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DESCRIPTION OF FUNCTIONS
RF AMPLIFIER
vec
C802
R802
8.2P
2.2K
RF SUMMING AMP
IC KAS201 (CXA1081)
The RF amplifier output voltage (low-frequency) is Varo=2.2 x (Va+Va)=127.6K2 x (iPD1+iPD2).(at RFO)
2.
FOCUS ERROR AMPLIFIER
IC KA9201 (CXA1081)
C1 25P
- (B+D)
- (A+C)
VR802 10K
10K 2 at the external VR of pin @® (VR resistance is about 40K 2).
3. TRACKING ERROR AMPLIFIER
"oe
(:3)
Binge
IC KA9201
'
(CXA1081)
Vref
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