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5 | 4 | 3 | 2 | 1 |
Front Karaoke board Circuit Diagram:
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| 5V |
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D |
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| )5200$,1%2$5' |
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| R316 | NC/33 | LED- |
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| R306 |
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| XS301 |
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| R303 | R304 | R305 |
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| 51K |
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| 8PIN/2.0mm/140mm |
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| 4.7K | 4.7K | 4.7K |
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| 1 | 1 | DV33 |
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IR | 2 | IR |
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| U301 |
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2 |
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| GRID[1:5] | LED1 | ||||||
3 | 5V |
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| DRIVER_LED_ET6202 |
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VCC | 3 | 4 |
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| 1 |
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| 28 |
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| GRID5 | 13 |
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GND | 4 |
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| OSC |
| GND |
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| GRID5 | |||||
5 | DATA |
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| DATA |
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| 2 |
| 27 | GRID1 |
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| GRID4 | 12 | ||||||
DATA | 5 |
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| DI/O |
| GRID1 |
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| GRID4 | |||||||||
6 | CS |
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| CLK | R3 | 0R |
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| 3 |
| 26 | GRID2 |
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| GRID3 | 11 | |||||
CS | 6 |
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| R307 |
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| R309 | CLK |
| GRID2 |
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| GRID3 | |||||||||||
7 | CLK |
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| CS | R1 | 0R |
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| 4 |
| 25 |
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| GRID2 | 10 | ||||||||
CLK | 7 |
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| R308 |
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| R310 | STB |
| GND | GRID3 |
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| GRID2 | ||||||||||
| 8 | 8 | POWER_K |
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| 5 | KEY1 |
| GRID3 | 24 |
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| GRID1 | 9 | GRID1 | |
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| 6 |
| 23 | GRID4 |
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| SEG8 | 8 | ||||
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| KEY2 |
| GRID4 |
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| SEG8 | |||||
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| 10K |
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| 1K |
| 7 |
| 22 |
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| SEG7 | 7 | |||
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| C300 |
| C301 | C302 |
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| VDD |
| GND | 5V |
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| SEG7 | |||||||
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| 10K |
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| SEG1 |
| 8 | SEG1/KS1 |
| VDD | 21 |
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| SEG6 | 6 | SEG6 | |||||
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| 1K |
| 9 |
| 20 | GRID5 |
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| SEG5 | 5 | ||||
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| 100pF/50V/NP0 |
| 100pF/50V/NP0 |
| 100pF/50V/NP0 |
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| SEG2 |
| SEG2/KS2 | SEG14/GRID5 |
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| SEG5 | ||||||
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| KEY1 | KEY2 | SEG3 |
| 10 | 19 |
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| SEG4 | 4 | |||||||
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| SEG3/KS3 | SEG13/GRID6 |
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| SEG4 |
| 11 | 18 |
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| SEG3 | 3 | ||||
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| SEG4/KS4 | SEG12/GRID7 |
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| CE300 |
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| SEG5 |
| 12 | 17 | R323 | NC/33 | LED+ | SEG2 | 2 | ||||
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| SEG5/KS5 | SEG10/KS10 | SEG2 | ||||||||||
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| C303 | + |
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| SEG6 |
| 13 | 16 |
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| SEG1 | 1 | ||||
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| SEG6/KS6 |
| SEG9/KS9 | SEG8 |
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| 0.1uF/50V/Y5V | 47uF/16V |
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| 14 | SEG7/KS7 |
| SEG8/KS8 | 15 |
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| LED_2501AHG1 | ||||
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| SEG[1:8] |
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| K301 |
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| K302 |
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| D301 |
| R312 |
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| open/close |
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| 1N4148 |
| 1K |
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| K303 |
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C |
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| D302 |
| R311 |
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| POWER_K |
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| power | POWER_K1 | |
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| NC/1N4148 | NC/1K |
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| R313 | NC/0 |
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| DV33 | 5V |
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| REM301 |
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| GND | 5 |
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| R315 | 100 |
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| GND |
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| R318 | NC/100 |
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| R314 | |||
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| VCC |
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| 0 | |
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| IR |
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| 1 |
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| IR |
| C306 | + CE301 |
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| IRM_12mm |
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| C315 | 1uF/50V/Y5V | NC/47uF |
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| 47pF/50V/NP0 |
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| power | Q1 | R317 | R319 | R321 | R322 | R323 | R316 | R313 |
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| DV33 |
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| Y | Y | Y | Y | Y | N | N | N |
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| R317 |
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| 1W |
| N | N | N | N | N | Y | Y | Y |
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| 5V | R319 |
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| Q1 |
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| NPN_3DG3904M | LED2 |
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| 4.7K |
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| CE302 |
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| 10uF/16V |
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B |
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| 1K |
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D
C
B
AA
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| 5 |
| 4 |
| 3 |
| 2 |
| 1 |
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