T202: Difference between revisions

Latest revision as of 11:52, 14 December 2024

Tektronix T202

Hand-held 5 MHz LCD scope

Produced from 1988 to 1990

Manuals

Tektronix T202 Operators Manual

ROM Images

File	Pos.	Checksum

0: 0-23.7
8: 8-23.7

(All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix T202 is a battery-powered, hand-held 5 MHz digital storage scope with voltmeter and frequency counter functions. It has a 128x128 monochrome LCD.

This was an OEM version of a Createc SC series unit, introduced in the mid-1980s, which was also sold under other brands.

Key Specifications

please add

Links

Tektronix T202 @ radiomuseum.org
Thead on Createc SC-04 with internal pictures
[[https://vintagetek.org/t200-series-handheld-oscilloscopes/ page on vintageTEK on the introduction of the T200 series

Pictures

The slide switches are patented
The screws for opening the unit are hidden behind so called "warranty plugs". These plugs can't be removed without destroying them
4 boards are stacked upon each other. The digital board is covered within an aluminium foil
View on the potentiometer for LCD contrast and the protection resistors
view on the BNC connecters. The ground path is protected with a 4mm glass fuse
Top view on the analog board. he A/D converter is a PNA7509 - a 7bit/22MHz unit.
The bottom reveals some SMD components
Top view of the digital board. It contains a microcontroller with typical RAM/Rom combination, but also a voltage reference and 2 proprietary ICs for signal processing.
The bottom reveals some SMD components
Overview of the display board
The display unit is a complete package
This board also contains proprietary ICs. The top half is the graphics processor with some RAM. The bottom contains the keyboard circutry.
The external powersupply with removed battery cover
Closeup of the power supply board
Rear view of the power supply board
A bag with a pair of probes

Test procedures

The firmware reveals that some diagnostic routines are integrated into the scope. These are not mentioned in the user manual.

@@ Line 6: / Line 6: @@
 |image=T202.jpg
 |caption=Tektronix T202
-|introduced=1989
+|introduced=1988
-|discontinued=(?)
+|discontinued=1990
 |manuals=
 * [[Media:070-6419-00.pdf|Tektronix T202 Operators Manual]]
+{{ROM Images}}
+* 0: [[Media:T202_0_23_7.bin|0-23.7]]
+* 8: [[Media:T202_8_23_7.bin|8-23.7]]
 }}
 The '''Tektronix T202''' is a battery-powered, hand-held 5 MHz digital storage scope with voltmeter and frequency counter functions. It has a 128x128 monochrome LCD.
-This was an OEM version of a [http://www.radiomuseum.org/dsp_hersteller_detail.cfm?company_id=11339 Createc] SC series unit, introduced in the mid-1980s, which was also sold under the Gossen/Norma brand.
+This was an OEM version of a [[Createc]] SC series unit, introduced in the mid-1980s, which was also sold under other brands.
 {{MissingSpecs}}
@@ Line 20: / Line 24: @@
 * [http://www.radiomuseum.org/r/tektronix_handheld_5mhz_lcd_oscilloscope_t202.html Tektronix T202 @ radiomuseum.org]
 * [http://www.eevblog.com/forum/testgear/vintage-handheld-scope-createc-sc04/ Thead on Createc SC-04 with internal pictures]
+* [[https://vintagetek.org/t200-series-handheld-oscilloscopes/ page on vintageTEK on the introduction of the T200 series
 ==Pictures==
@@ Line 36: / Line 41: @@
 Tek t202 12.jpg
 Tek_T201_pwr.jpg
+Tek_t202_slide_switch.jpg | The slide switches are patented
+Tek_t202_warranty_plugs.jpg | The screws for opening the unit are hidden behind so called "warranty plugs". These plugs can't be removed without destroying them
+Tek_t202_open01.jpg | 4 boards are stacked upon each other. The digital board is covered within an aluminium foil
+Tek_t202_open02.jpg | View on the potentiometer for LCD contrast and the protection resistors
+Tek_t202_open03.jpg | view on the BNC connecters. The ground path is protected with a 4mm glass fuse
+Tek_t202_analog_top.jpg | Top view on the analog board. he A/D converter is a PNA7509 - a 7bit/22MHz unit.
+Tek_t202_analog_btm.jpg | The bottom reveals some SMD components
+Tek_t202_digital_top.jpg | Top view of the digital board. It contains a microcontroller with typical RAM/Rom combination, but also a voltage reference and 2 proprietary ICs for signal processing.
+Tek_t202_digital_btm.jpg | The bottom reveals some SMD components
+Tek_t202_display_top.jpg | Overview of the display board
+Tek_t202_displayboard_closeup.jpg | The display unit is a complete package
+Tek_t202_keyboard_top.jpg | This board also contains proprietary ICs. The top half is the graphics processor with some RAM. The bottom contains the keyboard circutry.
+Tek_t202_pwrsply_closeup.jpg | The external powersupply with removed battery cover
+Tek_t202_pwrsply_front.jpg | Closeup of the power supply board
+Tek_t202_pwrsply_rear.jpg | Rear view of the power supply board
+Tek_P6115_bag.jpg | A bag with a pair of probes
+</gallery>
-Tek_t202_warranty_plugs.jpg
+==Test procedures==
-Tek_t202_open03.jpg
+<gallery>
-Tek_t202_open02.jpg
+Tek_T202_test_procedures.jpg | The firmware reveals that some diagnostic routines are integrated into the scope. These are not mentioned in the user manual.
-Tek_t202_slide_switch.jpg
+</gallery>
-Tek_t202_pwrsply_rear.jpg
-Tek_t202_pwrsply_front.jpg
-Tek_P6115_bag.jpg
-Tek_t202_keyboard_top.jpg
-Tek_t202_display_top.jpg
-Tek_t202_digital_btm.jpg
-Tek_t202_pwrsply_closeup.jpg
-Tek_t202_analog_top.jpg
-Tek_t202_analog_btm.jpg
-</gallery>
 [[Category:Digital storage scopes]]