Kenwood TM-V7A Service Manual page 20

TM-V7A/E
20
SEMICONDUCTOR DATA
Pin Pin code vO Function Active
No. level
55 P_KEY4 { MHz KEY L
56 P_KEY5 | F KEY L
57 P_KEY6 I TONE KEY L
58 P_KEY7 I REV KEY L
59 P_KEY8 | LOW KEY L
60 RESET I Reset input
61 P_ENCCK l Encoder clock (encoder A signal)
62 P_INT1- I Connected to P_S!
63 P_PWR I Power switch
64 P_ENCDT | Encoder data (encoder B signal)
65 P_BCHK ! Power voltage check
66 POS/INTPS { Connected to Vss
67 POG/INTPS I
68 Vpp Microprocessor power
69 X2 Clock osciliator connection (4.19M)
70 x1
71 IC (Vpp)
72 XxT2
73_| XT1/P07
74 AVpb A/D converter analog power
75 AVREF A/D converter reference voltage
76 P_SQLU | 430MHz band squelch input
77 P_VOLU I 430MHz band volume input
78 P_SQLV | 144MHz band squeltch input
79 P_VOLV | 144MHz band volume input
80 P14/AN14 I Connected to Vss
78PO58GCJRHC: K TX-RX (CONT):1C508
JRJC:E,M
Pin Pin code Vo Function Active
No. level
1 P_SCU I Squeich input (UHF)
2 P_DWAN I MIC DOWN, MR, PF
3 P_UPAN I MIC UP, CALL, VFO
4 AVss A/D converter reference ground
5 P_TONE Oo Sub-tone output
6 P_DTMF ie) DTMEF output
7 AVREF1
8 P_RXD | TNC RXD/P_PKS
9 P_TXD 8) TNC TXD/P_SQ
10 P_PTT I MIC PTT L
11 P_EPV (0) PLL enable (VHF)
12 P_CKV oO PLL, shift register clock (VHF)
13. P_DTV ie} PLL data (VHF)
14 P_ULKU I PLL unlock detection (UHF)
15 P_ULKVU I PLL unlock detection (VHF)
16 P_SI | Panel microprocessor SO
17 P_SO ie) Panel microprocessor SI
18 P27/SCKO 2) Not used (Open)
19 P_ESM ie) External speaker mute H
20 P_ISM. oO Internal speaker mute H
21 P_EPU 8) PLL enable (UHF)
22 P_CKU ie) PLL, shift register clock (UHF)
23 P_DTU oO PLL data (UHF)
24 P_ESU ie) Shift register clock (UHF)