Apple Two-Page Mono Service Source: Difference between revisions
Auto-created Service Source documentation page |
Correct "no fuse rating": manual gives 2.5 A and flags 1.6 A fuses fitted in error (serials 43661GXW-44718HQX); add 31 fL video targets, stand checks, phosphor, dot clock, environment; remove unsupported comparisons; page-cited refs |
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< | The '''Apple Two-Page Monochrome Monitor''' volume of Apple's ''Service Source'' is a 98-page service manual for Apple's 21-inch two-page monochrome monitor. The PDF was distilled on 6 December 1995.<ref name="ss">Apple Computer, ''Apple Two-Page Monochrome Monitor'' (''Service Source''), 98 pp., 1995. Hosted as [[:File:Twopage monochrome monitor.pdf]].</ref> | ||
== Specifications as printed == | |||
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|+'''Apple Two-Page Monochrome Monitor specifications'''<ref name="spec">''Apple Two-Page Monochrome Monitor'' Service Source, Specifications: Characteristics pp. 2-3, Controls p. 4, Physical and Electrical p. 5, Operating Environment p. 6 (PDF pp. 11-15).</ref> | |||
! Item !! Value | |||
|- | |||
| Picture tube || 21 in diagonal, 20 in viewable; P4 (white) phosphor; flat, square, antiglare | |||
|- | |||
| Screen resolution || 1,152 × 870, 77 dpi; up to 16 greys with 512K of video RAM | |||
|- | |||
| Scan rates || Vertical 75 Hz; horizontal 68.7 kHz; dot clock 100 MHz | |||
|- | |||
| Active display area || 381 × 287 mm (15 × 11.3 in) | |||
|- | |||
| Input || Analogue video, RS-343 | |||
|- | |||
| Controls || Power switch on the rear panel; brightness and contrast on the right side | |||
|- | |||
| Power supply || Universal, 90-270 VAC self-configuring, 47-63 Hz, 95 W maximum | |||
|- | |||
| Size and weight || 399 mm H (add 81 mm for the integrated stand) × 495 mm W × 442 mm D; 25 kg (55 lb) | |||
|- | |||
| Operating environment || 10-35 °C; 90% humidity maximum, non-condensing; up to 3,048 m | |||
|} | |||
== Service notes from the manual == | |||
* Fuse: some units with serial numbers between 43661GXW and 44718HQX were fitted with a 1.6 A fuse on the power supply board. Apple says that value is incorrect and the correct fuse is 2.5 A.<ref name="fuse">''Apple Two-Page Monochrome Monitor'' Service Source, Take Apart, "Fuse" pp. 20-21 (PDF pp. 45-46).</ref> | |||
* The Video adjustments set sub-contrast and brightness range to 31 foot-lamberts ±3 fL, measured with Apple's R77 (part 076-0310), L-248 or 246 light meter; the Light Meter Setup section gives the meter reading that corresponds to 31 fL on each model.<ref name="video">''Apple Two-Page Monochrome Monitor'' Service Source, Adjustments, "Video" pp. 16-26 and "Light Meter Setup" pp. 27-32 (PDF pp. 80-96).</ref> | |||
* The Monitor Stand symptom chart covers a stand that will not swivel (check that the "Front" marks on the tilt/swivel mechanism and base line up, and that the snap lock assembly is in place) or will not tilt (check the plastic plug in the snap lock).<ref name="stand">''Apple Two-Page Monochrome Monitor'' Service Source, Troubleshooting, Symptom Charts/Monitor Stand p. 8 (PDF p. 24).</ref> | |||
* The Basics chapter is about environmental distortion of the raster, to be ruled out before adjusting or exchanging the monitor.<ref name="ss" /> | |||
== Contents == | |||
* Basics: Monitor Distortion (PDF pp. 3-9) | |||
* Specifications: Characteristics, Controls, Physical and Electrical, Operating Environment (PDF pp. 11-15) | |||
* Troubleshooting: General; Symptom Charts for No Raster, Geometry, Synchronization, Video, Miscellaneous and Monitor Stand (PDF pp. 17-24) | |||
* Take Apart: Swivel Stand, Rear Cover, Access Cover, Video Board, Deflection Board, Power Supply, Fuse, On/Off Switch, Contrast/Brightness Assembly, Bezel, CRT, LED Assembly (PDF pp. 26-63) | |||
* Adjustments: Geometry, Video, Light Meter Setup (PDF pp. 65-96) | |||
* Exploded View (PDF p. 98) | |||
== What this manual does not contain == | |||
No parts list, schematic, component values or power-supply rail figures.<ref name="ss" /> | |||
== Related pages == | |||
* [[Macintosh 21 Color Display Service Source]] | |||
* [[Macintosh Portrait Display Service Source]] | |||
* [[CRT Discharge Procedure]]: Apple's Take Apart procedures start by discharging the CRT. | |||
<pdf> File:Twopage monochrome monitor.pdf </pdf> | |||
Download: [[:File:Twopage monochrome monitor.pdf|Twopage monochrome monitor.pdf]] | |||
== References == | |||
<references /> | |||
[[Category:Service Manuals]] | [[Category:Service Manuals]] | ||
[[Category:Apple Vintage Computers]] | [[Category:Apple Vintage Computers]] | ||
[[Category:Apple Service Source]] | [[Category:Apple Service Source]] | ||
Latest revision as of 14:25, 30 September 2026
The Apple Two-Page Monochrome Monitor volume of Apple's Service Source is a 98-page service manual for Apple's 21-inch two-page monochrome monitor. The PDF was distilled on 6 December 1995.[1]
Specifications as printed
[edit | edit source]| Item | Value |
|---|---|
| Picture tube | 21 in diagonal, 20 in viewable; P4 (white) phosphor; flat, square, antiglare |
| Screen resolution | 1,152 × 870, 77 dpi; up to 16 greys with 512K of video RAM |
| Scan rates | Vertical 75 Hz; horizontal 68.7 kHz; dot clock 100 MHz |
| Active display area | 381 × 287 mm (15 × 11.3 in) |
| Input | Analogue video, RS-343 |
| Controls | Power switch on the rear panel; brightness and contrast on the right side |
| Power supply | Universal, 90-270 VAC self-configuring, 47-63 Hz, 95 W maximum |
| Size and weight | 399 mm H (add 81 mm for the integrated stand) × 495 mm W × 442 mm D; 25 kg (55 lb) |
| Operating environment | 10-35 °C; 90% humidity maximum, non-condensing; up to 3,048 m |
Service notes from the manual
[edit | edit source]- Fuse: some units with serial numbers between 43661GXW and 44718HQX were fitted with a 1.6 A fuse on the power supply board. Apple says that value is incorrect and the correct fuse is 2.5 A.[3]
- The Video adjustments set sub-contrast and brightness range to 31 foot-lamberts ±3 fL, measured with Apple's R77 (part 076-0310), L-248 or 246 light meter; the Light Meter Setup section gives the meter reading that corresponds to 31 fL on each model.[4]
- The Monitor Stand symptom chart covers a stand that will not swivel (check that the "Front" marks on the tilt/swivel mechanism and base line up, and that the snap lock assembly is in place) or will not tilt (check the plastic plug in the snap lock).[5]
- The Basics chapter is about environmental distortion of the raster, to be ruled out before adjusting or exchanging the monitor.[1]
Contents
[edit | edit source]- Basics: Monitor Distortion (PDF pp. 3-9)
- Specifications: Characteristics, Controls, Physical and Electrical, Operating Environment (PDF pp. 11-15)
- Troubleshooting: General; Symptom Charts for No Raster, Geometry, Synchronization, Video, Miscellaneous and Monitor Stand (PDF pp. 17-24)
- Take Apart: Swivel Stand, Rear Cover, Access Cover, Video Board, Deflection Board, Power Supply, Fuse, On/Off Switch, Contrast/Brightness Assembly, Bezel, CRT, LED Assembly (PDF pp. 26-63)
- Adjustments: Geometry, Video, Light Meter Setup (PDF pp. 65-96)
- Exploded View (PDF p. 98)
What this manual does not contain
[edit | edit source]No parts list, schematic, component values or power-supply rail figures.[1]
Related pages
[edit | edit source]- Macintosh 21 Color Display Service Source
- Macintosh Portrait Display Service Source
- CRT Discharge Procedure: Apple's Take Apart procedures start by discharging the CRT.
Download: Twopage monochrome monitor.pdf
References
[edit | edit source]- ↑ 1.0 1.1 1.2 Apple Computer, Apple Two-Page Monochrome Monitor (Service Source), 98 pp., 1995. Hosted as File:Twopage monochrome monitor.pdf.
- ↑ Apple Two-Page Monochrome Monitor Service Source, Specifications: Characteristics pp. 2-3, Controls p. 4, Physical and Electrical p. 5, Operating Environment p. 6 (PDF pp. 11-15).
- ↑ Apple Two-Page Monochrome Monitor Service Source, Take Apart, "Fuse" pp. 20-21 (PDF pp. 45-46).
- ↑ Apple Two-Page Monochrome Monitor Service Source, Adjustments, "Video" pp. 16-26 and "Light Meter Setup" pp. 27-32 (PDF pp. 80-96).
- ↑ Apple Two-Page Monochrome Monitor Service Source, Troubleshooting, Symptom Charts/Monitor Stand p. 8 (PDF p. 24).