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Emergency Dash Light - Repair
Hello All - I am attempting to repair an Emergency Dash Light for a friend of mine. It has blue LED lights it is similar to the one pictured in this link: http://www.1topstore.com/product_info.php?language=en¤cy=USD&products_id=11981
Initially the unit had all 4 LEDs burned out I fond a source for them and replaced same all worked fine. After reassembling the unit I discovered in final test that the controlling chip went bad. I think the chip is a EEPROM at least the package is a DIP-8. The device has a function select push button and there are 4 flashing formats; wig-wag, flash twice wig-wag, all steady on; all on flash.
Any suggestions?
Discussions
10 years ago
. Look for a part number printed on top of the DIP chip. Plug that number into Google. You may be able to buy a replacement.
Reply 10 years ago
Unfortunately the manufacturer of the device has buffed the number off. I did check on the bottom however the 2 numbers there do not cross to anything. Any suggestions?
Reply 10 years ago
. Unfortunately, no :(
Reply 10 years ago
The circuit board in the unit has the numbers HS-51055SRY on it I tried a Google on it and got nothing. Is it possible to use an EEPROM and use the outputs to signal 2 switching transistors directly? This is the first time I have ever seen this.
Reply 10 years ago
> EEPROM
. An EEPROM is a memory chip, not a logic chip.
. You should be able to do this with some simple logic chips, but others will have to tell you how (or if it's really possible).
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. I'd buy a new unit and salvage the LEDs and other parts from the old one. Repairing it will probably end up costing as much as a new one.