Hitachi SuperScan 812 - Revision history

Huntertur: /* History */ Goodbye monitor

2022-09-10T18:32:50Z

History: Goodbye monitor

← Older revision		Revision as of 18:32, 10 September 2022
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	* 2022-05-19: The popping has gotten really bad. Thankfully, it's the normal quiet volume for popping. I temporarily stop using it.		* 2022-05-19: The popping has gotten really bad. Thankfully, it's the normal quiet volume for popping. I temporarily stop using it.
	* 2022-05-22: I take the case and shield off and clean out the dust and debris. There was a good amount of dust and more little solid pieces than I usually see in equipment. Decided to let it sit for a bit before testing. When testing, the issue was even worse than before cleaning.		* 2022-05-22: I take the case and shield off and clean out the dust and debris. There was a good amount of dust and more little solid pieces than I usually see in equipment. Decided to let it sit for a bit before testing. When testing, the issue was even worse than before cleaning.
			* 2022-09-10: Given away at VCF Midwest.

	== Resources ==		== Resources ==

Huntertur: /* History */ :(

2022-05-23T01:36:26Z

History: :(

← Older revision		Revision as of 01:36, 23 May 2022
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	* 2022-05-17: An insanely loud pop occurs when turning the monitor. No indications of damage, though -- the picture is OK, the surge protector or circuit breaker didn't trip, and there was no smoke.		* 2022-05-17: An insanely loud pop occurs when turning the monitor. No indications of damage, though -- the picture is OK, the surge protector or circuit breaker didn't trip, and there was no smoke.
	* 2022-05-19: The popping has gotten really bad. Thankfully, it's the normal quiet volume for popping. I temporarily stop using it.		* 2022-05-19: The popping has gotten really bad. Thankfully, it's the normal quiet volume for popping. I temporarily stop using it.
	* 2022-05-22: I take the case and shield off and clean out the dust and debris. There was a good amount of dust and more little solid pieces than I usually see in equipment. Decided to let it sit for a bit before testing.		* 2022-05-22: I take the case and shield off and clean out the dust and debris. There was a good amount of dust and more little solid pieces than I usually see in equipment. Decided to let it sit for a bit before testing. When testing, the issue was even worse than before cleaning.

	== Resources ==		== Resources ==

Huntertur: /* History */ Add today's cleaning

2022-05-22T22:03:57Z

History: Add today's cleaning

← Older revision		Revision as of 22:03, 22 May 2022
Line 26:		Line 26:
	* 2022-05-17: An insanely loud pop occurs when turning the monitor. No indications of damage, though -- the picture is OK, the surge protector or circuit breaker didn't trip, and there was no smoke.		* 2022-05-17: An insanely loud pop occurs when turning the monitor. No indications of damage, though -- the picture is OK, the surge protector or circuit breaker didn't trip, and there was no smoke.
	* 2022-05-19: The popping has gotten really bad. Thankfully, it's the normal quiet volume for popping. I temporarily stop using it.		* 2022-05-19: The popping has gotten really bad. Thankfully, it's the normal quiet volume for popping. I temporarily stop using it.
			* 2022-05-22: I take the case and shield off and clean out the dust and debris. There was a good amount of dust and more little solid pieces than I usually see in equipment. Decided to let it sit for a bit before testing.

	== Resources ==		== Resources ==

Huntertur: Add information from today's disassembly

2022-05-22T00:56:49Z

Add information from today's disassembly

← Older revision		Revision as of 00:56, 22 May 2022
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	* The image is susceptible to frequent popping at weird resolutions, like when I have my DB-15 adapter set to output at 1152x870. When not at a weird resolution, things are OK.		* The image is susceptible to frequent popping at weird resolutions, like when I have my DB-15 adapter set to output at 1152x870. When not at a weird resolution, things are OK.
	* When displaying a low resolution at a low frequency like 640x480 @ 60 Hz, the left and right sides of the image are horizontally squished. Messing with the buttons on the front of the monitor doesn't seem to alleviate this. Thankfully, once I get a proper display resolution working, the problem seems to disappear.		* When displaying a low resolution at a low frequency like 640x480 @ 60 Hz, the left and right sides of the image are horizontally squished. Messing with the buttons on the front of the monitor doesn't seem to alleviate this. Thankfully, once I get a proper display resolution working, the problem seems to disappear.

			== Notes ==

			* The flyback transformer's part number is HFL1327RD

	== History ==		== History ==
Line 20:		Line 24:
	* Sat in a coworker's storage for years.		* Sat in a coworker's storage for years.
	* Acquired from said coworker.		* Acquired from said coworker.
			* 2022-05-17: An insanely loud pop occurs when turning the monitor. No indications of damage, though -- the picture is OK, the surge protector or circuit breaker didn't trip, and there was no smoke.
	* 2022-05-19: The popping has gotten really bad.
			* 2022-05-19: The popping has gotten really bad. Thankfully, it's the normal quiet volume for popping. I temporarily stop using it.

	== Resources ==		== Resources ==

Huntertur: /* History */ Add popping

2022-05-19T17:11:25Z

History: Add popping

← Older revision		Revision as of 17:11, 19 May 2022
Line 20:		Line 20:
	* Sat in a coworker's storage for years.		* Sat in a coworker's storage for years.
	* Acquired from said coworker.		* Acquired from said coworker.
			* 2022-05-19: The popping has gotten really bad.

	== Resources ==		== Resources ==

Huntertur: Add external link

2021-12-23T06:15:04Z

Add external link

← Older revision		Revision as of 06:15, 23 December 2021
Line 20:		Line 20:
	* Sat in a coworker's storage for years.		* Sat in a coworker's storage for years.
	* Acquired from said coworker.		* Acquired from said coworker.

			== Resources ==

			* [https://www.hitachidisplays.com/products/21_813.htm Hitachi Displays webpage for the series of monitors]

	[[Category:Equipment]]		[[Category:Equipment]]

Huntertur: Add History

2021-12-23T06:13:33Z

Add History

← Older revision		Revision as of 06:13, 23 December 2021
Line 15:		Line 15:
	* The image is susceptible to frequent popping at weird resolutions, like when I have my DB-15 adapter set to output at 1152x870. When not at a weird resolution, things are OK.		* The image is susceptible to frequent popping at weird resolutions, like when I have my DB-15 adapter set to output at 1152x870. When not at a weird resolution, things are OK.
	* When displaying a low resolution at a low frequency like 640x480 @ 60 Hz, the left and right sides of the image are horizontally squished. Messing with the buttons on the front of the monitor doesn't seem to alleviate this. Thankfully, once I get a proper display resolution working, the problem seems to disappear.		* When displaying a low resolution at a low frequency like 640x480 @ 60 Hz, the left and right sides of the image are horizontally squished. Messing with the buttons on the front of the monitor doesn't seem to alleviate this. Thankfully, once I get a proper display resolution working, the problem seems to disappear.

			== History ==

			* Sat in a coworker's storage for years.
			* Acquired from said coworker.

	[[Category:Equipment]]		[[Category:Equipment]]

Huntertur: Add page

2021-12-23T06:11:56Z

Add page

New page

[[Image:Lilia_CM812U.jpg|thumb|right|A kangaroo ponders the meaning of the monitor]]

The '''Hitachi SuperScan 812''' ('''CM812U''') is my standalone CRT monitor. I use it for all my old desktops.

== Features ==

* VGA connection
* Easily supports 1600x1200 @ 85 Hz
* Protects against bad frequencies with an "INVALID SCAN FREQ." message
* Protects against bad signals (i.e. I messed up the settings on my DB-15 adapter) with a rapidly blinking light
* ''Has the loudest degauss noise in existence''

== Quirks ==

* The image is susceptible to frequent popping at weird resolutions, like when I have my DB-15 adapter set to output at 1152x870. When not at a weird resolution, things are OK.
* When displaying a low resolution at a low frequency like 640x480 @ 60 Hz, the left and right sides of the image are horizontally squished. Messing with the buttons on the front of the monitor doesn't seem to alleviate this. Thankfully, once I get a proper display resolution working, the problem seems to disappear.

[[Category:Equipment]]