TCM-20DV/21DV/22DV/23DV
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM
MIC101
MIC
J101
MIC
(PLUG IN POWER)
HRP901
(REC/PB)
HE901
(ERASE)
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| VREF |
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| Q101 |
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| AGC |
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| CONTROL |
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| MIC AMP, REC/PB EQ AMP | Q104 |
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| IC101 (1/3) |
| PB EQ |
| REC B+ | |
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| SWITCH |
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S101 |
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| MIC IN |
| MIC |
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| PRE |
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| 28 |
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(REC/PB) |
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| AMP |
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| OUT |
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PB |
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| 2 |
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REC | S101 (4/6) |
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| EQ IN |
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| EQ |
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| NF |
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| 29 |
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| AMP |
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| PRE |
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| NF |
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| VREF |
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| 1 |
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S101 (1/6) |
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| ALC |
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| REC B+ |
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| CONT | ALC |
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| 5 |
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| Q103 |
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| REC EQ |
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| SWITCH |
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| REC OUT | REC |
| REC IN |
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| 4 |
| AMP |
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| POWER ON |
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| B+ |
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| CAPSTAN/REEL MOTOR DRIVE | ||||
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| REC TIME |
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| IC101 (3/3) | |||
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| DOUBLE | NORMAL |
| THP601 | ||||
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| POWER ON B+ |
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| VS |
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| 18 |
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S101 (6/6) |
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(REC/PB) |
| RV601 |
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| REC TIME |
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| PB |
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| TAPE SPEED | DOUBLE | NORMAL |
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| RV602 |
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| (NORMAL SPEED) |
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| REC | SPEED CONTROL |
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| THP602 | RV601 |
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| GVN VREF |
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| 19 |
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| RV603 |
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| TAPE SPEED |
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| (DOUBLE SPEED) |
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| GVN CONT |
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| 20 |
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| M901 |
| M |
| GVN OUT | MOTOR | VCC B+ |
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| (CAPSTAN/REEL) |
| 16 | DRIVER | ||||
05 |
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| • SIGNAL PATH |
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| : PLAY |
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| : RECORD |
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| S101 (2/6) |
| POWER AMP, VOR CONTROL,REGULATOR |
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| S101 (3/6) |
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| (REC/PB) |
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RV101 |
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| PB |
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| IC101 (2/3) |
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| (REC/PB) |
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| PB |
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VOL |
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| REC |
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| POW OUT 1 |
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| REC |
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| BUFFER |
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| POW IN |
| 12 |
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| POWER |
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| Q102 |
| 11 | POW OUT 2 |
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| SP901 |
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| AMP | 14 |
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| (SPEAKER) | |||
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| + |
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| VOR |
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| J102 | |
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| EAR | |||
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| DELAY |
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| POWER ON B+ | |||
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| 7 | VOX |
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| S104 |
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| PB B+ |
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| VOR |
| REC B+ |
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H | L | OFF |
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| D101 |
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| LED |
| BATT |
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| Q105 |
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| Q106 |
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| REC B+ |
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| DRIVE |
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| 24 |
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| REC/PB |
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| VOR OFF |
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| MONITOR LEVEL |
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| SWITCH |
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| SWITCHING |
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| Q112 |
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| PB B+ |
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| Q111 |
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| SWITCHING |
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| VOR ON |
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| R/P | PAUSE |
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| S105 |
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| SWITCH |
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| PAUSE . |
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| REC B+ | 23 | SW |
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| PAUSE |
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| OFF |
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| 22 |
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| REC/PB |
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| ON |
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| MUTE |
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| MUTE |
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| MUTE | 21 |
| SWITCH | REC B+ |
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| Q109, 110 |
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| PB B+ |
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| S101 (5/6) |
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| POWER ON B+ |
| DRY BATTERY | |
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| (REC/PB) |
| MIC |
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| SIZE “AA” |
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| PB B+ |
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| VCC |
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| (IEC DESIGNATION R6) | |
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| REC B+ |
| 26 | REGULATOR |
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| S102 | 2PCS. 3V |
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| (POWER) |
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| PB |
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| VCC |
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| CN101 |
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| RIPPLE | 15 |
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| FILTER |
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| DC IN 3V |
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| VREF | REC | 27 | VREF REFERENCE |
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| – | |
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| VOLTAGE |
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| BATTERY B+ |
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| GENERATOR |
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| REFERENCE VOLTAGE |
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| MUTE SWITCH |
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| Q107, 108 |
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– 9 – | – 10 – |
