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by eldenh
Thu Nov 26, 2020 9:37 pm
Forum: General Technical Discussions
Topic: Changing speedo display
Replies: 5
Views: 212

Re: Changing speedo display

The owners manual says it can be changed by the button under the multifunction display.
by eldenh
Tue Nov 24, 2020 8:41 am
Forum: Batteries and Battery Management
Topic: Gen1 DCDC Converter Troubleshooting and Repair
Replies: 121
Views: 7961

Re: Gen1 DCDC Converter Troubleshooting and Repair

Thanks for finding a source. But Arrow wants $50 for shipping! I have no experience with smd devices or multilayer pc boards. Rather than learn on this one, I prefer to buy one if possible or find someone to repair the one I have. I doubt I can effectively determine what was the original fault until...
by eldenh
Sun Nov 22, 2020 5:54 pm
Forum: Batteries and Battery Management
Topic: 12v Battery - All You Ever Wanted To Know
Replies: 23
Views: 14091

Re: 12v Battery - All You Ever Wanted To Know

The system uses a 120 amp fuse link on the right side of the positive connector to recharge the battery.
by eldenh
Sun Nov 22, 2020 1:12 pm
Forum: Private For Sale, Want To Buy
Topic: Wanted: Gen 1 dc-dc converter board
Replies: 0
Views: 321

Wanted: Gen 1 dc-dc converter board

Looking for a good dc-dc converter control board for a 2012 iMiev, nichicon #PA4091RP60.
by eldenh
Thu Nov 19, 2020 11:29 pm
Forum: Batteries and Battery Management
Topic: Gen1 DCDC Converter Troubleshooting and Repair
Replies: 121
Views: 7961

Re: Gen1 DCDC Converter Troubleshooting and Repair

When I looked for the part number in the list, the best I found was that it is an obsolete part. Where can I find a suitable replacement?
by eldenh
Thu Nov 19, 2020 9:10 pm
Forum: Batteries and Battery Management
Topic: Gen1 DCDC Converter Troubleshooting and Repair
Replies: 121
Views: 7961

Re: Gen1 DCDC Converter Troubleshooting and Repair

My results are discouraging. I found 15v on the 5v buss. Q229 still checks as a good transistor, so I assume IC209 is damaged. Without being able to power up the LV section, I don't see a way to continue.
by eldenh
Thu Nov 19, 2020 9:40 am
Forum: Batteries and Battery Management
Topic: Gen1 DCDC Converter Troubleshooting and Repair
Replies: 121
Views: 7961

Re: Gen1 DCDC Converter Troubleshooting and Repair

The power supply finally arrived. As I considered how to hook it up I discovered that none of the GND pads on the top of the board are connected to each other or pin 1 or CN201. So it seems I must remount the board in the chassis or create a system to connect the pads. Is it possible that such isola...
by eldenh
Thu Nov 12, 2020 1:32 pm
Forum: Batteries and Battery Management
Topic: Gen1 DCDC Converter Troubleshooting and Repair
Replies: 121
Views: 7961

Re: Gen1 DCDC Converter Troubleshooting and Repair

I read 6.28k and 4.55k across C242 and C249 respectively. I assume those have to do with other current paths in the circuit. I've ordered a power supply with adjustable current limiting to try to test the 5v via TP201.
by eldenh
Thu Nov 12, 2020 9:05 am
Forum: Batteries and Battery Management
Topic: Gen1 DCDC Converter Troubleshooting and Repair
Replies: 121
Views: 7961

Re: Gen1 DCDC Converter Troubleshooting and Repair

That seems to be unlikely to me. As I recall, the negative probe was in one of the screw holes of the chassis where it was for other checks and there was no reading until I twisted the positive probe in the vias to make contact on each leg.

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