On 12/30/2015 10:26 PM, Rheilly Phoull wrote:
On 31/12/2015 2:19 PM, John Heath wrote:
On Wednesday, December 30, 2015 at 9:09:28 PM UTC-5, John Robertson
wrote:
On 12/30/2015 4:10 PM, John Heath wrote:
I remember working for a company that imported cheap radios. I took
my seat with the other 20 or so techs repairing radios. Most quotas
were in the 20 range while I was only repairing 3 or 5 radios a day.
Thinking I would be handed my pink slip I asked the tech next to
myself how he was repairing so many radios? He pointed to my draw
where I had saves some diagrams off the back of some of the radios.
There is your problem he said. You are over thinking wasting time.
You can measure 6 transistors faster than you can think if they are
RF , audio or IF. In short stop thinking and start measuring. When I
looked around I could see that the other tech were measuring not
thinking. I took his advise and my quota when up from 3 a day to 10.
A lesson I did not forget and still use today. I would like to know
if others have found this to be true.
Well, in my field (arcade game repairs - video, pinball, etc.) we (the
industry) used to trouble shoot monitors looking for the exact problem.
Then some lazy tech started simply replacing all the electrolytic
capacitors in the monitors - and the service rate went from a few
monitors a day to five or more. In 90% of the cases replacing the caps
and the HOT (and fuse) fixed most problems, changing the caps, HOT and
LOPT/Flyback fixed most of the rest. Leaving 5% as dogs that one could
spend a day on - if the customer thought it was worth the money.
Mr & Mrs. Gilbreth (Cheaper By The Dozen) who in their Time Management
process would often watch the laziest employee as he (she) would usually
have the best way of doing the job with a minimum of effort or fuss.
John :-#)#
--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."
A friend of mine has an old school arcade machine. No CPUs or monitors
in this puppy. Just a pile of relays and paddle wheels. Great stuff. I
could not find the tilt detector?
I found a short cut for flat electrolytic condensers in monitors and
switching power supplies. First check if condensers that are rounded
on top. Failing this use an impedance meter to measure the condenser
impedance in circuit without un soldering it. Not un soldering it
saves a lot of time. Any condenser with a impedance higher than a few
ohms at 10 KHz and you found your problem. The down side is they do
not sell condenser in circuit impedance meters so you have to make it
yourself. Not a big deal as it just requires 10 KHz at a low impedance
with about 100 m volts then monitor the current.
Google "blue meter" or "Bob Parkers ESR meter".
Indeed, I've been selling those meters since 1999 when I first starting
chatting with Bob Parker (Dick Smith K-7204 kits in those days). Great
ESR meter that works in circuit for roughly values between 4ufd to about
1000ufd.
John :-#)#
--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."