as it was built around 1980, he even brought the belts for me to fit. But it was soon apparent that he had had a ...

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The Sharp VZ-3150

 

I’ve had a couple of these in for repair over the last year, when working well they’re a pretty good Hi-Fi with a sought after retro vibe.

This one, however, arrived in a pretty poor state, it looked like it had been in someone’s outside shed for the last twenty years, the recessed screw holes in the back of the cabinet were full of debris, not sure what it was though, dirt / spider web or something ...

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Week 3 2020

Monday

A bit of a puzzle this morning, I had to go to Sticklepath near Washford where they were receiving a very poor signal from the Midlands. I discounted the Midlands remark, assuming they were just watching the ITV high definition channel, in which case you would get Midlands news. When I got there the main problem was in the Granny annex and was being caused by one of those moulded white aerial leads, they are usually bought from ...

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Week 2 2020

Monday

First job was out in Burrow, a quick set up of a second hand Sony tv she had been given by a friend. An easy enough job once I had run the gauntlet of six Jack Russells, once on the way in and once on the way out.

Only two jobs in the afternoon, a little advice in Staunton lane regarding the purchase of a new tv, plus the set up of a Humax PVR ...

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Week 1 2020

Thursday

First call this year was a farm bungalow in Cutcombe suffering from no / poor signal. They had a pretty poor, but recently fitted, log periodic aerial on the chimney. In this area that was not going to be enough so we discussed alternatives such as a longer pole, a larger aerial and amplifiers, but I made sure they knew there was no guarantee it was going to be a perfect fix. In the end we settled on ...

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Problems with the Carhampton relay

Since mid July I’ve been getting more and more reports of problems receiving the Carhampton relay. My first thought was that the relay had a fault and I reassured my customers that it would be up and running again in a couple of days…but it wasn’t. I had first been contacted by three of my customers in Old Cleeve and one in West Quantoxhead reporting a loss of local channels and it soon became clear that the fault ...

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Aerial Groups

These last few weeks have been very busy with the change of frequency on the Mendip transmitter. The BBC channels which were being transmitted on channel 49 have moved to channel 32, on the whole this hasn’t been a problem but I have come across a couple of instances where group C/D aerials were being used. Probably a good time to explain aerial grouping then.

In the past all frequencies from Mendip were in the C/D range, ...

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Sharp VZ3000

Another Sharp vertical HiFi in for repair, this one in very clean condition. According to it’s owner it had been bought new 36 years ago and then been stored behind a sofa for many years. All the belts needed replacing, the turntable belt was almost in a liquid state and had to be peeled from the platter, all the others…three on the tape deck and one on the door mechanism had lost their elasticity. New styli were fitted ...

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Pioneer SA-6200

I had this one in for repair recently, according to it’s owner it was bought second hand in the 1980’s and has never gone wrong, if only modern equipment was that well built!

It had gone down on one channel and was brought in with it’s tuner which had no backlight to it’s display. The tuner was an easy place to start, apart from a tricky dismantling job the bulbs behind the display were easy enough to ...

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The Bang and Olufsen 1001

A lovely B&O 1001 turntable from the early 70’s I was working on earlier, the beauty is in it’s simplicity, a motor, a very simple mechanism and a tonearm is all it needs to sound superb. And the brown envelope? It was inside the case and contained a wiring diagram, it had never been opened and it proves that companies like this expect their products to go on for decades, and at some point to be repaired.

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Tuesday 16/10/18

This tangle of wires was what I found in someones loft, all I had gone there to do was to get one socket working and add a new socket in a downstairs room, all the other sockets in the house were working fine.This was a converted bungalow with a bedroom in the loftspace and just a ...

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Friday 12/10/18

Workshop Day

I had quite a few repairs building up, most of them needing parts fitted, the first two this morning required some really delicate soldering, an AS-15 Gamma Correction chip on a Samsung t-con panel, around 1cm x 1cm with 48 pins, each one smaller than the tip of my soldering iron. This is an IC ...

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Thursday 11/10/18

First call today was a nice drive up to Wheddon Cross, some channels missing and others breaking up. The main problem was that the tv’s were all tuned to the Welsh, this can cause problems as the tide rises and falls, mainly because the signal is coming in on the side of the aerial. A bit of a retune to Mendip sorted most of the problems out, except for one tv…all the mendip frequencies had good strength and ...

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Tuesday 09/10/18

First job today was a problem with too much signal, yes it’s just as bad as not having enough! Obviously something common to the aerial because all three tv’s in the house were breaking up. Measuring the signal I could see plenty of strength but only around 50% quality, that usually tells me there’s something being ...

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Aiwa Direct Drive Turntable

I was brought this old turntable because it was cutting out on one channel, this was cured by replacing the phono leads, an easy enough job, but another fault was that it wasn’t lifting off at the end of the record. Being direct drive there are no mechanics under the platter to accomplish this so everything is done with electronics. To sense when the tonearm is at the end of the record there is a lamp and optical ...

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LG Backlight Horror

A recent arrival at my workshop, the backlights were working but the picture had a lot of shading on the right hand side and bottom of the screen. It seemed there were a few LED’s out…as it happened there were only five of the eighteen LED’s actually working. On inspection one LED had burned up completely and the other twelve had probably died of shock at the same time. They were all short circuit and it was a ...

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