TP–nKP
Principle of each function
1. Receiving and Call sound
Receiving a call
While pressing a button voltage drop from DC 10~12V to less than
5V at “L” Terminal ▶ 12V to Q6 “Collector” Terminal ▶ IGenerating
“Tremolo”sound through Q1,Q2,Q3
Generating 12V at Q4 “Collector” termina ▶ Power supplying to 386
IC No.6 pin
“Tremolo” sound generated from Q1,Q2,Q3 ▶ HOOK S/W
▶ IC1 3rd pin input ▶5th pin output ▶ V/R ▶ Speaker
AMP IC Power
Making a signal
Make a sound through a speaker
2. Making a call
Speak with handset
C-MIC ▶ HOOK S/W ▶ IC1 3rd pin ▶ IC1 5th pin
▶ HOOK S/W ▶ T1 Trans ▶ Output through “L1”
Deliver a voice message
3. Receiving a call
Pick up the phone
“L1” terminal ▶ T1 Trans ▶ HOOK S/W ▶ Speaker
Listening
WWW.COMMAX.COM
To Previous Page
Loading...
