Replacement logic board for iPod 2G. It ties together power, storage, connection, display, audio, and controls, so use it after the easier connected parts, cables, and connectors have been checked.
Product Overview
This logic board listing covers Replacement Logic Board and its own connector path on the iPod 2nd Generation.
Use Part Details for the confirmed part-number reference. Use the Compatible Variants table below to confirm capacity, color, or order-number fitment.
Choose this part when your iPod shows folder icon or sad iPod icon; the checks below help confirm the right part before you order.
If known-good cable, power, storage/ribbon, connection, and restore or Disk Mode checks still fail, the logic board remains a suspect, especially when corrosion or board-side connector damage is visible.
What Is Included
Quick Diagnosis: Is It The Replacement Logic Board?
Start here before ordering. Work through the checks in order; a symptom alone does not prove this logic board is bad until nearby parts, cables, fitment, or install issues are separated.
Before you order this logic board
- Try a force restart first. Toggle Hold on and off, then hold Menu + Play/Pause for 6 to 10 seconds.
- Separate Hold and input behavior. Confirm Hold is off before judging the controls.
- Separate control symptoms. Separate center-button-only failure from a dead scroll ring or multiple failed buttons.
- Reseat and inspect the connector path. Inspect touch-wheel ribbon seating, latch position, and ground path after reassembly.
- Use this listing only after the checks still point here. If the symptom still points here after those checks, compare Compatible Variants before ordering this logic board.
Other Symptoms That May Involve This Part
| Commonly described as | What to check before ordering |
|---|---|
| Headphone audio still fails after headphone/hold checks | Use this as a board-level clue only after adjacent assemblies and ribbons have been checked. |
Specifications & Fitment
Part Details
| Detail | Value |
|---|---|
| Model Number | A1019 |
| EMC | EMC 1942 |
| Condition | Used — factory original Apple part. Normal cosmetic wear expected. |
| SoC | PortalPlayer PP5002 |
| CPU | ARM7TDMI, 90 MHz |
| RAM | 32 MB |
| Audio DAC | Wolfson WM8721 |
| LCD Controller | Renesas HD66753 |
| OEM Part | 820-1367-A |
Compatible Variants
| Order Number | Capacity | Color | Case | Compatible | Notes |
|---|---|---|---|---|---|
| M8737LL/A | 10GB | White | Thin / 0.72 in | Yes | — |
| M8740LL/A | 10GB | White | Thin / 0.72 in | Yes | — |
| M8738LL/A | 20GB | White | Thick / 0.78 in | Yes | — |
| M8741LL/A | 20GB | White | Thick / 0.78 in | Yes | — |
Failure Signs
Use these checks to decide whether this logic board is the right part, whether a nearby part should be checked first, or whether the symptom needs more diagnosis.
What you may see: The iPod appears locked or the Hold switch does not match the device behavior.
Check first: Confirm Hold is off before judging the controls.
- Separate center-button-only failure from a dead scroll ring or multiple failed buttons.
- Inspect touch-wheel ribbon seating, latch position, and ground path after reassembly.
- Check replaceable assemblies, connector seating, and recent repair disturbance before choosing the logic board.
Most likely cause: Touch-wheel assembly, button pad, or flex path.
- Replace the touch wheel when the assembly or flex remains damaged after seating checks.
Look elsewhere when: Check the headphone/hold assembly for confirmed Hold switch faults before blaming the touch wheel.
What you may see: People describe behavior where the logic board seems dead, intermittent, or only partly responsive.
- A part or control path is dead, intermittent, or only partly responsive.
Check first: Inspect nearby connectors and flex paths if the iPod has been opened.
Most likely cause: The logic board can be involved, but connector seating, adjacent cables, power state, or board-side paths can produce similar symptoms.
- Choose this logic board only when the failing behavior follows the part or its own connection path.
- Replace the logic board when inspection or repeat testing points to that assembly.
- Continue adjacent-part diagnosis when the symptom follows a connector, cable, or board path instead.
What you may see: People describe a new problem appearing immediately after battery, storage, display, audio, or control work.
- A new symptom appeared after battery, storage, audio, display, or control work.
Check first: Reopen only as far as needed to inspect the areas touched during the repair.
- Compare the new symptom with what worked before the repair.
- Check cable seating, latch position, and part variant before replacing a second part.
Most likely cause: A post-repair symptom can involve the logic board, but disturbed ribbons, latches, grounding, connector seating, or the wrong variant part are common checks before ordering again.
- Check post-repair regression, connector seating, and board-side damage before ordering.
- Choose this logic board only when the part itself was torn, creased, or damaged during service.
- Correct seating, latch, or variant problems first.
- Replace the logic board when the repair damaged that assembly or its flex path.
Look elsewhere when: Check the exact connector or assembly disturbed during the repair before treating the new part as failed.
What you may see: People describe a blank screen, white or black display, missing backlight, lines, or a display that changes after impact or repair.
- Blank screen, white or black display, missing backlight, or lines on the screen.
Check first: Confirm the iPod still plays, charges, or is recognized so the screen symptom can be separated from a dead device.
- Inspect the display ribbon and connector if the iPod has been opened or dropped.
- Look for cracks, liquid residue, display discoloration, or connector damage before ordering.
- Check the LCD panel, display ribbon, and connector seating before treating a display-only symptom as logic-board evidence.
Most likely cause: The logic board can be damaged, but display ribbon seating, connector condition, liquid history, or board-side display circuitry may need checking first.
- Display / Check backlight option, connector seating, and board-side damage before ordering.
- Choose this logic board only when the display symptom is tied to this part or its connection path.
- Replace the logic board when inspection or repeat testing points to this part's role in the display path.
- Use display-panel replacement when the panel, backlight, or display flex is visibly damaged; continue connector, liquid-damage, or board diagnosis when the display changes after reseating.
Look elsewhere when: Check ribbon seating, liquid history, and board connector damage before treating the display as a guaranteed fix. Check the screen and display-ribbon path first when the iPod still powers, plays, charges, or syncs.
What you may see: FireWire charging, FireWire recognition, sync, or port behavior is intermittent or missing.
Check first: Inspect for liquid, corrosion, residue, torn flex material, or connector damage.
Most likely cause: Check firewire power / sync option, connector seating, and board-side damage before ordering.
Look elsewhere when: Check the Replacement Battery (All Capacities) when power, charging, runtime, or swollen-battery behavior is the main problem.
- Check the Replacement Hard Drive (10GB) when storage symptoms such as clicking, sad ipod, folder icons, or restore failure are the main problem.
What you may see: Charging, FireWire connection, sync, or power behavior is intermittent or missing.
What you may see: People ask whether a similar-looking part from another capacity, case thickness, or generation will work.
- A similar-looking part may not match the exact capacity, case thickness, generation, or color.
Check first: Match the exact model, generation, capacity, and case style shown for the product.
- Do not use a symptom to override fitment: a wrong-variant part can create new symptoms after installation.
Most likely cause: The logic board may differ by model, case style, connector, cable length, bracket, or firmware/storage expectation.
- Check fitment / model variant boundary, connector seating, and board-side damage before ordering.
- This logic board may help only when it matches the model and variant being repaired.
- Use the logic board variant matched to the exact iPod.
- Recheck fitment before diagnosing a newly installed part as defective.
Look elsewhere when: Check fitment before replacing nearby parts or ordering another copy of the same wrong variant.
What you may see: Audio behaves differently through headphones and a headphone/hold assembly.
- Known-good headphones and headphone/hold ribbon checks do not clear the failure.
Check first: Test known-good headphones before opening the iPod.
- Test known-good headphones and reseat the headphone/hold ribbon before escalating.
- Inspect and reseat the headphone/hold ribbon or connector if the iPod was opened.
Most likely cause: Headphone jack contacts or headphone/hold assembly.
- Headphone/hold ribbon, connector seating, or board-side connector.
- Replace the headphone/hold assembly when the failure is isolated to the headphone path.
Look elsewhere when: If headphone audio after headphone/Hold checks fail, the jack alone is unlikely.
- Board-level audio diagnosis belongs after output-path and ribbon checks.
Cautions: Do not treat a broad no-audio symptom as proof that the headphone jack has failed.
- Keep this option as advanced or professional diagnosis unless replaceable parts have been ruled out.
What you may see: People describe symptoms that change after opening the iPod, reseating parts, or disturbing nearby flex cables.
- A symptom starts after opening the iPod or disturbing an internal flex cable.
Check first: Inspect the relevant ribbon and board connector before replacing the part.
- Look for lifted latches, bent contacts, debris, corrosion, creases, or torn flex material.
- Check whether the symptom changes after careful reseating.
Most likely cause: The logic board may be fine while its ribbon, connector, latch, or contact path is loose, dirty, damaged, or not fully seated.
- Connector seating, ribbon damage, or ground-path issues can involve this part, a nearby connector, or a board path.
- Choose this logic board only when the part's own flex or contact path is damaged.
- Reseat or clean only where the repair procedure supports it.
- Replace the logic board when the flex, connector tail, or assembly contact path is physically damaged.
Look elsewhere when: Check the board-side connector or adjacent cable first when the damage is not on the replaceable assembly.
What you may see: People describe short runtime, charging trouble, sudden shutoff, or an iPod that will not reliably power on.
- Short runtime, charging trouble, sudden shutoff, or a device that will not reliably power on.
Check first: Test with a known-good charger and cable before opening the iPod.
- Note whether the iPod shows charging, briefly powers on, shuts down under load, or never wakes at all.
- If the symptom began after service, inspect the battery connector and nearby flex paths before replacing another part.
Most likely cause: The logic board can be the cause, but FireWire power, storage, or board paths can create similar power behavior.
- Check power / charge / runtime option, connector seating, and board-side damage before ordering.
- Choose this logic board only when the power, charging, or runtime pattern is tied to this part or its connector path.
- Replace the logic board when inspection or repeat testing points to this part as the failing path.
- Keep FireWire-port, storage, and board diagnosis in scope when charging behavior is inconsistent or no power path is confirmed.
Look elsewhere when: Check FireWire charger/cable behavior, storage startup clues, and board damage when the symptom is not isolated to battery performance.
What you may see: People may see a sad iPod, folder icon, clicking drive, restore loop, or storage-recognition problem, especially after drive, flash, cable, or board work.
- Sad iPod, folder icon, clicking drive, restore loop, or disk-mode trouble.
Check first: Reseat the hard-drive or 50-pin storage ribbon at both the logic-board end and the drive or adapter end before considering a board replacement.
- Test with known-good storage and the correct cable or storage setup, then retry restore or disk mode when available.
- Inspect the board-side storage connector for torn pins, latch damage, corrosion, or impact damage only after the replaceable storage path has been checked.
Most likely cause: Most storage-warning symptoms start with the hard drive, hard-drive cable or 50-pin storage-ribbon seating, flash storage setup, formatting, or battery load before they point to the logic board.
- A logic board becomes a stronger suspect only when a known-good drive or adapter and known-good cable still fail, the board-side storage connector is damaged, or the symptom began immediately after a board swap.
- Check storage / restore option, connector seating, and board-side damage before ordering.
- This logic board may help only when the board-side storage connector or storage controller path remains suspect after known-good drive, cable, adapter, power, and restore checks.
- Replace the drive, drive cable, or storage device first when those checks isolate the storage path.
- Use logic-board replacement or board repair only when the board-side storage path remains the isolated failure after known-good storage and cable checks.
Look elsewhere when: Check the hard drive, hard-drive cable or 50-pin storage ribbon, storage device, formatting, and battery spin-up/load before treating sad iPod, folder, clicking, or restore symptoms as a board failure.
- Check the hard drive, hard-drive cable or connector ribbon, storage device, formatting, and battery spin-up/load before treating sad iPod, folder, clicking, or restore symptoms as a board failure.
What you may see: No sound from the headphone jack.
- Audio disappears while the iPod otherwise appears to run.
Symptom remains after basic checks
What you may see: The iPod still points back to Replacement Logic Board after cable seating, battery stability, and nearby connector checks.
Check first: Retest with known-good cables or adjacent parts where practical before ordering.
Check next: A nearby cable, connector, battery, storage device, display path, audio path, or board path can mimic a bad logic board.
Symptom changes when touched or reseated
What you may see: The symptom changes after moving the part, reseating a cable, or applying light pressure near the connector path.
Check first: Inspect the connector, latch, flex, solder joints, and nearby board area for damage or corrosion.
Check next: This can still be a connection issue rather than a failed logic board alone.
Problem began after another repair
What you may see: The issue started immediately after opening the iPod, replacing another part, or disturbing an internal cable.
Check first: Reopen only as far as needed and inspect the exact area touched during the previous repair.
Check next: Post-repair symptoms often trace to seating, latch, screw, or cable issues before Replacement Logic Board itself is confirmed bad.
Power, charging, or runtime symptoms
What you may see: People describe short runtime, charging trouble, sudden shutoff, or an iPod that will not reliably power on
Check first: Test with a known-good charger and cable before opening the iPod
- Note whether the iPod shows charging, briefly powers on, shuts down under load, or never wakes at all
- If the symptom began after service, inspect the battery connector and nearby flex paths before replacing another part
Logic Board symptoms to compare before ordering
What you may see: People describe behavior that can point toward the logic board, but the symptom does not prove this part has failed
Check first: Compare the exact behavior, when it started, and whether it changed after a repair
- Inspect nearby cables and connectors before replacing major parts
Storage warning symptoms usually start with drive or cable checks
What you may see: People may see a sad iPod, folder icon, clicking drive, restore loop, or storage-recognition problem, especially after drive, flash, cable, or board work
Check first: Reseat the hard-drive or 50-pin storage ribbon at both the logic-board end and the drive or adapter end before considering a board replacement
- Test with known-good storage and the correct cable or adapter setup, then retry restore or disk mode when available
- Inspect the board-side storage connector for torn pins, latch damage, corrosion, or impact damage only after the replaceable storage route has been checked
Logic Board appears unresponsive or intermittent
What you may see: People describe behavior where the logic board seems dead, intermittent, or only partly responsive
Check first: Check whether the symptom is repeatable or changes with movement, pressure, charging, reset, or reassembly
- Inspect nearby connectors and flex paths if the iPod has been opened
Symptoms changed after repair or reassembly
What you may see: People describe a new problem appearing immediately after battery, storage, display, audio, or control work
Check first: Reopen only as far as needed to inspect the areas touched during the repair
- Compare the new symptom with what worked before the repair
- Check cable seating, latch position, and part variant before replacing a second part
Fitment or model-variant mismatch
What you may see: People ask whether a similar-looking part from another capacity, case thickness, or generation will work
Check first: Match the exact model, generation, capacity, and case style shown for the product
- Do not use a symptom to override fitment: a wrong-variant part can create new symptoms after installation
Do Not Buy This Logic Board Yet If...
| Situation | Start here instead |
|---|---|
| Variant or capacity does not match this listing | This is a different model — check your order number and generation before ordering. |
| A replaceable attached-part path is isolated | Test the likely battery, storage, screen, audio, cable, or connector path first. |
| Recent service or connector disturbance is the main clue | Reopen carefully, reseat the part that was disturbed, and inspect its latch before buying a board. |
| You see a folder icon, clicking noise, or restore failure | Use the matching screen, storage, audio, or control part page before replacing the logic board. |
| The problem is the Hold switch or headphone jack, not this part | Start with the headphone jack / Hold switch assembly check. |
| Only the screen is affected and everything else works | Start with the screen, display ribbon, and backlight path before replacing the logic board. |
| Charging, swelling, runtime, or power is the primary problem | Start with the battery, FireWire cable, FireWire port, and power-connector checks before replacing the logic board. |
| Sound is the only problem | Start with the headphone jack / Hold switch assembly check after matching the exact symptom and part family. |
| Cable, computer, sync, or port behavior is the primary problem | Use the nearby battery, storage, screen, audio, cable, or connector listing that matches the symptom first. |
Install Overview
Before You Start
Turn Hold off, use the reset sequence for this generation, and confirm the model and variant before opening the iPod.
Treat case opening as the highest handling risk. Work around the seams gently and stop if the shell, clips, or internal stack resist.
Do not pull the halves apart or side-load board sockets. Reseat nearby ribbons and connectors before blaming a replacement logic board.
Test known-good replaceable assemblies first so the board is not blamed for a battery, storage, cable, control, screen, or audio path.
Repair steps
Documented repair-procedure steps for replacing the logic board on this model (from teardown guides; confirm against your unit before starting):
- Lift the battery up from the hard drive and lay it next the the iPod (it is still connected to the logic board).
Repair Guide
Repair guide summary: iPod 2nd Generation Logic Board Replacement.
Show all 20 installation steps
Confirm that the hold switch is locked before you open the iPod.
Opening this iPod may take a few tries, which is normal for this case design. Slide a plastic opening tool into the seam where the white front panel meets the metal rear case. After the tool is seated, run it along the seam to release the five retaining tabs.
Slide the opening tool around the case edge until the five tabs release.
Work around the corner of the iPod and release the two tabs near the FireWire port.
Release the five tabs along the opposite side. Gently rocking the front panel back and forth can help free them.
Raise the back panel away from the device, making sure it doesn't catch on the headphone jack.
Peel up and back the metallic tape attached to the battery top.
Raise the battery away from the hard drive and set it next to the iPod; it remains connected to the logic board.
Carefully detach the orange ribbon cable from the hard drive. In this step, if the cable doesn't come free easily, it may be useful to gently wiggle the cable from side to side. Raise the hard drive out of the iPod.
For the next step, shift the locking bar only about 2 mm. Too much force or travel will damage the connector. Pull the brown locking bar toward the hard drive cable with your fingertips to loosen the connector.
Move the hard drive cable out of its connector.
Raise the blue hard drive mounting bracket out of the iPod.
Carefully detach the white battery connector from the logic board. Pull only on the connector housing, not the cables.
As with the hard drive connector, move this connector only about 2 mm in the next step. Pushing too hard or too far will damage it. Pull the brown locking bar toward the side of the iPod with your fingertips to loosen the touch wheel connector.
Take out the 8 T6 Torx screws from the logic board.
Raise the logic board up enough to detach the orange touch wheel cable. Raise the logic board out of the iPod.
In this step, note the location of the four white plastic clips securing the display to the logic board. These clips must be released before the display can be removed.
With a spudger or fingertip, release the four white plastic tabs.
With a spudger, carefully detach the display ribbon cable from beneath the touch wheel. Raise the display off the logic board.
The logic board is the remaining assembly.
After This Repair
| Check | What to do |
|---|---|
| Run the full function check | Verify FireWire charging and sync, storage, display, audio, controls, and power before treating the repair as finished. |
| Still not working? | Go back through the connected battery, storage, display, FireWire, audio, and touch-wheel paths one at a time. |
Frequently Asked Questions
Use these questions to narrow the part path before ordering. They keep each answer focused on a different diagnostic or fitment decision.
What Replacement Logic Board models does this fit?
This Replacement Logic Board fits: M8737LL/A (10GB White), M8740LL/A (10GB White), M8738LL/A (20GB White), M8741LL/A (20GB White).
Do I need to solder?
No, this installation does not require soldering. Difficulty: Moderate. Estimated time: 45 minutes - 1 hour.
How do I know if this logic board needs replacement?
Symptoms that can point to this logic board include: folder icon, sad iPod icon. Check fitment, connectors, and nearby parts before treating symptoms as proof.
What else should I replace at the same time?
Logic board replacement often reveals battery issues — inspect during service. Display connector on the logic board should be inspected during replacement.
How should I use firewire sync or charge-path symptoms to choose this logic board?
Try known-good FireWire cables, charger, and host ports first. Inspect the FireWire port for debris, bent pins, corrosion, or looseness before board replacement. Choose this logic board only when the failure is isolated to the board path after external and replaceable-part checks. Check the nearby part path first when the symptom still fits a battery, storage, display, dock, headphone/hold, or touch-wheel assembly. Board-level rework and component diagnosis belong in advanced or professional repair context.
How do I confirm this is the right part for my iPod?
Use the Quick Buying Check, Failure Signs, and Do Not Buy sections together before ordering. The symptom should still point to this logic board after nearby parts and fitment are separated.
Why people land on this part
Use the checks above to separate this logic board from nearby parts before ordering.
Also searched as: dead logic board, no power logic board, won't turn on logic board, motherboard, A1019 logic board, A1019 motherboard, A1070 FireWire charger, Audio symptoms, charging indicator, corrosion on logic board, dead iPod, FireWire 400 6-pin iPod, iPod 2nd generation logic board replacement, 820-1367-A.
Worth Knowing
- PortalPlayer PP5002 — SoC — dual ARM7TDMI, 90 MHz.
- Wolfson WM8721 — Stereo 24-bit DAC with integrated headphone driver
- Renesas/Hitachi HD66753 — LCD controller/driver for monochrome display
- Unknown UP325385A4H — Battery cell identifier / OEM code
You May Also Want
Logic board replacement often reveals battery issues — inspect during service.
Related: Replacement LCD Screen (2" Monochrome)Display connector on the logic board should be inspected during replacement.
Related: Replacement Hard Drive (20GB)Use the highest-capacity compatible mechanical hard drive when increasing storage on this early FireWire-only model.
