How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Louie Your Own Question
Louie
Louie, Technician
Category: Consumer Electronics
Satisfied Customers: 12577
Experience:  25+ yrs. experience in the field and 5+ yrs. online, down to component level.
13948492
Type Your Consumer Electronics Question Here...
Louie is online now
A new question is answered every 9 seconds

Dmr-es20 message

Customer Question

dmr-es20 hello message
Submitted: 1 year ago.
Category: Consumer Electronics
Expert:  Louie replied 1 year ago.
Hi and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, have you tried unplugging the Panasonic for an extended period of time ?
Customer: replied 1 year ago.
Yes
Customer: replied 1 year ago.
Is that all you have?
Expert:  Louie replied 1 year ago.
The unplugging is actual the first step and would serve as both an attempt of a fix and as a test by process of elimination.The objective was to simulate a soft RESET.Should this be non-corrective, then it would confirm an internal hardware issue. Still, there is a possible fix; though not quick-n-easy fix and neither is there a workaround. The unit would have to be opened up for visual/mechanical inspection, voltage measurements, confirm fault(s) and effect repairs. Are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter and even perhaps a soldering iron?
Customer: replied 1 year ago.
Yes I do
Expert:  Louie replied 1 year ago.
Great on the DIY!Should you be comfortable proceeding, post back with clear closeup pictures of the Main Board with power supply and the Digital Board. Please click HERE.
Customer: replied 1 year ago.
I don't see you didn't reply to expert button
Customer: replied 1 year ago.
I sent it using add files
Customer: replied 1 year ago.
Did you get it
Customer: replied 1 year ago.
What happened did you disappear?
Expert:  Louie replied 1 year ago.
Thank you for allowing me time to re-check the Service Manual and sorry but multiple instances / multiple replies only confuses the system and delays my viewing.Appreciate the picture.The displayed message is indicative that the startup process was unable to complete booting; i.e. the CPU was unable to detect a correct response from 1/any of the sub-processors.Can you please perform a visual inspection of the Digital Board and the Power Supply circuit for potential cold solder issues and even swelling/bloated capacitors?
Customer: replied 1 year ago.
I don't see any bloated or leaking capacitors and no cold solder joints
Expert:  Louie replied 1 year ago.
I beg to disagree; there appears to be at least 1 capacitor with its top bloated and/or punctured on the secondary side of the transformer.Additionally, the cold solder can only be checked at the trace/bottom side of the main circuit board which then requires that it has to be unscrewed, lifted to gain access to the underside.
Customer: replied 1 year ago.
The circuitboard I already had off before and I couldn't find any problems underneath. As for the leaky or gloated capacitors I do see the small two that are bloated. Do you really think that is enough to be an issue?
Expert:  Louie replied 1 year ago.
Yes, these are filter capacitors and if faulty would cause the DC Voltage not to reach expected level resulting to low B+ to the other circuit boards. We are looking at +12, +5V, +3.3V and in some others, +1.8V. Even a small drop in voltage then may and can result to the circuit it powers to fail.Can you try replacing these faulty capacitors? This would then serve as both an attempt of a fix and as a test by process of elimination.Even the Service Manual prescribes checking first the power supply circuit.
Customer: replied 1 year ago.
OK I will locate these capacitors and replace the two. How do I get back in touch with you if we still have a problem?
Customer: replied 1 year ago.
This'll take me at least a week to get parts and have time to get back on it
Expert:  Louie replied 1 year ago.
I understand; still, please click HERE.Do a Ctrl + D to bookmark this page and/or click on the link provided in the email sent by the site.
Customer: replied 1 year ago.
Do I reference a case number!
Expert:  Louie replied 1 year ago.
Sorry but my participation is strictly limited to technical, repair and/or installation issues.I am not privy to any "...case number..."
Customer: replied 1 year ago.
OK thanks
Expert:  Louie replied 1 year ago.
Cheers!
Customer: replied 1 year ago.
Still have the problem
Expert:  Louie replied 1 year ago.
If all the capacitor issues have been fully addressed, then please carefully check for the presence and consistency of the standby voltages at the cathodes of diodes:• D1250 +3.7V;• D1260 +5V; and• D1270 +12V.