Sony WRR-862A, Service Manual, Page: 68 / 96

5-6
WRR-862A/862B
PIN SIGNAL I/O DESCRIPTION
1 to 20 S31 to S12 OUT LCD segments control
21 to 24 COM0 to COM3 OUT LCD commons control
25 BIAS OUT Power supply for LCD drive
26 to 28 VLC0 to VLC2 IN Power supply for LCD drive
29 LEDRFaR OUT RF LED (red) antenna a
30 LEDRFaG OUT RF LED (green) antenna a
31 LEDRFbR OUT RF LED (red) antenna b
32 LEDRFbG OUT RF LED (green) antenna b
33 VSS IN Ground
34 LEDTXBATT OUT TX BATT LED
35 BL OUT Back light
36 PSM OUT Monitor Power Save
37 MUTEM OUT Monitor Muting
38 RXD IN Received Data
39 SCK IN/OUT Master/Slave interface Clock
40 SO OUT Master/Slave interface Data
Out
41 SI IN Master/Slave interface Data
In
42 DISP IN DISP switch
43 + IN + switch
44 _ IN _ switch
45 SET IN SET switch
46 CLK OUT EEPROM/PLL Clock
47 DATA OUT PLL Data
48 LE OUT PLL Load Enable
49 PS OUT PLL Power Save
50 LD IN PLL Lock Detect
51 PLL-POWER OUT PLL Power
PIN SIGNAL I/O DESCRIPTION
52 DI/DO IN/OUT EEPROM Data In/Out
53 POFFIN IN Power OFF Detect
54 TEST IN TEST mode
55 LEARN IN LEARN mode
56 MUTE IN Squelch switch
57 CONT IN Control switch
58 VCCDIST1 IN Battery voltage
59 VCCDIST2 IN External DC voltage
60
_
IN NC
61 ALO IN AF Level
62 RSSIa IN RSSI antenna A
63 RSSIb IN RSSI antenna B
64 AVSS IN Ground
65 AVREF IN A/D converter Reference
Voltage
66 VDD IN Vdd
67,68 XT1,XT2 IN NC
69 VPP IN Vpp
70,71 X1,X2 IN 4MHz clock
72 RESET IN RESET
73 NOISE IN Noise detect
74 TXBATT IN Trasnmitter battery status
detect
75 TONE IN Tone detect
76 M/S IN Master/Slave select
77 DIV OUT Diversity control
78 AFM OUT AF mute
79 TXD OUT Transmitted Data
80 WP OUT EEPROM Write Protect
CPU Pin Description : IC1301, IC1401
UPD753036GK
—TOP VIEW—
61
66
69
80
GND
NC
NC
GND
40
33
21
GND
GND
V
DD ( + 5 V)
NC
NC
NC
NC
NC
60 41
1
20
V
DD
(
+
5 V
)
NC NC NC NC
GND