Macintosh Performa 5200CD Troubleshooting

Macintosh Performa 5200. Photo: All About Apple museum, Wikimedia Commons, CC BY-SA 3.0.

Fault-finding on the Macintosh Performa 5200CD and the rest of the Performa 5200 series (5210CD, 5215CD, 5220CD and the Power Macintosh 5200/75 LC) follows Apple's symptom charts in the Power Macintosh/Performa 5200 and 5300 Service Source. Apple lists cures "in the order of most likely solution"; try the first cure first, and refit the original module before moving to the next cure if a swap does not help (p. 51). The charts stop at module level: logic board, power supply, analogue/video board, CRT. The 5260 and 5280 have their own manual and are not covered here.

The analogue board and CRT carry lethal voltages, and the CRT holds its charge after the machine is unplugged. Discharge the tube before working near the anode or the analogue board; see CRT Discharge Procedure.

First checks

• Jitter, faint lines or a moving picture can come from nearby electrical equipment or fluorescent lights. Move the machine to another room before replacing anything. A misadjusted screen can look like an analogue board or CRT failure (p. 52).
• For a machine that will not start, Apple's first cure is a logic board reset: remove the power cord, I/O door and logic board, unplug the battery, wait 5 to 10 minutes, refit the battery, and refit the board at an upward angle to clear the EMI clips. This also clears PRAM (pp. 55, 220–223).
• Check the PRAM battery. It is a 4.5 V alkaline pack on a plug; Apple's test is to replace it below 3.0 V (p. 217).
• Reseat the SIMMs and any card in the processor-direct, communications or video-in slot.

System

System (pp. 53–58)

Symptom	Apple's cures, in order
Crashes or hangs intermittently	Check the system is 7.5 or later; check the software is compatible; if the clock chip at U10 is not 343S1191 or 343S1121, replace the logic board; if the ROM DIMM matches Apple's figure and has no sticker on the centre chip, replace the DIMM; reseat any Ethernet card; check there is enough memory
Does not start up	Reset the logic board; replace the power supply; check the power cord; replace the logic board
Starts from the rear power switch but not from the keyboard	Try a known-good keyboard; replace the analogue board
Restarts by itself after Shut Down	Try a known-good keyboard; replace the analogue board
Shuts down when Restart is chosen	Replace the analogue board
Flashing "?" with the PDS and communications slots empty	Check the hard drive with Disk First Aid; repair, or back up and reformat with Drive Setup 1.0.3; update the driver with Drive Setup 1.0.3; clean-install the system software
Flashing "?" on a version B logic board with a card in the PDS or communications slot	Check the system is 7.5 or later; if U6 has no picture of Texas, is 343S0138-a, and there is no wire at U27 on the underside, replace the logic board
Menu bar flashes or the machine beeps constantly	Check the front-panel buttons are not jammed; check "mute" is off in the Sound control panel; reseat the drive bezel and front-panel control board

A version B logic board has a "B" at the end of the serial number printed near the communications port. The U10, ROM DIMM and U6 checks are part of Apple's Repair Extension Program, set out on Macintosh Performa 5200.

Video

Video (pp. 61–67)

Symptom	Apple's cures, in order
Screen black, too dark or too bright; sound and drives work	Adjust the front-panel contrast and the brightness; check the yoke cable; perform the video adjustments; replace the analogue/video board; replace the power supply; replace the CRT
Screen bright with sound, but no picture	Perform the video adjustments; replace the analogue/video board
Single vertical or horizontal line	Replace the analogue/video board; replace the CRT
Colour tint, or colour cannot be adjusted	Check the video board is firmly on the CRT socket; check the cables to the analogue/video board; on a Rev. A analogue/video board replace the internal RGB cable; replace the analogue/video board and adjust; replace the CRT
Picture breaks into diagonal lines or rolls	Perform the geometry adjustments; replace the analogue/video board
Out of convergence	Some misconvergence is normal, especially at the edges; replace the analogue/video board
Black spots (burnt phosphor)	Replace the CRT
Jitter or flashing	Move other electrical equipment away and switch off fluorescent lights; try another room; replace the analogue/video board
Out of focus	Perform the focus adjustment; check luminance and perform cutoff and white balance; replace the analogue/video board
Raster the wrong size	Set height to 185 mm (7.3 in) and width to 240 mm (9.5 in) with the monitor adjustment cable and on-screen controls
Poor linearity	Replace the analogue/video board
Raster tilted, shifted, distorted or off-centre	Move metal objects away; perform the geometry adjustments; use the on-screen controls; if the centring range is not enough, change switch SW701; replace the analogue/video board
White areas with blotches of colour	Move the machine; degauss with a manual degaussing coil
No video or system hang with an MPEG card	If U12 on the MPEG card is not 341S0205, replace the card

Audio

Audio (pp. 59–60, 78–79)

Symptom	Apple's cures, in order
Distorted sound from both speakers	Replace the analogue/video board
Distorted sound from one speaker	Replace the speaker; replace the analogue/video board
Distortion with an MPEG card fitted	Fit a modified MPEG card, with a jumper from U5 pin 2 to D1 pin 1
No sound from the speakers	Check the sound source; check the speaker cable at P803 on the analogue board; reseat the drive bezel and front-panel control board
Crackling that changes with volume	Install Audio Volume Extension 1.1 or later; replace the logic board
Headphone jack does not work	Check the jack is seated; replace the front-panel control board; replace the chassis/wiring harness

Drives

Floppy, hard and CD-ROM drives (pp. 68–73)

Symptom	Apple's cures, in order
Floppy drive does not work, or runs continuously	Try a known-good disk; replace the floppy drive; replace the logic board
Disk will not eject, or no disk can be inserted	Push a straightened paper clip into the hole beside the slot; hold the mouse button down while switching on; replace the floppy drive
Hard drive does not work	Check the connections; check external SCSI termination; reseat the logic board; replace the IDE drive; replace the chassis/wiring harness; replace the logic board
Hard drive runs continuously	Check the system is 7.5 or later; replace the drive cable; replace the drive; replace the logic board
Hard drive not found when booted from CD	Mount it with Drive Setup 1.0.3
CD-ROM drive will not take a disc	Try a clean disc; replace the CD-ROM mechanism; replace the SCSI data cable
Cannot mount a known-good CD-ROM drive	Reseat the CD-ROM adapters; check the SCSI ID (set to 3 at the factory); replace the drive; replace the chassis/wiring harness
Eject button sticks	Replace the front bezel (922-1398 original version, 922-1857 Rev. B)

Peripherals and miscellaneous

Peripherals and miscellaneous (pp. 74–80)

Symptom	Apple's cures, in order
Cursor does not move, or the button does nothing	Restart; check the mouse connection; move the mouse to the rear ADB port without the keyboard; reseat the logic board; replace the logic board
Double-click does not open items	Remove extra System files; check mouse speed; unplug the battery for 20 seconds and restart; try the mouse without the keyboard; replace the logic board
No response from the keyboard	Check the system is 7.5 or later; check the ADB connection; replace the keyboard; reseat or replace the logic board
Clicking, chirping or thumping	Replace the analogue board; replace the logic board
Smoke or smell	Replace the analogue board; replace the power supply; replace the logic board
No video, no sound, no drive activity	Check the power cord is connected and the machine switched on; replace the power cord; replace the analogue board; replace the logic board
Sad Mac icon, black vertical lines and a screech	Replace the RAM SIMMs; replace the logic board
Sad Mac icon	Remove any disc from the CD-ROM drive; disconnect external SCSI devices; disconnect the internal drive and start from a floppy; replace the drive; replace the RAM SIMM; replace the logic board
Rattle at startup with the external video connector fitted	Fold the external video cable away from the fan blades
Internal modem stops a graphics or Ethernet card being recognised	Replace the modem; replace the card

Decode a Sad Mac code with Sad Mac Error Codes.

Voltages and adjustments

Apple's adjustments for the 5200 and 5300 are light meter setup, geometry, video and high voltage; there is no power-supply adjustment and no published rail tolerance. The high-voltage adjustment is (pp. 313–317):

1. Run the monitor for at least 10 minutes.
2. Run the Display Service Utility and display the crosshatch pattern.
3. Connect a digital voltmeter: red lead to the cathode side of D713 (Rev. A analogue board) or D703 (Rev. B), black lead to the metal chassis.
4. With a fine-tip plastic tool, set VR501 (Rev. A) or VR702 (Rev. B) so the meter reads 29.5 V DC ± 0.1 V. Both controls are inside the analogue board; tilt the Rev. B board back to reach VR702.

Apple calls for this adjustment whenever the CRT or the deflection board is replaced. The 29.5 V point is a high-voltage sense point, not a supply rail.

Apple rates the 5200 and 5300 supply at 125 W and 2.5 A maximum, against 240 W and 4.0 A for the 5260 and 5280, so supplies do not swap between the two families. Within the 5200 series there are three supplies, 661-0331 and 661-0930 (Rev. A) and 661-1117 (Rev. B), and Apple says they are not interchangeable (p. 140).

Other known problems

• Low End Mac recommends a 25-pin SCSI terminator on the SCSI port when no SCSI devices are attached, Open Transport 1.2 or later, and a serial printer on the modem port when no modem is used, to improve network stability.
• Open Transport 1.1 does not work on these machines; they need 1.1.1 (p. 7).
• Apple HD SC Setup from System 7.5.1 and earlier does not recognise newer IDE drives; use Drive Setup 1.0.3 or later.
• Ageing electrolytic capacitors in the power supply, on the analogue board and on the logic board. No capacitor list for this machine is published by Apple, Recap-a-Mac or MacDat; see Macintosh Performa 5200CD Capacitor Replacement Guide for inspecting the boards, and Capacitor Failure Symptoms.
• Battery leakage from the alkaline pack; neutralise with white vinegar. See Battery Explosion, Capacitor or Corrosion Damage.

Related pages

• Macintosh Performa 5200CD
• Macintosh Performa 5200
• Macintosh Performa 5200CD General Maintenance
• Macintosh Performa 5200CD Capacitor Replacement Guide
• CRT Discharge Procedure
• Sad Mac Error Codes