Pioneer DT-400 Digital Timer blurry display cleaning

This is common problem with vintage Pioneers, kinda blurry display. Its nothing easier, than take it apart and give it proper clean. (not mine picture)
Pioneer DT-400 Digital Timer

My mint DT400 after proper cleaning.
Pioneer DT-400 Digital Timer

Without lid
Pioneer DT-400 Digital Timer

European 230V version with Euro 2 pin mains sockets
Pioneer DT-400 Digital Timer

Pioneer DT-400 Digital Timer

Taken apart (kinda)
Pioneer DT-400 Digital Timer

Perspex cleaning fluid applied on display. Its possible to purchase it on eBay, I have used it many times on various surfaces and always working. Beauty!
Pioneer DT-400 Digital Timer

Pioneer DT-400 Digital Timer

The main blurriness is coursed by film created inside, needs to be wiped out!
Pioneer DT-400 Digital Timer

Same ritual is always applied:
– Windolene
– lighter fluid
– perspex cleaner on perspex
– light layer of WD-40 wiped with paper tissue in the end

Shiny like dog’s bollocks.
Pioneer DT-400 Digital Timer

Different (multivoltage) version of DT-440,
Pioneer DT-400 Digital Timer

Pioneer DT-400 on the top, DT-500 underneath and two DT-510’s at the bottom. The main difference between 500 and 510 is only design feature. Plastic display frame and plastic know on 510. Other models with Higher number (540, 550 etc) having green fluorescent display and black color.

Pioneer DT-400, DT-500, DT-510 Digital Timer
 
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2 thoughts on “Pioneer DT-400 Digital Timer blurry display cleaning

  1. I have been using a DT-510 for 12 years now but it’s gone nuts and the clock advances at one minuite per second. Looking for a replacement.

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