Hi Mark
Yeah it looks like TR2s defective, I've disconnected the 2 wires going into the modulator and its still getting hot. I'll have to get it replaced. Thanks for all the help. Its massively appreciated.
Search found 9 matches
- Sun Jul 26, 2020 7:59 am
- Forum: Hardware
- Topic: Spectrum+ No picture
- Replies: 19
- Views: 1918
- Sat Jul 25, 2020 9:02 am
- Forum: Hardware
- Topic: Spectrum+ No picture
- Replies: 19
- Views: 1918
Re: Spectrum+ No picture
Readings are as follows:-
R64:- L - 4.90, R 4.77
R51:- L 3.75, r 0.79
R48:- L 1.95, R 1.39
TR1 is cool but TR2 is hot.
R64:- L - 4.90, R 4.77
R51:- L 3.75, r 0.79
R48:- L 1.95, R 1.39
TR1 is cool but TR2 is hot.
- Fri Jul 24, 2020 5:15 pm
- Forum: Hardware
- Topic: Spectrum+ No picture
- Replies: 19
- Views: 1918
Re: Spectrum+ No picture
Ignore my last response Mark, I checked the wring pins on the IC14.
The correct readings are below.
IC14 :- 14 - 11.53, 15 - 11.53, 16 - 11.53
C44 :- 11.88
C45 :- 11.55
Modulator front Wire :- 3.52
Modulator Rear wire :- 0
The correct readings are below.
IC14 :- 14 - 11.53, 15 - 11.53, 16 - 11.53
C44 :- 11.88
C45 :- 11.55
Modulator front Wire :- 3.52
Modulator Rear wire :- 0
- Fri Jul 24, 2020 1:09 pm
- Forum: Hardware
- Topic: Spectrum+ No picture
- Replies: 19
- Views: 1918
Re: Spectrum+ No picture
Hi Mark
I've tested the connections and it looks like theres a few issues. the Voltage in each are as follows.
IC14 :- 14 - 11.55, 15 - 3.53, 16 - 11.51
C44 :- 11.88
C45 :- 11.55
Modulator front Wire :- 3.52
Modulator Rear wire :- 0
I've tested the connections and it looks like theres a few issues. the Voltage in each are as follows.
IC14 :- 14 - 11.55, 15 - 3.53, 16 - 11.51
C44 :- 11.88
C45 :- 11.55
Modulator front Wire :- 3.52
Modulator Rear wire :- 0
- Thu Jul 23, 2020 10:05 am
- Forum: Hardware
- Topic: Spectrum+ No picture
- Replies: 19
- Views: 1918
Re: Spectrum+ No picture
I've tried phono leads to no avail. I have checked inside the modulator and it looks ok to me but I wouldn't know if anythings up with it to be honest so I've attached a pic for you to check. My friends getting a multimeter, not sure how good its gong to be but its a BEVA digital multimeter apparent...
- Wed Jul 22, 2020 8:25 pm
- Forum: Hardware
- Topic: Spectrum+ No picture
- Replies: 19
- Views: 1918
Re: Spectrum+ No picture
Yes thats correct, made in the republic of Korea by Samsung is on the bottom. Yeah I know the ribbons are fragile so I am being careful. I'm in the UK and shopping online is no problem for me. I'm not sure if these pics are any good for you. Hopefully they are. https://i.postimg.cc/mzy77jC8/image0-1...
- Wed Jul 22, 2020 4:37 pm
- Forum: Hardware
- Topic: Spectrum+ No picture
- Replies: 19
- Views: 1918
Re: Spectrum+ No picture
Yes the Heat sink gets quite hot too, the keys make a clicking sound when pressed which comes out of the Spectrum's speaker. The board is issue 45 or 4S?
- Wed Jul 22, 2020 4:05 pm
- Forum: Hardware
- Topic: Spectrum+ No picture
- Replies: 19
- Views: 1918
Re: Spectrum+ No picture
Hello and welcome :D Is the heatsink getting hot? Is the ULA getting warm? Are any of the other chips getting warm or hot? Power it on and give it time before deciding. And by warm, I mean it’s warm to the touch, but not painful if you keep your finger on it. By hot, I mean you can’t keep your fing...
- Wed Jul 22, 2020 1:35 pm
- Forum: Hardware
- Topic: Spectrum+ No picture
- Replies: 19
- Views: 1918
Spectrum+ No picture
Hi guys I'm having a problem with a Spectrum+ 48k, I got from Ebay. When its all plugged in it powers on but I'm not getting any picture at all. The RF cable and powerpack all work fine because I've used them on another Spectrum (48k Rubber keyed) with no problems, so its not the leads or the tv. I'...