🔴 Datron 4700 Calibrator Repair Part 4 - No.830

I finish the repair of my Datron 4700 calibrator.

The Datron 4700 is very similar to the Datron 4705, Datron 4708, as well as the Datron 4200A and Datron 4000.

I find a couple more problems which the cause of the high voltage output fault and fix them, and then test the resistance and current functions to confirm that they are working correctly.

This is Part 4, there are more videos about the repairs so check out the playlist and subscribe to make sure you don't miss them when they are released.

Part 1: https://youtu.be/Fvf3GMZI46s
Part 2: https://youtu.be/s2plnAavyKY
Part 3: https://youtu.be/XK1Sid5pXqY
Part 4: https://youtu.be/R7b1J9dplSw

0:00 - Look at what I found...
1:02 - Is there a Pin 12 or not ?
1:39 - Blown thermal fuse on the PA board.
6:26 - Testing Voltage function after Power Amplifier Board repair.
7:26 - Checking for hot spots with a thermal camera.
9:23 - Identifying the remaining faults.
12:14 - General points of interest.
13:30 - Final testing for Voltage function.
14:00 - I fixed the 1000V range.
16:24 - Testing the Resistance function.
18:31 - Testing the Current function.
19:43 - Patreon Supporters: https://defs.link/?u=fcb3a1

▶ Subscribe: https://defs.link/?u=ffa106
Click the Bell Icon to get notifications about my future videos!

*** Affiliate links: (Bookmark and buy using them) ***
▶ Banggood: https://defs.link/?u=5d46ae
▶ Amazon Store: https://www.amazon.com/shop/thedefpomsrepairchannel
▶ 👕👚🎽☕ Merchandise: https://teespring.com/stores/TheDefpom

Donate so I can make more videos for you:
▶ Become a Patreon!: https://defs.link/?u=fcb3a1
▶ Become a YouTube Member: https://www.youtube.com/channel/UCllpBTH26_dAl5tYl7vA1TQ/join
▶ PayPal Donations: https://defs.link/?u=b099ee

▶ My Odysee channel: https://odysee.com/@TheDefpom:fa
▶ My LBRY channel: https://lbry.tv/@TheDefpom:fa
▶ My Bitchute channel: https://www.bitchute.com/channel/TheDefpom/
▶ My Utreon channel: https://utreon.com/c/TheDefpom

▶ Test Equipment Repair Videos: https://www..