It is Q201 on the front micom board.
Read about it here or search google for the word Q201 and BC200xlt
http://www.repairfaq.org/REPAIR/F_BC_Repair.html
Any surface mount pnp transistor will work. Q202 may have a B6 on the top of it.
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All these cat scanners work pretty mich the same
There are several ways. First, turn the scanner on and adjust the squelch so that it is quite. Then press the manual button to flip through the 16 channels. Stop on the channel you want to program. Then, type in the frequency followed by the "E" key on the lower right of the keypad. Hit the manual button to move to the next channel and repeat the process above.
You can also "scan" for a frequency. Here is how: Use the manual button to get to one of the channels. Now type in "120.0 followed by pressing the "limit" button. Now type in "125.0" and press the "limit" button again. Now press the "scan" button. The scanner will now search all frequencies between 120.0 and 125.0 on that channel and will pause and listen should a transmission happen. You can do this "limit" scan for any frequency range that the scanner is capable of receiving. Once you hear a transmission, you can press the "hold" button to stay on that received frequency. Pressing the "E" button will lock that frequency into that channel.
The squelch control gets rid of the hissing on a blank channel. Finda blank channel, turn up the squelch control until the hissing stops. The scanner should then scan the channels and stop on a busy one.
Plug the AC adapter into the
back of the scanner and into a wall electrical outlet. Screw the antenna
into the receptacle on the back of the scanner (extend the antenna to
full length for best reception).
2
Set the squelch level to allow
signals to be heard by turning the squelch knob counterclockwise. Rotate
the volume knob clockwise until you hear static. Slowly turn the
squelch knob clockwise until the static noise disappears.
3
Start programming frequencies into the scanner by pressing the "Manual" button.
4
Press the up arrow or down arrow key until the channel you wish to program is visible on the display.
5
Use the numbers on the keypad to enter the frequency for the local transmitter you wish to receive.
6
Press the "E" key to complete the process of entering the frequency.
7
Repeat steps 3 through 6 for each additional frequency you wish to monitor.
8
Press the "Scan" key to start
the scanning process. The scanner stops on a channel when it detects a
signal strong enough to hear over the squelch setting. Two seconds after
the signal stops, the scanning process resumes.
You can download/print the complete manual for your scanner by following the link below. It's a free download, and it provides detailed programming instructions. If you're programming a channel that is "empty" (showing 000.0000) just enter your frequency. Empty channels automatically show LOCKOUT but it clears with programming. The squelch setting will vary according to the strength of the signals you receive. Once you start scanning, turn the squelch down until scanning stops and you hear a hissing sound, then turn the control up slowly until scanning resumes.
For a comprehensive database of active frequencies in your area, visit:
I couldn't locate a manual for your oldie, but it's fairly simple to operate.
Turn the scanner ON.
Press "Manual" to stop scanning. Use the keyboard to choose the channel you want to enter
your first frequency into. If you want channel 2, press the number 2 on
the keyboard and then "Manual" again. If you want channel 12, press the
1 and then the 2 and then "Manual" again.
Enter
the desired frequency, including the decimal point. For instance, if the
frequency is 555.789, enter 5, 5, 5 and then the dot button, then 7, 8
and 9. Then press "Enter" to complete the setup.
Use
the "Manual" button to move to the next channel to enter the next
frequency. Continue this process until you have all frequencies entered.
Complete
your entries and then press "Scan." Set the squelch by turning the
"Squelch" knob all the way up and backing off until you hear no
static.
Lock
out a channel that is annoying you by pressing the "Lockout" button. If
you want to listen to the channel again, simply select "Manual," find
the channel by entering it on the keypad and then hit "Lockout" again
For a comprehensive database of active frequencies in your area, visit
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