95
AVIC-505
-
Average speed/increased speed switch-over
RF EQ circuit
In previous CD mechanism module circuits, the basic
average speed/increased speed RF EQ circuit was used,
but in the CXK5052 by changing over to an RF EQ
circuit which has been optimized in regards to the
playback speeds of both average speed and increased
speed, we are aiming at increased performance in
regards to skew offset, etc.
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New externally-attached LPF circuit on the PLL
for increased speed
An LPF is needed to use the VCO contained within the
UPD63702AGF at double speed. To show the optimized
performance of the main IC UPD63702AGF, the circuit
configuration has been changed from the previous
externally-attached LPF circuits used with the
UPD63703GF (C203, R204, C205 etc.).
7.3 EXPLANATION
7.3.1 CIRCUIT DESCRIPTIONS
Q104
Q103 Increased
speed:GND
SCONT
H:Increased speed
L:Average speed
REFO
C127
C105
R105
R104
C125
5Pin
6Pin
UPC2572GS
IC101
Average speed
Increased speed
C105
C105
C127
R105
R104
R105
R104
C125
C125
<Average speed/increased speed switch-over RF EQ circuit>
R118
Average
speed:REFO
C203
R204
C205
R205
C204
CTLV 31Pin
R203
VCO 34Pin
vco 35Pin
POUT 32Pin
UPD63702AGF
Summary of Contents for AVIC-505
Page 4: ...4 AVIC 505 2 EXPLODED VIEWS AND PARTS LIST 2 1 PACKING ...
Page 6: ...6 AVIC 505 2 2 EXTERIOR ...
Page 7: ...7 AVIC 505 ...
Page 9: ...9 AVIC 505 ...
Page 10: ...10 AVIC 505 2 3 CD MECHANISM MODULE ...
Page 18: ...18 AVIC 505 1 2 3 4 1 2 3 4 D C B A A a A b A 3 3 MAIN CPU 1 3 A b ...
Page 33: ...8 33 AVIC 505 5 6 7 8 5 6 7 D C B A A D D b ...
Page 34: ...AVIC 505 1 2 3 4 1 2 3 4 D C B A D a D b D 34 D a ...
Page 35: ...35 AVIC 505 5 6 7 8 5 6 7 8 D C B A D a D b E CXB3043 CXB2199 CXA8702 E D a ...
Page 36: ...36 AVIC 505 1 2 3 4 1 2 3 4 D C B A D a D b D b ...
Page 37: ...37 AVIC 505 5 6 7 8 5 6 7 8 D C B A D a D b A D b ...
Page 41: ...41 AVIC 505 ...
Page 44: ...44 AVIC 505 1 2 3 4 1 2 3 4 D C B A MAIN UNIT A A ...
Page 45: ...45 AVIC 505 5 6 7 8 5 6 7 8 D C B A SIDE B A ...
Page 47: ...47 AVIC 505 1 2 3 4 1 2 3 4 D C B A SIDE B GRILLE PCB B B RESET ...
Page 48: ...48 AVIC 505 1 2 3 4 1 2 3 4 D C B A 4 3 PS PCB PS PCB SIDE A C C CORD ASSY A CN703 B CN152 ...
Page 49: ...49 AVIC 505 1 2 3 4 1 2 3 4 D C B A SIDE B PS PCB C C ...
Page 51: ...51 AVIC 505 1 2 3 4 1 2 3 4 D C B A SIDE B D CONTROL UNIT D E HOME CLAMP ...
Page 65: ...65 AVIC 505 Grating waveform Ech Xch 20mV div AC Fch Ych 20mV div AC 45 0 75 60 30 90 ...
Page 96: ...96 AVIC 505 7 3 2 BLOCK DIAGRAM ...
Page 97: ...97 AVIC 505 ...