Sony CDP-D500, Service Manual

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1 XTAL O
Clock (19.6608 MHz)
2 EXTAL I
3 MD1 I Mode select
4 MD0 I Mode select
5 NMI I Connected ground
6 VDD – +5V power supply
7 STBY I Connected VDD (+5V)
8 VSS – Ground
9-11 DIN1-DIN3 I Parallel remote control input
12 RM MODE I Parallel remote control mode select
13 CTS I Serial remote control enable transmitter
14 RTS O Serial remote control enable receive
15 – – Not used (open)
16 SYNC SW I EXT SYNC ON/OFF SWITCH detection
17 TXD O Serial remote control output
18 RXD I Serial remote control input
19 EXWARD I EXT SYNC frequency detection
20 V/S SEL O VARI SPEED and EXT SYNC filter select
21 SUBQ I Subcode Q data input from main µ-COM
22 SQCK I Subcode Q clock input from main µ-COM
23 SCOR I Subcode Q interrupt input from DSP
24 DATA1 O Data output to main µ-COM
25 H8 CLK I Clock input from main µ-COM
26 DATA 0 I Data input from main µ-COM
27 AS O Address strobe of S-RAM
28 WR O Write enable output
29 RD O Read enable output
30 WAIT I Connected ground
31 VDD – +5V power supply
32-34 – – Not used (open)
35-39 A12-A18 O S-RAM address appoint port
40 VSS – Ground
41-48 A7-A0 O S-RAM address appoint port
49-56 D0-D7 I/O S-RAM data read and write port
57 SCLK O CD text data clock output to S-RAM
58 SRDT I CD text data input from S-RAM
59 DQST I CD text interrupt input from S-RAM
60, 61 DIN5, DIN4 O Parallel remote control output
62 MODE 0 I Move mode select input
63 MODE 1 I Move mode select input
64 XRST I Reset input
Pin No. Pin Name I/O Function
6-8. IC PIN FUNCTION DESCRIPTION
MAIN BOARD IC501 HD6473238F-TTX1025 (SUB CONTROL)
www.freeservicemanuals.info 6/8/15
Also made in Heiloo, Holland.