100 Minute Master Up/Down Timer: Difference between revisions

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== Original Parts ==
== Original Parts ==
=== Main PCB ===
=== Main PCB ===
''ES362A''
''ES362A - PCB UCT-1 Logic''
{| class="wikitable sortable"
{| class="wikitable sortable"
|+Capacitor [[Capacitor Specifications|Specifications]] and  [[Part Footprints|Footprint]] Information
|+Capacitor [[Capacitor Specifications|Specifications]] and  [[Part Footprints|Footprint]] Information
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|Ceramic Disc
|Ceramic Disc
|
|
|
|}
{| class="wikitable sortable"
|+Other Passive Component Specifications and  [[Part Footprints|Footprint]] Information
!RefDes
!Qty
!Value
!Power
![https://caps.wiki/wiki/Part_Footprints Mount]
!Temp
!Type
!Tolerance
|-
|R1, R2
|2
|75Ω
|½ Watt
|Through Hole, Axial
|
|Carbon Film
|10%
|-
|R3
|1
|51kΩ
|¼ Watt
|Through Hole, Axial
|
|Carbon Film
|10%
|-
|R4
|1
|120kΩ
|¼ Watt
|Through Hole, Axial
|
|Carbon Film
|10%
|-
|R5, R6, R9-R16
|10
|22kΩ
|¼ Watt
|Through Hole, Axial
|
|Carbon Film
|10%
|-
|R7 (option Y and Z models only)
|1
|5.1kΩ
|¼ Watt
|Through Hole, Axial
|
|Carbon Film
|10%
|-
|R9-R46
|27
|220Ω
|¼ Watt
|Through Hole, Axial
|
|Carbon Film
|10%
|-
|R47-R53 (option T models only)
|7
|220Ω
|¼ Watt
|Through Hole, Axial
|
|Carbon Film
|10%
|-
|R62 (option T models only)
|1
|330Ω
|¼ Watt
|Through Hole, Axial
|
|Carbon Film
|10%
|-
|R63
|1
|18Ω
|¼ Watt
|Through Hole, Axial
|
|Carbon Film
|
|-
|R64
|1
|150Ω
|½ Watt
|Through Hole, Axial
|
|Carbon Film
|
|-
|R65-R69
|1
|510Ω
|¼ Watt
|Through Hole, Axial
|
|Carbon Film
|
|
|}
|}

Revision as of 22:26, 13 February 2022

100 Minute Master Up/Down Timer
Preliminary Information
Release Year 1994
Leak Risk Low
Batteries None
Mounting Technology Through Hole, Sockets
Capacitor Types Aluminum Electrolytic, Ceramic
Destructive Entry No

This is a standalone timer used in studios for synchronizing coundown/countup clocks. Manufactured by ESE. Model ES-362A. Uses Intel 8749-CT4 as the microcontroller.

Known Issues

The linear power supply runs hot and relies on electrolytic capacitors.

Symptom or Problem Encountered

  • No display
  • No timing signal

Causes

  • Dried out electrolytic capacitors and a blown linear regulator IC.

Solutions

  • Replace faulty parts.

Disassembly Notes

This device is easy to disassemble. The case is held together with screws and the PCB can be detached from the plastic standoffs easily. Make sure to snip the cable ties to make the wires long enough to flip over the board.

Original Parts

Main PCB

ES362A - PCB UCT-1 Logic

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Lead Spacing Temp Type Brand Series
C1 1 4700 µF 10 Through Hole, Axial 12mm 85 °C Electrolytic Shoei CE
C2, C3 2 3300 µF 16 Through Hole, Radial 16mm 0.3" 105 °C Electrolytic Shoei CEW
C4 1 10 µF 35 Through Hole, Radial 5mm 0.1" 105 °C Electrolytic Shoei CEW
C5 1 100 µF 25 Through Hole, Radial 6mm 0.1" 105 °C Electrolytic Shoei CEW
C6, C7 2 10 pF 50 Through Hole, Radial 4mm 0.2" Ceramic Disc
C8, C10 3 0.01 µF 50 Through Hole, Radial 6mm 0.2" Ceramic Disc
C9 1 4.7 µF 50 Through Hole, Radial 4mm 0.1" 105 °C Electrolytic Shoei CEW
C11 1 0.1 µF 50 Through Hole, Radial 5mm 0.2" Ceramic Disc
Other Passive Component Specifications and Footprint Information
RefDes Qty Value Power Mount Temp Type Tolerance
R1, R2 2 75Ω ½ Watt Through Hole, Axial Carbon Film 10%
R3 1 51kΩ ¼ Watt Through Hole, Axial Carbon Film 10%
R4 1 120kΩ ¼ Watt Through Hole, Axial Carbon Film 10%
R5, R6, R9-R16 10 22kΩ ¼ Watt Through Hole, Axial Carbon Film 10%
R7 (option Y and Z models only) 1 5.1kΩ ¼ Watt Through Hole, Axial Carbon Film 10%
R9-R46 27 220Ω ¼ Watt Through Hole, Axial Carbon Film 10%
R47-R53 (option T models only) 7 220Ω ¼ Watt Through Hole, Axial Carbon Film 10%
R62 (option T models only) 1 330Ω ¼ Watt Through Hole, Axial Carbon Film 10%
R63 1 18Ω ¼ Watt Through Hole, Axial Carbon Film
R64 1 150Ω ½ Watt Through Hole, Axial Carbon Film
R65-R69 1 510Ω ¼ Watt Through Hole, Axial Carbon Film

Replacement Parts

Main PCB

Capacitors
RefDes Qty Compatible Part Number Order Links
C1 1 478TTA010M-ND Digikey
C2, C3 2 493-1797-ND Digikey
C4 1 493-11317-1-ND Digikey
C5 1 493-10975-1-ND Digikey
C9 1 493-13474-1-ND Digikey

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

Connector Pinouts

DE-9
Pin Function
1 Up
2 Stop
3 Reset
4 Down
5 Preset
6 Relay contact (dry contact, option "Z")
7 Relay contact (dry contact, option "Z")
8 N/C
9 Ground
BNC
Pin Function
Center Serial Time Signal Out
Shield Ground

Related Links

References

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