Philips-HTS-3271-Service-Manual(1) 电路图 维修手册.pdf
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1、TABLE OF CONTENTS Page Service Manual . Mechanical and Dismantling Instructions.3-1 . Software Upgrades .4-1 . Trouble Shooting Chart.5-1 . Wiring Diagram.6-1 . Electrical Diagrams and Print-layouts.7-1 . Set Mechanical Exploded view MP3.2/3.1/3.0 20 Mbps (peak 40 Mbps) ?20 Mbps ? Audio codec Video
2、codecBit rate PCM, Dolby Digital, MP3, ? MPEG 4 ASP10 Mbps max H.264/AVC HP4.1/4.0; MP3.2/3.1/3.0 20 Mbps (peak 40 Mbps) ?20 Mbps ? Audio codec Video codecBit rate PCM, DTS core, MPEG, MP3 MPEG 1, MPEG 2 20 Mbps (peak 40 Mbps) MPEG 1, MPEG 2 20 Mbps (peak 40 Mbps) ? ? ? Audio codec Video codecBit ra
3、te PCM, Dolby Digital, DTS core, MP3, ? DivX 3.11, DivX 4. x, DivX 5.x, DivX 6.x 10 Mbps max MPEG 1, MPEG 220 Mbps (peak 40 Mbps) MPEG 4 ASP10 Mbps max H.264/AVC HP4.1/4.0; MP3.2/3.1/3.0 20 Mbps (peak 40 Mbps) ?20 Mbps ? Audio codec Video codecBit rate PCM, Dolby Digital, MP3, ? DivX 3.11, DivX 4. x
4、, DivX 5.x, DivX 6.x 10 Mbps max MPEG 1, MPEG 220 Mbps (peak 40 Mbps) MPEG 4 ASP10 Mbps max ? Audio codec Video codecBit rate Dolby Digital, MPEG, MP3, AAC, ? MPEG 1, MPEG 2 20 Mbps (peak 40 Mbps) MPEG 4 ASP10 Mbps max H.264/AVC HP4.1/4.0; MP3.2/3.1/3.0 20 Mbps (peak 40 Mbps) 1-4 Main unit Power sup
5、ply: ? V, 50 Hz ? ? ? ? ? mm ? Subwoofer ? Impedance: 3 ohm ? ? mm ? Cable length: 3 m Speakers ? THD) Speaker impedance: 6 ohm ? range woofer ? ? Cable length: 4 m Remote control batteries ? Audio codec Video codec Bit rate AAC, ? RV30, RV40 20 Mbps (peak 40 Mbps) ? ? THD) ? dB ? ? Input sensitivit
6、y: AUX1, AUX2: 2 V Music iLink: 1 V Video Signal system: PAL / NTSC HDMI output: 480i/576i, 480p/576p, 720p, 1080i, 1080p, 1080p24 Audio S/PDIF Digital audio input: ? ? Sampling frequency: MP3: 32 kHz, 44.1 kHz, 48 kHz ? Constant bit rate: ? ? Radio Tuning range: ? MHz (50 kHz) ? 108 MHz (50/100 kHz
7、) ? ? ? USB ? Class support: USB Mass Storage Class (MSC) File system: FAT16, FAT32, NTFS Maximum memory support: AdvancedVersion Info. While it shows the dialog box, we can see some information like below: For example: Model:HTSxxxx/xx System SW:x.xx.xx Subsystem SW:xx-xx-xx-xx Ethernet MAC:xx:xx:x
8、x:xx:xx;xx EUI64:xxxxxxxxxxxxxxx Caution: The set must not be power off during upgrading, Otherwise the Main board will be damaged entirely. 5-1 Trouble shooting Chart VFD No display on Front Control Board VFD No display on Front Control Board Go Yes Refer to CN502 on Power Board No Fix the connecti
9、on HTS3271:XP8 on Front Control Board and XP8 on Main Board No Replace U4 on Main Board, or replace the Main Board No HTS3271:Check the CON607 ON Front Control Board pin 1 2 arrive the condition XP8 PIN1 PIN2 No Yes Yes Yes Correct connection No Yes Replace U135 or VFD Check every supply voltage on
10、Main Board whether normal or not. (XP8 PIN4:-24V, PIN5: 12V, PIN6: 3.3V) Check voltage -24V, +5V,+12V on Power Board at CN502 position and Front Control Board (HTS3271:XP8 PIN4:-24V PIN5:+12V PIN6:+5V) Check the power key(HTS3271: PAD607), open/closed key(HTS3271: PAD603), source key(HTS3271: PAD606
11、) on Touch Board whether work normally or not Check Front Control Board signals SCL,SDA (HTS3271:XP8 PIN1: SCL PIN2:SDA) Check whether bad solder exists on HTS3271:XP8 on Front Control Board and VFD135 of VFD, 5-2 Trouble shooting Chart Touch keys do not work Touch keys do not work Go No HTS3271: Fi
12、x the connection CON607 on Front Control Board and CON606 on Touch Board Yes Replace U4 on Main Board, or replace Main Board No Yes Replace Touch Board Check voltage +3.3V on Touch Board HTS3271:(U603 PIN27) and Font Board(CON607 PIN3) Check Front Control Board and Touch Board signals SCL(TOUCH Boar
13、d U603 PIN19),SDA(U603 PIN18) 5-3 Trouble shooting Chart Remote control does not work Remote control does not work Go No Replace the battery for remote control Yes Check the +3.3V net on Front Control Board HTS3271:XP8 No Yes Replace IR601 Check battery of remote control whether exhausted or not. Ch
14、eck power supply of IR601 on Front Control Board whether normal or not HTS3271:XP8 PIN9 3.3V 5-4 Trouble shooting Chart No audio output No audio output Go No Yes Yes Yes Replace Amplifier Board No Replace U4 on Main Board,or replace Main Board Yes Refer to CON502 on Power Board No Check voltage +32V
15、 whether normal or not at XP702 on Amplifier Board Check the 24pin FFC connection XP13 on Main Board and XP703 on Amplifier Board whether right or not between Main Board and Amplifier Board Check the control signal whether right or not at the U4 PIN6,PIN7,PIN36,on Main Board and the signal at the XP
16、13 PIN9 PIN10 PIN22 Check XP13 pin 14&16 3.3V on Main Board whether normal or not 5-5 Trouble shooting Chart No video output No video output Go Add L456, R619 on Main Board Yes No No Replace Main Board Check L456,R619 whether right on Main Board Check the video signal whether right at U7: PINF27 PIN
17、F28 PINE28 5-6 Trouble shooting Chart Cant read disc or cant open the disk door 、 Cant read disc or cant open the disk door Go Check XP7 on Main Board No Yes Fix 45pin 8pin and 4pin cable No Replace Loader Yes Check loader whether work normally or not Check 45pin 8pin and 4pin cable from Main Board
18、to Loader whether connect right or not 5-7 Trouble shooting Chart Tuner FM does not work Tuner FM does not work Go Yes Refer to Power Board CN502 No Check Main Board tuner power supply circuit. No Change the Tuner module No Yes Yes No Yes Replace Main Board Check Main Board U5 power supply circuit C
19、heck voltage +3.3V at Tuner module (TUN1 pin5) whether right or not Check Tuner module pin7,pin8,pin9,I2S output whether normal or not Check voltage at Q27 C:+5V on Main Board whether normal or not Check the U4 PIN25,PIN26, I2C output on Main Board whether normal or not 5-8 Trouble shooting Chart AU
20、X in does not work AUX in does not work Go No Refer to Power Board CN502 Yes Check AUX Input Board No Yes Replace U33 74HC4052 Check Main Board U4 No Yes Check Main Board U1 power supply and out circuit No Yes Check voltage at U27 PIN16:12V on Main Board whether normal or not Check Main Board U27 PI
21、N1,PIN5 PIN12 PIN14 signal input whether right or not Check voltage at U33 74HC4052 PIN16, +12V, on Main Board Whether normal or not Check U33 74HC4052 whether broken Or not 5-9 Trouble shooting Chart MP3 Link does not work MP3 Link does not work Go No Refer to Main Board XP6 Yes Check Main Board C3
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