Philips-MCD-302-Service-Manual(1) 电路图 维修手册.pdf
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1、DVD Micro System TABLE OF CONTENTS 3141 785 34490 XL 0943 2008 Location of PC Boards . 1-1 Electronic Specification. 1-2 Measurement Setup . 1-3 Service Aids . 1-4 Items Of Safety Attention .1-5 Instruction On CD Playability .1-7 to 1-8 Software Version Check include 60%Tin 40% lead. To maintain sol
2、dering iron and its tin very well. Use the wire brush but not spray cleaners such as Freon to clean the soldering surface. Adopt the melting ways: a) The temperature of soldering horn range from 350 to 390. b) Heat up the parts pin, until soldering tin is molten. c) Use the desoldering pump to suck
3、out the molten soldering tin quickly. Note: Quickly operating can prevent superheating the electronic-plating copper. Adopt the following soldering ways. a) The temperature of soldering horn range from 350 to 390. b) Hold the soldering iron and welding rod pointed to the parts pin, until soldering t
4、in is molten. Then move the soldering horn quickly to the location that you want to solder. Note: Quickly operating can prevent superheating electronic-plating copper of printed circuit board. c) Check the welting zone carefully, then brush the unwanted soldering tin away with a wire brush. Unsolder
5、/Replace IC Notes: Do not touch the IC body directly with soldering iron. Pre-heating soldering iron at about 130 for some seconds avoid the damages caused by IC heated suddenly. For normal IC, the temperature of the solder horn is about 350, and can increase to 390 for some bigger IC. Use the filam
6、entous welding rod and solder which thickness is about 0.3mm to solder thin IC and add the solder as needed. Replace the IC carefully and solder it quickly. After unsoldering the IC, clean the basic board carefully to ensure the board is usable. Prevent the molten soldering tin dripping on the board
7、 which will engender a short circuit. Aim at the first terminal and fix it, then aim at other terminals for correctly inserting IC. You can solder quickly just like this. Before operating, please make sure the IC is unusable. Do not unsolder repeatedly. During soldering especially soldering a thin I
8、C with many pins, check the weld carefully. After replacing, check that there is not soldering leak, rosin joint, short circuit and so on. Unsolder: Use the soldering iron to melt the soldering tin. Before unsoldering IC, suck out the molten solder tin. Replace? Make sure all the IC pins are on thei
9、r correct location, then solder. Use a wire brush to clean the welting zone. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 2-1 Software Version
10、Check & Upgrade Upgrade software 1. Download the software from Philips support website Software version and date check Ver: MCD302/xx Vxxx Date: Mmm dd yyyy Time: hh:mm:ss 1, Power on the unit whithout loading the USB and Disc in it, then press the “811502” on remote control Upgrading Read USB 2. Lo
11、ad the CD Disc or USB device with software,Software upgrade procedure starts automatically Waiting a minute Software upgrade finish. Not power Check the Power Cord is connected Check whether the PowerBoard has provided voltage output Not sound Confirm that whether turn on the TVs volume Check if the
12、 Main Board has been provided voltage Dont display Check the files or folders in USB or other devices do not exceed the certain limit Not picture on HDMI connection Check if the HDMI cable is usable Replace a new HDMI cable Check the connect cable is OK or NOT Check the flat connect wire is OK or NO
13、T and Re-planted Check if the data wire which connected to the Main Board has been provided voltage Check the data wire which connected the Main Board, if has provided voltage Check if the Transistors have been provided voltage Check the Digital Output Board whether provide voltage Check if the CPU
14、IC has provided voltage Check if the VFD Board has been provided voltage Replace a new Power Board N Replace a new one N Replace a new one N Replace a new one N Replace the IC PT6311 /SC16311/CD16311 N N Replace the Main Board N Change to ues the new materials N Change to uesable one N Check if the
15、Main Board has provided voltage Replace a new one N Y Y Y Y Y Dont Loading Confirm that the Loader Mechanism has provided Voltage Check the Flat Loader cable is OK or NOT Check the flat connect wire is OK or NOT and Re-planted Check the Loader whether has provided Voltage Replace a new one N Replace
16、 a new one N Replace a new one N Y Y Y Y Y Y Y Y Y Y Malfunction Follow Check Chart 3-13-1 Disassembly Diagram 4-14-1 A. Remove the Top CoverB. Remove the Decoder Board B1 A1 A2 B2 D. Remove the Dusctproof CoverC. Remove Front Cabinet C1. Loose 3pcs screws(3 x 10 FA) D1. Loose 4pcs screws(3 x 8 BA)
17、B1. Loose 5pcs screws(3 x 10 FA) B2. Loose 1pc screw(3 x 8 BA) A1. Loose 4pcs screws(3 x 8 KA) A2. Loose 1pc screw(3 x 10 FA) E1. Loose 4pcs screws(3 x 10 BA) G1. Loose 4pcs screws(3 x 10 PWA) H1. Loose 2pcs screws(2.6 x 10 PA) H2. Loose 6pcs screws(2.6 x 8 PA) E1 G1 H1 H2 C1 D1 remove this spone H.
18、Remove the Display BoardG. Remove the Loader Driver Mechanism E. Remove the Power Board 5-15-1 Block Diagram (PT2314) (TPA3123D2) AMP SPEAKERS SPEAKERS L OUT R OUT FM block FM _L/R MP3-LINK L/R AUX1 L/R DISC/USB L/R 9V_2314 M5V +27V 3.3V LDO 1.8V LDO M3.3V M1.8V MECHANISM DVD MOTOR driver (SI4704 &
19、4705) INPUT SELECT CD5954 (AMC1117) (AMC1117) &Audio Main chipset DRAM S-FLASH (1389L) EEPROM OPEN/CLOSE Driver Switch control +27V 9V_2314 12V_scart +5V processor manostat circuit manostat circuit MCU_5V ECO_POWER ECO_POWER FM ANT MUTE M5V M5VM5V CVBSDVDL YPr S-VIDEO Pb Earphone AMPPH LOUT & ROUT (
20、PT2309) M5V RF SCARTCVBS/R/G/B ONLY VER/12 M3.3V M1.8V +5V +27V +27V +5V SWITCHING POWER AC110-220 DVDR COAXIAL AUXRAUXL DVD? ? DM-06BXLX-L2 DVD? (?) RT-656n &EQ&VOL 24C16 AT25FS040/EN25B80 ESMT M12L64164A Switch control TP75S 12V_scart M3.3V M3.3V 9V 12V 1 2 3 4 SPK-4P 25W + 25W 4 OHM 4 OHM SM9435A
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