Pioneer XR-P270C Service Manual page 59

XR-P270C,XR-P170C
@ LC78622ED (IC8301 : CD ASSY)
@ SIGNAL PROCESSOR AND SERVO CONTROL IC FOR CD PLAYER
@ Block Diagram
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RAM ADDRESS
GENERATOR
INTERPOLATION
MUTE
BILINGUAL
C1,C2 ERROR
DETECTION & CORRECTION
FLAG PROCESS
@ Pin Assignment
DEFI
TAI
PDO
VVss
ISET
VVpb
FR
Vss
EFMO LC78622E
EFMIN
TEST2
CLV+
CLV-
viP
HFL
TES
@ Pin Function
Function
11 |DEFE =| 1 | Defect detection signal (DEF) input. (Must be connected to OV when unused).
(2 [TAI fs Test input. A pull-down resistor is built-in. Must be connected to OV.
13 |PDO =f —O | External VCO control phase comparator output.
14 |VVss | - | PLL Internal VCO ground. Must be connected to OV.
pins PDO output current adjustment resistor connection.
16 |VVDD =| - | Internal VCO power supply.
17 [FR | AT CO VCO frequency range adjustment.
1/8 {[Vss fe Digital system ground. Must be connected to OV.
2
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