Philips-DVDR-3370-H-Service-Manual电路原理图.pdf
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1、Published by KC-TE 0549 AV Systems Printed in the Netherlands Subject to modication EN 3139 785 31500DVDR3350H/DVDR3360H/DVDR3370HDVD-Video RecorderCLASS 1LASER PRODUCTContents Page1 Technical Specications and ConnectionFacilities 22 Safety Information, General Notes & Lead Free Requirements 43 Dire
2、ctions for Use 64 Mechanical Instructions 95 Upgrade Software & Repair Chart 126 Block Diagrams,Waveforms, Wiring Diagram 23Overall block diagram 23Control block diagram 24Wiring diagram 25Waveforms of Analog Board 26Waveforms of Digital Board 27Test Point Overview for Analog Board 28Test Point Over
3、view for Digital Board 297 Circuit Diagram and PWB Layout 30Analog: Frontend Video (FV) 30Analog: Video In / Out (IOV) 31Analog: Audio In / Out (IOA) 32Analog: Power Supply (PS) 33Analog: Multi Sound Processing (MSP) 34Analog: Audio Converter (DAC_ADC) 35Analog: Digital In / Out 1 (DIGIO 1) 36Analog
4、: Control Unit (CU) 37Layout: Analog-Main Part (Top View) 38Layout: Analog-Main Part (Bottom View) 39Front: Front Panel - Display 40Contents PageFront: Front Panel - Audio/Video In 41Layout: Front Panel (Top Copper Pattern) 42Layout: Front Panel (Bottom Copper Pattern) 42Front: Standby 43Layout: Sta
5、ndby (Top View) 43Layout: Standby (Bottom View) 43Digital: Back-end Processor 44Digital: Memory 45Digital: IEEE 1394 Physical Layer 46Digital: Video Input Processor 47Digital: Interfaces 48Layout: Digital-Main Part (Top View) 49Layout: Digital-Main Part (Bottom View) 508 Circuit- and IC Description
6、51PSU Board 51Front Board 52Analog Board 52Digital Board 56Power Supply Unit 59IC Description 59Analog Board 59Digital Board 649 Exploded View & Spare Parts List 75Exploded View of the set 75Spare Parts List 76Copyright 2005 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.All rights res
7、erved. No part of this publication may be reproduced, 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 1.0DVDR3350H/37/55, DVDR3360H/75/96/97 & DVDR3370H/75/96/971. Technical S
8、pecifi cations and Connection Facilities1.1 PCB Locations1.2 Diversity MatrixDVDR3350H DVDR3360H DVDR3370HHDD Capacity80GB 160GB 250GB1.3 General:Power Supply : 127V /37: 110V - 240V /55: 220V - 240V /75/97Consumption : 25 W (typical)Standby power consumption : 3.5V is detected as 16:9 aspect ratioI
9、nput voltage Y : 1 Vpp 3dBInput impedance Y : 75 Input voltage C : burst 300 mVpp 3dBInput impedance C : 75 Video CinchInput voltage : 1 Vpp 3dBInput impedance : 75 Audio CinchInput voltage : 2.2 Vrms max.Input impedance : 10k1.5.2 Audio/Video Front Input ConnectorsAudioInput voltage : 2 Vrms max.In
10、put impedance : 10kVideo - CinchInput voltage : 1 Vpp 3dBInput impedance : 75 Video - YC (Hosiden)according IEC 933-5Superimposed DC-level on pin 4 (load 100 k):3.5V is detected as 16:9 aspect ratioInput voltage Y : 1 Vpp 3dBInput impedance Y : 75 Input voltage C : burst 300 mVpp 3dBInput impedance
11、C : 75 1.5.3 Out 1Component Video Cinch Y/Pb/Pr / Progressive Scanaccording EIO-770-1-A, EIA-770-2-AAudio - CinchOutput voltage : 2 Vrms maxOutput impedance : 48dBBandwidth : 4.2 MHz - 3dB1.7 Audio Performance CD1.7.1 Cinch Output RearOutput voltage 2 channel mode : 2Vrms 1dBChannel unbalance (1kHz)
12、 : 100dBCrosstalk 20Hz-20kHz : 87dBFrequency response 20Hz-20kHz : 0.2dB maxSignal to noise ratio (A-weighted) : 90dBDynamic range 1kHz : 83dBDistortion and noise 1kHz : 83dBDistortion and noise 20Hz-20kHz : 75dBIntermodulation distortion : 70dBMute : 95dBOutband attenuation: : 40dB above 30kHz1.8 D
13、igital Output1.8.1 CoaxialCDDA / LPCM : according IEC60958MPEG1, MPEG2, AC3 audio : according IEC61937DTS : according IEC61937amendment 11.9 Digital Video Input (IEEE 1394)1.9.1 Applicable StandardsImplementation according:IEEE Std 1394-1995IEC 61883 - Part 1IEC 61883 - Part 2 SD-DVCR (02-01-1997)Sp
14、ecifi cation of consumer use digital VCRs using 6.3 mmmagnetic tape - dec. 1994Mechanical connection according:Annex A of 61883-11.10 Dimensions and WeightHeight of feet : 5.5mmApparatus tray closed : WxDxH:435x285x65mmApparatus tray open : WxDxH:435x422x65mmWeight without packaging : app. 4 kg 0.5
15、kgWeight in packaging : app. 6.0 kg1.11 Laser Output Power & Wavelength1.11.1 DVDOutput power during reading : 1.0mWOutput power during writing : 30mWWavelength : 650nm1.11.2 CDOutput power : 1.0mWWavelength : 780nm1.12 Write SpeedType of Disc (Function) Disc Rotation SpeedRead Speed CD 7X CAV (25Hz
16、)Read Speed DVD 4X CAV (40Hz)Write Speed DVD+RW 2.4X ZCAVWrite Speed DVD+R 2.4X ZCAVEN 33139 785 31500 1.Technical Specifi cations and Connection Facilities2.1 Safety Instructions2.1.1 General SafetySafety regulations require that during a repair: Connect the unit to the mains via an isolation trans
17、former. 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 hazard.Safety regulations require that after a repair, you must return the unit in
18、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. Check the electrical DC resistance between the mains plug and the secondary side:1. U
19、nplug 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 front panel, controls, and chassis bottom.4. Repair or correct unit when the resist
20、ancemeasurement 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 SafetyThis unit employs a laser. Only qualifi ed service personnel may remove th
21、e 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 reading): 0.3 mW(VCD/CD reading)Beam divergence : 60 degreeCLASS 1LASER PRODUCTFigure 2
22、-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 other semiconductors are susceptible to electrostatic discharges (ESD, ). Carele
23、ss 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.Available ESD protection equipment: Complete kit ESD3 (small tablemat, wristband
24、, connection box, extension cable and earth cable) 4822 310 10671. Wristband tester 4822 344 13999. Be careful during measurements in the live voltage section. The primary side of the power supply, including the heatsink, carries live mains voltage when you connect the player to the mains (even when
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