CDI Repair Services India
CDI (Capacitive Discharge Ignition) Corporation, founded in 1959, specializes in advanced ignition control systems and power electronics for industrial, marine, and aerospace applications. CDI's rugged ignition modules, solid-state controllers, and timing systems are trusted across Indian manufacturing plants, particularly in engine testing facilities, power generation backup systems, and precision automotive component manufacturing where reliable ignition timing is mission-critical.
CDI (Capacitive Discharge Ignition) Corporation, founded in 1959, specializes in advanced ignition control systems and power electronics for industrial, marine, and aerospace applications. CDI's rugged ignition modules, solid-state controllers, and timing systems are trusted across Indian manufacturing plants, particularly in engine testing facilities, power generation backup systems, and precision automotive component manufacturing where reliable ignition timing is mission-critical.
Synchronics Electronics has deep expertise repairing CDI ignition modules, capacitor banks, and timing control circuits across 180+ industrial repair engineers. We service the full CDI ignition product range—including their 6000 series ignition control modules, capacitive discharge units, and industrial timing controllers. Our technical team understands CDI's proprietary capacitor discharge architecture and common failure modes, delivering rapid turnaround repairs for Indian manufacturers relying on CDI for critical ignition sequencing.
CDI ignition module diagnostics, capacitor discharge circuit repair, and timing controller recalibration.
CDI Equipment We Repair — By Category
CDI Product Lines We Repair
Our engineers are trained on the full CDI product range. Below are the major product families we service.
CDI 6000 Series Ignition Control Modules
Solid-state ignition controllers for stationary engines, gensets, and precision timing applications. Common issues include capacitor degradation, timing drift under load, and SCR trigger circuit failure causing no-spark or intermittent ignition conditions.
CDI Capacitive Discharge Units (CDU)
High-voltage capacitor banks used in engine test cells and marine propulsion systems. Typical faults include capacitor leakage, voltage regulator burnout, and internal dielectric breakdown causing weak or delayed spark timing.
CDI Industrial Timing Controllers
Precision timing regulators for synchronized multi-cylinder firing and engine dynamometer control. Common failures: oscillator instability, analog reference circuit drift, and loss of external synchronization input causing timing variance and misfire.
CDI Power Supply Modules
Regulated DC power units for ignition module operation across temperature extremes and electrical noise environments. Typical repair needs: transformer winding insulation breakdown, rectifier diode failure, and feedback network degradation.
CDI SCR and Thyristor Switching Circuits
Silicon-controlled rectifier assemblies for high-current ignition switching in large stationary engines. Common faults: gate drive circuit failure, junction leakage under heat cycling, and snubber capacitor degradation reducing switching reliability.
Why Choose Synchronics for CDI Repairs?
PCB-Level Expertise
We repair down to the component level — not just swap boards. Our engineers identify root causes, replace failed IGBTs, capacitors, processors, and gate drivers on CDI equipment.
Fast Turnaround
Standard 7–10 working days. Express 3–5 days available for critical breakdowns. Emergency same-day/next-day service for unplanned downtime.
6-Month Warranty
Every repaired unit ships with a 6-month comprehensive warranty on parts and labour. Our repair success rate is over 94% across all brands.
All-India Service
Couriered repairs accepted from any city in India. Doorstep pickup available in Vadodara, Mumbai, Pune, Ahmedabad, Surat, Chennai, and more.
Common CDI Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in CDI equipment arriving at our workshop.
- ✓Complete ignition loss or weak spark output — Capacitor internal leakage or dielectric failure in CDI discharge units prevents voltage buildup, or primary winding insulation breakdown in the ignition transformer reduces coupling efficiency.
- ✓Timing drift or ignition advance variance under load — CDI oscillator frequency instability (typically caused by capacitor aging or resistor drift in the timing RC network) or loss of external synchronization signal feedback in industrial controllers causes timing to wander, reducing engine efficiency.
- ✓Intermittent ignition or cylinder misfires — Solder joint micro-fractures on PCB traces (especially around high-current SCR pads), thermally-induced delamination, or loose wire-wrap connections in older CDI modules cause intermittent continuity loss during engine vibration.
- ✓Voltage regulation failure or overvoltage shutdown — Zener diode leakage, feedback compensation network instability, or pass transistor base-emitter junction degradation in CDI power supply modules causes output voltage runaway or nuisance shutdown at idle.
- ✓Gate drive circuit failure in CDI SCR/thyristor modules — Isolation transformer winding breakdown or optocoupler LED degradation (common in high-temperature environments in Indian foundries and power plants) prevents gate signal from reaching SCR, blocking switching action.
- ✓Snubber circuit failure causing SCR dv/dt overstress — Snubber resistor opens or capacitor loses capacitance (especially in dusty Indian plant environments), removing damping for rapid voltage transients across the SCR during commutation.
How We Repair Your CDI Unit
Receive & Log
Your unit is logged into our tracking system with a unique job number. You receive WhatsApp / email updates at every stage.
Fault Diagnosis
Board-level diagnosis using oscilloscopes, LCR meters, and thermal cameras. Root cause identified before any repair begins.
Component Repair
Faulty ICs, capacitors, MOSFETs, IGBTs, and gate drivers replaced with genuine or equivalent-spec components.
Full-Load Test
Unit tested under rated load with original or equivalent motor. All parameters verified. 6-month warranty issued.
Industries Using CDI Equipment
We serve plant maintenance teams across all major industries where CDI automation is deployed.
Frequently Asked Questions — CDI Repairs
Do you repair CDI equipment anywhere in India?+
Yes. Synchronics repairs the complete CDI ignition and timing control product range across 180+ engineers in Vadodara, Gujarat. We offer PAN India door pickup from Mumbai, Delhi, Pune, Chennai, Hyderabad, Ahmedabad, Bengaluru, Kolkata, and all other major industrial centres. Equipment ships directly to our ISO-certified test facility with 2-3 day turnaround on most ignition module repairs.
What makes CDI ignition modules fail in Indian industrial environments?+
CDI ignition systems are exposed to extreme thermal cycling, voltage transients from inadequate genset filtering, and vibration in engine test cells and dynamometer labs. High ambient temperatures (45-50C+) accelerate capacitor ESR rise and electrolytic failure. Industrial electrical noise from VFDs and welding equipment induces gate drive noise. Synchronics engineers routinely address these failure modes by upgrading snubber circuits, improving PCB layout, and selecting temperature-hardened components.
How do you diagnose timing drift in CDI timing controllers?+
Synchronics uses precision function generators and frequency counters to measure CDI oscillator output against specification, typically 50 kHz base oscillator with adjustable divider ratios. We inject external synchronization signals and verify phase-lock response. Capacitor ESR and leakage current are measured on calibrated ESR meters; any capacitor exceeding 10% of specification is replaced. Timing accuracy is verified to within 0.5 degrees crankshaft position post-repair.
Can you repair older CDI 6000 series modules still in service at Indian genset manufacturers?+
Absolutely. Synchronics specializes in legacy CDI 6001, 6002, and 6003 module repairs. These 1970s-80s designs use discrete transistor oscillators and analog timing networks—our engineers routinely restore them to original factory specifications. We maintain stock of hard-to-source components (wire-wrap IC sockets, vintage capacitors, matched transistor pairs) and perform reverse-engineering if schematics are unavailable. Many Indian power backup systems rely on these proven modules, and we keep them running reliably.
What is your warranty on CDI ignition module repairs?+
Synchronics offers 12 months full parts and labour warranty on all CDI ignition system repairs, including capacitor discharge units, SCR switching modules, and timing controllers. If a repaired module fails within 12 months due to defective workmanship or component quality, we repair or replace it at no cost. We also provide on-site commissioning support at Indian manufacturing sites for high-value genset or engine test cell installations.
How do I send my CDI unit for repair?+
Pack the unit securely and courier it to our Vadodara workshop. Include a note with the fault description and your contact details. We will log it into our system and WhatsApp you a job number within 24 hours of receipt. Doorstep pickup is available in Vadodara, Ahmedabad, Surat, Mumbai, and Pune.
What is the cost of repairing a CDI drive or PLC?+
Repair cost depends on the model and the fault. We offer a free diagnosis — once we identify the fault, we provide a fixed quotation before proceeding. Typical repairs cost 20–40% of the new unit price. We will never repair without your approval.
What warranty do you provide on CDI repairs?+
All repaired units carry a 6-month comprehensive warranty covering the same fault and related issues. If the fault recurs within the warranty period, we repair it free of cost.
Do you provide a no-fix, no-fee guarantee?+
Yes. If we cannot repair your CDI unit after diagnosis, you pay only the diagnosis fee (₹500–₹1,500 depending on the product). The unit is returned to you at no additional charge.
CDI Repair Catalog
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Send us your faulty industrial electronics. Our engineers will diagnose it and provide a detailed quote within 24 hours — with no obligation to proceed.
Free Evaluation
No obligation
48hr Turnaround
Fastest in India
6-Month Warranty
Every repair
No Fix, No Charge
Zero risk policy
Pan-India Pickup
Doorstep service