| ??? 12/27/08 22:47 Read: times |
#161178 - That C### is a capacitor number, I think Responding to: ???'s previous message |
Cuenta Chocula said:
One of the parts I was hoping to scavenge from the clock radio was a crystal to use as a clock on my 8051. Looking at the schematic of the 8650, I saw that pin 27 was the clock and off that line was a resistor and a thing that looked like a pancake capacitor but was green, shiny and square with rounded edges. I'd guess those are cap's. There are a lot of these throughout the boards in this clock radio and I'm not sure if they're crystals or caps. They are labeled C### just like the other capacitors are on the boards, but I'm hoping that they're crystals that I can use to drive the 8051. Here are some part numbers if anyone knows what they are (google gave too much info with too little of it useful): Here's what the first hit in a Google search on capacitor value designations yields 561J G2A possibly 560 pf 5% 2A 152 possibly 1500 pf 2A 473K possibly .047 uF 10% 2A 103JT (this is the one off pin 27 of the clock IC) probably 0.01 microfarad (uF) 5%, and, based on your description, possibly part of an RC oscillator used to time the logic that multiplexes the LED digit drive. 2A 333K I could be wrong, of course ... never having seen the board. RE |
