Philips PVD1075, Руководство по обслуживанию

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6.0 OVERALL BLOCK DIAGRAM
1.
Li-Polymer Battery W/ Protect Schematics
i. Rechargeable Li Polymer battery adopted
ii. Protect Schematics: Over Voltage, Over Current, Under Voltage
2. Adapter In W/ Over Voltage Protect
i. 9V/2A Adapter
ii. Over voltage protect schematics will cut-off DC power supply if higher than 15 V DC
adapter plug in.
3. Power Source Vin
i. VIN Power Source
1. Battery Source 6.7~ 8.4 V
2. DC- IN 9V
4. DC/DC 5V IC
i. Use PWM controller to produce 5V power.
5. DC/DC IC 3.3/1.45V
i. Use DC/DC step down IC to produce 3.3V/1.45V
ii. 3.3V Provide MPEG SOC , Tuner & VIDEO Decoder
iii. 1.45V Provide MEPG SOC
6. Charger
i. Li Battery charger IC, CC/CV Two cell (8.4V) charging IC
7. Battery Con
i. Connector 3 PIN Connector Battery 3200m A 7.4 V
8. MPEG SOC
i. The Digital Media Processor
9. EEPROM
i. EEPROM FOR SAVE MENU SETTING DATA
10. SE/BTL Audio Amplifier
i. SE(headphone amplifier), BTL(speaker amplifier)
ii. Audio Input Function
11. AUDIO DAC
i. To transfer I2S digital audio to Analog stereo audio.
12. SDRAM
i. High SPEED DATA
13. FLASH
i. Save System Firmware Code
14. AV-IN Jack
i. VIDOE WILL SHOW ON LCD Panel when the AV Cable Plug in
15. Headphone Jack
i. Stereo headphone Jack
16. Speaker CON
i. Connector 2W 4Ohm Speaker *2
17. MUTE schematics
i. MPEG SOC issue mute while no sound produced