Diagrams; Ic Pin Description - Sony CDX-1200 Service Manual

3-1. IC PIN DESCRIPTION

• IC600 µPD78005GC-133-8BT (SYSTEM CONTROL)
Pin No. Pin Name
1 MCLK
2 MDATA
3 MLD
4 AVSS
5 DSTSEL0
6 DSTSEL1
7 AVREF1
8 SUBQ
9 —
10 SQCK
11 LCDCE
12 LCDSO
13 LCDCKO
14 ILLON
15 UNICKI
16 UNISI
17 UNISO
18 UNICKO
19 SBCK
20 BUSON
21 SYS RST
22 RST
23 FOUT
24 ROUT
25 CD-ON
26 PW-ON
27 LIMSW
28 FLAG
29 SENS
30 FLOCK
31 TLOCK
32 STATE
33 VSS1
34 VIB.
35 CDM-ON
36 AMPMUT
37 A-MUT
38 AD-ON
39 PW-SEL
40 NOSESW
41 TEST
42 TELMUT
43 ACCIN
44 VOLCE
45 VOLSO
46 BEEP
47 TUNON
48 FMON
49 PLLCE
50 VOLCKO
51 PLLSO
12
SECTION 3

DIAGRAMS

I/O
O Microcomputer command clock signal output (data latch on rising)
O Microcomputer command data signal output
O Microcomputer command load signal output
— Analog ground
I Destination select setting input (Connect to ground in this set.)
I 9k/10k select setting input ("L": 9 kHz step, "H": 10 kHz step)
I Analog reference voltage input
I Sub code Q data input
— Not used.
O Clock output for sub code Q register.
O LCD driver serial chip enable output
O LCD driver serial data output
O LCD driver serial clock output
O Illumination power control output
I SONY-BUS serial interface clock input
I SONY-BUS serial interface data input
O SONY-BUS serial interface data output
O SONY-BUS serial interface clock output
O Clock output for error correction result read-in.
O BUS ON control output
O System reset control output
O DSP reset signal output ("L" active)
O Loading motor control output (Forward direction)
O Loading motor control output (Reverse direction)
O CD power control output
O System power control output
I LIMIT switch input ("L" active)
I Data input for error correction result read-in.
I SENS signal input
I Focus servo pulling signal input ("L" active)
I Tracking servo pulling signal input ("L" active)
I Status signal input
— Ground
I/O Vibration lens input/output
O CD machanism power control output
O Power amplifier mute control output
O Audio mute control output
O Power control output for A/D conversion.
O Not used in this set.
I Front panel attachment detection input
I Test mode direct setting input
O Not used in this set.
I Accessory power supply voltage detection input
O Electric volume serial chip enable output
O Electric volume serial data output
O Beep output
O Tuner ON output
O FM ON output
O PLL chip enable output
O Electric volume serial clock output
O PLL data output
Pin Description