731 Datron 1062 Autocal Digital Multimeter Repair Part 4

0:00 - I continue the repair of the Datron 1062. 1:20 - Checking new battery voltage. 1:40 - Battery installation warnings. 5:25 - Calibration switch key barrel. 6:02 - Making Calibration Keys. 9:10 - Refitting the calibration switch. 12:16 - EPROM Firmware Explanation and Testing. 14:11 - Converting a TMS2532 to a 2732 pinout to program it. 15:05 - Swapping GPIB EPROM. 16:45 - Testing GPIB EPROM. 17:08 - Swapping Digital Board EPROMs and Testing. 18:30 - Installing 1072 EPROM's. 19:25 - Testing 1072 EPROM's. 21:45 - Disappointment. 23:25 - Self test Error 6. 27:35 - Ohms board shot in the dark. 29:33 - Ohms board oddity. 29:58 - Ohms board calibration. 38:15 - Self test. 38:40 - Patreon Supporters Datron Playlist: /playlist/PL2z3V9RkHQE3JrgdtFlmEC6LDbg-5Ah00 See Part 1 here: /watch/8tMQWjLYRXnYQ See Part 2 here: /watch/8tMQWjLYRXnYQ See Part 3 here: /watch/wGGqc-MoyJToq See Part 4 here: /watch/0iPRJbSvIaqvR See Part 5 here: /watch/ga5OrubXMKJXO See Part 6 here: /watch/ESekAMX97HU9k ▶ My LBRY channel: https://lbry.tv/@ TheDefpom:fa ▶ Subscribe: https://defs.link/?u=ffa106 *** Affiliate links: (Bookmark and buy using them) *** ▶ Banggood: https://defs.link/?u=5d46ae ▶ Amazon Store: https://www.amazon.com/shop/thedefpomsrepairchannel ▶ My Merchandise: https://teespring.com/stores/TheDefpom ▶ Test Equipment Repair Videos: /playlist/PL2z3V9RkHQE21HOatpZqBT7XPDF-xVgYp ▶ Electronics & Repair Videos: /playlist/PL2z3V9RkHQE3HC6pRLVhotWsQbshtmLcw ▶ Review & Teardown Videos: /playlist/PL2z3V9RkHQE3BQ0oNHtWTPQ-0QslbrgEb ▶ Mailbag / Postbag Videos: /playlist/PL2z3V9RkHQE1ba-zQlmWqBLqhZPDR6wFj ▶ Electronics Projects Videos: /playlist/PL2z3V9RkHQE3scjKfNCTPedENrGu2zViF ▶ Apple Repair Videos: /playlist/PL2z3V9RkHQE1vu2Hh_8Mg5NhVSWzbPWFD ▶ CB & HAM Radio Videos: /playlist/PL2z3V9RkHQE3ki74hMMitH9aRlLa9ZgZx Donate so I can make more videos for you: ▶ Become a Patreon!: https://defs.link/?u=fcb3a1 ▶ PayPal Donations: https://defs.link/?u=b099ee ▶ My website: https://www.TheDefpom.com ▶ My Twitter: https://www.twitter.com/TheDefpom ▶ My Thingiverse for 3D printed replacement test equipment parts: https://defs.link/?u=0347b1 ==================== Some Of My Electronics Tools (video and purchase links) ==================== Boonton ------ 4220. 8210: https://defs.link/?u=e1eddc Fluke ------ 45: https://defs.link/?u=eac51d 343A: https://defs.link/?u=13c93d 540B: https://defs.link/?u=0c6bd9 5200A: https://defs.link/?u=a43c99 5450A: https://defs.link/?u=3c6292 HP/Agilent/Keysight ------ 4261A: https://defs.link/?u=07ed95 5342A 18GHz: https://defs.link/?u=5f7513 6181B: https://defs.link/?u=b12aef 8012B: https://defs.link/?u=ca5764 8648B: https://defs.link/?u=da52a3 8901B: https://defs.link/?u=535835 DSOX1102G: https://defs.link/?u=a68d39 https://defs.link/?u=12d498 E3646A: https://defs.link/?u=128f4a Marconi ------ 2955: https://defs.link/?u=6f6e5e TF2103: https://defs.link/?u=61baaa Rohde & Schwarz ------ SMY: https://defs.link/?u=93514b CMU200: https://defs.link/?u=8ccd72 Polarad SPN: https://defs.link/?u=2ead82 Siglent ------ SDM3065X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498 SDS2102 (hacked to 340MHz): https://defs.link/?u=1ed0fe https://defs.link/?u=12d498 SDP1168X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498 SDL1020X-E: https://defs.link/?u=a0eccb Other Equipment ------ KSGER T12 Soldering Iron: https://defs.link/?u=620ace http://defs.link/?u=5c112e Quick 861DW: https://defs.link/?u=138c0f https://defs.link/?u=a3fc81 S-993A: https://defs.link/?u=079677 https://defs.link/?u=e855a0 EEVBlog BM235: https://defs.link/?u=12d498 YR1030 Battery ESR: https://defs.link/?u=c56527 Heathkit IT-12 Signal Tracer. Racal Dana 1992: https://defs.link/?u=8eeeba Bird 43: https://defs.link/?u=4b18f7 Sinadder 3: https://defs.link/?u=2bf1dd Audio Control SA-3050A RTA: https://defs.link/?u=a04df2 Korad KA3305D: https://defs.link/?u=69090a PDVS2mini: https://defs.link/?u=869ba4 Valhalla 2703: https://defs.link/?u=06bcfc Feeltech FY6800: https://defs.link/?u=8b98cd http://defs.link/?u=34d101 Eakins Microscope: https://defs.link/?u=b0278b https://defs.link/?u=262327 Mustool G600: https://defs.link/?u=b8bc26 https://defs.link/?u=33f0aa Handheld Equipment ------ Uni-T UT210E: https://defs.link/?u=391ce3 https://defs.link/?u=ea4edc DER DE-5000: https://defs.link/?u=0d9160 https://defs.link/?u=12d498 MK-328: https://defs.link/?u=0d9160 https://defs.link/?u=739ee7 MESR-100: https://defs.link/?u=0d9160 https://defs.link/?u=009419 ESR Meter: https://defs.link/?u=0d9160 HOPI: https://defs.link/?u=7fab55 #TheDefpom #IFixStuff #Datron #Electronics #Repair #TestEquipment #Review #Defpom

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