Home Articles Downloads Forum Products Services Seminar Contact
Thread Like Summary
Huw
Total Likes: 1
Original Post (Thread Starter)
by Mekaz
Mekaz
Hi all, I have a problem with some ATL HDI 5000 ultrasound machines that we bought. 5 of them were considered good and the 6th one faulty before arrival. While testing each of them on arrival, I noticed they were not booting up. When I removed all the boards as directed by the service manual, it boots up to the Philips screen. When I slot in the front boards, it boots, but when I include a back board, it doesn't boot, and vice versa. This happened with all the 5 machines. I also switched their Power Supply Module (PSM) boards. Still didn't work. Eventually, I then decided to try the PSM board from the 6th faulty machine, and surprisingly, all the boards worked as I placed them one after the other. This made me feel that all the other PSM are faulty. Unfortunately, as I placed in the last board, it booted to the Philips screen and immediately switched off and started showing the OVP TRIG light.

I switched off and on but since then, it has been showing the OVP-TRIG light.

I measured the voltages on the PSM boards for both the one considered not working and the one with the OVP TRIG. Below are the readings:

For the PSM considered not working

Without boards
P2 (in order)
-14.83
14.93
-11.87
11.99
-5.94
5.97
-5.26
5.05

P3 (in order)
0.02
-0.00
1 (no continuity)
0.01
4.98
2.49
5.12
2.48

With boards
P2 (in order)
-14.79
15.26
-11.85
12.21
-5.97
6.07
-5.26
3.29

P3 (in order)
-2.25
2.04
4.25
0.00
5.04
2.51
4.97
2.51

For the PSM with OVP TRIG

Without boards
P2 (in order)
0.02
0.01
0.00
0.01
0.01
0.02
0.00
0.00

P3 (in order)
0.00
0.00
4.14
0.00
0.01
0.00
5.02
2.51

With boards
P2 (in order)
0.16
0.10
0.02
0.00
0.01
0.00
0.00
0.00

P3 (in order)
0.00
0.00
4.16
0.00
0.01
0.03
5.06
2.49

Pls, I need help fixing this problem. Any help will be appreciated.

Kind regards,
Emeka
Liked Replies
by Malcolm
Malcolm
Hi Mekaz, I can send you two service manuals and a diagnostic supplement for the HDI 3000, as they are the same family they be may be of some use.

Send me a private mail and I'll "Wetransfer"

Stay Safe

Malcolm.
1 member likes this
Who's Online Now
0 members (), 108 guests, and 14 robots.
Key: Admin, Global Mod, Mod
Newest Members
Head of Quality, Haitham, Scouse Simon, Eladio, student7
9,784 Registered Users
Forum Statistics
Forums25
Topics10,693
Posts72,177
Members9,784
Most Online5,980
Jan 29th, 2020
Powered by UBB.threads™ PHP Forum Software 7.7.5