Sony WALKMAN WMD-DT1 - IC503 System Control Pinout

IC503 SYSTEM CONTROL (CXP80620-457R)
A
i PWM IC pass circuit ON/OFF control signal (PLAY : “H”, FF/REW : “L”) (Not used)
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| 3. | PWM-EN ———s|_O_ | PWM IC pass circuit ON/OFF control signal (PLAY : “H”, FF/REW : “L”) (Not used)
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Ne
Not used
Loading switch input (“L”: ON)
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Pin for determining whether momentary tape-up is performed or not immediately after loading.
Not tape-up when “H”, tape-up when “L”. (Fixed at “L” in this unit.)
Chip select output to the LCD driver (“L.”: Select)
Wake-up signal input
SEL LOAD :
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7
5
DCS
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20 WAKE-UP2
Ne
N
NO
Not used
22M
49M
NSMD
22 MHz oscillation selection switch output
49 MHz oscillation selection switch output
dS _
25
Take-up side end sensor LED ON/OFF control signal (“H”: OFF)
Take-up side end sensor LED ON/OFF control signal (“H”: OFF)
Supply side end sensor LED ON/OFF control signal (“H”: OFF)
Supply side end sensor LED ON/OFF control signal (“H”: OFF)
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3 Zz Z
Z
8
Reset input
GND
La) No)
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XTAL
41 EXTAL
42 SBSY
43 SBDT
44 SBDT
45 EXCK
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4
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