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Roadstar LCD7080DVBT, Service Manual

The Roadstar LCD7080DVBT is a sleek and modern television equipped with digital tuner capabilities. For troubleshooting and maintenance, you can easily access the Service Manual for this product by downloading it for free from manualshive.com. This manual provides all the necessary information to ensure your TV stays in top condition.

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Summary of Contents for LCD7080DVBT

Page 1: ......

Page 2: ...fication 2 2 Block Diagram 4 3 General Alignment Instruction 5 4 Troubleshooting 7 5 Printed Circuit Board 12 6 Explode View 13 7 IC Block Diagram and Lead Identification 29 8 Schematic Diagram 39 CON...

Page 3: ...KHz 0dB V 1 4 0 2 1 25 1 4 Signal to noise ratio Infinity Zero dB l R 0dB 80 80 Dynamic range 1KHz 60dB 0dB 85 85 Power Consumption DC 9V Standby W 0 0 Rating W 10 10 SPECIFICATION HEADPHONE mW 0 3 2...

Page 4: ...Vx1827 7 INCH LCD PANEL A 8430 T DC DC M 1206 P HIGH VOLTAGE OSC 4 2 7 6 H V TRAN BLOCK DIAGRAM LCD MAIN PART 656 D0 656 D7 656 D0 656 D7 CCIR0 CCIR7 3...

Page 5: ...GENERAL ALIGNMENT INSTRUCTION The Main PCB of Monitor Modification 1 Input voltage is 6 8V 16V input signal is test circuit BY 5418 2 Adjust VR1 to get good performance 4...

Page 6: ...the unit Power button defective Replace power source Defective triode U4 Charge the position of Positive and negative Replace power button Replace U4 LS2822 2 No Picture Defective U9 SDRAM Replace U11...

Page 7: ...PRINTED CIRCUIT BOARD Monitor HV PCB Top View Bottom View 6...

Page 8: ...PRINTED CIRCUIT BOARD Main PCB Top View 7...

Page 9: ...PRINTED CIRCUIT BOARD Main PCB Top View 8...

Page 10: ...EXPLODED VIEW 9...

Page 11: ...IC BLOCK DIAGRAM DESCRIPTION Vx1827 10...

Page 12: ...IC BLOCK DIAGRAM DESCRIPTION Vx1827 11...

Page 13: ...IC BLOCK DIAGRAM DESCRIPTION A8430EEK 12...

Page 14: ...IC BLOCK DIAGRAM DESCRIPTION8D02D S8232 13...

Page 15: ...IC BLOCK DIAGRAM DESCRIPTION8D02D 24C02 14...

Page 16: ...IC BLOCK DIAGRAM DESCRIPTION8D02D CS4334 15...

Page 17: ...SCHEMA TIC DIAGRAMS TFT POWER 16...

Page 18: ...SCHEMA TIC DIAGRAMS VX1827 17...

Page 19: ...SCHEMA TIC DIAGRAMS PANEL 18...

Page 20: ...SCHEMA TIC DIAGRAMS CHANGE 19...

Page 21: ...SCHEMA TIC DIAGRAMS POWER 20...

Page 22: ...SCHEMATIC DIAGRAMS CT212 21...

Page 23: ...SCHEMA TIC DIAGRAMS AV OUT 22...

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