Philips-MZ-1200-Service-Manual(1) 电路图 维修手册.pdf
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1、GB CLASS 1 LASER PRODUCT COMPACT DIGITAL AUDIO Service Manual Service ServiceService ServiceService MZ-1000/22 fr Reparaturen sind Original-Ersatzteile zu verwenden. I Le norme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambio i
2、dentici a quelli specificati. After servicing and before returning set to customer perform a leakage current measurement test from all exposed metal parts to earth ground to assure no shock hazard exist. The leakage current must not exceed 0.5mA. CLASS 1 LASER PRODUCT 3122 110 03420 GB Warning ! Inv
3、isible laser radiation when open. Avoid direct exposure to beam. SVarning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkopplad. Betrakta ej strlen. SFVaroitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen! DK Advarse !
4、 Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. 1-6 DISMANTLING INSTRUCTIONS (CENTRE UNIT) Dismantling of the Cladding 1) Remove 8 Plug Rubbers (pos 123, 124, 125) from both side of the Centre Unit (for MZ-1100 only) with a flat head screw dri
5、ver (see Figure 1). Figure 1 Dismantling of the Cover Orn Rear and Cladding Internal 1) Remove 5 screws D and 2 screws E (see Figure 5) to loosen the Cover Orn Rear (pos 119). 2) Remove 4 screws F (see Figure 6) to loosen the Cladding Internal Left (pos 117) and Cladding Internal Right (pos 118). 2-
6、12-1 Dismantling of the Control Board DISMANTLING INSTRUCTIONS (CENTRE UNIT) Dismantling of the Front Cover Assembly 1) Remove 2 screws B (see Figure 3 and Figure 6) and uncatch C1 (see Figure 3) with a small size screw driver by givivg a push in the direction as shown in Figure 4 to separate the Fr
7、ont Cover Assembly from the Centre Unit (see Service Position A for Centre Unit). 1) Remove 7 screws G (see Figure 7) to loosen the Control Board (pos 1003-A). 2) Remove 2 screws H (see Figure 7) to loosen the IR Eye Board (pos 1003-B). Figure 2 Figure 3Figure 4 Figure 5 Figure 6 Figure 7 2) Remove
8、8 screws A (see Figure 2) from both side of the Centre Unit to loosen the Cladding (pos 120). 2-22-2 1) Remove 4 screws J (see Figure 8) from both side of the Power Box to loosen the Cabinet Top Power Box (pos 229) and Cabinet Bottom Power Box (pos 230). Service position A Service position C Service
9、 position B DISMANTLING INSTRUCTIONS (CENTRE UNIT)DISMANTLING INSTRUCTIONS (POWER BOX) Dismantling of the Power Box Cabinet Figure 8 Figure 9 Figure 10 2) Uncatch C2 (see Figure 9) to separate the Cabinet Front Power Box (pos 227) and Cabinet Rear Power Box (pos 228) from the chassis. 3) Remove 8 sc
10、rews K (see Figure 10) to loosen the Chassis Top of the Power Box (see Service position A for Power Box). 2-32-3 Service position A Service position C Repair Hints 1) Remove 3 screws L (see Figure 11 and Figure 12) to loosen the Amplifier Board (pos 1102). 2) Remove 2 screws M (see Figure 12) to loo
11、sen the Interconnect Board (pos 1103). Service position B DISMANTLING INSTRUCTIONS (POWER BOX) Dismantling of the Amplifier Board and Supply Board and Interconnect Board 3) Remove 3 screws N (see Figure 11 and Figure 12) to loosen the Supply Board (pos 1101). DISMANTLING INSTRUCTIONS (POWER BOX) Fig
12、ure 11 Figure 12 1) WARNING Switching Mode Power Supply (SMPS) Board consists of high voltage filter capacitors (2203 or 2210). Safety measures must be taken by the repair technician during servicing: -When the supply is on, avoid touching the SMPS Board and the high voltage filter capacitors (2203
13、or 2210). -When the supply is off, make sure to discharge the high voltage filter capacitors (2203 or 2210) with a suitable value resistor before any servicing to prevent electric shock. 2) The flex cables are very fragile, care should be taken not to damage them during repair. After repair, be very
14、 sure that the flex cables are inserted properly into the flex sockets before encasing, otherwise faults may occurs. Use a insulation sheet to prevent any damaged or short-circuit of the boards. Capacitors 2203 or 2210 Various other Tests Activated withACTIONTEST SEEPROM FORMAT TEST Load default dat
15、a. Display shows NEW for 1 second. Caution! All presets from the customer will be lost! Disconnect mains cord LEAVE SERVICE TEST PROGRAM T 9 to Exit EEPROM TESTA test pattern will be sent to the EEPROM. PASS is displayed if the uProcessor read back the test pattern correctly, otherwise FAIL will be
16、displayed. MUTEDEMO TOGGLE Pressing this button will toggle between DEMO ON and DEMO OFF. The DEMO status will scroll once across the Display. MP3-CD Button pressed? Y N MP3 MODULE TEST STEP 1 2 3 4 5 6 DISPLAY MESSAGE - - BUS OK - - FOC OK - - BUS ER - - FOC ER ACTION Indicates the module used. Ver
17、sion of the MPEG software (nn = Version Number). Communication test between the Main uP and CD Module CD SLEDGE MOTOR is moved in. CD SLEDGE MOTOR is moved out. FOCUS SERVO Test. Press 9 to exit OKAYERROR MP3CD TI-Vnn TI BUS SLD I SLD O TI FOC Choose level by pressing S T Note : Disc should be avail
18、able on the tray before entering the Service Test Mode. Figure 1Figure 2Figure 3 Y N Y N N DIM Button pressed? DIM Button pressed? DIM Button pressed? DISPLAY TEST Display shows Figure 1 and switch all LEDs on (see Table 2 - Pattern 1) Display shows Figure 2 and switch alternate LEDs on (see Table 2
19、 - Pattern 2) LEDs SOURCE STANDBY / ECO POWER LCD BACKLIGHT Pattern 1 ON GREEN this pin should be tied low 26CL16CD10 NPC16.9344 MHz system clock output 27DATACD10 NPCserial data output (3-state) 28WCLKCD10 NPCword clock output (3-state) 29SCLKCD10 NPCserial bit clock output (3-state) 30EFCD10 NPCC2
20、 error flag output (3-state) 31TEST2GNDtest control input 2; this pin should be tied low 32KILLCD10 Mute controlkill output (programmable; open-drain) 33VSSD1GNDdigital ground 2 34V2/V3CD10 NPCversatile I/O: input versatile pin 2 or output versatile pin 3 (open-drain) 35WCLINPC CD10word clock input
21、(for data loopback to DAC) 36SDINPC CD10serial data input (for data loopback to DAC) 37SCLINPC CD10serial bit clock input (for data loopback to DAC) 38RESETnP CD10power-on reset input (active low) 39SDAP CD10microcontroller interface data I/O line (open-drain output) 40SCLP CD10microcontroller inter
22、face clock line input 41RABP CD10microcontroller interface R/W and load control line input (4-wire bus mode) 42SILDP CD10microcontroller interface R/W and load control line input (4-wire bus mode) 43STATUSCD10 servo interrupt request line/decoder status register output (open-drain) 44TEST3GNDtest co
23、ntrol input 3; this pin should be tied low 45RCK CD10subcode clock input 46SUBCD10 P-to-W subcode bits output (3-state) 47SFSYCD10 Psubcode frame sync output (3-state) 48SBSYCD10 NPCsubcode block sync output (3-state) 49CL11/4CD10 11.2896 MHz or 4.2336 MHz (for microcontroller) clock output 50VSSD2G
24、NDdigital ground 3 51DOBMCD10 bi-phase mark output (externally buffered; 3-state) 52VDDD1P+3,3Vdigital supply voltage 2 for periphery 53CFLGCD10 correction flag output (open-drain) 54RACD10 servo driverradial actuator output 55FOCD10 servo driverfocus actuator output 56SLCD10 servo driverslide contr
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