Search found 4 matches

by batareika
Mon Nov 25, 2019 10:55 am
Forum: DSO Shell
Topic: Type of plug for backup power and hole values in the housing
Replies: 0
Views: 6744

Type of plug for backup power and hole values in the housing

Hello! On the oscilloscope board, you can (optionally) install a 9 volt power connector. Since I'm going to use this to power the transistor tester, I want to ask: - what type of plug is needed for this connector (see photo); - What is the best way to make a hole in the oscilloscope body for this? M...
by batareika
Mon Nov 11, 2019 2:52 pm
Forum: DSO Shell
Topic: What are the causes of this situation (image inside)?
Replies: 3
Views: 6089

Re: What are the causes of this situation (image inside)?

check R22, V4 is ADCIN which is held to 1.65V by R21 and R22. With the analog board disconnected ADCIN on the Digitalboard should be 1.65V, if it is your problem is with the analog board, if not its the digital board I used this schematic https://jyetech.com/wp-content/uploads/2018/07/dso150-shell-...
by batareika
Mon Nov 04, 2019 9:42 am
Forum: DSO Shell
Topic: What are the causes of this situation (image inside)?
Replies: 3
Views: 6089

Re: What are the causes of this situation (image inside)?

When I try to turn on the test signal appears (and disappears) the inscription "Doing VPos aligment..."
by batareika
Wed Oct 09, 2019 7:27 am
Forum: DSO Shell
Topic: What are the causes of this situation (image inside)?
Replies: 3
Views: 6089

What are the causes of this situation (image inside)?

Good health to all! When checking the voltage at the test points (see table), it turned out that the alternating voltage was 2 times higher than normal (resistors R13, R 14, R 15 are normal). What can cause this phenomenon, is it dangerous to start the oscilloscope? Thank. https://img16.lostpic.net/...