The manual for the CRT Adapter CR-28 provides detailed wiring schemes and specifications for assembly, including pin color codes and dimensions for proper setup. It also offers guidance on maintaining an up-to-date setup chart through a subscription service and includes contact information for B & K-Precision's factory service operations for troubleshooting and support.
Manual Overview
The Bk MANUAL provides detailed guidance for troubleshooting, diagnostics, and calibration of the CRT Adapter CR-28, which is compatible with B & K-Precision Models 467 and 470. The manual outlines the wiring scheme for assembly, specifying the pin configurations and color codes for proper connection. It highlights that there are no contacts at pin positions 3 and 13. The adapter fits CRT dimensions with specified measurements for pin circle diameter, post diameter, and keyway dimensions. For diagnostics, the manual notes that tubes marked with ## have interchanged Red and Blue guns, requiring testing with swapped controls. Calibration involves ensuring the correct tube heater voltage of 6.3V for various tube types. For ongoing updates, technicians are advised to subscribe to the B & K-Precision chart mailing service, which provides biannual updates on CRT types. For further assistance, contact information for B & K-Precision’s factory service operations is provided.
Quick Issues Covered
- Diagnose CRT adapter power-up failures in B&K models 467, 470.
- Identify error codes related to incorrect pin connections on CRT.
- Use schematics for circuit tracing and troubleshooting wiring issues.
Overview
The CRT Adapter CR-28 is designed for assembly with wires and is used with B & K-Precision Models 467 and 470. It includes a wiring scheme for connecting various colored wires to specific pin positions. The adapter fits CRT dimensions with specified measurements for pin circle diameter, post diameter, keyway width, and depth. It is compatible with several tube heater types, all operating at a voltage of 6.3. The manual suggests subscribing to the B & K-Precision chart mailing service for updates on CRT types.
Specifications
- CRT ADAPTER CR-28
- ASSEMBLY WITH WIRES —527-087-9-001 WIRING SCHEME
- PIN COLOR TACLE
- 1 BLK 12
- 2 keyway —
- 3 — ——
- 4 YEL/BLU N.C.
- 5 YEL/GRN 1
- 6 GRN 2
- 7 YEL/RED 4
- 8 RED 7
- 9 WHT 10
- 10 BRN 8
- 11 BLUE 6
- 12 WHT/RED N.C.
- 13 — —
- 14 keyway —
- NO CONTACTS AT PIN POSITIONS 3 AND 13.
- FITS CRT DIMENSIONS:
- A = pin circle diameter 15.24 mm/C.600" nom.
- B = post diameter 11.0 mm/0.433" max.
- C = keyway width 1.52 mm/0.060" nom.
- D = keyway width 1.27 mm/0.050" nom.
- E = keyway depth 5.99 mm/0.220" min.
- Used with B & K-Precision Models: 467, 470
- TUBE HEATER TYPE VOLTAGE
- 19VKY P22## 6.3
- 320BSB22 6.3
- 370ESB22 6.3
- 370FVB22 6.3
- 420 CUB22 6.3
- 510SJB22 6.3
- M 34JCJ03X 6.3
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
Refer to the PDF for details.
Operation
Refer to the PDF for details.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Refer to the PDF for details.
Download MANUAL Manual (PDF – 296.3 KB)
Bk-precision-cr-28-instruction manual: Guide for technicians to troubleshoot and calibrate the CR-28 model. File size: 296.3 KB.
- Brand: Bk-precision-cr-28-instruction
- Model: MANUAL
- Type: Manual
- File size: 296.3 KB
Overview
Brief overview of the product.
Specifications
- Key spec 1
- Key spec 2
Controls & Indicators
Control panel/button layout.
Installation / Setup
- Step 1…
- Step 2…
Operation
Basic usage, modes, cycles.
Troubleshooting & Error Codes
| Issue / Code | Fix |
|---|---|
| Example | How to fix… |
Safety & Warnings
- Important warning…
Downloads
Bk-precision-cr-28-instruction Manual Overview
The Bk-precision-cr-28 is a versatile and reliable piece of test equipment designed for precision electrical measurements and diagnostics. Ideal for both professional technicians and hobbyists, this device offers accurate readings and robust performance in a compact form factor. Whether you are troubleshooting circuits, verifying component values, or conducting routine maintenance, the Bk-precision-cr-28 provides dependable results to enhance your workflow.
Main Features and Specifications
- High-precision measurement capabilities for voltage, current, and resistance
- Clear digital display with backlight for easy reading in various lighting conditions
- Auto-ranging function to simplify operation and improve accuracy
- Durable casing designed to withstand daily use in demanding environments
- Low battery indicator to ensure uninterrupted operation
- Compact and lightweight design for portability
- Data hold function to freeze readings for convenient analysis
Basic Usage and Operation Tips
Before using the Bk-precision-cr-28, ensure the device is properly calibrated and the battery is fully charged. Connect the test leads securely to the appropriate input terminals. Select the desired measurement mode using the function dial, and apply the probes to the circuit or component under test. Use the data hold feature to capture stable readings when needed. Always start with the highest measurement range to prevent damage and then adjust downward for more precise readings.
Troubleshooting and Maintenance
If the device fails to power on, check the battery level and replace if necessary. Inaccurate readings may indicate worn test leads or the need for recalibration. Clean the device regularly with a soft, dry cloth and avoid exposure to moisture or extreme temperatures. Store the unit in a protective case when not in use to prevent damage. For persistent issues, consult the full manual or contact authorized service centers.
Safety Reminder
Always observe proper safety precautions when using the Bk-precision-cr-28. Avoid contact with live circuits beyond the device’s specified limits. Use insulated test leads and wear appropriate personal protective equipment. Disconnect power sources before testing components whenever possible to reduce the risk of electric shock or equipment damage. Follow all local electrical safety regulations and guidelines.