SIEMENS D1032 (GOULD 1602) scope repair

[minekod]

Hi,

I've managed to buy a not working Siemens D1032 (GOULD 1602) scope. Scope was completly dead. After checking voltages on PSU, I've found that +5V rail reads 6 volts. After some soldering, the rail went normal 5V and scope went kinda on. The power LED is lit, and "ON" LED on channel 1 is constantly blinking at 1 second interval. No more signs of life. CRT went on 2 times, for a few seconds, but there was only a dot visible. I've desoldered a leaky battery, few tracks were affected, but they look fine. Reseating all IC's didnt change nothing. MCU signals and quartz's look fine on a scope. Any idea what can I do/check next? Does anybody know what blinking ch1 "on" LED means? Im out of ideas.

[Kleinstein]

A while ago I had a Gould 1604 for repair. It had some capacitors are the supply going bad In my case the worst offender was one behind a regulator that made the regulator oscillate.
The CRT part needs some of the regulatored supplies. So if the voltage regulator part is not working correct, the CRT may not woke at all.

The LED blinking at 1 Hz kind of shows that the CPU is likely still running.
AFAIR there was quite some relay action and light show on the front LEDs when turned on with a dead battery or no valid contend.

Overall the scope is pretty limited in BW (AFAIR some 7 MHz in DSO mode). So even if working as new it is a pretty limited scope and not really valuable.

[Razvan_N]

Do you happen to have or know where to find the operating manual (PDF) for it?
I found the service manual and schematic, but not the user's manual. Thank you!