FANUC A05B-2301 Series Teach Pendant Repair
Compact teach pendant series — covering multiple variants across the R-J3 and early R-30iA platforms
Repair for the Full A05B-2301 Range
The FANUC A05B-2301 series encompasses a range of compact teach pendant variants used across multiple FANUC controller generations. These pendants served as transitional models bridging the gap between FANUC's legacy R-J3 platform and the modern iPendant line, appearing in facilities running R-J3iB, R-J3iC, and select early R-30iA configurations.
Because the A05B-2301 series spans multiple hardware revisions, each variant has its own specific component set and failure characteristics. Our technicians are familiar with the full range and can identify the exact variant from the serial label to source the correct replacement components. This precision matters — using the wrong LCD panel or digitizer revision can cause compatibility issues.
We stock components for the most common A05B-2301 variants and can source parts for rarer sub-models. Every repair is tested on the matching controller type to ensure reliable operation in your specific robot cell.
Technical Specifications
| Part Number Range | A05B-2301-Cxxx (multiple variants) |
| Product Family | FANUC Compact Teach Pendant |
| Controllers | R-J3iB, R-J3iC, select R-30iA variants |
| Display | 6.4" – 8.4" Colour LCD (varies by variant) |
| Input Method | Resistive touchscreen + membrane keypad |
| Cable Connection | Teach pendant cable to controller cabinet |
| Generation | Mid-2000s to late 2000s |
| Status | Discontinued — repair only |
Common A05B-2301 Series Issues We Fix
Our technicians are experienced with the specific failure patterns of the Compact Teach Pendant series
Display Panel Failures
LCD degradation varies by variant — earlier A05B-2301 models use CCFL backlights that dim and fail, while later revisions use LED backlights with longer life but are still subject to panel degradation from heat and mechanical stress.
Touchscreen Dead Zones
The resistive touchscreen develops dead zones or inaccurate touch registration, particularly in areas used for jog controls and program editing. This is a wear issue that worsens progressively and cannot be resolved by recalibration alone.
Cable & Connector Wear
The teach pendant cable on A05B-2301 units is subject to constant flexing during robot operation. Internal wire breaks cause intermittent faults that can be difficult to diagnose — symptoms range from random disconnections to sporadic key and touch failures.
Board-Level Component Aging
Electrolytic capacitors on the main board dry out and lose capacitance after 15+ years, causing power regulation instability, boot failures, or erratic behaviour. These failures are repairable at the component level without replacing the entire board.
Our Repair Approach
We identify the exact A05B-2301 variant from the pendant's serial label and match components accordingly. Our repair covers LCD panel replacement (matched to the correct variant), touchscreen digitizer replacement, membrane keypad overlay replacement, cable and connector repair, and board-level capacitor and IC replacement. Testing is performed on the matching controller type.
A05B-2301 Series Repair Pricing
Every A05B-2301 Series repair starts with a free diagnostic assessment. We identify the exact fault and provide a transparent quote before any work begins — no surprises, no hidden fees.
Free Diagnostics
No charge for fault assessment
Fraction of OEM Price
Save vs. replacement unit
No Fix, No Fee
Only pay if we fix it
If we determine your A05B-2301 Series is beyond economic repair, we return it to you with a €100 analysis fee plus transport costs. You are never locked into a repair you don't approve.
Frequently Asked Questions — A05B-2301 Series
Which A05B-2301 variants do you repair?
We repair all common A05B-2301 series variants, including the C003, C005, C010, and other sub-models. If you are unsure of your exact variant, send us the full part number from the serial label on the back of the pendant and we can confirm coverage.
How do I identify which A05B-2301 variant I have?
The full part number is printed on the serial label on the rear of the pendant (e.g., A05B-2301-C003). The last four characters identify the specific variant and determine which controller and display configuration your unit uses. Share this with us when submitting a repair request.
Is the A05B-2301 series interchangeable with the iPendant?
No. A05B-2301 series pendants are not interchangeable with the iPendant (A05B-2518 series). They use different communication protocols and controller interfaces. If your robot runs an R-J3iB or R-J3iC controller, you need the correct A05B-2301 or A05B-2255/2256 variant — not an iPendant.
Get Your A05B-2301 Series Repaired
Register your Compact Teach Pendant today. Free diagnostics, transparent pricing, and fast turnaround — we'll get your robot cell back online.
We also repair teach pendants from other major brands