Pro-2006: channel scan mod

FCVPI99

Member
Joined
Nov 4, 2005
Messages
591
Location
Rockford,IL
"
Scan rate increase
Parts : 16Mhz. Quartz Crystal - fundamental cut

Replace CX503 (12Mhz) with a 16Mhz crystal, clip diode D503 (near D502)
The unit now scans at around 40 channels per second."

changing the 12 Mhz to 16 Mhz makes the CPU run faster .. a faster running CPU makes more heat .. does it make enough heat to burn out the CPU like in computers when you overclock?
 

rgchristy

Member
Premium Subscriber
Joined
Mar 10, 2005
Messages
997
Location
Delco, PA
More mods:
 

Attachments

  • More Pro 2005 Mods.txt
    2.1 KB · Views: 32
  • Radio Shack Pro 2005 Mods.txt
    21.9 KB · Views: 21

LesWurk

Member
Joined
Dec 17, 2009
Messages
245
Location
Land of RF
"
Scan rate increase
Parts : 16Mhz. Quartz Crystal - fundamental cut

Replace CX503 (12Mhz) with a 16Mhz crystal, clip diode D503 (near D502)
The unit now scans at around 40 channels per second."

changing the 12 Mhz to 16 Mhz makes the CPU run faster .. a faster running CPU makes more heat .. does it make enough heat to burn out the CPU like in computers when you overclock?
may also reduce the delay time when setting channel delay
 
  • Like
Reactions: wtp

JDKelley

Just call me "Sparks." Or "Lucky."
Joined
Aug 31, 2019
Messages
92
Location
Milpitas, CA
"
Scan rate increase
Parts : 16Mhz. Quartz Crystal - fundamental cut

Replace CX503 (12Mhz) with a 16Mhz crystal, clip diode D503 (near D502)
The unit now scans at around 40 channels per second."

changing the 12 Mhz to 16 Mhz makes the CPU run faster .. a faster running CPU makes more heat .. does it make enough heat to burn out the CPU like in computers when you overclock?
I would assume that it would make heat at least increase to a critical level at times, and stick a heat sink (at least) and possibly a fan (piggybacked onto the 12VDC rail or tapped into the DC past the rectifier, with its own regulator) and maybe slot the case overtop the heat sink you just installed to help it vent (this is where my little mill comes in very handy - chuck in a 1/16" end mill and mill out a set of slots. Then, stick a bit of open cell foam sheet in there as a dust filter, to help keep crud from falling in through your new clots. You should only need enough slotting to cover your cpu/heatsink/fan assembly.
 
Top