CDX-M620/M670
4-5. BLOCK DIAGRAM — DISPLAY SECTION —
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| SUB SYSTEM CONTROL | |||
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| IC702 |
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| BUS SI |
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| 98 | UNI SI | SA CLK | 1 |
| UNI SO |
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| 97 | UNI SO | SA IN | 112 |
2 |
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BUS CLK |
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| 101 UNI CKI |
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CD | BUS ON |
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| 38 | BUS ON |
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BU CHECK |
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| 34 | BU IN |
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SECTION |
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(Page 34) | S RST | 6 |
| BUF | 7 | 81 | SYS RES |
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| IC701 |
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| LINK OFF |
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| 50 | LINK OFF |
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| SIRCS |
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| D70 |
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| IR |
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| 16 RECEIVE | 7 |
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| IC62 |
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| D908 |
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| IR |
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| 16 RECEIVE | 7 |
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| IC901 |
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| LCD DRIVER |
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| 85 | XTAL |
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| IC60 |
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(Page 35)
3
SA CLK | TUNER | SYSTEM CONTROL |
SA OUT | SECTION | |
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| IC501 (3/3) |
| AD ON |
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BU 5V | SW |
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| Q501 |
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| 80 | AD ON |
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| 79 | KEY ACK |
AEP,UK,E |
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J651 |
| 72 | RC IN1 |
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(REMOTE IN) |
| 48 | RC IN0 |
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| KEY IN | 46 KEY IN0 | |
| MATRIX | 47 KEY IN1 | |
INHCLKLED DATACEODIMMERSW1
97 99 100 98 86 85
86 EXTAL | BOOT 57 | |
X701 | LED SW2 47 | |
18.432MHz | ||
LED SW1 46 | ||
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106 | BOOT |
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116 | LED SW2 |
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115 | LED SW1 | (Page 34) |
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POWER
LCD 9V 
CONT. Q60,61
LCD60
DIMMER
CONTLROL 
Q62
97 99 100 98 INH CLK DATA CE1
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| LCD DRIVER | |
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| IC61 |
| CN902 | ||||
ILL ON 9V |
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| LCD 9V |
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TX (SO) |
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| RX 62 |
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| LCD SO/TX 60 |
66 | CEO |
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69 | INH | ILL ON 52 |
64 | CKO LCD | |
70CEI
71CE2
POWER
9V 
CONT. 
LCD9V
Q109,112
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| 12 RX |
| 1 |
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| 13 TX |
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| CD | CD ON |
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| 82 FLSWPWON |
| SECTION | MD ON | POWER |
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| REG |
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| DDC ON 57 |
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| CONT. |
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BATT | 1 | 3 | MT +B |
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| Q117,118 |
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IC652 |
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M601 |
| 2 |
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| REG | |
OPEN/CLOSE |
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| 9V | |
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| Q119 | ||
MOTOR |
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| 3 | MOTOR | 11 | 98 MOT+ |
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| 14 | DRIVE |
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| IC651 6 |
| 97 MOT– |
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| 16 |
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| 12 |
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| VREF | MT +B |
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| CONT. |
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| Q651,652 |
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| BEEP |
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| 40 FPCRTL | BEEP 15 |
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| DRIVE |
| BZ501 |
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| Q502 |
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| VOLTAGE CHECK | ||||||
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| IC102 |
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CD 6V |
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| REG |
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CD 5V |
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| Q114,115 |
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BATT |
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| REG |
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| BU 5V |
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| Q113,116 |
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RX (SI) |
FL SW |
I | I | 96 I DET |
3 DET 7 | DET | |
IC650 | Q650 |
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POWER
CONT. 
BATT
DC/DC CONV. Q101,102
| 97 98 99 100 |
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LCD1 | INH CE2 | CLK DATA | LCD DRIVER | |
SW2LED | DIMMER | |||
| IC1 | |||
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| 84 | 86 |
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LCD 9V | POWER |
| DIMMER | |
CONT. |
| CONTLROL | ||
| Q1,2 |
| Q3 | |
| SW1001 |
| OPEN SW |
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| (OPEN/CLOSE) | 100 |
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D903 |
| 99 | CLOSE SW |
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(DISC IN) |
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LED |
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DRIVE | SW1002 |
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Q901,902 | 101 | CENTER SW | SHIFT 37 | SHIFT | ||
(CENTER) | ||||||
| Q105 | |||||
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| 69 | FLASH W |
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| LSW60 |
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| OPEN | 61 | OPEN KEY |
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(DISPLAY BOARD) | 62 | NOSE SW |
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| S1 | 64 | DETACH SW |
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| DETACH |
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CONTROL
IC101
9 |
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VCC | ON/OFF |
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OUT1 7 | CD 6V | ||
DRIVE | |||
| Q103 |
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INA1 3 |
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2 RT | ON/OFF | 9V | |
OUT2 10 | DRIVE | ||
| Q106 |
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INA2 14 |
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