Sony VAIO PCG-V505 Series Training Manual Download Page 26 | Manualshive

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2. PCG-V505 Series Disassembly

Modem

Remove the 2 screws (B1) as shown in Figure 2-18. Remove the 2 cloth tape pieces, unplug the modem from

the motherboard, and set the unit and cable aside. Note the routing path for the modem cable identiﬁed by the

silkscreen pattern on the board to proper route the cable during re-installation.

FIGURE 2-18 - MODEM REMOVAL

REMOVE CLOTH TAPE

REMOVE 2 SCREWS (B1)

CPU Heat Sink

Figure 2-19 illustrates the removal of the CPU heat sink. Remove the 4 screws (B8). Lift one side of the cloth

tape attached to the cooling fan and lift the heat sink out.

Important

: Whenever the heat sink is removed from the CPU,

always

remove the old heat transfer pad and

replace with a new one (PN466878501).

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Summary of Contents for VAIO PCG-V505 Series

Page 1: ...VAIO Notebook PCG V505 Series Troubleshooting and Disassembly Course PC 03A Training Manual ...

Page 2: ...ter 2 PCG V505 Series Disassembly 11 Preparation 11 Keeping Track of the Screws 11 The Workbench Area 11 ESD Protection 11 Bottom Cover and Palm Rest Disassembly 11 Bottom Cover 11 Hard Drive 12 Keyboard 14 Front Screw Cover and Retaining Screw 15 Palm Rest Removal 15 Peripheral Hardware Removal 17 Optical Disc Drive 17 Wireless LAN 18 LCD Panel 20 PC Card Slot and Shield 22 Motherboard Removal 22...

Page 3: ...mation about the product is also a key to proper diagnostics and repair Topics that will be discussed are Troubleshooting No Power conditions Locating the cause of a Power On Self Test POST failure Operating System failures Proper identiﬁcation of major components such as motherboards and drives How to order the correct motherboard On line resources for technical assistance System recovery procedu...

Page 4: ...ware related In cases where hardware is the cause it is wise to visit the Sony ESI website to view the knowledge base The address is http service sel sony com and you will need a user ID and password to access the site If you work for a service company ask for the ID and password http www sony com pcsupport can also be accessed for the latest information regarding software and device drivers for e...

Page 5: ...r outputs a voltage that is excessively higher or lower than the speciﬁed voltage a protection circuit located on the motherboard will engage and prevent the onboard regulator circuits from applying power to the circuits It is therefore important to verify proper voltage levels generated by the AC adapter The following voltages were recorded from a properly operating AC adapter supplied with a PCG...

Page 6: ... AC adapter main battery and backup battery must be removed to allow the CMOS to reset Wait about 10 seconds before re applying any power If the voltage range of the AC adapter is within speciﬁcations an attempt should be made to release the UL latch to see if the unit powers up If the unit powers up the latch may have been triggered by a line surge Communicating with the customer regarding any re...

Page 7: ...ever the heat sink is removed from the CPU Motherboard Replacement of the motherboard should be attempted next Check the Sony ESI website for the correct board part number based on the model you are repairing This number will contain a B preﬁx instead of an A preﬁx like most Sony boards A motherboard with a B preﬁx will contain the necessary DMI information for that model NOTE Based on previous re...

Page 8: ...DISC DRIVE POST OK YES NO DISCONNECT HARD DISC DRIVE POST OK REPLACE CPU POST OK SWAP RAM MODULES TO TEST FOR DEFECTIVE SOCKET REPLACE MOTHERBOARD IF SOCKET DEFECTIVE FIGURE 1 3 POST FAILURE TROUBLESHOOTING FLOWCHART YES NO YES REPLACE DEFECTIVE RAM MODULE REPLACE OPTICAL DRIVE REPLACE HARD DISC DRIVE FINISHED NO REPLACE MOTHERBOARD ...

Page 9: ...upted RAM or device and or driver failures generally hang the OS loading process It is assumed that technicians utilizing this manual are properly trained in the use and maintenance of the Microsoft Windows XP platform The operating and diagnostics functions of this OS are quite sophisticated and a training manual many times the size of this one would need to be developed to cover all possible use...

Page 10: ...ode is successful access the Device Manager to locate any devices that may be the cause NOTE If there are problems with devices or drivers the computer will usually prompt you to enter the Safe Mode 3 Boot Logging Also accessed by pressing the F8 key this feature creates a detailed log of each driver and service that loads If there is a problem it will be indicated in the log The log is saved as a...

Page 11: ...nd there are no plans to release this to the general customer or service population Display Problems No Video If the computer powers up and the hard drive indicator shows activity but nothing appears on the display it is likely that the LCD display is malfunctioning Plugging and external monitor to check for display is a useful tool to further isolate the LCD panel If an external monitor cannot ge...

Page 12: ...ce received by the panel processing drivers the serial data is de multiplexed by shift registers to active several dozens of lines at the panel If one line is fully lit or missing the failure deﬁnitely lies within the LCD panel and it must be replaced Overall Distortion This can appear as a loss of a primary color loss of detail or pixilated distortion It is unusual for the pane itself to cause th...

Page 13: ...ube tray can also be used since there are never more than 8 different screw sizes during a disassembly You will have to keep numerical track since most ice cube trays have a maximum of 16 bins As an example A unit may have 8 different screw sizes but they are labeled as B1 B2 B3 B4 B6 B9 B18 and B22 Keep the order of the screws by installing B1 into the upper left bin and putting the rest into seq...

Page 14: ... will have to remove RELEASE BATTERY BY UNLOCKING AND SLIDING RELEASE TAB REMOVE 8 SCREWS B3 3 SCREWS B8 B3 B3 B3 B8 B8 FIGURE 2 1 BOTTOM COVER REMOVAL KEYBOARD RETAINING SCREW REMOVE ACCESS PANEL Hard Drive Referring to Figure 2 2 remove the 2 screws B16 securing the hard drive Earlier models may use a B3 screw size Unplug the interface cable by lifting straight up and remove the drive Remove the...

Page 15: ...13 2 PCG V505 Series Disassembly FIGURE 2 2 HARD DRIVE REMOVAL REMOVE 2 SCREWS B3 EARLIER MODELS B16 LATER MODELS UNPLUG HD CONNECTOR REMOVE 3 SCREWS B3 ...

Page 16: ...e with a ﬂat blade to avoid scratches and nicks to the palm rest cover Lift the keyboard from the rear and slide it back to release the front mounting tabs Be careful to lift the keyboard slightly since there is a ﬂexible cable connecting it to the motherboard Once the keyboard is loose lift it from the front to expose the FPC cable Unlock the cable by pushing down on the lock tab Pull the cable o...

Page 17: ...eferring to Figure 2 5 carefully to avoid tearing the FPC cable remove the cloth tape located over the FPC cable on the lower right side of the opening Unplug the 3 FPC cables and 2 harness connectors as shown CAUTION The speaker wire connector located at the upper right corner must be lifted straight up Remove 1 screw B2 and 2 screws B3 REMOVE 2 SCREWS B3 REMOVE 1 SCREW B2 REMOVE CLOTH TAPE UNPLU...

Page 18: ... press on the inside walls of the battery compartment to release the retaining latches Once the latches release do not attempt to lift the palm rest assembly completely off Set the unit on the workbench and continue to the next step FIGURE 2 6 PALMREST REMOVAL step 2 USE MIDDLE FINGERS TO PRESS OUTWARD AND RELEASE LATCHES ...

Page 19: ...ARD RELEASE KNOB WHILE LIFTING TO PREVENT BREKAGE OF THE KNOB ONCE THE PALMREST HAS BEEN LIFTED SLIGHTLY PULL IT TOWARDS YOU TO RELEASE THE CLAWS ON THE FRONT FIGURE 2 7 PALMREST REMOVAL step 3 Peripheral Hardware Removal Optical Disc Drive The optical disc drive is secured by 2 screws that were removed during the bottom cover disassembly It is only held in place by its interface connector to the ...

Page 20: ...nly have 4 pieces of cloth tape It depends on what type of wireless LAN assembly is used Step 2 Spread the locking tabs as shown in Figure 2 10 It is the same procedure as removing memory modules Unplug the two antenna cables noting the location of the gray and black cables Step 3 Undress the cables from the motherboard and fan Note the slots in the lower cabinet and markings on the motherboard in...

Page 21: ...HERBOARD IS TO BE REPACED REMOVE TAPE COMPLETELY NOTE SOME UNITS MAY ONLY HAVE 4 PIECES OF TAPE DEPENDING ON WIRELESS LAN DESIGN FIGURE 2 9 WIRLELESS LAN REMOVAL step 1 REMOVE COPPER TAPE SPREAD LOCKING TABS UNPLUG ANTENNA CONNECTORS FIGURE 2 10 WIRELESS LAN REMOVAL step 2 ...

Page 22: ...G OF LAN AND LCD CABLES LCD Panel Step 1 Unplug the LCD harness from the motherboard as shown in Figure 2 12 Pull the cable out from the retaining clips and dress aside REMOVE LCD HARNESS FROM RETAINERS AND UNPLUG CONNECTOR FIGURE 2 12 LCD PANEL REMOVAL step 1 ...

Page 23: ... the LCD harness and then the metal bracket REMOVE 2 SCREWS B3 REMOVE 2 SCREWS B3 ONCE SCREWS HAVE BEEN REMOVED LIFT OUT PLASTIC LCD CABLE BRACKET AND BOTTOM METAL BRACKET FIGURE 2 13 LCD PANEL REMOVAL step 2 Step 3 Referring to Figure 2 14 remove the 4 screws B13 securing the LCP panel hinges to the chassis Remove the LCD panel and set aside REMOVE 4 SCREWS B13 LIFT LCD PANEL OUT FIGURE 2 14 LCD ...

Page 24: ...D SHIELD OUT Motherboard Removal Removal From Chassis Referring to Figure 2 16 unplug the 3 FPC cables Note that the cable on the front right is covered by a piece of cloth tape Carefully remove the tape and set aside Remove the 4 screws B1 One of the screws is located on the side of the unit near the front right corner and is securing a metal tab Lift the RJ11 and RJ45 jacks from their slots The ...

Page 25: ...505 Series Disassembly FIGURE 2 16 MOTHER BOARD REMOVAL REMOVE 4 SCEWS B1 REMOVE 2 FLEX CABLES PEEL OFF CLOTH TAPE AND REMOVE FLEX CABLE PULL RJ45 AND RJ11 JACKS OUT FIGURE 2 17 MOTHER BOARD REMOVED FROM CHASSIS ...

Page 26: ...reen pattern on the board to proper route the cable during re installation FIGURE 2 18 MODEM REMOVAL REMOVE CLOTH TAPE REMOVE 2 SCREWS B1 CPU Heat Sink Figure 2 19 illustrates the removal of the CPU heat sink Remove the 4 screws B8 Lift one side of the cloth tape attached to the cooling fan and lift the heat sink out Important Whenever the heat sink is removed from the CPU always remove the old he...

Page 27: ...e the CPU by turning the lock screw counter clockwise as shown in Figure 2 20 The CPU should slide backward slightly and is easily lifted out Be careful not to touch the pins of the CPU while it is out of its socket FIGURE 2 20 CPU REMOVAL TURN SCREW CCW DO NOT TOUCH CPU PINS WHEN REMOVED ALWAYS REPLACE HEAT TRANSFER PAD ...

Page 28: ...E 3 SCREWS B1 CHECK FOR HEAT TRANFER PAD FIGURE 2 21 POWER SUPPLY HEAT SINK AND BACKUP BATTERY REMOVAL UNPLUG AND REMOVE BACKUP BATTERY VIF 33 and CX192 Boards As shown in Figure 2 22 remove the VIF 33 board attached with 3 screws B1 The location of the connector on the opposite side of the board attaching it to the motherboard is shown Remove one screw B1 on the CX192 board and unplug it from the...

Page 29: ...the motherboard securing the fan Flip the motherboard over Remove one screw B1 and unplug the fan connector Lift the fan out and set aside This is illustrated in Figure 2 23 FIGURE 2 23 COOLING FAN REMOVAL REMOVE SCREW B1 REMOVE SPACER NUT 72 USE 4MM NUT DRIVER UNPLUG CONNECTOR AND REMOVE FAN ...

Page 30: ...1 and lift off the MBX bracket Remove one spacer nut 72 and screw B1 The CPU bracket is removed from the other side of the board REMOVE SPACER NUT 72 AND SCREW B1 CPU BRACKET REMOVE SCREW B1 MBX BRACKET CPU BRACKET IS REMOVED FROM OTHER SIDE OF MOTHER BOARD FIGURE 2 24 MBX AND CPU BRACKET REMOVAL ...

Page 31: ...AND FINISH WITH BOTTOM Replacing the LCD Panel If the LCD panel requires replacement it must be removed from its housing The following steps illustrate this procedure Step 1 Remove the rubber screw covers at each corner as shown in Figure 2 25 Remove the 4 screws B15 Unsnap the bezel retainers by lifting up the inside edges of the bezel and pushing outward slightly Start with the top followed by t...

Page 32: ...B14 FIGURE 2 26 LCD PANEL REMOVAL step 2 Step 2 Referring to Figure 2 26 remove the 2 antenna cable cushions on the left side Remove the cloth tape as shown and unplug the connectors at each end of the circuit board Remove the 2 screws B14 located in the lower left corner securing the ground wire and hinge cover Remove 4 screws B15 at each corner ...

Page 33: ...FIGURE 2 27 LCD PANEL REMOVAL step 3 REMOVE HINGE COVER AND PULL ANTENNA CABLES FROM UNDER HINGE BRACKET HINGE COVER Step 4 Lift the tape off both ends of the LCD cable and unplug from the panel Use caution when unplugging this cable as the wires are very delicate The panel can now be swapped with a replacement unit FIGURE 2 28 LCD PANEL REMOVAL step 4 REMOVE TAPE FROM BOTH ENDS OF LVDS CABLE ...

Page 34: ...rks of Sony Electronics 2004 Sony Electornics Inc EMCSA A Service Company 1 Sony Drive Park Ridge New Jersey 07656 Reproduction in whole or part without written permission is prohibited All rights reserved PDP010304 3 18 04 ...

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