Motorola L903 Manuel d'utilisateur

787LE Service Manual 8/25/2003 TABLE OF CONTENTS PAGE 1. PRECAUTION AND NOTICES---------------------------------------------------------------

INPUT INTERFACEAGNDAdd VIA on AGNDevery 10mmR/G/BAHSYNC is important signalFirst Priority with Least VIATOP side ONLYAGNDAnalog Input (VGA)Place near

OUTPUT INTERFACETHE 6 PIN PCB MUSTCANCER DELETEThese are CRITICAL signalNO VIA is allowed3 2BLON pin : Reset HIGHPlace Q104 if inverter is Low activ

MICROCONTROLLEREEPROMWrite Protect (H:protect)* From 7414Backlite ONOSD ControlPanelInterfaceI/O KEY PORTORANGEKEY PADGREENSDASCL/STANDBYADE-SDAADE-SC

TO InverterTO InverterTO InverterTO InveterL805ET-20T801PQ-26201610-127-9532D804FCH30A15R801470K +C8131500UF/16VI802TLP721F4312R814 33K1%R822 200K 1%R

ON/OFFBrightness12V5VR915 10KD908 5.6VQ9062N7000D9209.1VQ9052N7000R93210K+C918220uF/25VR92339KQ9032SC945R917499 1%R918270 1%R933100K+C901 220uF/25VR91

787LE Service Manual -14- 8/25/2003 7. WORKING THEOREM A. DC-DC CONVERTER This brick convert is the 12V input voltage to 5V output for panel use

787LE Service Manual -15- 8/25/2003 power components in a typical backlight. The uC sets up the registers and enables the function. PWM 97 Table 1

787LE Service Manual -16- 8/25/2003 53 CSYNC Input Composite Sync Input - for Sync On Green 54 VSYNC Input Vertical Sync Input 55 HSYNC

787LE Service Manual -17- 8/25/2003 110 OBA0 Output Output Port A: Blue Data 0 111 DVDD33 Power Digital 3.3V VDD 112 DGND Power Digital Gr

787LE Service Manual -18- 8/25/2003 167 DGND Power Digital Ground 168 ORB7 Output Output Port B: Red Data 7 169 ORB6 Output Output Port B:

787LE Service Manual -1- 8/25/2003 1. PRECAUTION AND NOTICES 1.1. SAFETY PRECAUTIONS This monitor is manufactured and tested on a ground princi

787LE Service Manual -19- 8/25/2003 In 3.3V power system, the VDD and VDD3 are connected to 3.3V power, all output pins swing from 0~3.3V, HSYNC, V

LCD PANELP701P953P981MAIN PCBI/O CABLEP961P101 P105P104P103P802P701KEYPAD PCBTO:METAL FITTGPOWER PCBGNDP601P906P901787LE Service Manual -20- 8/25/200

787LE Service Manual -21- 8/25/2003 9. PCB Layout9.1. MAIN PCB TOP VIEW

787LE Service Manual -22- 8/25/2003 9.2. MAIN PCB BOTTOM VIEW

787LE Service Manual -23- 8/25/2003 9.3. CON PCB TOP VIEW

787LE Service Manual -24- 8/25/2003 9.4. CON PCB BOTTOM VIEW

787LE Service Manual -25- 8/25/2003 9.5. POWER PCB TOP VIEW

787LE Service Manual -26- 8/25/2003 9.6. POWER PCB BOTTOM VIEW

787LE Service Manual -27- 8/25/2003 10. TROUBLE SHOOTING FLOW CHART 10.1. NO POWER POWERSTARCheck5V O/PC826CheckP802 5,6 PINCheckP901,P906PANELCh

787LE Service Manual -28- 8/25/2003 10.2. MCU NO FUNCTION NYCHECKC239MCU 5VOK?CHECKQ108,Q107OK?CHECKI108 PIN7,PIN95V?NCHECKR190,C219OK?YCHECK12MHz

787LE Service Manual -2- 8/25/2003 2. SERVICE TOOL & EQUIPMENT REQUIRED 1. SIGNAL GEN. 2. MULTIMETER 3. OSCILLOSCOPE 4. SCREW DRIVER 5. I

787LE Service Manual -29- 8/25/2003 10.3. NO DISPLAY NYPower Key WorkOK?CheckKeypadCheckH V syncNCheckI105YCheck R.G.BDATANCHECKI/O cableYCheckX10

787LE Service Manual -30- 8/25/2003 10.4. LOSE COLOR YSome bitsLostCheckRP01~RP12NI101 or R-packsolderingYI106 poorsolderingNI107 poorsolderingP

787LE Service Manual -31- 8/25/2003 11. ADJUSTMENT 11.1. ADJUSTMENT CONDITIONS AND PRECAUTIONS 1. Approximately 30 minutes should be allowed fo

787LE Service Manual -32- 8/25/2003 F. Adjust Color Temperature: (1) EEPROM INIT (5 BLOCKS): Press “▼” key move cursor to EEPROM INIT, Press

787LE Service Manual -33- 9/24/2003 12. ELECTRICAL PARTS LIST When you place a parts order, be sure to indicate the following data on the order: l

787LE Service Manual -34- 9/24/2003 LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK C159 2346747496 CAP,CHIP 85'C CS 0

787LE Service Manual -35- 9/24/2003 LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK D119 RB 2364201896 DIODE,RECT(SMD) BAT54C

787LE Service Manual -36- 9/24/2003 LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK Q107 RC 2360100796 XISTOR,PNP R SMD MMBT3

787LE Service Manual -37- 9/24/2003 LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK R196 2253233296 RES,CHIP 1/10W RC 0603

787LE Service Manual -38- 9/24/2003 LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK C815 RA 2330005501 CAP,MINI ELE EC 220u/

787LE Service Manual -3- 8/25/2003 3.2. FACTORY SUPPORTING MODES There are totally 35 timings mode that can be saved in memory by FIFO architectu

787LE Service Manual -39- 9/24/2003 LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK D811 RB 2363601495 DIODE,SWITCH 1U5G 1A/6

787LE Service Manual -40- 9/24/2003 LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK Q803 RB 2361313691 XISTOR,NPN R KSC945C-G

787LE Service Manual -41- 9/24/2003 LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK R926 2233447995 RES,CBN 1/4 S RD 1/4WS

P951POWER PCB ASS'YFIG.4FIG.2FIG.1NOTE.1FIG.3KEYPAD PCB ASS'YP961FIG.4FIG.3FIG.2V9011F051F04X21F04X21F151F14X41F241F191F011F10X31F17X21F181F

787LE Service Manual -5- 9/24/2003 4.2. EXPLODED VIEW PARTS LIST Ref. No. Source Part No. DESCRIPTION SPECIFICATION Q‘TY REMARK 1F01 20242

787LE Service Manual -6- 8/25/2003 5. BLOCK DIAGRAM AC INPUT100V ~ 220VINVERTERI901P102Q101,Q104SW power supply12VI801DC-DCI8045VPANELDISPLAYVLCDQ

INTERNAL ADC REFERENCE RESISTORS ANDDECOUPLING CAPACITORS. PLACE THESECOMPONENTS CLOSE TO THEIR RESPECTIVEPINSPLACE CAPACITORS C111, C112,AND C113 ON

Copper plateMin : 10 x 10mmI103 RA:AMC7585-3.3ST RB:AIC1084-33CMAU 17",CMO 17",SANYO 18"USE L106 ONLYCPT 18" USE L105 ONLYDGNDP