Philips-DVDR-3440-H-Service-Manual 电路图 维修手册.pdf

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1、2.1 Safety Instructions 2.1.1 General Safety Safety regulations require 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. Any other component substitution (other th

2、an 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 its original condition. Pay, in particular, attention to the following points: Route the wires/cables correctly, and fi x them with the mounted cable c

3、lamps. Check the insulation of the mains lead for external damage. Check the electrical DC resistance between the mains plug and the secondary side: 1. Unplug the mains cord, and connect a wire between the two pins of the mains plug. 2. Set the mains switch to the on position (keep the mains cord un

4、plugged!). 3. Measure the resistance value between the mains plug and the front panel, controls, and chassis bottom. 4. Repair or correct unit when the resistance measurement 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

5、 unit off, and remove the wire between the two pins of the mains plug. 2.1.2 Laser Safety This 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 Unit Type : Semiconductor laser GaAlAs Wavelength

6、: 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 degree CLASS 1 LASER PRODUCT Figure 2-1 Note: Use of controls or adjustments or performance of procedure other than those specifi ed herein, may result in haza

7、rdous radiation exposure. Avoid direct exposure to beam. 2.2 Warnings 2.2.1 General All ICs and many 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

8、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, connection box, extension cable and earth cable) 4822 310 10671. Wristband tester 4822 344 13999. Be careful during

9、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 the player is off!). It is possible to touch copper tracks and/ or components in this unshielded primary area, when y

10、ou service the player. Service personnel must take precautions to prevent touching this area or components in this area. A lightning stroke and a stripe-marked printing on the printed wiring board, indicate the primary side of the power supply. Never replace modules, or components, while the unit is

11、 on. 2.2.2 Laser The use of optical instruments with this product, will increase eye hazard. Only qualifi ed service personnel may remove the cover or attempt to service this device, due to possible eye injury. Repair handling should take place as much as possible with a disc loaded inside the playe

12、r. Text below is placed inside the unit, on the laser cover shield: Figure 2-2 2. Safety Information, General Notes & Lead Free Requirements CAUTION VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM ADVARSEL SYNLIG OG USYNLIG LASERSTRLING VED BNING UNDG UDSTTELSE FOR STRLING ADV

13、ARSEL SYNLIG OG USYNLIG LASERSTRLING NR DEKSEL PNES UNNG EKSPONERING FOR STRLEN VARNING SYNLIG OCH OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD BETRAKTA EJ STRLEN VARO! AVATTAESSA OLET ALTTIINA NKYVLLE JA NKYMTTMLLE LASER STEILYLLE. L KATSO STEESEEN VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WE

14、NN ABDECKUNG GEFFNET NICHT DEM STRAHL AUSSETSEN DANGER VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM ATTENTION RAYONNEMENT LASER VISIBLE ET INVISIBLE EN CAS DOUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU RadioFans.CN 收音机爱 好者资料库 2.3 Lead Free Requirement Information abou

15、t Lead-free produced sets Philips CE is starting production of lead-free sets from 1.1.2005 onwards. INDENTIFICATION: Regardless of special logo (not always indicated) One must treat all sets from 1 Jan 2005 onwards, according next rules. Example S/N: Bottom line of typeplate gives a 14-digit S/N. D

16、igit 5&6 is the year, digit 7&8 is the week number, so in this case 1991 wk 18 So from 0501 onwards = from 1 Jan 2005 onwards Important note: In fact also products of year 2004 must be treated in this way as long as you avoid mixing solder-alloys (leaded/ lead-free). So best to always use SAC305 and

17、 the higher temperatures belong to this. Due to lead-free technology some rules have to be respected by the workshop during a repair: Use only lead-free solder alloy Philips SAC305 with order code 0622 149 00106. If lead-free solder-pate is required, please contact the manufacturer of your solder-eq

18、uipment. In general use of solder-paste within workshops should be avoided because paste is not easy to store and to handle. Use only adequate solder tools applicable for lead-free solder alloy. The solder tool must be able o To reach at least a solder-temperature of 400C, o To stabilize the adjuste

19、d temperature at the solder-tip o To exchange solder-tips for different applications. Adjust your solder tool so that a temperature around 360C 380C is reached and stabilized at the solder joint. Heating-time of the solder-joint should not exceed 4 sec. Avoid temperatures above 400C otherwise wear-o

20、ut of tips will rise drastically and fl ux-fl uid will be destroyed. To avoid wear-out of tips switch off un-used equipment, or reduce heat. Mix of lead-free solder alloy / parts with leaded solder alloy / parts is possible but PHILIPS recommends strongly to avoid mixed solder alloy types (leaded an

21、d lead-free). If one cannot avoid or does not know whether product is lead-free, clean carefully the solder-joint from old solder alloy and re-solder with new solder alloy (SAC305). Use only original spare-parts listed in the Service-Manuals. Not listed standard-material (commodities) has to be purc

22、hased at external companies. Special information for BGA-ICs: - always use the 12nc-recognizable soldering temperature profi le of the specifi c BGA (for de-soldering always use the lead-free temperature profi le, in case of doubt) - lead free BGA-ICs will be delivered in so-called dry- packaging (s

23、ealed pack including a silica gel pack) to protect the IC against moisture. After opening, dependent of MSL-level seen on indicator-label in the bag, the BGA-IC possibly still has to be baked dry. (MSL=Moisture Sensitivity Level). This will be communicated via AYS- website. Do not re-use BGAs at all

24、. For sets produced before 1.1.2005 (except products of 2004), containing leaded solder-alloy and components, all needed spare-parts will be available till the end of the service-period. For repair of such sets nothing changes. On our website www.atyourservice.ce.P you fi nd more information to: BGA

25、-de-/soldering (+ baking instructions) Heating-profi les of BGAs and other ICs used in Philips-sets You will fi nd this and more technical information within the “magazine”, chapter “workshop news”. For additional questions please contact your local repair-helpdesk. RadioFans.CN 收音机爱 好者资料库 1.Technic

26、al Specifications and Connection Facilities Front Board Analogue Board Digital Board PSU 1.1 Read / Write Speed Type of Disc(Function) Disc Rotation Speed Read Speed CD 7X CAV Read Speed DVD 4X CAV Write Speed DVD+R/RW 2.4X ZCAV Write Speed DVD-R/RW 2X 1.3 General: Mains voltage : 220V-240V Mains fr

27、equency : 50Hz Standby Power consumption : 3W 1.4 RF Tuner Test Equipment :Fluke 54200 TV Signal generator Test Stream:PAL BG Philips Standard test pattern 1.4.1.1 System: RadioFans.CN 收音机爱 好者资料库 PAL B/G, PAL D/K, SECAM L/L, PAL I 1.4.1.2 RF Loop Through Frequency range : 43MHz-860MHz Gain: (ANT IN-

28、ANT OUT) : -4dB 2dB 1.4.1.3 Receiver: PLL tuning with AFC for optimum reception Frequency range : 45.25MHz - 857MHz Sensitivity at 40dB S/N (video unweighted) : 40dBV at 75 (high end) 60dBV at 75 (low end) 1.4.1.5 Video Performance: Channel 25 / 503,25MHz, Test pattern: PAL BG PHILIPS standard test

29、pattern, RF Level 74dBV Measured on SCART 1 Frequency response : 0.1MHz - 4.00MHz 3dB Group delay (0.1MHz-4.4MHz) : 0 nsec 150 nsec 1.4.1.6 Audio Performance: Audio Performance Analogue HiFi: Frequency response at SCART 1 (L + R) output : 100Hz -12kHz / 0 3dB S/N Ratio (20Hz- 20KHz) unweighted Harmo

30、nic distortion (1kHz, 25kHz deviation) : 1.5% Audio Performance NICAM: Frequency response at SCART 1 (L + R) output : 40 Hz 15 kHz / 0 3dB S/N according to DIN 45405,7,1967 and PHILIPS standard test pattern video signal : 40dB Harmonic distortion (1kHz) : 1.5% 1.4.1.7 Tuning Automatic Search Tuning

31、scanning time without antenna : 3min. typical stop level (vision carrier) : 37dBV Maximum tuning error(drift) during operation : 100kHz Tuning Principle Automatic B, G, I, DK and L/L detection .Manual selection in “STORE” mode 1.5 Analogue Inputs / Outputs 1.5.1 SCART 1(Connected to TV) Pin Signals:

32、 1 - Audio-out R 1.8V RMS 2 - Audio-out R 3 - Audio-out L 1.8V RMS 4 - Audio GND 5 - Blue / Chroma GND 6 - Audio- in L 7 - Blue-out 0.7Vpp 0.1V into 75 W 8 - Function switch 4.5V / 9.5V / 12V = asp. Ratio 4:3 DVD 9 - Green GND 10 P50 control not use 11 Green out 0.7Vpp 0.1V into 75W (*) 12 - NC 13 -

33、 Red / Chroma GND 14 - Fast switch GND 15 - Red-out / Chroma-out 0.7Vpp 0.1V into 75W (*) 16 - Fast switch RGB / CVBS or Y out 1V / 10k Video Cinch Input voltage : 1Vpp 3dB Input impedance : 75 Video YC (Hosiden) According to IEC 933-5 Superimposed DC-level on pin 4(load 100k) 3.5V is detected as 16

34、:9 aspect ratio Input voltage Y : 1Vpp 3dB Input impedance Y : 75 Input voltage C : 300 mVpp 3dB Input impedance C : 75 1.6 Digital Inputs / Outputs 1.6.1 Digital Output Digital Audio Coaxial LCM : according IEC 60958 MPEG 1,MPEG2,AC3 : according IEC 61937 DTS : according IEC 61937+addendum 1.7.3 Di

35、gital Video Input(IEEE 1394) Implementation Standard according: IEEE Std 1394-1995 IEC61883 - Part1 IEC61883 - Part2 SD-DVCR (02-01-1997) Specification of consumer use digital VCRs using 6.3mm magnetic tape dec. 1994 Mechanical connection according to Annex of IEC 61883-1 1.8 Video Performance All o

36、utputs loaded with 75 SNR measurements over full bandwidth without weighting. 1.8.1 SCART (RGB) SNR : -65dB on all output Bandwidth : 4.8MHz 2dB 1.9 Audio Performance CD 1.9.1 Cinch Output Rear Output voltage 2 channel mode : 2Vrms 2dB Channel unbalance (1kHz) : 100dB Crosstalk 16Hz-20kHz : 87dB Fre

37、quency response 20Hz-20kHz : 0.5dB max Signal to noise ratio : 85dB Dynamic range 1kHz : 83dB Distortion and noise 1kHz : 83dB Distortion and noise 16Hz-20kHz : 75dB Intermodulation distortion : 70dB Mute : 95dB 1.9.2 Scart Audio Output voltage 2 channel mode : 1.6Vrms 2dB Channel unbalance (1kHz) :

38、 85dB Crosstalk 16Hz-20kHz : 70dB Frequency response 20Hz-20kHz : 0.5dB max Signal to noise ratio : 80dB Dynamic range 1kHz : 75dB Distortion and noise 1kHz : 75dB Distortion and noise 16Hz-20kHz : 50dB Intermodulation distortion : 70dB Mute : 80dB Height of feet : 5.5mm Apparatus(WxDxH) : 435 x 65

39、x 340 mm Weight without packaging : 4.3 kg Weight with packaging : 6.0kg 1.10 Laser Output Power & Wavelength 1.10.1 DVD Output power during reading : 0.8mW Output power during writing : 20mW Wavelength 650nm 1.10.2 CD Output power :0.3mW Wavelength :780nm 1.11 Supported disc type and media speed Di

40、sc Media Speeds DVD+R 1x - 16x DVD+RW 2.4x - 4x DVD -R 1x - 16x DVD -RW 2.4x - 4x DVD+R DL 2.4x 1.1. PSU Board 1.1.1. General PRIMARY B A C D G Dia=3.2+/-0.05 (4x) Keep 10 x10 area as base of metal plate for screws 170+/-0.2 Mains connector 95+/-0.15 No component, No copper track area 39+/-0.1 9+/-0

41、.1 30.5+/-0.15 4+/-0.1 This screw can be used as EMC Y-capacitor connection 16+/-0.1 12+/-0.1 3.5+/-0.1 110+/-0.1 16+/-0.1 The PSU board provides the following connection to the rest of the set: Connector A: Supply/Signal to Analog Board Pin no. Supply / Signal Remarks 1 12VSTBY 2 STBY control 2.5V

42、= supply for conn. B is off (Standby mode) 2.5V = supply for conn. D is on 4.0V = power is good 2.5V = supply for conn. C & G is on 0.5V = supply for conn. C & G is off 11 GND 12 5ND Connector C: not in use Connector D: Supply to Basic Engine Pin no. Supply 1 12VE 2 GND 3 GND 4 5VE Connector E: Supp

43、ly to HDD Pin no. Supply 1 12VH 2 GND 3 GND 4 5VH ! The Mains must be disconnected from the Set before attempting the procedure mentioned below: The PSU is designed with short-circuit protection that will shutdown the power supply. When this happen, the voltage stored in capacitor C1 and C2 will pre

44、vent the Power Supply to turn-on, therefore they must be discharged with a screwdriver with high electrical isolation handle before the PSU can function normally again. Note :During the process of discharging the capacitors ,spark can be observed which is typical of the high voltage stored in Capaci

45、tor C1 and C2. 1.2 Front Board (Panel Display + Key) 1.2.1 General This board consists of the following parts: Slave P Frontend (Audio & Video) VFD Heater voltage Generator 1.2.2 FIP Control Driver (IC 7104 : UPD16316GB) The core element of the Front Display + Key board is the slave P. It runs on a

46、5V supply and is responsible for the following functions: Interface with the Domino chip on the Digital Board Evaluation of the keyboard matrix within Front board Decoding the remote control commands from the infra-red receiver Activation and control of the display Timer Wake-up activation It runs o

47、n two clock frequencies namely: 5MHz for normal operation 32.768KHz for the real time clock 1.2.3 Interface to the Domino chip It communicates with the Domino Host on the Digital board via a 6-wire synchonous serial interface. The Host is always the master to generate the communication clock to the

48、slave P irrespective of the direction of data transfer. 1.2.4 Evaluation of the keyboard matrix A key matrix is used on the Front board. The FIP control driver does the key-scanning with FIP9 - FIP24 (pin 23-26 and 29-40) as output and KEY_A - KEY_C (pin 41-43) as input. Each key is assigned a key code based on the output and input ports, and the slave P will do the evaluation by getting the key codes. 1.2