Analog Board Original Version

Awarning This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins Safety. Note Do not disconnect the cables connecting the video board and the analog board. Note The Power Macintosh Performa 5000 series includes the original version and Rev. B. See Rev. B in the Basics chapter to identify the version you are servicing. Caution The analog video board assemblies of the two versions are not interchangeable. If you are servicing an...

White Balance

Note Perform the white balance adjustments after the monitor has been on for at least 10 minutes and the cutoff procedure has just been completed. 1 Note Verify that the display resolution is set to 640 x 480. Run Display Service Utility to display the Gray Bars test pattern. 2 Using a fine-tip plastic adjustment tool, adjust the red bias (VR304) and green bias (VR305) controls to neutralize the four darkest bars. 3 If the screen shows a predominant blue color, start by adjusting the green bias...

Test Reassemble and Label the Unit

54 Plug in the unit, start it up, and check the display. If it still exhibits a consistent color hue, and you have already replaced the internal RGB cable, shut down the unit and replace the analog board. (For detailed take-apart instructions, see the Take Apart chapter. unit onsite, reconnect the external cables. 57 Verify that the unit starts up correctly. 58 Apply the REA label (part number 922-2396) above the FCC ID number on the back of the unit. 59 If you have inspected and or replaced...

Power Supply Rev B

Before you begin, remove the following Awarning This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins Safety. Rev. A Power Supply (5200)D Rev. B Power SupplyD 661-0930 (w o thermistor at CN13)D (5200 5300 5400 5500) 661-0331 (w thermistor at CN13) 661-1117 O O o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o r o o o o o o o o o o Follow the...

Video

Screen is bright and 1 audio is present, but no video information 2 is visible Adjust contrast button on front bezel. Adjust brightness. Use Screen control panel. Perform video adjustments. Refer to Video in Replace analog video board assembly. Perform video adjustments. Refer to Video in Replace analog video board assembly. Video will not play or system hangs when attempting to run video in units with MPEG card If chip at location U12 on MPEG card displays number 341SO205, check all...

Inspect the Logic Board

4 Grasp the logic board handle and pull out the logic board. 5 Inspect the clock chip at location U1 0. If it is not printed with part number 343S1191 or 343S1121 (ignore any letters following the part number), replace the logic board. Go to step 13. 6 R nthe 5XXX 6XXX Tester 1.1 to inspect the Cache ROM DIMM. The Tester will identify a suspect Cache ROM DIMM. Do not rely on visual inspection to identify a faulty Cache ROM DIMM. Goto step 7 if you're replacing the Cache ROM DIMM, otherwise go...

Discharge the CRT

Awarning To lessen the chance of electrical shock, always discharge the CRT before working on it. Awarning Never discharge the CRT while wearing a grounding wriststrap. 40 Remove your grounding wriststrap. 41 Attach the clip of the CRT discharge tool to the unit's metal chassis. 42 Slide the discharge tool probe under the anode cap and touch the probe to the anode aperture. 44 Put your grounding wriststrap back on.

Hard Drive

Internal or external hard drive does not operate 1 Verify that all hard drive connections are secure. 2 Verify that external drive is properly terminated. 4 Replace internal IDE hard drive. 5 Replace chassis wiring harness. 6 Replace logic board. Retain customer's SIMMs. Internal hard drive runs continuously 1 Verify that system software is version 7.5 (or later). 4 Replace logic board. Retain customer's SIMMs. Hard drive not found Use Drive Setup 1.03 to attempt mounting the hard drive. when...

Front Panel Control Board

Before you begin, remove the drive and control bezel. Caution Review the ESD precautions in Bulletins Safety. Caution Be sure to grip the front panel in the area shown to avoid harming circuit tracings. 1 Using needle-nose pliers, grip the front edge of the front-panel control board. 2 Pull firmly and slide the front panel control board out far enough to reach the ribbon cable connector. 3 Disconnect the cable from the front-panel control board. Replacement Note Using a flat-blade screwdriver,...

Front Bezel

Before you begin, remove the following Awarning This product Front contains high voltage and a Bezel high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins Safety. Note See Rev. B topic of the Basics chapter to determine whether you are servicing The Rev. B and original versions of the front bezels are not interchangeable. 1 Note The speaker cable is the set of two gray, round cables wrapped around the ferrite bead. Disconnect the speaker cable and guide it down and...

Crt

Remove the analog video board assembly Remove the tilt swivel base Awarning This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins Safety. Warning Support the top of the CRT. The CRT is very heavy and may fall forward as you complete this procedure. 1 Remove the two screws securing the metal CRT frame to the chassis. Pry back the metal tab from the raised slot on each side of the chassis. Tilt the top of the CRT and frame...

TV Tuner Module

The TV Tuner, an optional module included with the Apple TV Video System, turns the computer into a television receiver. The TV Tuner requires the Video-In Card, which is also included with the Apple TV Video System. The TV Tuner receives incoming television signals from cable or antenna television inputs, and then sends the information to the Video-In Card, which converts the data for display on the screen. In the United States, only NTSC is supported, but PAL and SECAM are available...

Replace the Ethernet Card Fence

Perform steps 24-28 if an Apple Ethernet card is installed on the logic board whether or not you are replacing the logic board . Note on ordering and claims procedures Do not enter the part number for the card fence on the SRO. 24 Inspect the metal fence on the Ethernet card. 25 If the card fence hooks onto the logic board fence, go to step 29. 26 If the card fence does not hook onto the board fence and the card fence is riveted onto the card, replace the card. 27 If the card fence does not...

Power Supply Rev A

Before you begin, identify if you have a Rev. A or Rev. B power supply. Refer to the Parts Database or the next page to identify the board. If you are servicing a Rev. A board, continue with these procedures. Rev. B Power Supply 5200 5300 5400 5500 ooooooooo ooooooooo oooooooooooo oooooooooooo oooooooooooo oooooooooooo ooooooooooo -ooooooooooo o o O O o o Rev. B Power Supply 5200 5300 5400 5500 Note There are two Rev. A versions and one Rev. B version of the Power Supply. Rev. A 661-0331 with a...

Install System

Perform the following procedures for installing System 7.5.3 for Education Power Macintosh customers only, unless customers specifically request no installation. Note Give the Macintosh 5xxx, 6xxx System 7.5 v 2.0 Update Service CD to Performa customers so they can perform their own installation. 2 Insert the Macintosh 5xxx, 6xxx System 7.5 v 2.0 Update Service CD in the CD-ROM drive. 3 Restart the unit while holding down the C key. 4 Release the C key when you see the Welcome screen. Note You...

Replacement Caution

Macintosh Performa 5200 Back

Some hard drives have sharp edges near the cable connector that can rub and, therefore, damage the cable. Avoid rubbing the cable against the edge of the drive. Note Perform the following steps only if you are replacing the hard drive. Note Notice the placement of the carrier and screws before removing them. Retain the carrier and screws, and install them on the new hard drive. 5 Remove the carrier from the hard drive.