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Rewrite from 5260/5280 Service Source and Apple tech specs 112354. Fixed: not New World ROM; frame buffer on-board DRAM; PSU adjustment exists (R828, 110 V); 125 W figure is Apple's spec page, SS gives 240 W/4.0 A; RAM minimum conflict stated; photo of 5260/120; removed uncited handshake/9600 bps, Retrobrite and duplicate spec tables
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{{Infobox computer
{{Infobox computer
| name        = Macintosh Performa 5260CD
| name        = Macintosh Performa 5260CD
| image        = [[File:Macintosh_Performa_5200.jpg]]
| image        = [[File:PowerMacintosh_5260.jpg|260px|frameless]]
| caption      = Macintosh Performa 5260CD
| caption      = Macintosh Performa 5260/120, the same case as the Performa 5260CD. Photo: Stephen Edmonds, Wikimedia Commons, CC BY-SA 2.5
| manufacturer = Apple Computer, Inc.
| manufacturer = Apple Computer, Inc.
| type        = All-in-one Personal Computer
| type        = All-in-one desktop personal computer
| release date = April 22, 1996
| release_date = April 15, 1996 (Apple); April 22, 1996 (EveryMac)
| discontinued = February 1, 1997
| discontinued = February 1, 1997 (EveryMac)
| price        = US$1,900
| price        = US$1,900 (EveryMac)
| cpu          = PowerPC 603e @ 100 MHz
| cpu          = PowerPC 603e at 100 MHz
| memory      = 16 MB RAM minimum, expandable to 64 MB (Apple's figure)
| memory      = 8 or 16 MB, expandable to 64 MB
| storage      = 800 MB or 1.2 GB IDE hard drive, 4X CD-ROM
| rom          = 4 MB
| display      = 14" Shadow Mask CRT (640×480 at 16-bit color)
| storage      = 800 MB or 1.2 GB IDE hard drive; 4× CD-ROM; 1.4 MB SuperDrive (manual insert)
| sound        = 16-bit monophonic input, 16-bit stereo output at nominally 0.5 V RMS into 39 Ω; internal speakers deliver 16-bit stereo (Apple's figures)
| display      = Built-in 14-inch shadow-mask CRT; 640 × 480 at 16-bit
| dimensions  = 17.5" H × 16.0" W × 15.1" D (445 × 406 × 383 mm)
| sound        = 16-bit stereo output, 16-bit mono input
| weight      = 45 lbs (20.4 kg)
| dimensions  = 445 × 406 × 383 mm (17.5 × 16 × 15.1 in)
| os          = System 7.5.3 – Mac OS 9.1
| weight      = 45 lb (20.4 kg)
| predecessor  = [[Macintosh Performa 5200CD|Performa 5200CD]]
| os          = System 7.5.3 and later
| successor    = [[Macintosh Performa 5400CD|Performa 5400CD]]
| model        = M3457
| model        = M3457
}}
}}
The '''Macintosh Performa 5260CD''' is an all-in-one personal computer manufactured by Apple Computer, Inc., introduced on April 22, 1996.<ref>{{cite web |url=https://everymac.com/systems/apple/mac_performa/specs/mac_performa_5260cd.html |title=Apple Macintosh Performa 5260CD Specs |publisher=EveryMac.com |access-date=2026-02-10}}</ref> It features a 100 MHz PowerPC 603e processor in the same all-in-one chassis as its predecessor, the [[Macintosh Performa 5200CD|Performa 5200CD]].
The '''Macintosh Performa 5260CD''' is an all-in-one Macintosh with a 100 MHz PowerPC 603e and a built-in 14-inch monitor. Apple gives its introduction date as April 15, 1996, with System 7.5.3 as the original system software.<ref name="apple">Apple, [https://support.apple.com/en-us/112354 "Macintosh Performa 5260CD: Technical Specifications"].</ref> It is the Performa version of the [[Power Macintosh 5260|Power Macintosh 5260/100]], which Apple covers with the 5260/120 and 5280 in one service manual.<ref name="ss5260">Apple Computer, ''Service Source: Power Macintosh/Performa 5260, 5280 Series'' (1997), [[:File:Powermac.perf 5260.5280.pdf]]; see [[Power Macintosh/Performa 5260, 5280 Series Service Source]]. Page numbers are PDF pages.</ref> EveryMac gives April 22, 1996 for the introduction and February 1, 1997 for the discontinuation, a price of US$1,900 and model number M3457, and says it was sold worldwide with an 800 MB or 1.2 GB hard drive and 8 or 16 MB of RAM.<ref name="em">EveryMac, [https://everymac.com/systems/apple/mac_performa/specs/mac_performa_5260cd.html "Macintosh Performa 5260CD Specs"].</ref> The [[Macintosh Performa 5270CD|Performa 5270CD]] is the same machine for markets outside the US.


The Performa 5260 series replaced the PowerPC 603 CPU with the improved 603e. The system shares its logic board and form factor with the education-market Power Macintosh 5260/100 and various regional variants sold under different model numbers.<ref>{{cite web |url=https://en.wikipedia.org/wiki/Power_Macintosh_5260 |title=Power Macintosh 5260 |publisher=Wikipedia |access-date=2026-02-10}}</ref>
Apple's technical specifications give 8 MB as the minimum RAM, an 800 MB hard drive and a 4× CD-ROM drive; the ''Service Source'' gives 16 MB as the minimum for the whole family.<ref name="apple" /><ref name="ss5260" />


== Model Variants ==
== Hardware ==
 
{| class="wikitable styled-table" style="width:90%;"
The Performa 5260 family includes several regional and speed variants:
|+ '''Apple's ''Service Source'' figures for the 5260 and 5280'''
 
! Item !! Figure
<templatestyles src="Template:StyledTable/styles.css" />
{| class="wikitable styled-table" style="width:100%; text-align:center;"
|+ '''Performa 5260/5280 Series Variants'''
|-
|-
! Model !! CPU Speed !! Hard Drive !! CD-ROM !! Introduction !! Region
| Processor || PowerPC 603e at 100 MHz (5260/100) or 120 MHz (5260/120, 5280); 64-bit PowerPC bus
|-
|-
| '''Performa 5260CD''' || 100 MHz || 800 MB or 1.2 GB || 4X || April 22, 1996 || Worldwide
| RAM || 16 MB minimum; two 72-pin SIMM sockets, 80 ns or faster; 64 MB maximum
|-
|-
| '''Performa 5270CD''' || 100 MHz || 1.2 GB || 4X || April 22, 1996 || Asia, Europe
| ROM and cache || 4 MB ROM; 256 KB level 2 cache
|-
|-
| '''Performa 5280''' || 120 MHz || 1.2 GB || 8X || November 12, 1996 || Japan
| Video || 1 MB DRAM frame buffer on the logic board; 640 × 480 at 16-bit
|}
 
The Performa 5270CD is identical to the 5260CD with a different model designation for Asian and European markets. The Performa 5280 is a later variant with a faster 120 MHz CPU and 8X CD-ROM drive, sold exclusively in Japan.
 
== Architecture and Processor ==
 
The Performa 5260CD uses the PowerPC 603e processor running at 100 MHz with a 40 MHz system bus.<ref>{{cite web |url=https://support.apple.com/kb/SP298 |title=Macintosh Performa 5260CD: Technical Specifications |publisher=Apple Inc. |access-date=2026-02-10}}</ref> The 603e is a 32-bit processor with a 64-bit data path and includes an integrated floating-point unit.
 
=== Cache Configuration ===
* '''L1 Cache:''' 32 KB (16 KB instruction + 16 KB data)
* '''L2 Cache:''' 256 KB (optional expansion slot)
 
=== ROM ===
The system includes 4 MB of ROM in a "New World" ROM-in-RAM configuration.
 
== Memory and Storage ==
 
=== RAM Configuration ===
{| class="wikitable styled-table" style="width:70%; text-align:center;"
|-
|-
! Specification !! Details
| Display || 14-inch shadow-mask CRT, 12.8-inch viewable; 0.28 mm dot pitch; 66.7 Hz; active raster 240 × 185 mm; 9,300 K white point
|-
|-
| '''RAM Type''' || 72-pin SIMM
| Storage || 800 MB, 1.2 GB or 1.6 GB IDE hard drive; AppleCD 600i (5260/100) or AppleCD 1200i (5260/120, 5280); 1.4 MB SuperDrive, manual insert
|-
|-
| '''Minimum Speed''' || 80 ns
| Ports || One ADB; two serial (mini DIN-8); external SCSI DB-25 for up to seven devices; sound input; front headphone jack and rear stereo output
|-
|-
| '''Standard RAM''' || 8 MB or 16 MB
| Expansion || LC processor-direct slot (96/114-pin); 112-pin communications slot; 60-pin video-in slot; TV tuner connector; external video connector slot
|-
|-
| '''Maximum RAM''' || 64 MB
| Electrical || 100–240 VAC, 47–63 Hz; 240 W maximum; 4.0 A maximum; 40 A peak inrush
|-
|-
| '''RAM Slots''' || 2
| Dimensions || 17.5 × 16 × 15.1 in (445 × 406 × 383 mm)
|}
|}
Source: pp. 4, 9–11 and 28–43.<ref name="ss5260" />


RAM cannot be interleaved on this system. 1 MB of system RAM is permanently dedicated to video function.
The 5260 looks like the [[Macintosh Performa 5200|5200 series]] but its logic board (661-1116 at 100 MHz, 661-1265 at 120 MHz), power supply board (661-1133), analogue/video board (661-1134) and CRT (661-1135) all have different part numbers from the 5200's (p. 216).<ref name="ss5260" /><ref name="ss52">Apple Computer, ''Service Source: Power Macintosh/Performa 5200 and 5300 (not 5260, 5280)'' (1997), Adjustments, pp. 275–317, and exploded view, p. 319, [[:File:Powermac.perf 5200.5300.pdf]].</ref> The 5200 series has a 15-inch tube and a 125 W, 2.5 A supply; the 5260 has a 14-inch tube and a 240 W, 4.0 A supply. Apple's 5200 manual marks every adjustment page "not for 5260, 5280".<ref name="ss52" /><ref name="ss5260" />
 
=== Storage Systems ===
* '''Hard Drive:''' 800 MB or 1.2 GB IDE internal drive
* '''Floppy Drive:''' 1.44 MB 3.5" manual-inject
* '''CD-ROM:''' 4X (5260CD/5270CD) or 8X (5280)
 
The system uses an IDE interface for the hard drive; internal SCSI hard drives are not supported.
 
== Display and Graphics ==
 
The Performa 5260CD features a built-in 14" Shadow Mask RGB CRT display running at 640×480 resolution with 16-bit color (thousands of colors). Video memory consists of 1 MB dedicated from system RAM and cannot be expanded.<ref>{{cite web |url=https://everymac.com/systems/apple/mac_performa/specs/mac_performa_5260cd.html |title=Apple Macintosh Performa 5260CD Specs |publisher=EveryMac.com |access-date=2026-02-10}}</ref>
 
An external display can be connected via an optional LC PDS video card.
 
== Audio Capabilities ==
 
The system provides 16-bit mono sound input through the rear audio input jack. Standard Macintosh sound output is provided through built-in speakers and a rear audio output jack.
 
== Input/Output and Expansion ==
 
=== Port Configuration ===
{| class="wikitable styled-table" style="width:70%; text-align:center;"
|-
! Port Type !! Quantity !! Notes
|-
| '''ADB''' || 1 || Apple Desktop Bus for keyboard and mouse
|-
| '''Serial''' || 2 || Printer and modem ports (no hardware handshaking)
|-
| '''Audio In''' || 1 || 16-bit mono
|-
| '''Audio Out''' || 1 || Stereo
|-
| '''SCSI''' || 1 || External DB-25 SCSI port
|-
| '''Video Out''' || 1 || Optional DB-15 (via expansion)
|}
 
The serial ports do not support hardware handshaking, limiting external modem speeds to 9600 bps.
 
=== Expansion Slots ===
* '''LC PDS:''' 1 slot for Processor Direct Slot cards
* '''Comm Slot:''' 1 slot for communication cards
* '''Video I/O Slot:''' 1 slot for video input/output cards
* '''TV Tuner Slot:''' 1 slot for optional TV tuner
 
== General Maintenance ==
 
For detailed maintenance practices including cleaning, PRAM battery management, connector corrosion prevention, and voltage adjustments, refer to the dedicated [[Macintosh Performa 5260CD General Maintenance]] page.
 
== PCB Schematics & Service Manual ==
 
The Performa 5260 shares its logic board with the Power Macintosh 5260 series.
 
=== Apple Service Manual ===
 
The official Apple Service Source documentation covers both the Power Macintosh 5260 and Performa 5260/5280 series.
 
All Apple Service Manuals can be found on the [[:Category:Apple Service Source|Apple Service Source]] page.
 
== Capacitor Replacement Guide ==
 
Detailed capacitor replacement guidelines for the logic board can be found on the [[Macintosh Performa 5260CD Capacitor Replacement Guide]] page.
 
== Retrobrite ==
 
To address plastic yellowing, detailed instructions can be found on the [[Retrobrite]] page.
 
== Troubleshooting ==
 
A comprehensive troubleshooting guide addressing no power, chime but no video, intermittent operation, Sad Mac errors, and floppy drive problems is available on the [[Macintosh Performa 5260CD Troubleshooting]] page.
 
== Technical Details ==
 
<templatestyles src="Template:StyledTable/styles.css" />
 
=== System Architecture at a Glance ===
{| class="wikitable styled-table" style="width:90%; text-align:center;"
! Sub-system !! Specification (Performa 5260CD, April 1996)
|-
| '''CPU''' || PowerPC 603e @ 100 MHz
|-
| '''Bus width''' || 32-bit data • 64-bit data path
|-
| '''System Bus''' || 40 MHz
|-
| '''ROM''' || 4 MB
|-
| '''RAM''' || 8-64 MB (72-pin SIMM)
|-
| '''Video''' || 640 × 480 @ 16-bit color
|-
| '''VRAM''' || 1 MB (from system RAM)
|-
| '''Sound''' || 16-bit mono input, stereo output
|-
| '''Disks''' || 1.44 MB floppy, 800 MB-1.2 GB HDD, 4X CD-ROM
|-
| '''Ports''' || ADB, SCSI, Serial × 2, Audio I/O
|}
 
=== Power Specifications ===
{| class="wikitable styled-table" style="width:70%; text-align:center;"
|-
! Specification !! Value
|-
| '''Input Voltage''' || 110V-240V AC
|-
| '''Frequency''' || 50-60 Hz
|-
| '''Maximum Wattage''' || 125 W
|}


The processor-direct slot takes many cards made for the Macintosh LC, but Apple says it is not a true PDS: cards that work with the main processor, such as cache or FPU cards, do not work (p. 11).<ref name="ss5260" /> A Cuda microcontroller handles soft power, resets, PRAM, ADB and the real-time clock; Apple says many system problems clear after pressing the Cuda reset button on the logic board (pp. 21, 178).<ref name="ss5260" />


== Apple's chassis, electrical and environmental figures ==
The PRAM battery connects to the logic board by a plug and sits on hook-and-loop tape. Apple's test is to replace it below 3.0&nbsp;V (pp. 174–177); Apple's technical specifications give the battery type as 4.5&nbsp;V alkaline.<ref name="ss5260" /><ref name="apple" />


* '''CPU''' PowerPC 603e at 100 MHz (5260/100) or 120 MHz (5260/120), 64-bit PowerPC bus; '''ROM 4 MB'''; '''256K level 2 cache'''; '''1 MB DRAM frame buffer''' on board for video
== Adjustments ==
* '''DRAM 16 MB minimum''', expandable to 64 MB (72-pin, 80 ns or faster). '''An 8 MB figure circulates for this machine; that is the 5200 and 5300 minimum, not this family's'''<ref name="ss5260">Apple Computer, ''Power Macintosh/Performa 5260, 5280 Series Service Source'' ([[Power Macintosh/Performa 5260, 5280 Series Service Source]], [[:File:Powermac.perf_5260.5280.pdf]]), Specifications, Adjustments (Geometry, Video) and Additional Procedures, Battery Verification (below 3.0 V, replace the battery).</ref>
Apple's adjustments for the 5260 and 5280 are light meter setup, geometry, video and power supply. Apple requires the power-supply adjustment whenever the analogue board or power supply is taken out: connect a DC voltmeter between the metal chassis and pin 3 of P805 on the power supply, and set R828 for 110 V DC (pp. 213–214).<ref name="ss5260" /> The 5200 series high-voltage adjustment (29.5 V at D713 or D703) does not apply.<ref name="ss52" />
* '''Dimensions''' 17.5 in (445 mm) H × '''16 in (406 mm) W''' × '''15.1 in (383 mm) D'''. Several pages on this wiki had the width and depth transposed
* '''Line voltage''' 100–240 VAC; '''frequency''' 47–63 Hz; '''power 240 W maximum'''
* '''Surge voltage''' 300 V rms for 100 ms; '''peak inrush current 40 A pk'''; '''current 4.0 A maximum''' for all line and load conditions; '''220 W maximum''' for all line and load conditions<ref name="ss5260" />
* '''Operating''' 10–40 °C; '''transit (72 h)''' −40 to +65 °C; '''storage (6 months)''' −40 to +47 °C; humidity 20–95 % non-condensing; altitude 0–10,000 ft
* '''PRAM battery''' 3.6 V ½AA lithium; Apple: '''replace below 3.0 V'''. Neutralise lithium leakage with bicarbonate of soda, not vinegar<ref name="ss5260" />


'''Apple's own weight figure for this chassis is internally contradictory and should not be quoted.''' It prints "Without CD-ROM: 17 lb. With CD-ROM: 19 lb. (21.15 kg)" — 19 lb is 8.6 kg, not 21.15 kg, and 17/19 lb is what the '''LC 630''' volume gives for a much smaller machine. The 21 kg / ~47 lb figure is the plausible one for a 15-inch all-in-one, and that is what this page carries, but it is flagged rather than presented as Apple's.
'''The power supply and analogue board carry mains and CRT voltages, and the power-supply adjustment is made with the machine running. Discharge the CRT before working near it; see [[CRT Discharge Procedure]].'''


'''Apple's built-in display figures''' for the 5260 and 5280: '''14-inch shadow mask, 12.8-inch viewable'''; dot pitch '''0.28 mm'''; vertical frequency '''66.7 Hz'''; active raster '''9.5 × 7.3 in'''; white point '''9,300 K'''; shipping brightness '''25 foot-lamberts'''; aluminised '''P22''' phosphor. Apple gives one video mode: '''640 × 480 at 16-bit colour'''. Note the '''14-inch''' tube — the 5200 and 5300 are 15-inch, and the two families are otherwise very similar.
== Maintenance and repair ==
Apple's symptom charts for this family are in its ''Service Source''.<ref name="ss5260" /> The 5200 series guides cover the same kind of chassis, but their board part numbers and the high-voltage adjustment do not apply to the 5260:
* [[Macintosh Performa 5200CD Troubleshooting]]
* [[Macintosh Performa 5200CD General Maintenance]]
* [[Macintosh Performa 5200CD Capacitor Replacement Guide]]


'''There is no high-voltage adjustment for this family.''' Apple publishes one for the 5200 and 5300 and marks every page of it "not for 5260, 5280". The Adjustments chapter here is '''Geometry''' and '''Video''' only, and Apple publishes '''no rail tolerance and no power-supply adjustment'''. The "+5 V 4.85–5.15 V / +12 V 11.90–12.75 V" pair that circulates on this wiki is Apple's Macintosh Plus and 128K/512K procedure with voltage test cable 077-0135.<ref name="ss5260" />
== Service documentation ==
<pdf width="800" height="500">File:Powermac.perf_5260.5280.pdf</pdf>


'''Note also the different supply rating.''' Apple gives this family '''240 W''' and '''4.0 A''' maximum against '''125 W''' and '''2.5 A''' for the 5200 and 5300, in the same-looking chassis — so a 5200-series supply is not a drop-in for a 5260.
== Related pages ==
* [[Power Macintosh 5260]]
* [[Macintosh Performa 5260]]
* [[Macintosh Performa 5270CD]]
* [[Macintosh Performa 5280]]
* [[Macintosh Performa 5200]]


== References ==
== References ==
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[[Category:Apple Vintage Computers]]
[[Category:Apple Vintage Computers]]
[[Category:All-in-One Macintosh]]
[[Category:Macintosh Performa]]
{{Navbox-AppleVintage|state=collapsed}}

Revision as of 17:05, 30 September 2026

Macintosh Performa 5260CD
Macintosh Performa 5260/120, the same case as the Performa 5260CD. Photo: Stephen Edmonds, Wikimedia Commons, CC BY-SA 2.5
Specifications
ManufacturerApple Computer, Inc.
TypeAll-in-one desktop personal computer
ReleasedApril 15, 1996 (Apple); April 22, 1996 (EveryMac)
DiscontinuedFebruary 1, 1997 (EveryMac)
Intro priceUS$1,900 (EveryMac)
CPUPowerPC 603e at 100 MHz
Memory8 or 16 MB, expandable to 64 MB
Storage800 MB or 1.2 GB IDE hard drive; 4× CD-ROM; 1.4 MB SuperDrive (manual insert)
DisplayBuilt-in 14-inch shadow-mask CRT; 640 × 480 at 16-bit
Sound16-bit stereo output, 16-bit mono input
ROM4 MB
Dimensions445 × 406 × 383 mm (17.5 × 16 × 15.1 in)
Weight45 lb (20.4 kg)
OS / FirmwareSystem 7.5.3 and later
Model no.M3457

The Macintosh Performa 5260CD is an all-in-one Macintosh with a 100 MHz PowerPC 603e and a built-in 14-inch monitor. Apple gives its introduction date as April 15, 1996, with System 7.5.3 as the original system software.[1] It is the Performa version of the Power Macintosh 5260/100, which Apple covers with the 5260/120 and 5280 in one service manual.[2] EveryMac gives April 22, 1996 for the introduction and February 1, 1997 for the discontinuation, a price of US$1,900 and model number M3457, and says it was sold worldwide with an 800 MB or 1.2 GB hard drive and 8 or 16 MB of RAM.[3] The Performa 5270CD is the same machine for markets outside the US.

Apple's technical specifications give 8 MB as the minimum RAM, an 800 MB hard drive and a 4× CD-ROM drive; the Service Source gives 16 MB as the minimum for the whole family.[1][2]

Hardware

Apple's Service Source figures for the 5260 and 5280
Item Figure
Processor PowerPC 603e at 100 MHz (5260/100) or 120 MHz (5260/120, 5280); 64-bit PowerPC bus
RAM 16 MB minimum; two 72-pin SIMM sockets, 80 ns or faster; 64 MB maximum
ROM and cache 4 MB ROM; 256 KB level 2 cache
Video 1 MB DRAM frame buffer on the logic board; 640 × 480 at 16-bit
Display 14-inch shadow-mask CRT, 12.8-inch viewable; 0.28 mm dot pitch; 66.7 Hz; active raster 240 × 185 mm; 9,300 K white point
Storage 800 MB, 1.2 GB or 1.6 GB IDE hard drive; AppleCD 600i (5260/100) or AppleCD 1200i (5260/120, 5280); 1.4 MB SuperDrive, manual insert
Ports One ADB; two serial (mini DIN-8); external SCSI DB-25 for up to seven devices; sound input; front headphone jack and rear stereo output
Expansion LC processor-direct slot (96/114-pin); 112-pin communications slot; 60-pin video-in slot; TV tuner connector; external video connector slot
Electrical 100–240 VAC, 47–63 Hz; 240 W maximum; 4.0 A maximum; 40 A peak inrush
Dimensions 17.5 × 16 × 15.1 in (445 × 406 × 383 mm)

Source: pp. 4, 9–11 and 28–43.[2]

The 5260 looks like the 5200 series but its logic board (661-1116 at 100 MHz, 661-1265 at 120 MHz), power supply board (661-1133), analogue/video board (661-1134) and CRT (661-1135) all have different part numbers from the 5200's (p. 216).[2][4] The 5200 series has a 15-inch tube and a 125 W, 2.5 A supply; the 5260 has a 14-inch tube and a 240 W, 4.0 A supply. Apple's 5200 manual marks every adjustment page "not for 5260, 5280".[4][2]

The processor-direct slot takes many cards made for the Macintosh LC, but Apple says it is not a true PDS: cards that work with the main processor, such as cache or FPU cards, do not work (p. 11).[2] A Cuda microcontroller handles soft power, resets, PRAM, ADB and the real-time clock; Apple says many system problems clear after pressing the Cuda reset button on the logic board (pp. 21, 178).[2]

The PRAM battery connects to the logic board by a plug and sits on hook-and-loop tape. Apple's test is to replace it below 3.0 V (pp. 174–177); Apple's technical specifications give the battery type as 4.5 V alkaline.[2][1]

Adjustments

Apple's adjustments for the 5260 and 5280 are light meter setup, geometry, video and power supply. Apple requires the power-supply adjustment whenever the analogue board or power supply is taken out: connect a DC voltmeter between the metal chassis and pin 3 of P805 on the power supply, and set R828 for 110 V DC (pp. 213–214).[2] The 5200 series high-voltage adjustment (29.5 V at D713 or D703) does not apply.[4]

The power supply and analogue board carry mains and CRT voltages, and the power-supply adjustment is made with the machine running. Discharge the CRT before working near it; see CRT Discharge Procedure.

Maintenance and repair

Apple's symptom charts for this family are in its Service Source.[2] The 5200 series guides cover the same kind of chassis, but their board part numbers and the high-voltage adjustment do not apply to the 5260:

Service documentation

References

  1. ↑ 1.0 1.1 1.2 Apple, "Macintosh Performa 5260CD: Technical Specifications".
  2. ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 Apple Computer, Service Source: Power Macintosh/Performa 5260, 5280 Series (1997), File:Powermac.perf 5260.5280.pdf; see Power Macintosh/Performa 5260, 5280 Series Service Source. Page numbers are PDF pages.
  3. ↑ EveryMac, "Macintosh Performa 5260CD Specs".
  4. ↑ 4.0 4.1 4.2 Apple Computer, Service Source: Power Macintosh/Performa 5200 and 5300 (not 5260, 5280) (1997), Adjustments, pp. 275–317, and exploded view, p. 319, File:Powermac.perf 5200.5300.pdf.
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