Manual Aloka Ssd 500
ALOKA SSD 500 Boot Problem November 14, 2013 05:04 I have quite the same problem with two different units. After switching power on, the keyboard is on but theres no beep.
Then the screen may stay black for a while, and some times it shows a white background with a grey box (no text at all), and on some occations it may show another shaded rectangle inside the grey box. Very rarely the unit keeps resetting, but with the same description as above. One of the units worked just once, and while was on, it rebooted and thats it. I removed the battery, cleaned up some of the mess it left around but the service manual is old and is not quite the same for these boards.
Created Date: 5/22/2009 3:26:03 PM. Ultrasound equipment for diagnostic: Ultrasonographs, scanner, the relating monitors and printer. Aloka SSD-500 Service manual Rev.2 18.3 MB Download Aloka.
Re: re: ALOKA SSD 500 Boot Problem November 18, 2013 11:04 thanks for the tip, but the output seems ok +5 -5 +12 -12. I started checking the signals in the uP bus, and the line which corresponds to the output pins of the ROMs are not ok. It should be a digital 'square' pulses, but some of them are triangular, just as if theres a huge capacitive load, or that the output driver of the ROMs is not capable of driving the line. I've changed the chips but the problem persist.
Aloka Ssd 500 User Manual
In the case I have to replace the ROMs, is it possible that anyone has the code to burn into them? I don't have the number now but tomorrow I'll post it. Thanks again. Re: re: ALOKA SSD 500 Boot Problem November 18, 2013 11:22 Juan, thanks for the reply. I've checked the PSU and voltages are ok +5 -5 +12 -12 Are all present in the boards connectors and are stable, even when resets. I continued looking, and I found that some of the output signals of the ROM chips con the CPU board are not ok. It seems as the output driver of the ROM can't handle the capacitive load on the bus.
I don't have a 4ch DSO to see the bus line and control signals all at once so as to be sure that the ROM is the problem. In any case, if I have to change this ROMs for new ones, does anyone have the code to burn on them? The number is (M0501 3.0-1) and (M0501 3.0-2). Re: ALOKA SSD 500 Boot Problem November 18, 2013 11:22 Juan, thanks for the reply. I've checked the PSU and voltages are ok +5 -5 +12 -12 Are all present in the boards connectors and are stable, even when resets. I continued looking, and I found that some of the output signals of the ROM chips con the CPU board are not ok. It seems as the output driver of the ROM can't handle the capacitive load on the bus.
I don't have a 4ch DSO to see the bus line and control signals all at once so as to be sure that the ROM is the problem. In any case, if I have to change this ROMs for new ones, does anyone have the code to burn on them?
State of war 2 arcon. The number is (M0501 3.0-1) and (M0501 3.0-2).
DESCRIPTION The Aloka SSD-500 portable ultrasound machine is a compact and lightweight multi-purpose diagnostic ultrasound system providing excellent image quality with comprehensive functions in a portable body. Uncomplicated controls, logically designed for straight forward operation, simplifies operator training, helps to reduce examination times, and increases overall operator efficiency. The mobility of the system enables it to be used on the desktop in an examination room, at the bedside of in-patients who have difficulty moving, in the operating theater, etc.