Diagrams; Ic Pin Descriptions - Sony WX-4500X Service Manual

WX-4500X

6-1. IC PIN DESCRIPTIONS

• IC103 µPD780058GC-259-8BT (CD MECHANISM CONTROLLER)
Pin No. Pin Name
1 RST
2, 3 —
4 AVSS
5 —
6 J/E, CE
7 A VREF1
8 SUBQ
9 —
10 SQCK
11 STAT
12 FL-M- > F
13 MCLK/FL-CLK
14, 15 —
16 BUS SI
17 BUS SO
18 BUS CLK
19 —
20 TLOCK
21 FLOCK
22 SENCE
23 —
24 —
25, 26 —
27 MLD
28 MDATA
29 LINK OFF
30 A MUTE
31 MECHA ON
32 —
33 VSS
34 —
35 CD ON
36 – 38 —
39 —
40 —
41 —
42 SER OK
43 SER NG
44 – 51 —
52 TEXT
53 SERCHK
54 P TEST
55 LIMSW
56, 57 —
22
SECTION 6

DIAGRAMS

I/O
O Reset signal output to the MN6627481RPMFA (IC101) "L" : Reset
O Not used in this set (open)
— Ground pin (for A/D converter)
O Not used in this set (open)
I Destination initial setting pin Fixed at "H" in this set
I Reference voltage (+5 V) input (for D/A converter)
I Sub code Q data input from the MN6627481RPMFA (IC101)
O Not used in this set (open)
O Clock signal output for sub code Q data write to the MN6627481RPMFA (IC101)
I Internal status signal input from the MN6627481RPMFA (IC101)
O Data write signal to external flash memory Not used in this set (open)
O Clock signal output for command data from the MN6627481RPMFA (IC101)
O Not used in this set (open)
I Serial data input from SONY bus interface (IC750)
O Serial data output to SONY bus interface (IC750)
Serial clock signal input/output for bus interface to the master controller (IC700) and
I/O the display controller (IC900), or serial clock signal output to the SONY bus
interface (IC750)
Through pin of serial clock signal for the bus interface
I
Connect to the BUS CLK (pin qk)
I Tracking servo pull-in signal input from the MN6627481RPMFA (IC101) "L" : Active
I Focus servo pull-in signal input from the MN6627481RPMFA (IC101) "L" : Active
I Internal status (SENSE) input from the MN6627481RPMFA (IC101)
Through pin of serial clock signal for the bus interface
I
Connect to the BUS CLK (pin qk)
O Through pin of bus serial data out Connect to the BUS SO (pin qj)
I Through pin of bus serial data in Connect to the BUS SI (pin qh)
O Command road signal output from the MN6627481RPMFA (IC101)
O Command data signal output from the MN6627481RPMFA (IC101)
Link on/off control signal output for SONY bus interface
O
"L" : Link off, "H" : Link on Not used in this set
O Audio line mute control signal output "H" : mute on
O Power on/off control signal output of CD mechanism deck block "H" : Power on
I Through pin of power supply Connect to the VDD (pins yk, uf)
— Ground pin
I Through pin of battery down voltage detection signal
O Power on/off control signal output of CD mechanism deck block
O Not used in this set (open)
I Through pin of bus on/off control signal
O Not used in this set (open)
I Test signal input of auto adjustment
O Effect discrimination out of auto adjustment "H" : OK
O Effect discrimination out of auto adjustment "H" : NG
O Not used in this set (open)
Initial setting input used to with/without the CD text decording function
I
"L" : without, "H" : with
O Not used in this set (open)
O Not used in this set (open)
CD sled limit in detection switch input
I
"L" signal is input when the optical pick-up comes on the innermost perimeter
O Not used in this set (open)
Pin Description