Tektronix 1235 manual FRU Disassembly, Vii

Page 7

Service Tests and Adjustments

61

 

 

Diagnostics mode

61

 

 

 

Switch scan test 63

 

 

 

LED head test

68

 

 

 

Motor and clutch tests

69

 

Test printing

71

 

 

 

Consumable count initialization 73

 

Consumable counter display 75

 

Consumable continuation counter display

76

Adjusting color density and balance 77

 

Printing a Test Page

77

 

Interpreting the Color Balance test print

77

What to look for

78

 

 

Making adjustments

78

 

Adjustment recovery

79

 

Cleaning and Maintenance

81

 

 

 

 

Service preventive maintenance procedure

81

Recommended tools

82

 

 

 

 

Periodically replaced parts

82

 

 

 

Cleaning 83

 

 

 

 

 

 

 

Cleaning the LED bar

83

 

 

 

Cleaning the pickup roller

83

 

 

Resetting NVRAM

85

 

 

 

 

 

FRU Disassembly

87

 

 

 

 

 

 

Cabinet panels

 

87

 

 

 

 

 

Top cover

 

87

 

 

 

 

 

Left-side cover

88

 

 

 

 

Right-side cover

89

 

 

 

 

Rear cover

90

 

 

 

 

 

Front cover

91

 

 

 

 

 

Face-up tray

92

 

 

 

 

 

Frames components

93

 

 

 

 

Right shield plate

93

 

 

 

 

Electrical chassis (card cage)

94

 

 

Electrical chassis cooling fan

96

 

 

Printer unit chassis 97

 

 

 

 

Main cooling fan

99

 

 

 

 

Top cover inner frame

100

 

 

 

Left/right top cover spring assembly

103

Left paper tray guide assembly

104

 

Right paper tray guide assembly

106

 

Service Guide

vii

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Contents T W O R K C O L O R P R I N T E R Page Users safety summary Service safety summary Contents Vi Phaser 1235 Network Color Printer Vii FRU DisassemblyViii Phaser 1235 Network Color Printer FRU List 187 Wiring Diagram211 Figures Phaser 1235 Network Color PrinterService Guide Xii Phaser 1235 Network Color Printer Tables

1235 specifications

The Tektronix 1235 is a versatile and high-performance oscillograph that has made a significant impact in the realm of electronic testing and troubleshooting. Renowned for its innovative technologies and robust features, the 1235 caters to a wide range of applications, particularly in industries such as telecommunications, automotive, and educational institutions.

One of the standout features of the Tektronix 1235 is its dual-channel capability, allowing users to observe and analyze multiple signals simultaneously. This is particularly advantageous for engineers and technicians who need to compare waveforms directly, enhancing their ability to diagnose circuit-related issues efficiently. The oscilloscope supports a bandwidth of up to 100 MHz, ensuring that it can capture fast transient signals with precision.

The Tektronix 1235 also boasts a sampling rate of 500 MS/s, which is crucial for accurately reconstructing complex waveforms. This high sampling rate minimizes the risk of aliasing, ensuring that signals are displayed accurately on the screen. Furthermore, its deep memory architecture allows for long acquisition times, enabling prolonged observation of waveforms without the need to frequently refill memory.

In terms of user interaction, the Tektronix 1235 features a user-friendly interface that simplifies the process of setting up measurements. The clear, bright display enhances visibility, even under varying lighting conditions. It also includes numerous trigger options, so users can capture specific events with ease, making it well-suited for troubleshooting repetitive signals or sporadic glitches.

Another key characteristic of the Tektronix 1235 is its reliability and build quality. Designed to withstand the rigors of daily use in demanding environments, this oscilloscope is robust, ensuring that it remains operational even in challenging conditions. The modularity of the device allows for easy upgrades, meaning it can evolve alongside technological advancements and changing user needs.

The combination of its advanced features, impressive performance specifications, and ease of use makes the Tektronix 1235 an indispensable tool for engineers and technicians alike. Whether for educational purposes or intricate electronic debugging, this oscilloscope provides unparalleled capabilities that empower users to handle modern electronic challenges with confidence. Its legacy continues to influence the design and functionality of oscilloscopes in the industry today.