o'scope power indicator question..

Scope is a Phillips PM3217

Scope seems to work fine, but when unit is powered off the power
indicator LED blinks slowly.. once every 5 seconds or so. I'm wondering
if this is an indicator of 'hooked to AC' or 'standby' mode or
something like that. I don't have a users manual for this piece of
equipment.

Any thoughts, suggestions are appreciated.

Thanks,

Jim

 

[Mike McGinn]

On Tue, 18 Jan 2005 03:41:26 -0800, smile4camera wrote:

Scope is a Phillips PM3217

Scope seems to work fine, but when unit is powered off the power indicator
LED blinks slowly.. once every 5 seconds or so. I'm wondering if this is
an indicator of 'hooked to AC' or 'standby' mode or something like that. I
don't have a users manual for this piece of equipment.

Any thoughts, suggestions are appreciated.

Thanks,

Jim
Does it have batteries??? That is used for indicating the charge rate of

the batteries


--
Mike McGinn
"more kidneys than eyes!"

 

Mike McGinn wrote:

On Tue, 18 Jan 2005 03:41:26 -0800, smile4camera wrote:

Scope is a Phillips PM3217

Scope seems to work fine, but when unit is powered off the power
indicator
LED blinks slowly.. once every 5 seconds or so. I'm wondering if
this is
an indicator of 'hooked to AC' or 'standby' mode or something like
that. I
don't have a users manual for this piece of equipment.

Any thoughts, suggestions are appreciated.

Thanks,

Jim
Does it have batteries??? That is used for indicating the charge rate
of
the batteries


--
Mike McGinn
"more kidneys than eyes!"

The unit _does_ accept a DC power input.. so it wouldn't be surprising
that it might have batteries inside. Other than two large 'coin slot'
fasteners on the rear panel I don't see any way to open this sucker up.

Appreciate the response, any other suggestions are certainly welcome..
Thanks,

Jim

 

[Mike McGinn]

On Wed, 19 Jan 2005 03:41:54 -0800, smile4camera wrote:

Mike McGinn wrote:
On Tue, 18 Jan 2005 03:41:26 -0800, smile4camera wrote:

Scope is a Phillips PM3217

Scope seems to work fine, but when unit is powered off the power
indicator
LED blinks slowly.. once every 5 seconds or so. I'm wondering if
this is
an indicator of 'hooked to AC' or 'standby' mode or something like
that. I
don't have a users manual for this piece of equipment.

Any thoughts, suggestions are appreciated.

Thanks,

Jim
Does it have batteries??? That is used for indicating the charge rate
of
the batteries


--
Mike McGinn
"more kidneys than eyes!"


The unit _does_ accept a DC power input.. so it wouldn't be surprising
that it might have batteries inside. Other than two large 'coin slot'
fasteners on the rear panel I don't see any way to open this sucker up.

Appreciate the response, any other suggestions are certainly welcome..
Thanks,

Jim
I was the Philips North American lead service guy for scopes in the early

80's. The only time that blinked in the way you describe is if the battery
option was installed. It eeould be quite heavy with the batteries, so I
bet the batteries themselves have been removed,but the circuitry is still
there. Those two big screws on the back are the only way in. The back
cover has a transformer and voltage selector on it, after removing the
backcover you can slide off trhe case. Get yourself a manual. These units
are based on the PM 3214 and are very reliable.

--
Mike McGinn
"more kidneys than eyes!"

 

I was the Philips North American lead service guy for scopes in the
early
80's. The only time that blinked in the way you describe is if the
battery
option was installed. It eeould be quite heavy with the batteries, so
I
bet the batteries themselves have been removed,but the circuitry is
still
there. Those two big screws on the back are the only way in. The back
cover has a transformer and voltage selector on it, after removing
the
backcover you can slide off trhe case. Get yourself a manual. These
units
are based on the PM 3214 and are very reliable.

--
Mike McGinn
"more kidneys than eyes!"

The unit is a fair bit heavier than a similiar sized Tektronix 2215..
so I suspect the batteries might still be inside..

Are the two big screws threaded, or quarter turn release?.. I can
rotate them about 30 degrees then they stop.. I don't want to goon them
unless I have to. I have this scope and two Tektronixs.. some are being
sold, and I'd rather not goober this unit up trying to get it apart.
But the battery option would be nice. Do you know what type/size
batteries it uses?

Thanks,

Jim

 

[Mike McGinn]

On Thu, 20 Jan 2005 04:01:24 -0800, smile4camera wrote:

The unit is a fair bit heavier than a similiar sized Tektronix 2215.. so I
suspect the batteries might still be inside..

Are the two big screws threaded, or quarter turn release?.. I can rotate
them about 30 degrees then they stop.. I don't want to goon them unless I
have to. I have this scope and two Tektronixs.. some are being sold, and
I'd rather not goober this unit up trying to get it apart. But the battery
option would be nice. Do you know what type/size batteries it uses?

Thanks,

Jim
As I recall we used Sonneschien 8 Volt gel cells in that unit. Three of

them. They are threaded screws (or were when I worked there) on the backs
of these units. If they are quarter turn release they should release the
back.
Generally,the batteries lasted about a year as I recall, but they can be
brought back sometimes with a good DC power supply and a little patience.

--
Mike McGinn
"more kidneys than eyes!"