Service Manual

20
40 P50/SCL0 SCL SCL
S
C
L
EEPROM CLOCK
41 P51/SDA0 SDA SDA
S
D
A
EEPROM DATA
42 P52/PPG1 AP/TU AP/TU
P
W
M
Auto power control/adjust
43 P53/TRG1 TX_CTRL TX_CTRL O
Tx power supply control “H”: valid
Transmission is on.
44 P60/PPG10 PLLCLK PLLCLK O PLL CLK
45 P61/PPG11 PLLDATA PLLDATA O PLL DATA
46 P62/TO10 PLLEN PLLEN O PLL ENABLE
47 P63/TO11 Reserve Reserve O Reserved
48 P64/EC1 Reserve Reserve O Reserved
49 P65/SCK Reserve Reserve O Reserved
50 P66/SOT Reserve Reserve O Reserved
51 P67/SIN Self Self I
For test (used to enter the factory clone mode,
connected with pull-up resistor)
52 P43/AN11 SPCNT SPCNT O
Power supply control of main audio "H": audio O
N
53 P42/AN10 PCONT PCONT O Power supply control pin of AN29160AA
54 P41/AN09 RLED RLED O Red LED
55 P40/AN08 GLED GLED O Green LED
56 P37/AN07 Reserve Reserve O Reserved
57 P36/AN06 Reserve Reserve O Reserved
58 P35/AN05 TI TI
I/
A
D
CTCSS/CDCSS input
59 P34/AN04 BUSY BUSY
I/
A
D
Channel busy check (requiring 10-digit AD)
60 P33/AN03 BAT_DET BAT_DET
I/
A
D
Battery voltage detect (requiring 10-digit AD)
61 P32/AN02 Reserve Reserve O Reserved
62 P31/AN01 Reserve VOX
I/
A
D
VOX detect (requiring 10-digit AD)
63 P30/AN00 Reserve Reserve O Reserved
64 AVss GND GND Power supply (GND) pin for A/D, ground