Philips-DVDR-7300-H-Service-Manual电路原理图.pdf
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1、Published by KC-TE 0636 AV Systems Printed in the Netherlands Subject to modication EN 3139 785 31532DVDR5350H/02/05/19HDD & DVD RecorderCLASS 1LASER PRODUCTContents Page1 Technical Specications and ConnectionFacilities 22 Safety Information, General Notes & Lead Free Requirements 53 Directions for
2、Use 74 Mechanical Instructions 105 Firmware Upgrading & Diagnostic Software 146 Block Diagrams,Waveforms, Wiring Diagram 117Overall block diagram 117Wiring diagram 118Waveforms of Analog Board 119Waveforms of Digital Board 120Waveforms of Front Board 121Waveforms of HDMI Board 121Test Points Overvie
3、w for Analog Board 122Test Points Overview for Display/Front Connector Board 123Test Points Overview for Digital Board 124Test Points Overview for HDMI Board 125Contents Page7 Circuit Diagrams and PWB Layout 126Analog Circuit Diagrams 126Analog Layout Diagrams 136Front Display/Connector Circuit Diag
4、rams 138Front Display/Connector Layout Diagrams 140Front Standby Circuit & Layout Diagrams 141Front Tray LED Left/Right Circuit & Layout Diagrams 142Digital Circuit Diagrams 143Digital Layout Diagrams 154HDMI Circuit Diagrams 156HDMI Layout Diagrams 1608 Alignments & Test Procedures 1639 Circuit and
5、 IC description 164Circuit Description 164IC Description 17210 Exploded view & Service parts list 188Exploded view 188Service parts list 19211 Revision list 194 Copyright 2005 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.All rights reserved. No part of this publication may be reprodu
6、ced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.Version 1.2DVDR7310H/75/97 & DVDR7300H/02/05/19/75/97EN 2 3139 785 315321. Technical Specifi cations and Connection Facilities1. T
7、echnical Specifi cations and Connection Facilities1.1 PCB Locations1.2 Diversity MatrixDVDR5350H DVDR7300H DVDR7310HHDD capacity 160GB 250GB 250GBHDMI x x1.3 Read / Write SpeedType of Disc (Function) Disc Rotation SpeedRead Speed CD 7X CAV Read Speed DVD 4X CAV Write Speed DVD+R/+RW 2.4X ZCAVWrite S
8、peed DVD-R/-RW 2X 1.4 General:Mains voltage : 220V 240V Mains frequency : 50 HzPower consumption (record) : 40 WStandby Power Consumption : 4.5V / 9.5V / 1V / 10kVideo - CinchInput voltage : 1Vpp 3dB Input impedance : 75Video - YC (Hosiden)According to IEC 933-5Superimposed DC-level on pin 4 (load 1
9、00k)3.5V is detected as 16:9 aspect ratioInput voltage Y : 1Vpp 3dB Input impedance Y : 75Input voltage C : 300mVpp 3dBInput impedance C : 751.6.4 Out 1Component Video Cinch Y/Pb/Praccording EIO-770-I-A, EIA-770-2Audio - CinchOutput voltage : 2Vrms max.Output impedance : 10k1.6.5 Out 2Audio - CinchO
10、utput voltage : 2Vrms max.Output impedance : 10kVideo - CinchOutput voltage : 1Vpp 3dB Output impedance : 75Video - YC (Hosiden)According to IEC 933-5Superimposed DC-level on pin 4 (load 100k)3.5V is detected as 16:9 aspect ratioOutput voltage Y : 1Vpp 3dB Input impedance : 75Output voltage C : 300m
11、Vpp 3dBInput impedance : 751.7 Digital Inputs / Outputs 1.7.1 Digital OutputDigital Audio Coaxial / OpticalLCM : according IEC 60958MPEG 1, MPEG 2, AC3 : according IEC 61937DTS : according IEC 61937 + addendum1.7.2 HDMI OutputType A connector (19 pins)1.7.3 Digital Video Input (IEEE 1394)Implementat
12、ion Standard according:IEEE Std 1394-1995 IEC61883 - Part1IEC61883 - Part 2 SD-DVCR (02-01-1997)Specifi cation of consumer use digital VCRs using 6.3mm magnetic tape dec.1994Mechanical connection according to Annex of IEC 61883-1EN 4 3139 785 315321. Technical Specifi cations and Connection Faciliti
13、es1.7.4 G-Link (for IR-remote transmitting device)Output voltage : 5 0.5V (high level)0.4 0.3V (low level)Output impedance : 1501.8 Video PerformanceAll outputs loaded with 75SNR measurements over full bandwidth without weighting.1.8.1 SCART (RGB)SNR : 55dB on all outputBandwidth : 4.8MHz -3dB1.9 Au
14、dio Performance 1.9.1 Cinch Output RearOutput voltage 2 channel mode : 2Vrms 2dBChannel unbalance (1kHz) : 100dBCrosstalk 16Hz-20kHz : 87dBFrequency response 20Hz-20kHz : 0.5dBSignal to noise ratio (unweighted) : 85dBDynamic range 1kHz : 83dBDistortion and noise 1kHz : 83dBDistortion and noise 16Hz-
15、20kHz : 75dBIntermodulation distortion : 70dBMute : 95dB1.9.2 Scart AudioOutput voltage 2 channel mode : 1.6Vrms 2dBChannel unbalance (1kHz) : 85dBCrosstalk 16Hz-20kHz : 70dBFrequency response 20Hz-20kHz : 0.5dBSignal to noise ratio (unweighted) : 80dBDynamic range 1kHz : 75dBDistortion and noise 1k
16、Hz : 75dBDistortion and noise 16Hz-20kHz : 50dBIntermodulation distortion : 70dBMute : 80dB1.10 Dimensions and WeightHeight of feet : 5.5mmApparatus tray closed : WxDxH:435x335x76mmApparatus tray open : WxDxH:435x472x76mmWeight without packaging : 5kgWeight with packaging : 8kg1.11 Laser Output Powe
17、r & Wavelength1.11.1 DVDOutput power during reading : 0.8mWOutput power during writing : 20mWWavelength : 650nm1.11.2 CDOutput power : 0.3mWWavelength : 780nmEN 53139 785 31532 2.Safety Information, General Notes & Lead Free Requirements2.1 Safety Instructions2.1.1 General SafetySafety regulations r
18、equire that during a repair: Connect the unit to the mains via an isolation transformer. Replace safety components, indicated by the symbol ,only by components identical to the original ones. Anyother component substitution (other than original type) may increase risk of fi re or electrical shock ha
19、zard.Safety regulations require that after a repair, you must return the unit in its original condition. Pay, in particular, attention tothe following points: Route the wires/cables correctly, and fi x them with themounted cable clamps. Check the insulation of the mains lead for externaldamage. Chec
20、k the electrical DC resistance between the mains plug and the secondary side:1. Unplug the mains cord, and connect a wire betweenthe two pins of the mains plug.2. Set the mains switch to the on position (keep themains cord unplugged!).3. Measure the resistance value between the mains plug and the fr
21、ont panel, controls, and chassis bottom.4. Repair or correct unit when the resistancemeasurement is less than 1 M.5. Verify this, before you return the unit to the customer/user (ref. UL-standard no. 1492).6. Switch the unit off, and remove the wire between the two pins of the mains plug.2.1.2 Laser
22、 SafetyThis unit employs a laser. Only qualifi ed service personnel may remove the cover, or attempt to service this device (due to possible eye injury).Laser Device UnitType : Semiconductor laser GaAlAsWavelength : 650 nm (DVD): 780 nm (VCD/CD)Output Power : 20 mW(DVD+RW writing): 0.8 mW(DVD readin
23、g): 0.3 mW(VCD/CD reading)Beam divergence : 60 degreeCLASS 1LASER PRODUCTFigure 2-1Note: Use of controls or adjustments or performance of procedure other than those specifi ed herein, may result in hazardous radiation exposure. Avoid direct exposure to beam.2.2 Warnings2.2.1 General All ICs and many
24、 other semiconductors are susceptible to electrostatic discharges (ESD, ). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are at the same potential as the mass of the set by a wristband with resistance. Keep components and tools at this same potential
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