How much does DLP chip replacement cost in India?
Short answer: A refurbished 1080p DMD chip (Digital Micromirror Device — the projector’s core image chip) replacement costs ₹6,000–₹14,000 in India including labour and thermal re-paste. A new genuine 4K UHD DMD chip for brands like BenQ W5800 or Optoma UHZ65 costs ₹18,000–₹45,000. The ₹149 diagnosis visit includes signal path testing to rule out the cheaper faults before chip replacement is recommended.
What is a DMD chip and how does it fail?
The DMD (Digital Micromirror Device) is the heart of every DLP projector. It is a semiconductor chip with millions of individually hinged microscopic mirrors — each mirror is a single pixel — that tilt rapidly to reflect or block light as the colour wheel spins. Texas Instruments manufactures all DMD chips used in consumer and commercial projectors worldwide. The chip itself is highly reliable; the failure mode is almost always electrostatic discharge (ESD) damage, voltage spike from a power surge, or prolonged overheating from a clogged filter. Individual mirrors lock in the “on” or “off” position and present as stuck pixels in the projected image.
1080p vs 4K DMD: cost difference explained
1080p DMD chips (0.65”–0.95” chips)
The workhorse DMD chips used in most office, education, and home cinema 1080p projectors (BenQ W-series, Optoma HD-series, Sony VPL-HW-series DLP units, Acer H-series) use Texas Instruments 0.65” or 0.95” 1080p arrays. Refurbished pulls are available through the grey market at ₹4,500–₹10,000; adding labour and thermal interface material, the total bench cost is ₹6,000–₹14,000. Availability is generally good for projectors manufactured after 2015.
4K UHD DMD chips (0.66” 4K and above)
Texas Instruments’ 4K DMD chips use pixel-shifting technology — a 4K enhanced-XPR or full-native 4K mirror array — and are significantly more expensive. New chips for the BenQ W5800, Optoma UHZ65, and Sony VPL-VW-series cost ₹18,000–₹45,000 in India. For the Sony VPL-VW890ES (native SXRD, not DLP, but same cost class), panels run even higher. At these price points, the repair economics only work if the projector is valued above ₹80,000–₹1,20,000.
What to test before ordering a chip
A stuck pixel cluster can result from three different faults: a failed DMD chip, a failed LVDS cable (the flex ribbon connecting the mainboard to the DMD — a ₹800–₹2,500 fix), or a failed DMD driver IC on the main board (a ₹2,500–₹6,000 component-level repair). Any competent engineer tests the signal path with an oscilloscope or by substitution before ordering a chip. Never authorise a chip order without written confirmation of this step. Our DLP chip repair service always includes full signal-path testing as part of the ₹149 diagnosis. For context on adjacent costs, see the color wheel cost guide and the motherboard repair cost guide.
A note from the PRW Engineer Team
In our experience across 5k+ projector repairs, roughly 30% of projectors brought to us for “dead pixels” turn out to have a faulty LVDS cable, not a failed chip. The cable is a fraction of the chip cost. Always ask for the signal-path test result in writing before approving a chip order.