Sony WRU-806B Service Manual page 47

Pin No. Pin name
31 NC
32 to 35 COM0 - COM3
36 to 55 SEG00 - SEG19
56 LED_BATT
57 LED_AF
58 LED_RF
59 SQL
60 DIV
61 AFM
62 MS_DATA_POW
63 PLL_LD
64 PLL_LE
65 PLL_CLK
66 PLL_DATA
67 PLL_PS
68 NC
69 TONE
70 NOISE
71 TONE_BATT
72 NC
73 INNER_ST
74 NC
75 SHDN
76 RSSI-A
77 ALO
78 RSSI-B
79 MS_ADDR
80 Avss
WRU-806B
I/O Description
O Not used
O Terminal COM 0 to 3 for LCD output
O Terminal SEG 0 to 19 for LCD output
O When the battery tone signal is continuously detected for 30 seconds or
more, it blinks.
. High: LED on
. Low: LED off
O AF: It lights with 5kHz Dev or more.
. High: LED on
. Low: LED off
O It lights more than squelch level.
. High: LED on
. Low: LED off
I It enters the learning mode if it is Low when the power supply is turned on.
Low: SQL learning mode
O Diversity switch
. Low: Antenna-a
. High: Antenna-b
O AF muting
Low: mute
O The pull-up resistor is selected, and the amount of the current to the data
line of the intermodule communication is adjusted.
. Low: Pull-up (high electrical current) - Output
. High: Pull-up (low electrical current) - Input
I LoadEnable terminal of PLL
. High: Enable
. High: Disable
O LoadEnable terminal of PLL
. High: Enable
. High: Disable
O Binary serial clock input
O Binary serial data input
O Power save control terminal
. High: Normal mode
. High: Power save mode
O Not used
I 32.768 kHz tone detection
. Low: When tone is detected
I Noise detection
I Battery tone (32.782 kHz) detection
. Low: When battery tone is detected
O Not used
I For start timing watch of the intermodule communication
External interrupt port
O Not used
I When power-supply voltages decrease more than thresholds, power off is
processed.
I RSSI level value of antenna A
I AF level value
I RSSI level value of antenna B
I Master/Subordinate (sub) distinction
A peculiar voltage to the slot of the tuner base unit is detected, and slot
No. is distinguished.
I _
4-3