User:Theretrobristolian/MS9-29: Difference between revisions
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== | ==Legacy Links== | ||
[[Media:Nanao_MS9_Schematic_1.jpg|Schematic Page 1]]<br/> | |||
[[Media:Nanao_MS9_Schematic_2.jpg|Schematic Page 2]]<br/> | |||
1 | [[Media:MS9chassispots.jpg|Pots on MS9 chassis]]<br/> | ||
2 | [[Media:Ms9pinout.png|Input pinout]]<br/> | ||
[[Nanao MS-9 capacitor listing]]<br/> | |||
==Common Faults== | ==Common Faults== | ||
Revision as of 15:43, 30 December 2023
| Nanao MS9-29 | |
|---|---|
 Photo of an MS9-29S-E chassis | |
 | |
| Manufacturer | NANAO CORPORATION |
| Year(s) | 1997 |
| Resolution(s) | 15kHz and 24kHz |
| Resolution Switching | Manual or Auto (on some models) |
| B+ (Voltages) | 15kHz 76V DC / 24kHz 116V DC |
| Predecessor | MS8-29 |
| Successor | MS-2931 |
The Nanao MS9-29 was an arcade monitor manufactured by the NANAO Corporation (now known as Eizo Corporation)[1]. The MS9-29 proved to be a popular choice of Sega Europe being fitted to many genre defining machines like Daytona USA and House of the Dead. It was also known for its usage in Sega New Astro City and Taito Egret II cabinets.
The MS9-29 was a successor to the previous MS8-29 in almost every way, with improved safety (due to more components being on the secondary side instead of the primary side) and better colour adjustment with a dedicated Contrast pot. Sadly the MS9-29 in its default configuration suffers from a slightly softer picture than the MS8-29 in 24Khz mode, however a modification has been identified to restore the sharpness of the MS8 to the MS9[2].
Even to this day the MS9-29 proves to be a fan favourite.
Hardware Specifications
Chassis:
Input Voltage: 100-120V 50/60Hz 1.7A (105W)
LOPT (Flyback):
B+ Voltage: 15kHz 76V DC / 24kHz 116V DC (You must set the 15kHz voltage correctly first as the 24kHz is reliant on this).
Monitor tubes:
A68KJU96X (Toshiba)
A68KSA30X (Hitachi)
M68JUA068X (Matsushita)
A number followed by a letter between brackets on the label of Toshiba CRTs is the date of manufacture (4D = April 1994, 6H = August 1996, etc.) and is not part of the CRT designation.
Adjustment settings
| Location | Name | Value | Part | Brand | Replacements |
|---|---|---|---|---|---|
| VR283 | Contrast | 5K | 502B Dt | ALPS JAPAN | PTV09A-4015F-B502 |
| VR280 | R-GAIN | 3.3K | Unknown | Unknown | Amazon Link |
| VR281 | G-GAIN | 3.3K | Unknown | Unknown | Amazon Link |
| VR282 | B-GAIN | 3.3K | Unknown | Unknown | Amazon Link |
| VR284 | BRIGHT | 3.3K | Unknown | Unknown | Amazon Link |
| VR285 | H. Size | 10K | 103B Dt | ALPS JAPAN | PTV09A-4015U-B103 |
| VR286 | H. Posi | 10K | 103B Ct | ALPS JAPAN | PTV09A-4015U-B103 |
| VR287 | V. Size | 10K | 103B Dt | ALPS JAPAN | PTV09A-4015U-B103 |
| VR288 | V. Posi | 10K | 103B Dt | ALPS JAPAN | PTV09A-4015U-B103 |
ST-V Mod BIOS
The ST-V MODBIOS able from Joerg Hartenberger's website.
Manuals
Monitor Labels
Legacy Links
Schematic Page 1
Schematic Page 2
Pots on MS9 chassis
Input pinout
Nanao MS-9 capacitor listing
Common Faults
"ST-V IMPROPER GAME INSTALLATION" appears if Isopropyl Alcohol and a toothbrush.
Contributions and thanks
Thanks goes to initial contributions made by 'Kazuo', updated contributions made by 'TheRetroBristolian' and the 'Arcade Otaku Wiki pages' for hosting and assisting with tidying up and making this valuable information for others to read and enjoy.