Diagrams; Ic Pin Function Description - Sony D-F181 Service Manual

QQ
3 7 63 1515 0
6-1. IC PIN FUNCTION DISCRIPTION
• IC1 µPC17072GB-552-1A7
Pin No. Pin Name
1 Unused
2 TUMUTE
3 SK
4 AMCTRL
5 CS
6 L/O-SW
7 IF-REQ
8 TUON
9 AVLS/XHOLD SW
10 XAVLS/XHOLD
11 CDON
12 HIDC/BATT
13 KEY/RMKEY
14 DO/DI
15 XDCDT
16 XTUNER SW-IN
17 AM/FM-IFC
18 GND
19 EO
20 VCOL
21 VCOH
TE
L 13942296513
22 VREG0
23 VDD
24 XOUT
25 XIN
26 VREG1
27 VLCD0
28 CAP0
29 CAP1
30 VLCD1
31 to 34 COM0 – COM3
35 to 49 SEG0 – SEG14
50 CE
51 XRMKEY-INT
52 BEEP
53 XST
54 TUREQ/XL/O
55 SCK/GROOVE
56 SDI/XBASS
www
.
http://www.xiaoyu163.com
SECTION 6

DIAGRAMS

I/O
O Unused
O H: mute on
O serial clock to EEPROM
O AM/FM band control. L-FM, H-AM
O EEPROM chip select
O pin 54 :- H: LINE OUT L: TUREQ
O request IF. *H only during auto scan*
O 'H' radio on
O pin 10 :-H: XAVLS L: XHOLD
I AVLS/HOLD input
I 'H': CD micon on
I HI-DC/BATT input (ADC)
I KEY/RMKEY input (ADC)
I/O serial data line to/from EEPROM
I DC in status input. L-DC in
I TUNER-ON/BAND key.
I AM/FM IF signal input
— ground
O PLL error output
I PLL local oscillator input (AM)
I PLL local oscillator input (FM)
— PLL voltage regulator
— positive power supply
— crystal resonator connection pins
— crystal resonator connection pins
— oscillation circuit voltage regulator
— LCD drive voltage
— capacitor for LCD drive voltage
— capacitor for LCD drive voltage
— LCD drive voltage
O LCD common signal output
O LCD segment signal output
I chip enable
I pin 13 :-H-main set key input L-remote control key input
O BEEP output (L/H/3kHz)
I Stereo detect
I serial input synchronize signal/LINE-OUT detect
I/O serial clock from CD micon/DBB output
I/O serial data from CD micon/DBB output
x ao u163
y
i
http://www.xiaoyu163.com
2 9
8
Description
Q Q
3 6 7 1 3 1 5
co
.
— 13 —
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9