- For more information, see this article's corresponding Wikipedia page: Plantronics Colorplus.
| This device is in the WorkNeeded:OriginalParts category because it was flagged as missing information on the original parts. It may have replacement parts listed but those cannot be assumed to be identical to the originals. If you have a list of the original parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables
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| This device is in the WorkNeeded:ReplacementParts category because it was flagged as missing information on replacement parts. If it has the original parts listed you may be able to search for replacements using the parametric searches available from parts distributors. If you have or make a list of replacement parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables
|
|
| This device is in the WorkNeeded:General category because it was flagged as missing general information about the device. The information may be incomplete, using default text, or inaccurate and should be verified with external sources if possible. If you can add or correct information on this page, please feel free to edit it and do so.
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Known Issues
Symptom or Problem Encountered
Causes
Solutions
Disassembly Notes
Tools Needed
Disassembly
- Start by unscrewing the 4 standoffs from the two D-Sub connectors at the rear of the card. Then remove the ISA bracket.
- Using your fingers, separate the two boards by pulling them apart near each of the three plastic standoffs to release them.
- Pull the two boards apart, careful not to bend the connector pins.
Original Parts
Upper Board
Capacitor Specifications and Footprint Information
| RefDes
|
Qty
|
Capacitance
|
Voltage
|
Mount
|
Lead Spacing
|
Temp
|
Type
|
Markings
|
| C1-C22, C25, C26
|
24
|
|
|
Through Hole
|
7mm
|
|
?
|
K104M
|
| C23
|
1
|
|
|
Through Hole
|
2mm
|
|
Tantalum
|
336 + 10K
|
| C24, C27-C33
|
9
|
33nF
|
|
Through Hole
|
2mm
|
|
Ceramic
|
222
|
| C35
|
1
|
33pF
|
|
Through Hole
|
6mm
|
|
Ceramic
|
330K 1KV
|
| C36
|
1
|
10pF
|
|
Through Hole
|
6mm
|
|
Ceramic
|
100K 1KV
|
Lower Board
Capacitor Specifications and Footprint Information
| RefDes
|
Qty
|
Capacitance
|
Voltage
|
Mount
|
Lead Spacing
|
Temp
|
Type
|
Markings
|
| C1-C13, C15, C16, C17
|
16
|
|
|
Through Hole
|
7mm
|
|
?
|
K104M
|
| C14
|
1
|
33 µF
|
10V
|
Through Hole
|
5mm
|
|
Tantalum
|
33-10
|
| C18
|
1
|
0.01 µF
|
|
Through Hole
|
2mm
|
|
Ceramic
|
103
|
| *U19 between pins 3 and 7
|
1
|
|
|
Through Hole
|
N/A
|
|
Ceramic
|
330K Z5F 1KV Mexico
|
* Not sure if this is from the factory or not
Intergrated Circuits
| RefDes
|
Qty
|
Model Number/Part Number
|
Brand (if applicable)
|
Explanation
|
Datasheet
|
| U1-U16
|
16
|
MK4516N-12
|
Mostek
|
2 Kibibyte (2 Kibibyte x 1 Memory Organization) DRAM [5V version of the 4116]
|
MK4516 MK4516 (other link)
|
| U17, U20, U21, U22, U23
|
5
|
SN74LS166
|
Texas Instruments
|
8-Bit Shift Register
|
SN74LS166 SN74LS166 (other link)
|
| U18, U19
|
2
|
74LS273N
|
|
Octal D-Type Flip Flop with Single Non-Inverting Outputs
|
SN74LS273
|
|
|
|
|
|
|
|
Replacement Parts
Upper Board
Lower Board
Capacitors
| RefDes
|
Qty
|
Compatible Part Number
|
Order Links
|
| C14
|
1
|
TAP336M010CCS / TAP336K010SCS
|
Digikey Mouser
|
| C18
|
1
|
K103K10X7RF5UH5 / ZU102103M100X05B0P
|
DigiKey Mouser LCSC
|
| *U19 between pins 3 and 7
|
1
|
CC45SL3AD330JYNNA
|
DigiKey Mouser LCSC
|
Integrated Circuits
| RefDes
|
Qty
|
Compatible Part Number
|
Order Links
|
| U17, U20, U21, U22, U23
|
5
|
SN74LS166AN
|
DigiKey Mouser
|
| U18, U19
|
2
|
SN74LS273N
|
DigiKey Mouser LCSC
|
|
|
|
|
|
Additional Images
-
Capacitors C35 and C36 on the upper board.
-
Capacitor between pins 3 and 7 on U19.
-
Backside of capacitor at U19.
-
-
-
-
Bottom PCB with CGA connector
-
Rear view of bottom board.
Related Links
References
