Sony TC-EX66, Service Manual

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IC Block Diagrams
1 2 3 4 5 6 7 8
9 10 16 15 14 13 12 11
GP GL GH
I
REF VCC
IN
(R)
GND
(R)
OUT
(R)
IN
(L)
GND
(L)
OUT
(L)
f/Q fQ fM REF
GND
VEE
CONTROL
EQ
EQ
1
2 3
4
5 6 7 8 9 10
GND
MOTOR
DRIVE
NOISE
FILTER
CLAMP
FWD.IN
REV.IN
VCC 1 VCC 2
NOISE
FILTER
MOTOR
DRIVE
MOTOR
DRIVE
MOTOR
DRIVE
T.S.D O.C.P
FWD/REV/STOP
CONTROL LOGIC
IC304 CXA1198AP
IC804 LB1641
ON/OFF
CURRENT
LIMITER
START
CIRCUIT
VREF
OVER HEAT
PROTECT
ON/OFF
CURRENT
LIMITER
1
2 3
4
5 6 7 8 9 10
VCC
VMUTE VCC
VREF
ERROR
AMP
VREF
ERROR
AMP
VO1 VCC CN1
EN
EN DISPLAY
GND
NC
CN2 VEE VO2
~ _1.8V
~_
140uA
COMPARATER
IC805 LA5617
SECTION 5
DIAGRAMS