4-5. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section –
BACKUP +5V
RAM RESET
IC802
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| BACKUP +5V | GENERATOR |
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| IC801 |
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| D916 |
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| S900 |
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CNJ600 | SONY BUS INTERFACE | RESET | D702 | ||
BUS CONTROL IN |
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| IC600 |
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(FOR SONY BUS) |
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2 | RST | RESET | RST | 13 |
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RESET |
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2 | SWITCH |
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5 | DATA | DATA IN | 9 |
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DATA | 6 |
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| DATA OUT | 8 | ||
4 | CLK |
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CLK |
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4 |
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BUS ON SWITCH | BUS ON |
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Q600 |
| BUS |
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6 | OUT | BUS ON | ON IN |
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BUS ON | 12 | ||||
1 | SWITCH |
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BATT | 7 |
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| 3 | BATT | BATTERY | BU IN | |||||||
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| SWITCH | 10 | |||||||||
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| TH600 |
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| D604 |
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| D603 |
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| BATT B+ |
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| BATTERY |
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| DETECT |
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(Page 24) | J | MUTE |
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| Q601 |
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| H | AMP ON |
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| D607 | ||||||
(Page 24) |
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LEVEL SHIFT
Q603
05
MASTER CONTROLLER
IC700 (4/4)
102 RAMBU
90 RESET
86 HSTX
29 SYSRST
21UNI SO
20 UNI SI
22 UNI CKIO
36
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| 110 | |
76 | 111 | |
LAMP ON (ILL ON) 108
ACC IN 64 
ILL IN 57 
MD MECHANISM CONTROLLER
IC501 (2/2)
60 |
61
MDMON 10
30 RESET
49 UNISI 
48 UNICKIO
50UNISO
46LINKOFF
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| STB |
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| I | (Page 24) |
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| CNP500 (2/2) | |
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| (POWER CONNECTOR) | |
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| D804 |
| 6 |
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| ANT REM |
+5V | +5V |
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| D803 |
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REGULATOR |
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| AMP REM | ||
(TUNER CIRCUIT B+) |
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Q6 |
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| 6 | AMP+B |
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| BATT B+ |
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| 8 | ANT+B |
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| POWER AMP |
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| D3 |
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| REGULATOR |
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| (IC500) B+ |
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| FM B+ |
| IC800 |
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TUNER B+ |
| 11 | FM8V |
| VCC | 7 |
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| (FM CIRCUIT B+) |
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| AM B+ | 10 | AM8V |
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| (AM CIRCUIT B+) |
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| COM +8V | 9 | COM8V |
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| (AUDIO CIRCUIT B+) |
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| D802 |
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| BACKUP +5V | 5 | BU+B |
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| STB | MODE1 | MODE2 |
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| 4 | 3 | 2 |
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| LCD +10V |
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| +10V | F1 | 16 |
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| LCD DRIVER (IC801)/ |
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| REGULATOR |
| BATT |
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| Q903, 904 |
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REGULATOR |
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CONTROL SWITCH |
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Q906 |
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| ACCESSORY CHECK |
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| D913 |
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| ACC | ||
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| Q900 |
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| D500 |
| 14 |
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| ILL IN |
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| LOAD +12V |
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| LOADING MOTOR |
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| DRIVER (IC305) B+ |
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| +12V |
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| B+ SWITCH |
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| REGULATOR |
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| Q402, 403 |
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| Q254 |
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REGULATOR |
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CONTROL SWITCH |
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Q255 |
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| DRIVER +5V |
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| VCC |
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| MOTOR/COIL DRIVER |
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| (IC303) B+ |
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| +3.3V | +3.3V |
| DC/DC |
| B+ SWITCH |
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| REGULATOR |
| CONVERTER |
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| Q250, 251 |
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| IC401, Q401 |
| IC250 |
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– 27 –
– 28 – |