Sony LBT-A790 Service Manual page 9

@1C601 .PD78014CW-065 (SYSTEM CONTROL)
Pin No.| Pin Name | 1/0 Function
1 FLLATCH | 0 | Latch output to TD62C950RF (FLT-driver).
2 FLDATA | 0 | Serial-Data output to TD62C950RF.
3 FLCLK | © | Serial+Clock output to TD62C950RF.
4 FLCLR | 0 | Serial+Clear output to TD62C950RF.
5 | DSPSORG | 0 | Serial-Handshake-Request output to LC83015E.
s
6 DSP SO | O | Serial-Data output to LC83015E.
7 = —_| Not used.
8 | DSPSOCK | 0 |Serial*Clock output to LC83015E.
9 DSP SOAK | I | SerialsHandshake Acknowledge input from LC83015E.
10 | MREQ O | Communication request to »PD78014CW-057.
[ 1 | SREQ I | Acknowledge input from PD78014CW-057.
rr) MCLK 0 _| Serial-Clock to ~PD78014CW-057.
B MDATA | 0 | Serial-Data to ¢PD78014CW-057.
u—17 = — | Connect to GND.
18 KEY-01 | O_ | Keyscan & LED Digit 1
19 KEY-02 | O | Keyscan & LED Digit 2 7
20 KEY-03 | O | Keyscan & LED Digit 3
a KEY-01 | O | Keyscan & LED Digit 4 :
22 KEY-O1 O | Keyscan & LED Digit 5 7
23-25 = —_| Not used. ;
26 LEDI © [LED Scan Segment 1
27 LED2 0 | LED Scan Segment 2
28 LED3 O | LED Scan Segment 3
29-31 - — | Connect to GND. 7
32 vss —_ | Microcomputer+GND pin.
33 VOLLED | 0 | Volume LED ON/OFF.
34—40 = — | Connect to GND.
41 AuBOUT
| 0 | AU BUS output
=
2 = — | Connect to GND.
43
1 | Reset input
a
44 accuT | 1 [ACCUT
45 AUB IN 1 | AU BUS IN
46 | VOL DOWN | O | Volume Down ;
a7 VoL UP | O | Volume Up i
48 VDD VDD _
9 X2 — | Crystal connection pin of system clock oscillation. 7
50 x1 Crystal connection pin of system clock oscillation.
Bl IC — | Connect to GND. 7
52 eat — | Not used.
53, 54 =
— | Connect to GND.
x
55 VOL LOC | 1 | Volume position
56 KEY-IL I_ | Keyscan IN 1
57 | PEY-I2 I | Keyscan IN 2 i
58 KEY-13 I_| Keyscan IN 3
| 59 KEY-I4 1 [Keyscan IN 4