Sony CDP-CE545 Service Manual page 34

• MAIN BOARD IC301 CXP84648-066Q (SYSTEM CONTROLLER)
Pin No. Pin Name
1 to 4 A3 to A6
5
GND
6 to 13 D0 to D7
14 PLAY L
15 PAUSE L
16 MEGA L
17 XFADE L
18 NODELAY L
19
WE
20 LOAD IN
21 LOAD OUT
22
FL CLK
23
FL DATA
24
BLK
25 to 27 A13, A14, A7
28
DSENS
29
NC
30
RST
31
EXTAL
32
XTAL
33 VSS
34
TX
35
TEX
36
AVSS
37 AVREF
38 BUSOUT
39 NC
40 KEY6
41 KEY3
42 NC
43 KEY2
44 KEY1
45 TEST
46
TSENS
47 FLT
48 CLK
49 NC
50 DATA
34
I/O
Address signal output to the static RAM (IC302)
O
— Ground terminal
I/O Two-way data bus with the static RAM (IC302)
H LED (D802) drive signal output terminal "H": LED on
O
O X LED (D803) drive signal output terminal "H": LED on
O MEGA CONTROL LED (D801) drive signal output terminal "H": LED on
O X-FADE LED (D805) drive signal output terminal "H": LED on
O NO DELAY LED (D804) drive signal output terminal "H": LED on
O Write enable signal output to the static RAM (IC302)
O Loading motor (M11) drive signal output to the BA6780 (IC11) *1
O Loading motor (M11) drive signal output to the BA6780 (IC11) *1
O Serial data transfer clock signal output to the FL driver (IC801)
O Serial data output to the FL driver (IC801)
O Blank signal output to the FL driver (IC801)
O
Address signal output to the static RAM (IC302)
I Detect signal input from the disc sensor (D11)
O Not used (open)
System reset signal input from the reset signal generator (IC601) "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
I Main system clock input terminal (10 MHz)
O Main system clock output terminal (10 MHz)
— Ground terminal
O Sub system clock output terminal Not used (open)
I Sub system clock input terminal Not used (fixed at "L")
— Ground terminal (for A/D converter)
I Reference voltage input terminal (+5V)
O Sircs remote control signal output to the CONTROL A1II
O Not used (open)
Key input terminal (A/D input) (S814 to S820)
I PROGRAM, SHUFFLE, CONTINUE, PEAK SEARCH, EDIT/TIME FADE, MENU, FADER
keys input
Key input terminal (A/D input) (S921 to S927)
I
TIME/TEXT, REPEAT, DISC 5 to DISC 1 keys input
O Not used (open)
Key input terminal (A/D input) (S901 to S907)
I
DISC SKIP, EX-CHANGE, CLEAR, CHECK, M, m, MEGA CONTROL keys input
Key input terminal (A/D input) (S808 to S813, S829)
I
A OPEN/CLOSE, x, X, H, X-FADE, NO DELAY, l AMS L keys input
I Setting terminal for the test mode "L" active
I Detect signal input from the table sensor (D10)
O Serial data latch pulse output to the FL driver (IC801)
O Serial data transfer clock signal output to the CXD2587Q (IC101)
O Not used (open)
O Serial data output to the CXD2587Q (IC101)
Description