CV1835 Tin Tool for Antminer Control Board – Chip Replacement

CV1835 Tin Tool for Antminer Control Board CPU | Precision Solder Stencil Kit for CV1835 Chip Replacement

The CV1835 Tin Tool is a chip-level rework fixture for the CV1835 CPU on Antminer control boards. Built from a high-temperature-resistant composite + laser-cut steel mesh stencil — the composite survives repeated 220–250°C reflow cycles, and the laser-cut apertures hold zero-deformation alignment over many rework sessions. Anti-static construction prevents charge-buildup damage on the CV1835's sensitive logic during placement.

Critical workflow context: the CV1835 CPU is the brain of older Antminer control boards. When the CPU fails or oxidises, you have two repair paths — replace the entire control board (expensive) or reball + replace the CPU itself (cheap if you have the right tooling). This stencil is the right tooling. Pad-level precision that hand-tinning with an iron simply cannot match on the dense CV1835 footprint.

When You Need This Tin Tool

• Replacing a failed CV1835 CPU on an Antminer control board after diagnostics flag it dead.
• Re-tinning oxidised CV1835 pads — restore even pad geometry for the next reflow.
• Salvaging working CV1835 chips from a scrap control board for reuse on a recoverable one.
• Bench throughput improvement — consistency and speed over freehand soldering on the dense CV1835 pad array.

CV1835 Tin Tool Specifications

FAQ — CV1835 Tin Tool

Q: How do I confirm the CV1835 is the failed CPU vs the rest of the control board?
A: Symptom triage — Ethernet PHY responds but the SoC won't boot, serial console silent on debug header, or visible burn marks on the CV1835. For ambiguous cases, scope the CV1835's clock + reset pins and the CPU power rails. If the CPU is dead, this tin tool is the right kit for the replacement workflow.

Q: Hot air station profile for CV1835 reflow?
A: Bottom-side preheat 130–150°C (on a preheating table or with bottom-side IR), top-side hot air 320°C with flux paste, controlled ramp matching the solder paste manufacturer's profile. The aluminum-substrate Antminer control board pulls heat away fast — preheat the full board before applying top-side heat.

Q: How many cycles before the stencil needs replacing?
A: The composite material handles many reflow cycles. Clean with IPA after every cycle — dried solder paste in the apertures (not heat fatigue) is the real end-of-life trigger. Replace if apertures clog or the steel mesh deforms.

Q: Bulk pricing for repair benches?
A: Yes — email contact@lys-sz.com for set pricing on CV1835 tin tools.

Related products

• CVITEK CV1835 C88 Control Board (KS3 / X5 / S19)
• Whatsminer H3 BGA Reballing Kit (Allwinner H3 CPU)
• BM1485 Tin Fixture Kit (Antminer L3 series / L7)
• BY2020 Digital Pre-Heating Table

Antminer control board repair benches stocking CV1835 tin tools? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.