MIssion cambridge amplifier

[Cees Keyer]

Dear All

I've got a Mission Cambridge pre-amplifier.
I took it apart due and made digital pictures of the equipment, except
had an hard disk crash. Lost all the pictures, so i can't reassemble it.
And guessing it is a huge risk (it is not mine).

Any one out there with a complete circuit schematic or has pictures of
the inside (cable harness from power supply to amp board.)

tnx
in advance

 

[[email protected]]

Dear All

I've got a Mission Cambridge pre-amplifier.
I took it apart due and made digital pictures of the equipment, except
had an hard disk crash. Lost all the pictures, so i can't reassemble it.
And guessing it is a huge risk (it is not mine).

Any one out there with a complete circuit schematic or has pictures of
the inside (cable harness from power supply to amp board.)

tnx
in advance

And you deleted the pix from the memory card too? When the computer
is repaired get a USB drive to back that stuff up. Sorry I can't help
with the amp.

G²

 

[Arfa Daily]

Dear All

I've got a Mission Cambridge pre-amplifier.
I took it apart due and made digital pictures of the equipment, except
had an hard disk crash. Lost all the pictures, so i can't reassemble it.
And guessing it is a huge risk (it is not mine).

Any one out there with a complete circuit schematic or has pictures of
the inside (cable harness from power supply to amp board.)

tnx
in advance

And you deleted the pix from the memory card too? When the computer
is repaired get a USB drive to back that stuff up. Sorry I can't help
with the amp.

G²


Yes, I thought that it was odd that the pix had gone from the camera as
well. Memory cards are so cheap now that I never delete anything from my
camera. When the card gets full, I just replace it with a new empty one, and
archive the full one away as my 'negatives'. Sorry also. I don't have any
info on the Mission, but it can't be that hard to reassemble correctly, can
it ? Most decent equipment uses different sized or shaped connectors at each
point, to preclude the possibility of refitting them incorrectly. Also,
after years of laying and being ty-wrapped in one place, a harness will
normally re-lie round about where it should be, if offered back in, and it
will be obvious where each connector goes. As a matter of interest, why did
you find it necessary to dismantle to this level in the first place ?

Arfa

 

[Cees Keyer]

news:e22236bc-7ad9-400f-85a9- [email protected]...


And you deleted the pix from the memory card too? When the computer
is repaired get a USB drive to back that stuff up. Sorry I can't help
with the amp.

G²


Yes, I thought that it was odd that the pix had gone from the camera as
well. Memory cards are so cheap now that I never delete anything from my
camera. When the card gets full, I just replace it with a new empty one,
and archive the full one away as my 'negatives'. Sorry also. I don't
have any info on the Mission, but it can't be that hard to reassemble
correctly, can it ? Most decent equipment uses different sized or shaped
connectors at each point, to preclude the possibility of refitting them
incorrectly. Also, after years of laying and being ty-wrapped in one
place, a harness will normally re-lie round about where it should be, if
offered back in, and it will be obvious where each connector goes. As a
matter of interest, why did you find it necessary to dismantle to this
level in the first place ?

Arfa

Yes i deleted the pictures of the memory card as well.

I took it apart due to the awkward ticking noise it made.
Every 4 5ish second it made a tick sound, so the power supply was taken
out for checking the capacitors on ESR and leakage.
It is quite compact build so the inter pcb wiring was removed from the
pads. And i can't figure it out where what wire came from.
Schematics or service information is not available, even from the
distributor in the Netherlands.

Cees

 

[Arfa Daily]

Yes i deleted the pictures of the memory card as well.

I took it apart due to the awkward ticking noise it made.
Every 4 5ish second it made a tick sound, so the power supply was taken
out for checking the capacitors on ESR and leakage.
It is quite compact build so the inter pcb wiring was removed from the
pads. And i can't figure it out where what wire came from.
Schematics or service information is not available, even from the
distributor in the Netherlands.

Cees

Ah, I see, you had to unsolder the wires. That explains it. Well, if it's
just the power supply to main board harness in a preamp, there surely can't
be that many wires, can there ? What is there - a ground or two maybe and a
positive and negative rail pair for the opamps ? As you know where the wires
go to at the preamp end, assuming that they are still attached to the preamp
board, then it shouldn't be difficult to determine where they came from on
the power supply. I'm willing to bet that if the loom had been in there a
long time, it's going to have formed itself into some sort of shape that
it's probably still fundamentally got. That should at least give you a clue
as to the general area that each wire goes to.

Arfa

 

[Adrian C]

Dear All

I've got a Mission Cambridge pre-amplifier.

Model number?

 

[Cees Keyer]

Model number?

MOdel number is 778
tnx in advance

 

[[email protected]]

Yes i deleted the pictures of the memory card as well.

I took it apart due to the awkward ticking noise it made.
 Every 4 5ish second it made a tick sound, so the power supply was taken
out for checking the capacitors on ESR and leakage.
It is quite compact build so the inter pcb wiring was removed from the
pads. And i can't figure it out where what wire came from.
Schematics or service information is not available, even from the
distributor in the Netherlands.

Cees

If you haven't filled the card with new photos, this software can work
wonders - as it has for me.

http://www.datarescue.com/photorescue/

G²