Philips VR6491 Service Manual page 25

2-8
>YLINDER SERVO BLOCK DIAGRAM
CTL INHIBIT
0210
eit
sw5v
'CONTROL, HEAD
CURRENT DETECT
'TC27 anak
CYL DRIVE
cHAv
PG
SHIFTER)
'C21 uPo6160cx606
'SERVO CONTROL
49)
To 10E-1
SERVO-SDA
SERVO-SCK
ctl ALS.
TF MOTOA RUNS SYNCRONIZER
TOO HIGH SPEEI
VOLTAGE GOES UP
REC.
'REF SIGNAL
FOR PHASE
CONTOROL
a
10 Iva!
vsiie
443M
5
c-ROTARY
9
TC25 wi5312veL
FINE SLOW
ENV SEL
<— 76 oH 1C26 4069
<—F6 150K
INVERTER
OUGITAL CIRCUIT
SH5V
CS 27 369