Has anyone got a datatsheet or cross reference information on the transistor that controls the fan speed on S1 505's? It's a Motorola TE1829 and is situated on the inner guard adjacent to the blower fan. It is bolted to a fairly large aluminium heat sink. It's a bitch to get to as you have to break away the noise deadening and use a stumpy screwdriver to get it out. I could find very little about it on the internet, nothing on the Motorola site and they have yet to reply to my email.
My fan only runs on high speed and doesn't do anything on the other three settings. I've replaced the circuit card that is operated by the fan speed slider knob and this did nothing. The little info I have found indicates it is a Darlington power transistor. Whether it is PNP or NPN I don't know. Hopefully someone has an old transistor cross reference book from the early eighties that has an equivalent in it. Has any one replaced this transistor with another commonly available type?
Cheers,
Matt.
My fan only runs on high speed and doesn't do anything on the other three settings. I've replaced the circuit card that is operated by the fan speed slider knob and this did nothing. The little info I have found indicates it is a Darlington power transistor. Whether it is PNP or NPN I don't know. Hopefully someone has an old transistor cross reference book from the early eighties that has an equivalent in it. Has any one replaced this transistor with another commonly available type?
Cheers,
Matt.