Really P'd off
Re: Really P'd off
And now my hands are sticky. Oh, I see. This is the "back-up" SGC, and it looks like it was previously owned by a heavy smoker.
Well, into the acetone bath for you then!
Well, into the acetone bath for you then!
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Re: Really P'd off
Dave last seen floating past the moonDave wrote:
Well, into the acetone bath for you then!
Re: Really P'd off
Nope. That was the time the missus didn't spot a pen in the laundry and tumble dried it. Ruined a load of clothes, and the dryer - OR SO SHE THOUGHT! I figured, "oh, this acetone will get that right off!"
There are two parts to this tragedy:
The acetone fumes. Obvious result when I had my head in the tumble dryer.
The dryer was a gas dryer. It had just stopped. The pilot light was still lit.
The fumes didn't stand a chance, and I was apparently not too bothered about the burns I got.
There are two parts to this tragedy:
The acetone fumes. Obvious result when I had my head in the tumble dryer.
The dryer was a gas dryer. It had just stopped. The pilot light was still lit.
The fumes didn't stand a chance, and I was apparently not too bothered about the burns I got.
Re: Really P'd off
Dave,
Naming the three pins from left to right, as shown in your photo, A, B and C
Results -
Resistance (Ohms)
+ve to -ve
A to B 35M
B to C 1.3K
A to C 34M
-ve to +ve
A to B 243K
B to C 3.2K
A to C 252K
Diode test (Volts)
+ve to -ve
A to B 0.0
B to C 0.23
A to C 0.0
-ve to +ve
A to B 0.56
B to C 0.62
A to C 0.59
Readings taken from a new 7805 (acknowledging that the PCB has other components that will affect the previous readings)
Resistance (Ohms)
+ve to -ve
A to B 4.6K
B to C 1.2M
A to C 9.3M
-ve to +ve
A to B 4.6K
B to C Open
A to C Open
Diode test (Volts)
+ve to -ve
A to B 1.2
B to C 0.54
A to C 0.56
-ve to +ve
A to B 0.6
B to C 0.0
A to C 0.0
Whopper.
Naming the three pins from left to right, as shown in your photo, A, B and C
Results -
Resistance (Ohms)
+ve to -ve
A to B 35M
B to C 1.3K
A to C 34M
-ve to +ve
A to B 243K
B to C 3.2K
A to C 252K
Diode test (Volts)
+ve to -ve
A to B 0.0
B to C 0.23
A to C 0.0
-ve to +ve
A to B 0.56
B to C 0.62
A to C 0.59
Readings taken from a new 7805 (acknowledging that the PCB has other components that will affect the previous readings)
Resistance (Ohms)
+ve to -ve
A to B 4.6K
B to C 1.2M
A to C 9.3M
-ve to +ve
A to B 4.6K
B to C Open
A to C Open
Diode test (Volts)
+ve to -ve
A to B 1.2
B to C 0.54
A to C 0.56
-ve to +ve
A to B 0.6
B to C 0.0
A to C 0.0
Whopper.
You woke me for THAT!!!
Re: Really P'd off
Opps. Didn't see this until I'd done the previous tableDave wrote:If there is a wire link, even with an external 5V supply, it still could be shorting 9V QL power to the 5V line.
can you check across the outside two pins
You woke me for THAT!!!
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Re: Really P'd off
When you say it doesn't work - in what way does this exhibit itself.
THe SGC is fairly reliable - in order what I would check:
a) Has the 5V regulator been bypassed (or removed) ?
b) Are any of hte pins bent inside your QL expansion connector ? That is frequently the problem when an interface does not work
c) Remove the memory chips on the SGC and put them back - I had one where I removed the memory chips and was struggling to put them back in - only then did I realise the problem all along - one of the legs from the RAM chips was still in the hole !!
d) It could be a blown INGOT chip, in which case you are in trouble.... Just in case send it to someone else with a QL to try...
THe SGC is fairly reliable - in order what I would check:
a) Has the 5V regulator been bypassed (or removed) ?
b) Are any of hte pins bent inside your QL expansion connector ? That is frequently the problem when an interface does not work
c) Remove the memory chips on the SGC and put them back - I had one where I removed the memory chips and was struggling to put them back in - only then did I realise the problem all along - one of the legs from the RAM chips was still in the hole !!
d) It could be a blown INGOT chip, in which case you are in trouble.... Just in case send it to someone else with a QL to try...
Rich Mellor
RWAP Software
RWAP Adventures
SellMyRetro
Retro-Printer Module - add a USB printer to your QL
Also Involved in:
Icephorm
RWAP Software
RWAP Adventures
SellMyRetro
Retro-Printer Module - add a USB printer to your QL
Also Involved in:
Icephorm
- vanpeebles
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Re: Really P'd off
Also watch out if you use surge protected sockets, my SGC card would need a reset on the QL to work.
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Re: Really P'd off
Mains sockets?vanpeebles wrote:Also watch out if you use surge protected sockets, my SGC card would need a reset on the QL to work.
Expansion sockets?
IC sockets?
Glove box puppets?
Mark
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“There are four lights!”
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer in Somerset later in the year
QL, Falcon, Atari 520STFM, Atari 1040STE, more PC's than I care to count and an assortment of 8 bit micros (Sinclair and Acorn)(nearly forgot the Psion's)
“There are four lights!”
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer in Somerset later in the year
QL, Falcon, Atari 520STFM, Atari 1040STE, more PC's than I care to count and an assortment of 8 bit micros (Sinclair and Acorn)(nearly forgot the Psion's)
- vanpeebles
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