Block Diagram (Control Section) - Hitachi D-900BS Service Manual

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BLOCK DIAGRAM (CONTROL SECTIONI
069-
7r
rcil.l
lc9
s
lc8
FF
SOLENOI
D
s
(
FF}
F__J
o52
o54
055
rc5
rc5
I
06l
tc3.4
Q52
Q64
REW
SOLENOID
PLAY
SOLENOID
tc5
(STOP}
(AJTO
STOP
sr4
ú'
s2t
ú'
s22
st5
(
EJECT
'
(PAUSE)
st6
sl7
REC.
056
tc5 tc7
To FFlREW
solenoid
FF
REW
STOP
PULSE
SIGNAL
D65
tc2
Q73
'69
Q70
iAARK INDICATES
LOGICAL VALUE
coNvERsoN crRcurî
GENE
RAIES
FF
FLIP
_
FLOP
F
F GATE
GATE
FOR
FF
RESET
REW
PULSE
G
ENERAT ES
GATE
FOR
REW RESET
PLAY PULSE
GENERATES
GATE AMP
GATE
FOR
REW RESET
f@l-i[n;sn
PLAY.
REC.
SIGNAL
GENERAT
ES
REC. GATE
S
IGNAL
GENERATES
HIGE
/LOW
VOLTAGE
SELECTOR
,\
063
-39-