Semiconductor Data. Csssscsssssssssessssccessnssesenseans - Kenwood TH-22A Service Manual

TH-22A/AT/E
SEMICONDUCTOR DATA
Microprocesser : HD404629B17TF control unit (IC206)
e Pin connection diagram
100 (——),: VT ref
99 [-—_3> TONER
98 [a TONEC 97 [>
Vee 96 | V3
95 v2 4 CT v1
93 [1 com4 92 [2 cOom3 91 [9 COM2
390 > com
89 [-—— SEG52 88 [2
SEG51 87 ("J
SEG50 86 [—— SEG49 85 (>) SEG48
84 [WW SEG47 83 [- SEG46 82 (FY) SEG45
81 [> SEG44
80 [I SEG43
79 [75 SEG42
7g (2) SEG4I
77 (J SEG40 76 | SEG39
AVce [TZ 1 75 (77) SEG38
ANO Co] 2 74 [ —") SEG37
ANI [7] 3 73 (| ———) SEG36
AN2 [oT 4 72 (-——_) SEG35
AN3 Co 5§ 71 [= SEG34
AVss [16 70 (= SEG33
TEST C1 7 69 (— ——) SEG32
osc1:C I 8 68 [ ——) SEG31
osc2 C19 67 F —— SEG30
RESET C7] 10 66 |") SEG29
x1 C4 65 | ——] SEG28
x2 Co 12 64 9 SEG27
GND Co} 13 63 (=) SEG26
DO 14 62 [J SEG25.
D1 —— 15 61 | ——) SEG24
02 Co 16 60 F=—— SEG23
03 Co 17 59 ( —— SEG22
D4 Co ig 58 [7 seG21
DBDs Co 19 57 | ——_) R73/SEG20
Dé C4 20 56 FF —_2) R72/SEG19
o7 CS 21 55 | ——) R7 /SEG18
Ds CZ) 22 54 1") R70/SEG17
03 C=} 23 53 [-——) R63/SEG16.
D1g/STOPC Co 24 52 | —— R62/SEG15
DIVINTG C$] 28 Ne OR MM OrNDEeMOR 51 [——" R61/SEG14
NAAN OH HY OBYH MN HN MN Ft seorgst ts g 3 8
TAM *TOOVAMAIZMARor WI VMTF HY OR WHOM NM
e@eekeer ge "EPL ZZZEES SBS
e Pin function
Pin No. Pin name Port name yo Function
1 AVcc AVCC A/D converter power supply.
2 ANO BATT | Battery check during transmission.
3 AN1 SM { S-meter voltage check,
4 AN2 REM | Remote contro! switch voltage check.
5 AN3 BUSY i BUSY port voltage check.
6 AVSS AVSS AVcc ground.
7 TEST TEST | Connect to Vcc.
8 Osc Osc { Internal oscillator input.
9 OSC2 osc2 1@) Internal oscillator output pin.
10 RESET RESET i MCU reset. (T edge)
4 x1 x1 | Connect to Vcc.
12 X2 x2 Release.
13 GND VSs GND
14 DO 3RC oO Receive VCO power supply control output.
15 D1 CK .@) Clock output to PLL, CTCSS, EEPROM, DTMF decoder.
16 D2 DT (0) Data output to PLL, CTCSS, DTMF decoder.
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