7-2. BLOCK DIAGRAM – MAIN Section –
CN300 (1/2)
BUS
AUDIO IN
L
R
(Page 21) | B | AM |
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(Page 21) | D | TAPE L |
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(Page 21) | C | |
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(Page 21) | A | MPX |
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| INPUT SELECT, FM MPX, |
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| ELECTRICAL VOLUME |
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| IC100 |
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| OUTSSL | 24 |
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| OUTSSR | |
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| 23 | |
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| SEL |
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| TONE |
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| OUT LF | 30 |
1 |
| MULTIPLEXER | LOUDNESS | SOFT |
| MONO | MIXER |
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| INPUT | OUTPUT SELECTOR | OUTSWR |
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| MUTE |
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| VOLUME | MUTE | CONTROL |
| FADER |
| OUT LR | 29 |
11 |
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4 | FD1L– |
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| OUTSWL |
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| SUBWOOFER | MONO |
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| +PHASE CONTROL | FADER |
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12 | AMIF |
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| AM/FM NOISE |
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| BLANKER |
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| CANCELATION |
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| DEMODULATOR |
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| CUT |
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13 |
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| L.P.F |
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| PILOT |
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| STEREO ADJUST |
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| MPX |
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| STEREO BLEND |
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| PILOT DET |
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| PLL |
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| D/A |
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| DIGITAL |
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| CONVERTER |
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| CONTROL |
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| IIC BUS |
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| QUAL |
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| SDA | SCL |
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| QUALITY | SM |
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| LEVEL | MPIN |
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20 | 21 | 17 | 18 | 14 15 |
| SPEANA | H (Page 23) |
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| CN300 (2/2) |
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MUTING |
| AUDIO OUT |
Q250 |
| FRONT |
R |
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MUTING |
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Q251 |
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MUTING |
| AUDIO OUT |
Q200 |
| REAR |
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D203 |
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MUTING |
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Q201 |
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(Page 21) G | LEVEL |
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| POWER AMP |
| CN301 (1/2) |
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| (POWER CONNECTOR) | |
| IC300 |
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| 5 | 1 |
| OUT2+ | FL+ | |
12 | IN2 |
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| OUT2– | 3 | FL– |
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| OUT4+ | 21 | FR+ |
14 | IN4 |
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| OUT4– | 23 | FR– |
(Page 21) E | DATA, CLOCK |
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•
•SIGNAL PATH
:FM
: MW/LW
: TAPE PLAY
: BUS AUDIO IN
DATA
CLOCK
70 | 71 | 31 |
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| VOL ATT | 84 | ||||
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| TESTIN | |||
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| SYSTEM CONTROLLER |
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| IC601 (2/4) |
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| 2 |
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| OUT1+ |
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| RL+ | |
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| 11 | IN1 |
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| OUT1– | 7 |
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| RL– |
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| 3 |
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| OUT3+ | 17 |
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| RR+ |
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| 15 | IN3 |
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| OUT3– | 19 |
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| RR– |
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| MUTE | STBY |
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| 22 | 4 |
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| 15 |
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| TEST |
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| ATT SWITCH |
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| 13 |
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| Q603 |
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| AMP ON | I | (Page 24) |
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| AMP MUTING |
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| SWITCH |
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| Q222 |
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| MUTE | J | (Page 23) |
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BATT | D205 | BATTERY OFF |
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| MUTING | D201 |
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| MUTING DRIVER |
| BATT |
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B+ |
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| CONTROL SWITCH |
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| Q223 |
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| B+ |
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| Q220, 221 |
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MUTE 5
D206 |
22 22
