Sony CDP-CX333ES - Es 300 Disc Cd Changer, Руководство по обслуживанию

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MAIN BOARD IC501 MN101C12GSA1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O Description
1 GND — Ground terminal
2 DOOR SW I Door open/close switch (SW83, SW84) input (A/D input) “H”: open
3 FILTER SW I FILTER switch (S706) input (A/D input) “H”: STD, “L”: 1 (2: center voltage input)
4
KEY1
I
Key input terminal (A/D input) GROUP2/3/4, CONTINUE, SHUFFLE, PROGRAM, REPEAT
keys input and rotary encoder jog dial pulse input (S731 to 737 and RE702)
5
KEY2
I
Key input terminal (A/D input) GROUP FILE, GROUP8/7/6/5/1, I/
u
, TIMER keys input
(S721 to 728)
6
KEY3
I
Key input terminal (A/D input) HIT LIST, TIME TEXT, YES, +100, MENU/NO keys input
and rotary encoder jog dial pulse input (S741 to 745 and RE702)
7
KEY4
I
Key input terminal (A/D input) CLEAR, FADER, CHECK, NO DELAY, MEMO SEARCH,
X-FADE keys input and rotary encoder jog dial pulse input (S751 to 756 and RE701)
8 KEY5 I
Key input terminal (A/D input)
EASY PLAY, MEGA CONTROL,
p
,
P
,
·
,
§
OPEN/CLOSE keys input and rotary encoder
jog dial pulse input (S761 to 766 and RE701)
9
D.SENS
I
Disc in detect sensor (D81, Q81) input (A/D input)
10
VREF
I
Reference voltage (+5V) input terminal (for A/D converter)
11
VDD
—
Power supply terminal (+5V)
12
X'TAL OSC1
O
Main system clock output terminal (10 MHz)
13
X'TAL OSC2
I
Main system clock input terminal (10 MHz)
14
VSS
—
Ground terminal
15
XI
I
Sub system clock input terminal Not used (open)
16
XO
O
Sub system clock output terminal Not used (open)
17
GND
—
Ground terminal
18
AC IN
I
Power monitor input terminal
19
ICSW (RELAY
ON/OFF)
O
Relay drive signal output for the power on/off control “H”: relay on
20
LEDLT
O
Serial data latch pulse output to the LED driver (IC702)
21
FLDATA
O
Serial data output to the FL driver (IC701) and LED driver (IC702)
22
FLLT
O
Serial data latch pulse output to the FL driver (IC701)
23
FLCLK
O
Serial data transfer clock signal output to the FL driver (IC701) and LED driver (IC702)
24
RESET OUT
O
System reset signal output to the CXD2587Q (IC101) and BA6392FP (IC102) on the CD block
and FL driver (IC701) “L”: reset
25
STANDBY-LED
O
LED drive signal output of the STANDBY indicator (D710) “H”: LED on (standby mode)
26
RMIN
I
Remote control signal input from remote control receiver (IC703)
27
T2
I
Table position sensor (IC82) input terminal
28
T4
I
Table position sensor (IC84) input terminal
29
BUSIN
I
Sircs remote control signal input for the CONTROL A1
ΙΙ
(J901, 902)
30
SCOR
I
Subcode sync (S0+S1) detection signal input from the CXD2587Q (IC101)
31
KBCIN
I
Serial data transfer clock signal input from the KEYBOARD (J821)
32
T1
I
Table position sensor (IC81) input terminal
33
RESET
I
System reset signal input from the reset signal generator (IC931) “L”: reset For several
hundreds msec. after the power supply rises, “L” is input, then it change to “H”
34
KBCOUT
O
Serial data transfer clock signal output to the KEYBOARD (J821)
35
KBDOUT
O
Serial data output to the KEYBOARD (J821)
36
KBDIN
I
Serial data input from the KEYBOARD (J821)
37
TEST-PULSE2
O
Disc in detect sensor test output terminal
38
TEST PULSE
O
Disc in detect sensor test output terminal