Shift Register - Kenwood TM-V71A Service Manual

TM-V71A/V71E
Pin No. Port Name I/O
76 PKD_SEL
77 VU_TX
78 CM
79 MIC_DW
80 MIC_UP
81 SQ_B
82 SQ_A
83 SM_B
84 SM_A
85 TOIN_B
86 TOIN_A
87 SCB_C
88 S5M_C
89 BATT
90 DTMFPD
91 DTMFDT
92 DTMFCLK
93 DTMFDET
94 AVSS
95 AF_CAL
96 VREF
97 AVCC
98 AF_MUTE2
99 AF MUTE1
100 AMP_MUTE
12
SEMICONDUCTOR DATA
Function
PKD input switching (PKD (PNL) or
O
PKD (EXT))
L:VHF TX, H:UHF TX (V/U switching)
O
H: Mute
MIC key serial input terminal
I
(for MC-59)
MIC key (DOWN, MR, PF) input
I
(for MC-45)
MIC key (UP, CALL, VFO) input
I
(for MC-45)
I Noise level A/D input for B band
I Noise level A/D input for A band
I S-meter level A/D input for B Band
I S-meter level A/D input for A Band
B band (CTCSS, DCS, and WX)
I
decoder A/D input
A band (CTCSS, DCS, and WX)
I
decoder A/D input
+B power switch for control unit
O
(power supply for AF power amplifi er)
O Power switch for RS-232C driver
- Not used
Power down mode control terminal
of the DTMF IC (Reset processing
O
when the turning the transceiver
power ON.)
I DTMF serial data input
O DTMF clock
I DTMF data detection terminal
I GND
I Not used
I Reference voltage
I Analog power supply
AF mute 2 (Front of AF power amp-
O
lifi er) L: Mute
AF mute 1 (Front of AF power amp-
O
lifi er) L: Mute
AF power amplifi er mute switch
O
H: Mute
Shift Register: BU2099FV (TX-RX unit (A/6) IC576)
Pin Port
Pin name I/O
No. name
Wide/Narrow switching
6 Q0 WN_A O
SW for A band
7 Q1 VU_SEL_A O VCO VHF/UHF select
8V power supply control
8 Q2 8TVA_C O
switch for A Band VHF TX
5V power supply switch
9 Q3 5RUA_C O
for A Band UHF BPF
10 Q4 VHF_AIP O AIP switch (A band/B band)
11 Q5 FAN_C O FAN control switch
12 Q6 SFT_A O VCO switching (A band)
13 Q7 UHF_AIP O AIP switch (A band/B band)
8V power supply control
14 Q8 8TUA_C O
switch for A band UHF TX
5V power supply switch
15 Q9 5RVA_C O
for A band VHF BPF
16 Q10 BP_SFT_A O BPF shift switch for A band
5V power supply switch
17 Q11 5RAM_C O (DET A switching SW) for
A band AM
Shift Register: BU2099FV (TX-RX unit (A/6) IC577)
Pin Port
Pin name I/O
No. name
Wide/Narrow switching
6 Q0 WN_B O
SW for B band
7 Q1 VU_SEL_B O VCO VHF/UHF select
8V power supply control
8 Q2 8TUB_C O
switch for B band UHF TX
5V power supply switch
9 Q3 5RUB_C O
for B band UHF BPF
10 Q4 PR9_SEL O PR9 output switching SW
DET output switching SW
11 Q5 PR (PNL)_SEL O
to internal TNC
12 Q6 SFT_B O VCO switching (B band)
8V power supply control
13 Q7 8TVB_C O
switch for B band VHF TX
14 Q8 NC - Not used (5V)
5V power supply switch
15 Q9 5RVB_C O
for B band VHF BPF
5V power supply switch
16 Q10 5R8B_C O
for B band 800MHz BPF
17 Q11 BP_SFT_B O BPF shift switch for B band
Active
Function
level
H (Narrow)
/ L (Wide)
H: VHF
L: UHF
H
H
H
H
H: Shift ON
L: Shift OFF
H
H
H
H
H (DET A)
/ L (AM)
Active
Function
level
H (Narrow)
/ L (Wide)
H: VHF
L: UHF
H
H
H (DET_A)
/ L (DET_B)
H (DET_A)
/ L (DET_B
H: Shift ON
L: Shift OFF
H
H
H
H
H