Text preview for : Portégé 620CT - PA1125U-T9A, exploded view.pdf part of Toshiba Portege 620CT Portegè 620CT part list, exploded views, disassembly intructions, memory / interrupt maps
Back to : Portégé 620 | Home
Portégé 620CT
General Specifications
Model 620CT Model Number: Power: Portégé 620CT - PA1125U-T9A, limited production Input Voltage: 100-240V, self-adjusting 50/60 Hz Output Voltage: 15 V 2.0A Main Battery: Lithium Ion, 3.6V x 1250mAh x 9 batteries Intel Pentium 100Mhz Integrated Co-processor 16KB internal cache 8MB EDO expandable to 40 MB FDD: 3 1/2" 1.44MB (External bundled w/unit) HDD: 1.26GB, 13ms Integrated Pointing Device 10.4" TFT Color Active Matrix 800 x 600 pixels Interfaces: Serial, ECP Parallel, SVGA Monitor, PS/2 Mouse, PS/2 Keyboard, Port Replicator, Microphone/Headphone Jacks PC Card Slots: 2 Type II or 1 Type III Memory: 1 dedicated slot Plug and Play 3 years parts and labor
Processor:
Memory: Drive(s):
AccuPoint: Display:
Expansion:
Warranty:
Toshiba TRR
Page 1
4/00, Portégé
Portégé 620CT Exploded View
Toshiba TRR
Page 2
4/00, Portégé
Portégé 620CT Part Numbers
Ref. # Code Part # C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 PA1125UX PA1125U-T9A PA1125U-T9AB P000220310 P000210080 P000210090 P000204570 (reserved) P000197540 P000218890 PA2489UR P000220320 P000220330 P000220160 P000204630 P000204640 P000204650 P000203500 PA2438U P000182200 (reserved) P000204610 P000251740 P000204870 P000204880 P000204890 P000204900 P000204910 P000204920 P000196900 P000193180 P000193190 P000193300 P000204930 P000193340 P000193310 P000193320 P000204950 P000193240 P000193350 P000193260 P000193230 P000204860 P000202280 P000198350 P000205680 P000204940 (reserved) P000220340 P000223730 P000205010 P000205020 P000220360 P000220370 P000205050 P000205060 P000220380 P000204960 P000193380 P000194670 P000220350 P000223560 P000204990 P000205000 P000180400 (reserved) P000220390 P000204670 P000204680 Description 620CT/1.2 620CT/1.26 620CT/1.26 REMFG PCB FM4SY3 PCB FM3PS3 PCB FM3SD3 PCB FM3LE1 Kybd UNIT HDD UNIT(1.35GB) MAIN Batt. (4000mAh) COLOR LCD Mod. FL TUBE SET FL INVERTER NI-MH Batt. NI-MH Batt. MEMBRANE SWITCH FDD CABLE AC ADAPTER AC CORD SET BASE Assy INSULATOR Conn. COVER Assy PC CARD COVER FDD Conn. COVER Batt. LEVER Batt. KNOB LED LENS SWITCH BUTTON TILT ANGLE, LEFT TILT ANGLE, RIGHT Batt. STOPPER Mem. CARD COVER Assy KEY PLATE STOPPER SPRING SAFETY CONTACT SPRING SPRING, Batt. LOCK BLIND SEAL SPRING PIN WAVE WASHER TILT SCREW BASE SUB Assy EARTH SPRING BOTTOM CUSHION BRG EARTH SPRING EJECTOR EARTH SPRING PIR Comments Port 620CT with 1.26GB HDD Port 620CT/1.26 Port 620CT/1.26 (Remf.) Sys. Board, B36077801011 Pwr Sply Board, B36075941016 Sound Board, B36075671012 LED Board, B36075141010 UE0276P09 Tosh. MV1200, MK1301MAV, HDD2172B Lithium-Ion, 10.8V, 4000mAh w/recycle label Tosh. (DTI) 10.4 inch, VF0170P01 with cover & screws UA0392P04 Backup Batt., 6.0V, 110mAh RTC Batt., 3.6V, 30mAh AccuPoint control button contact UL0196P04 Input:100-240VAC,0.7A-0.4A,50-60HZ, Output:15VDC,2A
1 2 3 4 5-9 10 11 12 13 13A 14 15 16 17 18 19 20 21-29 30 N/S 30A 30B 30C 30D 30E 30F 30G 30H 30I 30J 30K 30L 30N 30O 30P 30Q 30R 30S 30T 31 31A 31B 31C 31D 32-39 40 40-1 40A 40B 40C 40D 40E 40F 40G 41 41B 41C 42 42-1 42A 42B 42C 43-49 50 50A 51
Attached to Base Assy, protects reset switch
Batt. Release Latch Batt. Lock
Mem. Mod. Socket Cover
COVER Assy COVER Assy CEE HINGE COVER, LEFT HINGE COVER, RIGHT BRAKE HINGE, LEFT SENSOR HARNESS HINGE BRACKET INSULATOR CORE HOLDER LCD HARNESS LCD Cable, UL0248P06 COVER SUB Assy Top Cover LED LABEL DISPERSIVE FILM LCD COVER Assy LCD COVER Assy CEE LATCH HOOK LATCH KNOB SPRING B LCD MASK Assy LCD CUSHION SPEAKER HOLDER Assy
Toshiba TRR
Page 3
4/00, Portégé
Portégé 620CT Part Numbers, (cont.)
Ref. # 52 53 54 55 56 57 57-1 58 58-1 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73-89 90 90A 90B 90C 90D 90E 91-99 100 101 102 102-1 103 104 105 106 107 108 109 109-1 110 111 112 OP OP OP OP OP OP N/S N/S N/S 50M 51-69 70 70A 71 72 73 74 75 76 77 78 79 80 Code Part # C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C815 C1G1 C1G1 C1G1 C1G1 C1G1 C1G1 C1G1 C1G1 C1G1 C1G1 C1G1 P000204690 P000204700 P000222340 P000204720 P000204730 P000220400 NP620T2 P000220410 NP620CT P000193590 P000204760 P000222180 P000204780 P000204790 P000204800 P000222170 P000204810 (reserved) P000204830 P000204840 P000193060 (reserved) P000205690 (reserved) P000220790 P000221810P000221820 P000221820 P000221830 P000221840 P000221850 (reserved) P000172160 P000163450 P000094030 P000229530 P000171690 P000171940 P000161040 P000172160 P000193250 P000188300 P000169570 P000229520 P000160830 P000206850 P000101750 NW2031U KTT610/8 NW2032U KTT610/16 NW2034U KTT610/32 P000220800-V510 P000220800-V520 P000220800-V530 P000247320 (Reserved) P000295350 P000266750 (Reserved) P000257830 P000258050 P000286280 P000273710 P000287280 P000295360 P000295370 (Reserved) P000286010 Description Kybd MASK Batt. Conn. COVER CABLE GUIDE HDD BRACKET Assy SPEAKER CUSHION PC NAME SEAL (C) PC NAME SEAL (C) PC NAME SEAL (M) PC NAME SEAL (M) LCD MASK SEAL SOUND SHIELD Assy BLIND FAN SEAL MIC HOLDER CARE LABEL RTC Batt. HOLDER TRANSFER Conn. PC SLOT COVER SPEAKER MICROPHONE STICK CAP SET SYSTEM SHIELD Assy FDD 3.5 Inch FDD COVER, UPPER FDD COVER, LOWER FDD Conn. FDD SHIELD FDD INSULATOR Citizen, ZA1215P02 PIR Comments Kybd Cover
Protective Cover for Speaker CBF CBF Rubber Seal Sound Board Cover Fan Hole Seal
8 Ohm, 0.5W
SCREW M2.5X6Z SCREW M3X4 SCREW,M2X8 SCREW M2X8L Grip Type Screw SCREW M2X6 SCREW M2X4 SCREW M2X4 SCREW M2.5X6Z WASHER SCREW SCREW M2X6 SCREW M2X6L Grip Type Screw SCREW M2.5X4 SCREW SCREW M2X5 NW, 8MB Mem. Mod. KINGSTON, 8MB Mem. NW, 16MB Mem. Mod. KINGSTON, 16MB Mem. NW, 32MB Mem. Mod. KINGSTON, 32MB Mem. SYSTEM BIOS DISK - V5.10 BIOS Disk Version V5.10, marking F36000368000 SYSTEM BIOS DISK - V5.20 CBA BIOS Disk Version V5.20, marking F36000368017 SYSTEM BIOS DISK - V5.30 CBA BIOS Disk Version V5.30 FIR COVER LCD MASK ASSEMBLY LCD CUSHION SPEAKER GUM LCD MASK SEAL FL HARNESS INSULATOR LCD EARTH SPRING LCD HARNESS HOLDER "LCD BRACKET, LEFT 133A" "LCD BRACKET, RIGHT 133A" BASE ASSEMBLY Display Mask
Toshiba TRR
Page 4
4/00, Portégé
Portégé 620CT Part Numbers, (cont.)
Ref. # Code Part # P000286060 P000286070 P000286080 P000264210 P000264220 P000264230 P000257770 P000258980 (Reserved) P000286210 P000286220 P000286230 P000295380 Not used P000273720 P000286260 P000286340 P000227770 P000215140 P000207940 P000239510 P000207950 P000233430 P000256890 P000278250 P000209920 P000261930 P000225470 P000261220 P000244070 P000254870 P000267150 P000295460 KTT-SO100/32 KTT-SO100/64 KTT-SO100/128 PA2450U PA2487URG PA2488U PA2717U PA2717UN PA2730U PA3024U-1PRP PA2731U Description BATTERY CASE ASSY POWER SWITCH ASSY MEMORY COVER ASSY BATTERY SPRING ASSY SWITCH LOCK LEVER PCMCIA LOCK LEVER EARTH SPRING BOTTOM CUSHION SHUTTER ASSEMBLY RTC BATTERY HOLDER HDD EJECTOR ASSEMBLY CD-ROM BRACKET EXPANSION CONN COVER BATTERY PCB STUD MODEM COVER SCREW M2.5X2.6B SCREW M2X3C SCREW M2X6Z GRIP SCREW M2.5X5Z GRIP SCREW M2X4Z SCREW M2.5X6Z TY SCREW M2.5X6BZ GRIP SCREW M2X5.5Z SCREW M2.5X4Z GRIP SCREW M2X4BN SCREW M2X10Z GRIP SCREW M2.5X6BN GRIP SCREW M2.5X8Z GRIP SCREW M3X4Z GRIP SCREW M2.5X20B TG SCREW M2.5X4Z 32MB SDRAM MEMORY 64MB SDRAM MEMORY 128MB SDRAM MEMORY UNIVERSAL AC ADAPTER BATTERY PACK BATTERY CHARGER ENHANCED PORT REP. III ENHANCED PORT REP. III "ADAPTER, ENH PORT REP III" ENHANCED PORT REP. IV PORT REPLICATOR PC Card Slot Cover RTC Battery Cover HDD Bracket PIR Comments
80A C1G1 80B C1G1 80C C1G1 80D C1G1 80E C1G1 80F C1G1 80G C1G1 80H C1G1 81-89 90 C1G1 91 C1G1 92 C1G1 93 C1G1 94 95 C1G1 96 C1G1 97 C1G1 S01 C1G1 S02 C1G1 S03 C1G1 S04 C1G1 S05 C1G1 S06 C1G1 S07 C1G1 S08 C1G1 S09 C1G1 S10 C1G1 S11 C1G1 S12 C1G1 S13 C1G1 S14 C1G1 S15 C1G1 S16 C1G1 OP01 C1G1 OP01-A C1G1 OP01-B C1G1 OP02 C1G1 (U,C,Z)" OP03 C1G1 OP04 C1G1 OP5 C1G1 OP5-A C1G1 OP6 C1G1 OP7 C1G1 OP8 C1G1 OP = Option N/S = Not Shown
Kingston 32MB SDRAM Memory Module Kingston 64MB SDRAM Memory Module Kingston 128MB SDRAM Memory Module "Input: 100-240VAC 0.95-0.55A 50/60Hz, Output: 15VDC 3A, "Lithium-Ion, 10.8V, 4,000mAh with Recycle Label" "(U,C,Z)" "U,C,Z" "U,C,Z (Wave Gray)" "U,C,Z" BIOS updates can be obtained for the Toshiba Web Site
Toshiba TRR
Page 5
4/00, Portégé
Portégé 620CT Disassembly Overview
The information offered in this section is an overview of the Maintenance Manual, Chapter 4, Replacement Procedures. If you have any questions or concerns regarding the proper procedure please refer to the Maintenance Manual through the Toshiba Service and Support Website before you proceed.
This section explains how to remove Field Replaceable Units (FRUs). It may not be necessary to remove all the FRUs in order to replace one. The chart is a guide to which FRUs need to be removed in order to remove others. The section numbers on the chart refer to the sections in the Maintenance Manual, Chapter 4. Always start by removing the battery pack, next, optional items such as the optional PC card and optional memory module, then follow the line on the chart to determine which FRU you must remove next in order to repair the one you think is causing the computer to operate improperly.
î
To remove the battery pack, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Close the display if it is open. 3. Turn the computer upside down. 4. Slide the battery lock to free the battery release latch, then slide the battery release latch to pop the battery pack out about one centimeter to the left. 5. A slight gap will open between the right end of the battery pack and the computer. Slip your fingers into the gap and pull the battery pack to the left until it stops (about 1 cm or half an inch). 6. Grasp the left end of the battery pack and lift it up to remove it.
Toshiba TRR
Page 6
4/00, Portégé
Portégé 620CT Disassembly Overview (cont.)
To install the battery pack, follow the steps below. WARNING: The battery is a lithium ion battery and can explode if not properly replaced, used, handled, or disposed of. Use only batteries recommended by Toshiba as replacements. NOTE: Check the battery terminals before you install the battery. If they are dirty, wipe them clean with a dry cloth. 1. Place the right end of the battery pack at the red line marked on an alignment guide. The battery pack should seat level with the computer. Gently press down on the center of the battery pack and at the same time push it to the right. When the battery is nearly seated, you will feel a slight resistance. Press the battery in carefully until you feel it click into place, then lock the battery lock.
2.
î
To remove the memory module from the computer, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack. 3. Turn the computer upside down. 4. Remove two M2x4 silver screws securing the memory module socket cover. 5. Slide your fingernail or a thin object under the cover and remove it. 6. Remove two M2x4 silver screws securing the module to a brace at the center of the module and set them aside. 7. Insert a thin object under the upper edge of the module and lift up to disengage the connector, then grasp the module by the edges and remove it.
Toshiba TRR
Page 7
4/00, Portégé
Portégé 620CT Disassembly Overview (cont.)
To install the memory module in the computer, follow the steps below. 1. Position the connector on the bottom of the module over the corresponding connector on the computer (align the holes on the side of the module over the screw holes on the brace). Place your fingers above the connector and press firmly but gently to assure a solid connection. The module should be seated level. 2. Secure the module to the brace with two M2x4 silver screws. 3. Lay the cover in place. Secure it with two M2x4 silver screws. If the memory module has a plastic tab, fold it down first then place the cover. 4. When you turn the computer on, it should automatically recognize the total memory capacity. Verify that the added memory is recognized. 5. Install the battery pack.
To remove the PC card from the computer, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack. 3. Open the cover to the PC card slot. 4. Pull out the eject button for the card you want to remove and press the button. The card will pop out slightly. 5. Grasp the PC card and pull it out.
To install the PC card in the computer, follow the steps below. 1. Insert the PC card. When the card is almost fully seated, you will feel some resistance. Press gently to assure a firm connection, but do not force the card into position. 2. When the card is fully seated, an eject button will pop out; the top button for the top connector and the bottom button for the bottom connector. 3. Pull the eject button slightly and bend it to lock the card. 4. Close the cover. 5. Install the battery pack.
Toshiba TRR
Page 8
4/00, Portégé
Portégé 620CT Disassembly Overview (cont.)
î
To remove the keyboard, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, and PC card. 3. Use a case separator to release 12 latches that secure the keyboard cover. Begin with the latches at the front. 4. Remove one M2x4 screw with washer in front of the keyboard. 5. Insert a thin object between the keyboard and the top cover to lift up the keyboard. Lift up slightly so the extensions at the back of the keyboard clear the corresponding holes on the top cover. Do not remove the keyboard cable. 6. Disconnect the AccuPoint cable from PJ2 and the keyboard cable from PJ7. 7. Lift out the keyboard.
í
è
Toshiba TRR
Page 9
4/00, Portégé
Portégé 620CT Disassembly Overview (cont.)
To remove the HDD, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, PC card, and keyboard. 3. Remove one M2x4 screw securing the HDD bracket. 4. Lift up on the plastic tab on the HDD bracket and lift up the HDD. 5. Carefully pull the HDD to disconnect it from the connector then remove it. 6. Remove four M3x4 flat-head screws securing the bracket to the HDD and remove the bracket.
í
í
To remove the top cover and display assembly, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, PC card, keyboard, and HDD. 3. Close the display and turn the computer upside down. 4. Remove the fan-hole seal. 5. Remove eight M2x8 silver screws from the bottom of the computer and two M2x6 silver screws from the battery seating area. These screws secure the top cover to the bottom cover. NOTE: If you remove the top cover, be sure to replace the fan hole seal with a new one. 6. Turn the computer back over and open the display panel. Remove the tape, then disconnect the following cables: LED from PJ9, display from PJ12, speaker from PJ18, sensor from PJ17, and microphone from PJ2. Stand the computer on end and release nine latches securing the top cover. Begin with the latches along the front edge as shown. Work around to the side latches, then remove the top cover and display assembly.
7.
8.
î
Toshiba TRR
Page 10
4/00, Portégé
Portégé 620CT Disassembly Overview (cont.)
To remove the RTC and backup batteries, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, PC card, keyboard, top cover and display assembly. 3. Peel off the tape securing the backup battery cable. 4. Disconnect the RTC battery cable from PJ15 on the system board. 5. Slide the RTC battery and RTC battery holder free of the brackets holding it in place and remove the battery and battery holder. 6. Use a thin object to carefully work the RTC battery out of the holder. 7. Disconnect the backup battery cable from PJ21 on the power supply board and lift out the battery. Note that the cable is routed under the clear plastic protector.
To remove the membrane switch, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, PC card, keyboard, HDD, top cover and display assembly, RTC battery, and backup battery. 3. Remove the tape from the membrane switch cable. 4. Disconnect the cable from PJ3 on the sound board and lift off the membrane switch.
To remove the sound board, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, PC card, keyboard, HDD, top cover and display assembly, RTC battery, backup battery, and membrane switch. 3. Remove one M2x4 screw. 4. Remove the sound board cover. 5. Disconnect the sound board cable from PJ20. 6. Lift out the sound board.
Toshiba TRR
Page 11
4/00, Portégé
Portégé 620CT Disassembly Overview (cont.)
To remove the power supply board, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, PC card, keyboard, HDD, top cover and display assembly, RTC battery, backup battery, membrane switch, and sound board . 3. Lift out the sound board support. 4. Disconnect the power supply board from PJ14 on the system board. 5. Lift out the power supply board.
To remove the system board, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, PC card, top cover and display assembly, HDD, RTC battery, backup battery, membrane switch, sound board, and power supply board. 3. Remove five M2x6 screws. 4. Lift out the system board. 5. The system shield assembly will be unattached. Be sure to note its position. 6. Remove the switch button.
î
To remove the LED board and speaker, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, PC card, keyboard, HDD, and top cover and display assembly. 3. Remove two M2x4 screws. 4. Remove the LED board and speaker assembly. 5. Release four latches to remove the LED board. 6. Release one latch to remove the speaker. 7. Remove the protective rubber cover.
Toshiba TRR
Page 12
4/00, Portégé
Portégé 620CT Disassembly Overview (cont.)
To remove the display mask, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, and PC card. NOTE: You do not have to remove the top cover and display assembly to remove the display mask. 3. Remove two rubber seals from the display hinges to expose screws securing the display mask. Remove two M2.5x6 screws at the bottom corners of the display mask.
î
4.
NOTE: When you remove the screws, support the back of the display panel with your hand. 5. Slip your fingers between the top of the display cover and the display mask and pull out gently to release six latches. Start with the latches at the center. Continue around the plastic cover to release four latches on each side and five latches at the bottom.
6.
WARNING: If you have to turn on the power to check the FL inverter during disassembly, never touch the exposed areas that carry high-voltage. To remove the FL inverter board, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, PC card, and display mask. 3. Remove two M2x6 screws from the FL inverter board. Note the ground wire on the left screw. NOTE: When you remove the screws, support the back of the display with your hand. 4. Turn the board over and disconnect the FL inverter cable from CN1 and the FL cable from CN2.
Toshiba TRR
Page 13
4/00, Portégé
Portégé 620CT Disassembly Overview (cont.)
To remove the TFT color display module, follow the steps below. CAUTION: When you remove the FL unit, be careful that dust or other foreign matter does not contaminate the LCD panel. Any contamination can affect the performance of the unit. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. Remove the battery pack, memory module, PC card, display mask, and FL inverter board. Remove four M2x6 screws at each corner of the display module.
î
2. 3.
NOTE: When you remove the screws, support the back of the display with your hand. 4. 5. Rotate the display module partially out of the cover from left to right. Carefully disconnect the LCD cable from the display panel.
NOTE: When you secure the LCD cable, support the display panel with your hand.
CAUTION: When you remove the FL, be sure no dust or foreign matter contaminates the display panel. To remove the FL, follow the steps below. 1. Turn off the power to the computer. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, PC card, display mask, FL inverter board, and display module. 3. Place the display module face down and remove two M2x6 flat-head screws securing the FL unit cover. 4. Carefully slide the cover to the right, then lift up to remove the FL unit cover. 5. Remove the black tape. 6. Free the FL cable unit and remove it. Note how the FL cable is routed. 7. Remove the FL unit. 8. Remove the FL.
ê
è
Toshiba TRR Page 14 4/00, Portégé
Portégé 620CT Disassembly Overview (cont.)
To remove the microphone, follow the steps below. 1. Turn off the power to the 620CT. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2 Remove the battery pack, memory module, PC card, display mask, FL inverter board, and display module. 3. Pinch the microphone cover to free it from two latches, then remove the cover. 4. Remove the microphone. 5. Remove the protective rubber cover from the microphone.
To remove the display cable, follow the steps below. 1. Turn off the power to the 620CT. Disconnect the AC adapter, power cord, and all external cables connected to the computer. 2. Remove the battery pack, memory module, PC card, display mask, FL inverter board, display module, and microphone. 3. Remove four M2.5x5 screws to release the cover assembly from the display assembly. 4. Disconnect the LCD harness from the LCD flex cable and remove it from the unit.
Toshiba TRR
Page 15
4/00, Portégé
Portégé 620CT Interrupts / Memory Map
Interrupt Assignments
Interrupt -- Level NMI 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Assigned to: RAM Parity Error, I/O Channel Error Timer Keyboard PIC 2 for level 8 to 15 Secondary Communications (COM 2/4)* Primary Communications (COM 1/3)* PRT 2* / Sound system* FDC PRT 1* /Sound system* RTC sound system* sound system* Reserved PS/2 Mouse Math co-processor HDC Reserved
1
2
* These I/O assignments are controlled by system setup.
System Memory Map
Address range '00000000' to '0009FFFF' '000A0000' to '000BFFFF' '000C0000' to '000CFFFF' '000D0000' to '000DFFFF' '000E0000' to '000EFFFF' '000F0000' to '000FFFFF' '00100000' to '007FFFFF' '00800000' to '027FFFFF' '02800000' to '0282FFFF' '02830000' to '07FDFFFF' '07FE0000' to '07FEFFFFF' '07FF0000' to '07FFFFFF' 64 64 Space (Kbytes) 640 128 64 64 64 64 7,168 32,768 192 Use Conventional memory Video RAM Reserved Reserved VGA BIOS System BIOS ROM (shadow RAM) System working memory Optional working memory The rest of system working memory Memory expansion in expansion port System Management RAM System BIOS ROM (duplicated)
Toshiba TRR
Page 16
4/00, Portégé
Portégé 620CT Input/Ouput Port Assignments Port Map
Port address '000' to '01F' '020' to '03F' '040' to '05F' '060' to '06F' '070' '070' to '07F '080' to '09F '0A0' to '0BF '0C0' to '0DF' '0E0' to '0EF' '0F0' to '0F7' '100' to '1EF' '1F0' to '1FF' '200' to '207' '208' to '20F' '210' to'217' '218' to '21F' '202' to '20F' '210' to '217' '218' to '21F' '220' to '22F' '230' to '23F' '240' to '24F' '250' to '25F' '260' to '26F' '270' to '277' '278' to '27F' Device/function 82C37: DMA Controller 1 82C59: PIC 1 82C54: Timer KBC NMI Mask Register RTC DMA Page Register 82C59: PIC 2 82C37: DMA Controller 2 Special Register Math Coprocessor VGA HDC Not used Not used Not used Not used Not used Not used Not used Sound system* Sound system* Sound system* Sound system* Not used Not used Parallel PRT 2* Port address '280' to '2AF' '2A8' to '2AF' '2B0' to '2B7' '2B8' to '2BF' '2C0' to '2DF' '2E8' to '2EF' '2E0' to '2E7' '2E8' to '2EF' '2F0' to '2F7' '2F8' to '2FF' '320' to '31F '330' to '33F' '340' to '377' '378' to '37F' '380' to '387' '388' to '38B '38C' to '38F' '390' to '39F' '3A0' to '3AF '3B0' to '3BF' '3C0' to '3DF' '3E0' to '3E7' '3E8' to '3EF' '3F0' to '3F7' '3F8' to '3FF' '400' to '47F' '480' to '49F' Device/function Not used Not used Not used Not used Not used Not used Serial Port 4 (COM 4)* Not used Serial Port 2 (COM 2)* Not used Not used Not used Not used Parallel PRT 1* Not used Sound system (OPL3) Not used Not used Not used Parallel PRT 3* CGA, EGA, VGA Not used Serial Port 3(COM 3)* FDC, HDC Serial Port 1(COM 1)* Not used DMA Hi-Page Register
* These port addresses can be specified by System Setup.
Toshiba TRR
Page 17
4/00, Portégé