REV
A
P.A. MODULE
| TCXO |
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| IC2 |
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| TCXO (12.8MHz) |
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| TX BUFFER |
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| PLL CIRCUIT |
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| TX VCO |
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| L.P.F. |
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| Q501 |
| Q502 | Q503 |
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| TCXO1 |
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| C21,C22 |
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| R |
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| Q202/203 |
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| ANT SW | ANT | ||
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| CONT |
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| Ref Freq |
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| Q16/Q17 |
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| Q6,7,8,11 |
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| TX VCO |
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| D5 |
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| PLL EN |
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| L/D |
| DATA |
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| D6 |
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| CURRENT SENSOR |
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| MOD |
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| V Batt |
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TCXO MOD |
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| CPU | F in |
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| TX 5V |
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| +5V |
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| Q22 |
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| Q5 | B+ |
| 16V |
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| CONTROL |
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| INVERTER |
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| IC3B |
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| IC3A |
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| DC/DC CONVERTER |
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| RV1 | CURRENT DETECTOR |
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| LOCAL LPF |
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| POWER ADJUST |
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| HI |
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| BALANCE |
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| Q12 |
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| L1,L2 |
| RV3 |
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| RV401 |
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| IC411 |
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| RX BUFFER |
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| IC406B |
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| POWER ADJUST |
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| IC405B | IC401A |
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| Q302/303 |
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| LOW |
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| 1 | 2 |
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| RX VCO |
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| CONT |
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| TX B+ |
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| BUFFER | 3 |
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| 14053 X |
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| TX B+ |
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| RV403 |
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| 6TH LPF |
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| R478,479,480 |
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| IC407 | MF6 |
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| SUB AUDIO LEVEL |
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| CTCSS/DCS |
| T2/3/D9 | FILTER |
| LOW NOISE AMP | FILTER |
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| ENCODE |
| MIXER |
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| 14503 Y |
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| Q60 |
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| IC407 |
| IC406C |
| IC407 |
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| IC406A |
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| RX |
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| 5V |
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| 2ND LPF |
| 2ND LPF |
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| 25KHz BAND PASS |
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| 2ND |
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| CF1 |
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| LPF |
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| X1 | 455KHz |
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| X401 |
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| 12.5KHz BAND PASS |
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| 2nd LOCAL |
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| CALL DET |
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| 44.645MHz |
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| L/D |
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| T1 |
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| CH SEL |
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| 3.57 |
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| RX +5V |
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TX/RX INDICATION |
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LED1 |
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| SUB AUDIO |
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| XF1 |
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DUAL COLOR |
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| 1st IF FILTER |
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| ENCODE |
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| 1st IF AMP |
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| LED |
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| 45.1MHz |
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| Q404/405 |
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| CONT |
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| LED |
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| IC409 |
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| DRIVER |
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| Q403/417 |
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| CPU |
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| IC5 | IF IC |
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| Q25 | MIXER | SQ IN |
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| LOW BATT |
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| MON |
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| INPUT |
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| MUTE | AF OUT | FIL IN | FIL OUT |
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| PTT |
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| Q24 |
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| INVERTER |
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OPTION |
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| 386 EN | ALERT |
| BUSY |
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| Q410 |
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| RESET |
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| IC408 |
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| RV2 |
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| EEPROM |
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| L16/C111 |
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| SQ LEVEL |
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| INTEGRATER |
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| Q27 |
| Q26 |
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| NOISE AMP |
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| NOISE FILTER |
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| RX +5V |
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CON701 |
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| IC411 |
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| RV402 |
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| IC6 |
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3 | +7.5V |
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| IC410 |
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| TX MOD LEVEL | IC 404A/B |
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| AF LEVEL |
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| LM386 |
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| 14503 Z |
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| IC404C/D |
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| AUDIO AMP |
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| 300HZ HPF |
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| 3KHz LPF |
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| R451/C471 |
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5 |
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| IC402 |
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| VR3 |
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6 | GND |
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7 | MIC |
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8 |
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9 | SPK |
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| 5 |
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10 |
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| TX AF AMP |
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11 |
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| SPLITTER FILTER |
| DEMPHASIS |
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12 |
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12PIN |
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| CPU AF MUTE |
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MIC1 |
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SP1 |
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| D15 |
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| CHARGE |
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| VCC | VCC | 5V REGULATOR |
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| FUSE |
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| V Batt |
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| 5V |
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| IC1 |
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| D16 |
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| REVERS PROTECTOR |
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REVISIONS
DESCRIPTION | CHG | BY |
DATE | ||
RELEASED TO MANUFACTURING | DGC | 03/01 |
TITLE
SYSTEM ELECTRICAL
BLOCK DIAGRAM
DOCUMENT | SIZE | B | ||
NUMBER |
| |||
SCALE | NA | SHEET | 1 OF 1 | |