JVC DD-9 A - Block Diagram (1); Mecha. control circuit

Block Diagram (1)
= Mecha. control circuit
ndi r
Indicators 5V
REC PAUSE PLAY REW FF
Remote
control
socket
(¥)
(¥)
’)
Cassette V
Operation 5 Control IC
buttons
1C801
REW
OFF
PAUSE
M54866P
O O O
exams
Gees
Play
solenoid
board
a
(ee
|
river
RECO
X804
2SD571
X805,806
2SC945L
X807 2SB605
O
REC MUTE
Brake solenoid
X809
2SC945L
Play solenoid
cS
0
DD-9A/B/C/E/J/U
driver Brake solenoid
X801,802 | eae
2SC945L Q
Reel motor drive circuit] X803 2SD571 50/60 Hz
X8!13,814
selector
2SD571 Power supply ie i
‘ X812,815,816 for Reel motor PLAYS) XKOI,KO2
o 1 Rec. proof 817,818 circult PAUSE 2SC945L
as secede Counter IC Counter FL
5
3-8 _ _ Cassette (M) 6
Q 9 1 switch Pp | ls _|
ower supply Reel motor
1
\
for
Motor
2,
Les Capstan motor a
ie M8523H el ae
To Stop circuit 6
er KII
Mee eew Stop circuit a
si STOP/PLAY PAUSE DELAY control (BES)
Memory
stop
ASeS
BES
68]
xGi7
ne
STOP
vaGd
2SC945L
25C945L
Memory
stop
/\
(QA,PA) XKOG muting
2SC945L pso2
(QA,PA)]|
US1035
2SC945L
XKO5
|
(PA,KA)
2SD636
M
-
Auto
stop
One
shot
Micro-computer
R
Ss
agne Hall IC circuit multi circuit Micro-computer IC output selector Ol detector Signal wave
> control
XKO3
25A733A(P,K)
Fig. 25
Sy 7—
No. 4198