Home Theater Questions? Ask a Technician for Answers ASAP
Hi Geoffrey and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, if the RESET was not corrective, then it would appear to be an internal hardware issue.
Are you considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter and even a soldering iron?
Great on the DIY!
Bear with me as I am currently mobile and would have access to my files / Service Manual a bit later.
Still, please check the serial numbers of both units as these may be from the same production batch.
I would post back with test points soon as able.
Additionally, please post back with clear closeup pictures of the HDMI board. Click HERE.
Appreciate the post back and based on these, it would appear to be manufactured nearly on the same time.
Pictures of the HDMI board please?
For some reason, no pictures of the HDMI board were posted / forwarded.
The HDMI board would be topmost towards the rear's right side with the front facing you. This is often referred to as the D-MAIN ASSY.
I meant the actual PCB (circuit board). Something like the picture as may be viewed HERE but clearer larger.
Yes please; tomorrow or when able.
Carefully check for the presence and consistency of voltages at:
A friendly reminder; voltage measurements by its very nature requires that the unit be plugged in and turned on. It is therefore LIVE! Please exercise due care and caution.
I have to get the information / board layout from the Service Manual of the base model, not from the Service Manual of the 524.
Please click HERE.
The server allows very limited time before auto-delete inactive stored files.
Please try again, click HERE.
Use this as reference to identify and locate pin numbering, parts and others.
Please check the indicated voltages of the different pins of connectors CN201 and CN204.
Additionally, determine if any of these ICs would be heating up faster/greater than the others:
Would appreciate an update when able.
Sorry, but was hoping to get the voltage readings "...of the different pins of connectors CN201 and CN204..."
Please see p. 3 left side of the linked board layout.
It would appear that the pins measured are incomplete. Please note that CN204 have 11 pins while CN201 have 33 pins. The above readings were for only 6 pins of CN204 and only 17 pins of CN201.
And would appreciate an update when able.
The CN204 readings appears to be off the expected voltages. Please click HERE for the normal voltages of CN201 and CN204.
The system has "Timed Out" this question due to the long period of inactivity after my posting of "...The CN204 readings appears to be off...the normal voltages of CN201 and CN204...."
Still as above posted, the readings are off the expected values. Please trace where these voltages are missing. Example; pins 5 & 6 of connector CN204 are expected to have +3.3 and +5V respectively. From the above post / results, both reads 0V.
The last readings for:
where the expected values were:
Similarly check where these pins lead to and search for voltages and where they may be missing.