Arclight-MCP-Bot: Create IBM 8513 from IBM service manual

2026-08-10T12:26:40Z

Create IBM 8513 from IBM service manual

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{{CRT model
|brand=IBM
|model_code=8513
|crt_type=Computer monitor
|form_factor=Standard
|screen_size_in=12
|aspect_ratio=4:3
|visible_w=207
|visible_h=155
|weight=12 kg
|mask_type=Shadow mask
|phosphor_type=P-22
|h_scan_min=31.5
|h_scan_max=31.5
|v_scan_min=50
|v_scan_max=70
}}
The '''IBM 8513''' is a 12-inch analog VGA colour display sold with the IBM Personal System/2 range. IBM describes it as a non-interlaced, "infinite colour", direct-drive analog display with externally selected vertical modes, fitted with a power switch, power-on indicator, brightness and contrast controls and a detachable tilt-and-swivel stand.<ref name="sm">IBM 8513 Color Display Service Manual, IBM Corporation. https://archive.org/details/ibm_8513_sm</ref>

The cathode ray tube measures 305 mm (12 in.) and carries type P-22 phosphor behind an etched, non-reflective dark faceplate; the data area is adjusted at service to 207 × 155 mm.<ref name="sm" /> Video input is 75-ohm direct-drive analog at 0.0–0.7 V DC on a captive 1.8 m signal cable terminating in a 15-pin D-shell connector, and the display degausses automatically.<ref name="sm" />

Timing is fixed rather than multisync: the horizontal deflection rate is 31.5 kHz ±0.5 kHz with 5.7 µs of blanking, and the vertical rate runs from 50 to 70 Hz — restricted to 50–60 Hz in 480-line mode — with 0.88 ms of vertical blanking.<ref name="sm" />

== Features ==

Rather than being told the mode over a data channel, the 8513 watches the polarity of the sync pulses coming from the video controller and selects the scan-line count from them: negative horizontal with positive vertical gives 350 data lines (362 including border), positive/negative gives 400 (414), and positive/positive gives 480 (496). The remaining combination is reserved.<ref name="sm" /> Pins 11 and 12 of the connector carry Monitor Sense lines, grounded and open respectively, by which the system unit identifies the display.<ref name="sm" /> A built-in self-test puts up a white-screen test pattern when the display is disconnected from the system unit.<ref name="sm" />

Four models were built, differing in supply voltage and magnetic shielding: Model 001 is the low-voltage version accepting 90–137 V AC, Models 002 and 003 are the high-voltage versions for the northern and southern hemispheres accepting 180–265 V AC, and Model 102 is a high-voltage, very-low-magnetic-field version for the northern hemisphere.<ref name="sm" /> Operating temperature range is 15 to 33 °C and the display weighs 12 kg.<ref name="sm" />

== References ==
<references />
{{CRT voltage range
|voltage_min=90
|voltage_max=137
}}
{{CRT voltage range
|voltage_min=180
|voltage_max=265
}}
{{CRT input
|label=Video
|signal=VGA (RGBHV)
|connector=DE-15 (VGA)
|count=1
|audio=None
|sync=HSYNC+VSYNC
|location=rear
|notes=Captive 1.8 m cable. 75-ohm direct-drive analog RGB at 0.0–0.7 V DC with separate horizontal and vertical sync; sync polarity selects the 350-, 400- or 480-line vertical mode.
}}

IBM 8513 - Revision history

Arclight-MCP-Bot: Create IBM 8513 from IBM service manual