Panasonic KX-B620 - Page 58

KX-B620 Series
KX-B520 Series
DC level is TYP 4V, so if amplified directly, it becomes very distorted. Therefore the input for the broad-
band amp is a condenser coupling circuit.
The output signal that is cut by condenser coupling circuit is amplified by 1C202 (NJM318D), Gain is
adjustable by VR201.
CCD
Video out ©
(Vout)
Wi.
R207 C207
Fig. 38 Circuit Diagram
® Waveform is shown below.
® Waveform is shown below
Output Voltage
Less than
0.7V
GND
® Waveform (VIANA) is shown below.
® The amp output (NJM318D) VIANA
About 7V
GND