HYT TC-700P, Руководство по обслуживанию

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TC-700P Service Manual
15
21 P7_5/TA2IN SHIFT O Shift
22 P76/TA3O CTC_OUT O
(PWM) CTCSS / CDCSS
output to VCO for modulation
23 P75 GPS_In I GPS input
24 P74/TA2O CTC_PLL O
(PWM) CTCSS / CDCSS
output to PLL for modulation.
25 P73 AUX2 I/O
Programmable port used for
future development. Used for future
development.
26 P72/TA1O NC
27
P71/RxD2/T
B5IN
Accessory
Port (patrol
record)
OPEN DRAIN
OUT
28 P70/TxD2
Accessory
Port (patrol
record)
OPEN DRAIN
OUT
29 P67/TxD1 TXD1 O
Serial data output
(communicate with the
computer)
(PROG10)
30 P66/RxD1 RXD1 I
Serial data input
(communicate with the
computer)
(PROG4)
31 P65 NC
For programming only
(grounded through a 47K
resistor)
(PROG3)
32 P64 NC
For programming only.
monitor output.
(PROG2)
33 P63/TxD0 TXD0 O
Connected with the optional
board Used for future
development.
34 P62/RxD0 RXD0 I
Connected with the optional
board Used for future
development.
35 P61 EEP_SI I AT25 EEPROM data input
36 P60
EEP_CLK
O
AT25/AT24 EEPROM clock
output
37 P57/RDY EEP_ID I
1: 1M EEPROM
0: 512k EEPROM
38 P56/ALE NC
39 P55/HOLD NC
For programming only.
(grounded through a 47K
resistor)
(PROG6)
40 P54/HLDA AF_DIR O
AK2346 DIR, data
transmission direction control
(H: output control word; L:
read data).
41 P53/BLCK AF_SCK O AK2346 SCLK output