Sony WALKMAN WMD-DT1 - Circuit Diagrams and Layouts; System Block Diagram

pane
[Pintame
[WO
[SOS
SSCSCS~*Y
0 |
Brorconcioimedenietiadgml
————SSSSCSCSSSSSCSCSCSC*S
[0
|
Heohone
apie
ONOFF
enoignl
(HOM)
|
o
|
‘Headphone amplifier mute
signal
(“H”:
Mute)
:
[se
Pppmure
|
0
|
Digit
muesiena
HMw)
[9s
|
pacsmure——s|s«CO
|
D/A converter mute
signal
(“H”=Mute)
[96
=f
ForV.
sisi
CY
Tape running
direction
selection
signal
to
DSP (CXD2606).
(“L”: FWD)
| 0
|
8
pO:
==
|
o
|
100 |
|
o
|
AMPMUTE
Standby signal to the motor driver IC
Reel motor running direction selection signal (“L”: FWD)
RELFRC
NOR/ X 2
LEDCONT
Capstan speed normal / X2 speed selection (“L”: Normal)
POWER LED output (“L”: LED lights up)
6-1.
BLOCK DIAGRAM
‘SECTION 6
DIAGRAMS
M902 1c401
PLAYBACK EQUALIZER AMP
DRUM MOTOR ASSY
RFOT OUT (1!)
o— A= IX S63) HAA IN
tc6or
Vv BATT DRUM, REEL MOTOR
PWM DRIVE
1c602
ORUM_ MOTOR DRIVE
1C603
REEL MOTOR DRIVE
mg0t
REEL MOTOR
[oe oe a ls op
|
| O
| 0 0
ge
Is Sle
| | 1 ©
| a |
| i ULIN+
| iS T arr
“74 !
aod (ee ces
| ae VIN-
eg
| ra] Lg WIN
cae -
| | Adie Feo
Le Oo
itor ete Noa A MRVCC
ot
PH2
TAKE -uP K
exo) BN]
SENSOR
PHI
SUPPLY ie
N B=]
END
SENSOR