Servo Signal Processor - Kenwood DP-7050 Service Manual

DP-7050
4. Servo Signal Processor : CXA1372Q (X32 : IC105)
Outline
CXA1372Q is a bipolar IC developed to be used for
processing of the RF signal (Focus OK, mirror, defect,
comparator of EFM) and servo control.
Functions
Auto asymmetry control
Focus OK detection circuit
Mirror detection circuit
Defect detection and countermeasure circuit
EFM comparator
Focus servo control
Tracking servo control
Sled servo control
4-2. Block diagram
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4-1. Pin connection
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@) MIRR
(@) OGND
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CBG G4) DATA
cP @ @} XLT
RF! @) @2) CLK
RFO @9 @) LOCK
OVEE ®) @9) DIRC
120 @
CXA1372Q
pes
TE @ (8) SSTOP
TDFCT @) (@) ISET
ATSC @) (6) FSET
FZC @) (3) SL-
FE @ (4) SLO
FDFCT @) (3) SL+
@O-O-O-® O-O-O-O-W
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