1084s-D1, Rear View

Hi Res Version, 1084s (black), Front View - 1825 x 1920, 735K
Hi Res Version, 1084ST, Front view - 1100 x 1064, 56K
Hi Res Version, 1084ST, Rear view - 972 x 943, 81K
Hi Res Version, 1084ST, Side view - 1304 x 1158, 86K
Hi Res Version, 1084ST, Ports - 1386 x 814, 73K
Hi Res Version, 1084s-D1, Front View - 1230 x 1134, 142K
Hi Res Version, 1084s-D1, Rear View - 1256 x 1154, 155K



1084ST

Picture Tube: 14 inch (13 inch viewiable), slotted triplet pitch 0.42 mm
Deflection: 90 degrees
Resolution: 640x256, 640x512 (interlaced)
Raster Frequency: 50 Hz
Line frequency: 15625 Hz
Character Field: RGB
2000 characters 80x25 rows
Composite Separated LCA
1000 characters 40x25 rows
VIDEO (Composite Video): 0,7V P-P, 75 ohm plus sync. 0,3V P
VIDEO (Luminance Signal): 1,0V P-P, 75 ohm
CHROMA (Chroma Signal): 1,0V P-P, 75 ohm
9-pin D: RGB Analog 0,7V P-P, 75 ohm
Sound output: 1,0W RMS/channel, 5% distortion
Audio input signal: 177 mV, 10K ohm
Mains voltage: 220-240V AC+/-10%, %0 Hz
Power consumption: 60W typical
Dimensions: (HxWxD) 355x360x365 mm
Weight: 12,5 kg

1084S

Picture Tube: 14 inch (13 inch viewable), slotted triplet pitch 0.42 mm
Deflection: 90°
Monitor input sockets for RGB signals:
9-pin D: RGB Analog 0.7 P-P, 75 Ohm
DIN connector: RGBI Digital TTL Levels
Resolution: 640 x 200 lines, 640 x 400 lines interlaced
Characters: RGB, RGBI, 2000 characters, Composite, Seperated LCA, 1000 characters
Raster Frequency: 50 or 60Hz
Line Frequency: 15625 - 15750Hz
Sound Output: 1WRMS
Audio Signal: 1.0V P-P, 47K Ohm
Mains Voltage: 120 VAC, 60Hz
Power Consumption: 75W
Dimensions (H x W x D): 330 x 357 x 378 mm
Weight: 11 kg

Looking at the back of the monitor

Digital Analog
Pin Number TTL Mode RGB Analog Mode

1 Ground Ground
2 Ground Ground
3 Red Red
4 Green Green
5 Blue Blue
6 Intensity N/C
7 N/C Composite Sync
8 Horiz.Sync N/C
9 Vert. Sync N/C
1084 Sub-Models

The 1084 and its variants (1084S, 1084ST, 1084S-P, 1084-P, 1084S-P2, 1084-D, 1084S-D) are all 15.75 kHz monitors. They do not handle AGA "double" screenmodes, nor will they display the deinterlaced output from the A2320 Amber board or the motherboard deinterlaced output on an A3000. However, they will show all normal 15.75 kHz displays, and many (most? all?) of the 1084 versions have a separate input for composite video.

The 1084 is a usually a variation of the Philips CM8833 monitor; the 1084S-D was made by Daewoo (as was the 1084D, probably). The display tubes used in these monitors were made by Orion, Toshiba, Hitachi, and Samsung.

At one time or another, every possible permutation of connectors and video capabilities on the 1084 seems to have been reached, so don't be surprised if your 1084 has some bizarre combination of connectors and specifications.

Common Problems

•The door covering the front-panel controls is typically broken off.
•The attached cables or connectors on some models tended to fail, causing loss of color or other problems. Resolder the pins. You can glue connectors in place to provide support.
•Failed or insufficient insulation may cause arcing.
•The power switch may partially fail, causing separate parts of the monitor to power down.
•A phone caller suggested that internal connectors could tarnish with age, and disconnecting and cleaning them may help clear up some problems.
•Repeatedly blown fuses can indicate a bad power supply.
•A loud whistling noise indicates a bad flyback transformer (also known as an LOPT). Some 1084 monitors also have digital RGB (PC clone CGA) inputs, and there was such a profusion of minor or major variations that any 1084 might have any combination of analog RGB, digital RGB, and composite inputs.
Other Notes
The 2080 is a long-persistance phosphor, .39 mm dot pitch.

Specifications

Sync Frequency 15.75 kHz (NTSC; 15.6 kHz PAL)

Pin-Outs (Analog RGB, 6-Pin DIN)

Pin 1: Green
Pin 2: Horizontal Sync
Pin 3: Ground
Pin 4: Red
Pin 5: Blue
Pin 6: Vertical Sync

Pin-Outs (Digital RGBI, 8-Pin DIN)

Pin 1: Unused
Pin 2: Red
Pin 3: Green
Pin 4: Blue
Pin 5: Intensity
Pin 6: Ground
Pin 7: Horizontal Sync
Pin 8: Vertical Sync

Pin-Outs (1084S DB9)

Pin 1: Ground
Pin 2: Ground
Pin 3: Red
Pin 4: Green
Pin 5: Blue
Pin 6: Unused
Pin 7: Composite Sync
Pin 8: Horizontal Sync
Pin 9: Vertical Sync