Jenco 3675/3676 PH/ORP Controller: Difference between revisions

Jenco 3675/3676
Preliminary Information
Release Year	Unknown
Leak Risk	Medium
Batteries	None
Mounting Technology	Through Hole, SMD
Capacitor Types	Aluminum Electrolytic, Tantalum, Ceramic
Destructive Entry	No

VisualWikitext

Revision as of 00:43, 11 August 2023

For more information, see this article's corresponding Wikipedia page: Device.

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

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.

The Jenco 3675 and 3676 are PH/ORP controllers commonly used in PLC setups for factories and other automated systems. They feature a 7-segment LED display for operation and high and low alarms.

Known Issues

Display not reading normally

Causes

Switch is broken off

Solutions

Replace switch or manually bridge a few pads to set permanently to PH or ORP. It is recommended to take the product apart before using the PH/mv switch.

Disassembly Notes

Undo the clip that holds the two parts of the housing together (display and body housing).

Undo the two connectors that connect the display to the other boards.

The back PCB can be delicately pulled off by undoing the 2 screws on the back board, then de-mating the male header pins on the back board from the female connectors on the back of the other 2 boards.

The bottom PCB can be delicately pulled off by de-mating the male header pins on the bottom board from the female connectors on the bottom of the other 2 boards.

Original Parts

Bottom PCB

Note model numbers and board revisions here

Capacitor Specifications and Footprint Information
RefDes	Qty	Capacitance	Voltage	Mount	Temp	Type	Brand	Series
Unknown/None	2	1000 µF	16V	Through Hole Radial	105 °C	Aluminum Electrolytic	Rukycon (Fake Rubycon)	YXA / RA (assumed generic 105C)
Unknown/None	2	330 µF	25 V	Through Hole Radial	105	Aluminum Electrolytic	Jakec	Unknown (assumed generic 105C)
C5, C6, C7, C8	4	0.1 µF / 100,000 pF		Through Hole Radial		Film
C9, C10	2	47 µF	16 V	Through Hole Radial	105	Aluminum Electrolytic	Jakec	Unknown (assumed generic 105C)

Active Components
RefDes	Qty	Part Number/Model Number	Manufacturer (If Applicable)	Explanation	Datasheet
Unknown/None	1	L7805CV	ST Microelectronics	Positive-Voltage Regulator	L7805CV
Unknown/None	3	DF01	MIC Group	Bridge Rectifier	DF005
Unknown/None		LM324N	Texas Instruments	Quad Operational Amplifiers (Quad Op-Amps)	LMx24

Left PCB

3672-5C 1201163 020620

Capacitor Specifications and Footprint Information
RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand	Series
C12, C13	2	1 µF		Through Hole Radial				0 °C	Multilayer Ceramic

Active Components
RefDes	Qty	Part Number/Model Number	Manufacturer (If Applicable)	Explanation	Datasheet
Unknown/None	2	LM324N	Texas Instruments	Quad Operational Amplifiers (Quad Op-Amps)	LMx24

Right PCB

3672-4D 1201164 020531

Capacitor Specifications and Footprint Information
RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand	Series
C29	1	.33 µF / 330,000 pF		Through Hole Radial					Multilayer Ceramic
C30	1	47 µF	16 V	Through Hole Radial				105 °C	Aluminum Electrolytic	Jakec	Unknown (Gen. 105C)

Active Components
RefDes	Qty	Part Number/Model Number	Manufacturer (If Applicable)	Explanation	Datasheet
Unknown/None	1	LM324N	Texas Instruments	Quad Operational Amplifiers (Quad Op-Amps)	LMx24
Unknown/None	1	OP07CP	Texas Instruments	Precision Operational Amplifiers (Precision Op-Amps)	OP07x

Back PCB

3672-6E

1201165

020531

Capacitor Specifications and Footprint Information
RefDes	Qty	Capacitance	Voltage	Mount	Temp	Type	Brand	Series
C15	1	0.33 µF / 330,000 pF		Through Hole Radial		Multilayer Ceramic
C18, C19	2	0.1 µF / 100,000pF		Through Hole Radial		Film
C20	1	.01 µF / 10,000pF		Through Hole Radial		Film
C22	1	1 µF		Through Hole Radial		Multilayer Ceramic
C28	1	47 µF	16 V	Through Hole Radial	105 °C	Aluminum Electrolytic	Jakec	Unknown (Generic 105C)

Active Components
RefDes	Qty	Part Number/Model Number	Manufacturer (If Applicable)	Explanation	Datasheet
Unknown/None	1	CD4070BE	Texas Instruments	CMOS Quad Exclusive OR Gates	CD4070B
Unknown/None	1	LM324N	Texas Instruments	Quad Operational Amplifiers (Quad Op-Amps)	LMx24
Unknown/None	1	OP07CP	Texas Instruments	Precision Operational Amplifiers (Precision Op-Amps)	OP07x
Unknown/None	1	LM2917N	National Semiconductor	Frequency to Voltage Converter	LM2917
Unknown/None	1	KA331		Voltage to Frequency Converter	KA331
Unknown/None	1	4N25		General Purpose 6-Pin Phototransistor Optocouples	4N25
Q3	1	C1185
A17	1	78L09		Positive-Voltage Regulators	78L09

Replacement Parts

Basic PCB Name

Electrolytic Capacitors
RefDes	Qty	Order Links
Unknown/None	2	Digikey
Unknown/None	2
C9, C10	2

Other Capacitors
RefDes	Qty	Compatible Part Number	Order Links

Active Components

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.

Kits

Digikey BOM: https://www.digikey.com/

References

@@ Line 2: / Line 2: @@
 {{DeviceAlerts}}
 {{InfoboxDevice
-|Title = New Device
+|Title = Jenco 3675/3676
 |Picture =
-|Release Year = 1980
+|Release Year = Unknown
-|Mounting Technology = Through Hole, SMD, BGA, Sockets
+|Mounting Technology = Through Hole, SMD
-|Capacitor Types = Aluminum Electrolytic, Tantalum, Ceramic, Polymer
+|Capacitor Types = Aluminum Electrolytic, Tantalum, Ceramic
 |Leak Risk = Medium
 |Batteries = None
@@ Line 48: / Line 48: @@
 !Series
 |-
-|
+|Unknown/None
 |2
 |1000 µF
@@ Line 61: / Line 61: @@
 |YXA / RA (assumed generic 105C)
 |-
-|
+|Unknown/None
 |2
-|330
+|330 µF
 |25 V
 |Through Hole Radial
@@ Line 74: / Line 74: @@
 |Unknown (assumed generic 105C)
 |-
-|C5, C6, C7, C84
+|C5, C6, C7, C8
 |4
-|100,000pF
+|0.1 µF / 100,000 pF
 |
 |Through Hole Radial
@@ Line 89: / Line 89: @@
 |C9, C10
 |2
-|47
+|47 µF
 |16 V
 |Through Hole Radial
@@ Line 197: / Line 197: @@
 |C29
 |1
-|330,000pF
+|.33 µF / 330,000 pF
 |
 |Through Hole Radial
@@ Line 268: / Line 268: @@
 |C15
 |1
-|330,000pF
+|0.33 µF / 330,000 pF
 |
 |Through Hole Radial
@@ Line 281: / Line 281: @@
 |C18, C19
 |2
-|100,000pF
+|0.1 µF / 100,000pF
 |
 |Through Hole Radial
@@ Line 294: / Line 294: @@
 |C20
 |1
-|10,000pF
+|.01 µF / 10,000pF
 |
 |Through Hole Radial
@@ Line 307: / Line 307: @@
 |C22
 |1
-|1 uF
+|1 µF
 |
 |Through Hole Radial
@@ Line 400: / Line 400: @@
 ===Basic PCB Name===
 {| class="wikitable sortable"
-|+Capacitors
+|+Electrolytic Capacitors
 ! RefDes
 ! Qty
 ! Compatible Part Number
 ! Order Links
+|-
+|Unknown/None
+|2
+|
+|[https://www.digikey.com/ Digikey]
+|-
+|Unknown/None
+|2
+|
+|
+|-
+|C9, C10
+|2
+|
+|
+|}
+{| class="wikitable"
+|+Other Capacitors
+!RefDes
+!Qty
+!Compatible Part Number
+!Order Links
 |-
 |
 |
 |
-|[https://www.digikey.com/ Digikey]
+|
+|-
+|
+|
+|
+|
+|-
+|
+|
+|
+|
+|}
+{| class="wikitable"
+|+Active Components
+!
+!
+!
+!
+|-
+|
+|
+|
+|
+|-
+|
+|
+|
+|
+|-
+|
+|
+|
+|
 |}
 ''If parts are not available or different selection is preferred, you can use the values in the [[#Original_Parts|Original Parts]] section to perform a parametric search.''