Table of Contents
Understanding the Dahao Control Panel
If you run (or maintain) a multi-needle setup, you already know the “computer” is where productivity is won—or where a single wrong tap can create days of downtime. Whether you are operating a workhorse industrial unit or upgrading to a SEWTECH multi-needle machine for your growing business, the control panel is the brain of the operation.
In this short Dahao controller tutorial, the host demonstrates how to reach the protected menu called “7. SET MACHINE PARAS” from the main management screen using the button he calls the “Panja” (hand/claw icon), and what happens when the controller asks for a password.
However, accessing this menu is not just about pressing buttons; it is about understanding the responsibility that comes with it. This article rebuilds the video into a clean, repeatable workflow you can hand to an operator, plus the “why” behind the lock and the safety habits that prevent expensive mistakes. We will bridge the gap between "button pushing" and "experienced craftsmanship."

Identifying the “Panja” (Hand) Button
On the Dahao control panel shown in the video, the key entry point is the button with a hand/claw icon, referred to as “Panja” by the host. In the tutorial, it’s used as the main access button to open the management list.
Sensory Identification for Operators: Don't just tell your staff "it's the third button." Use sensory anchors:
- Visual: Look for the icon that resembles a hand or a claw, usually positioned on the right vertical array of keys.
- Tactile: On most Dahao membrane panels, these buttons have a distinct "click" feel (tactile dome) compared to the softer LCD touch screen. You should feel a physical snap when engaging it.
- Location: It is distinct from the embroidery start/stop buttons.
Practical identification tip (operator-friendly): If your shop has multiple Dahao panel layouts (as different machine brands often customize the skin), the function remains the same. It is the gateway to "Manual Operations" or "Management."


Navigating the Management Menu
After pressing the Panja/hand icon, the screen changes to a management list (the video shows an “Other Management” style list). The host notes you should see options such as “Set Design Paras” and “Frame to Point”—that’s your confirmation you’re in the correct menu layer.
This menu is your dashboard. It separates "Running the Design" from "Configuring the Machine."


Pro tip (shop-floor habit): Before you go deeper, pause and confirm the machine is not actively stitching. The video’s safety precheck is clear: ensure the machine is stopped before accessing system parameters. This is not just “good practice”—it reduces the chance of accidental key presses while the machine is in motion.
Warning: Mechanical Safety Hazard. Do not enter protected parameter menus while the machine is running a design or while the needle bar is reciprocating. Changing motion parameters (like "Frame Speed" or "Jump Solenoid Timing") while the pantograph is moving can cause the frame to crash into the needle, shattering the needle and potentially sending metal debris toward the operator's eyes. Stop the machine completely first.
How to Access Protected Settings
This section is the exact “button path” from the video, rewritten as a standard operating procedure (SOP) you can print. This procedure removes the cognitive load of remembering obscure keystrokes, allowing you to focus on the numbers.
Locating “Set Machine Paras”
Inside the management list, the host highlights option number 7: “Set Machine Paras.” This is the restricted system-configuration area.
Why is it restricted? Because this menu controls the physics of the machine—motor torque, timing angles, and sensor sensitivity. A mistake here isn't just a bad stitch; it can be a mechanical collision.


Using Numeric Shortcuts
The video shows two ways to reach option 7:
- Press “7” on the keypad to jump directly to the option (The "Pro" method).
- Or scroll using the arrow keys until you find it (The "Novice" method).
Then you confirm by pressing Enter (the host describes it as Enter/Set). Use the numeric shortcut to reduce wear on your arrow keys over time.


At this point, the controller displays a password prompt. This is the gatekeeper.

Watch out (common operator mistake): In Step 1 of the video, the host warns that people sometimes press navigation arrows instead of the Panja/menu button. In production, that mistake wastes time and increases “random tapping,” which is exactly how settings get changed accidentally. Train operators to: Panja first, then read the screen, then act.
Prep Checklist (Before You Touch Any Protected Menu)
Use this quick checklist every time—especially if you’re the “helpful person” called over when the operator is stuck.
- State Check: Machine is fully stopped (needle bar not moving; design not running).
- Route Check: You can clearly identify the Panja/Hand icon button vs. the arrow keys.
-
Exit Strategy: You know how to exit/back out without saving (usually the
ESCkey or pressing the Panja button again). - Data Safety: You have a pen/notepad (or phone notes) ready to record what you changed. Rule of thumb: If you don't write down the original number, you aren't allowed to change it.
- Hidden Consumables & Prep Checks: Confirm you have basic shop tools nearby—spare needles (Standard 75/11 Ballpoint for knits, Sharp for wovens), thread snips, a small brush for lint, and a flashlight. These aren’t used in the video, but in real life, you often discover a mechanical issue (like a birdnest in the hook) while chasing a “settings” issue.
If your shop is scaling, this is also where workflow tools matter. A stable setup around the machine reduces rushed handling and mistakes—think a dedicated hooping station area so operators aren’t juggling garments, frames, and the control panel in the same cramped spot.
Unlocking the Factory Password
The video demonstrates that after selecting “Set Machine Paras,” the Dahao controller asks for a password and the host enters the standard factory password using the numeric keypad. The input is masked (shown as characters/asterisks), and then he presses Enter to confirm.
Important boundary note: the source material marks the password value as “Protected” and also states the exact numeric sequence is entered quickly and may vary by version. So this guide will not guess a number. Instead, it focuses on the correct process and what to do if your machine doesn’t accept the code.
Enterting the Standard Code
Follow the video’s sequence:
- When the screen shows “PASSWORD:”, look for the cursor blinking.
- Use the number keys to enter the factory password. Listen for the distinct beep with each press to ensure the keystroke registered.
- The screen will show asterisks
to mask the code. - Press Enter to submit.



What to Do When Unlocked
When the password is accepted, the menu opens and you can see internal machine parameters. The video shows examples of items in the list such as Frame Curve Angle and T.B. Detect (Thread Break Detect).

From a technician’s perspective, this is the moment to slow down. Protected menus are usually locked for a reason: they contain values that can affect detection logic, motion limits, and how the machine responds to faults.
Best-practice workflow (generally used in factories):
- Record the original value: Before you change "Jump Speed" from 400 to 500, write down "Original: 400".
- One variable at a time: Never change three settings at once. If the machine behavior gets worse, you won't know which setting caused it.
- Test with a controlled run: stitch a straight line or a box on scrap fabric at moderate speed (600 SPM) to verify behavior before returning to production.
If you’re supporting multiple operators, consider making a “parameter change log” sheet taped to the back of the machine. It prevents the classic problem: Machine starts acting weird, nobody remembers what changed.
Setup Checklist (Safe Access + Safe Exit)
- Confirm you are in the correct menu: you selected 7. SET MACHINE PARAS and saw PASSWORD:.
- Enter password via keypad and press Enter.
- Visual Check: Screen displays a numbered list of technical settings (e.g., "XY Speed," "Trim Length").
- Action: Navigate deliberately. Do not scroll-and-tap randomly.
- Documentation: Write down any parameter you view or change.
-
Exit: Exit the menu carefully (usually
ESC) to ensure you don't accidentally save an unintended scroll change.
Why Access Machine Parameters?
The host’s demonstration is short: it proves you can unlock the menu and view the parameter list. In real shops, the reason people want this access usually falls into two buckets:
- You’re troubleshooting (something is stopping production, like false thread breaks).
- You’re optimizing (you want smoother running, fewer stops, better consistency).
Adjusting Speed and Tensions (What Operators Assume vs. What’s True)
Operators often assume “settings” will fix everything. They think, "If I change the tension parameter, the loops will go away."
The Harsh Truth: Machine parameters execute logic; they do not fix physics. If your thread path is dirty, your needle is burred, or your hooping is loose, no computer setting will save you.
In practice, many quality issues come from fundamental "Physical Instability":
- Hoop Burn: Caused by cranking the screw too tight on traditional hoops.
- Registration Loss: Caused by fabric slipping inside the rings.
- Flagging: The fabric bouncing up and down because it isn't taut.
Here’s the principle: if the fabric is moving in the hoop, the machine will “look” like it has a tension or timing problem even when it doesn’t. That’s why experienced shops treat hooping as a production system, not a casual step.
If your team is still fighting slow loading, hoop burn, or inconsistent clamping pressure, a tool upgrade path is often significantly more reliable than deep parameter edits:
- Scenario trigger: Operators take too long to hoop (over 60 seconds per garment), leave marks (hoop burn), or can’t clamp thick seams consistently.
- Judgment standard: If you see re-hooping happening, fabric shifting during stitches, or visible hoop marks after steaming, your bottleneck is mechanical handling—not the Dahao software.
-
Options (The Solution):
- Level 1 (Consumables): Switch to a high-quality Stabilizer (Cutaway for knits, Tearaway for steady wovens).
- Level 2 (Tooling): Upgrade to SEWTECH Magnetic Frames or general magnetic embroidery hoops. These use magnetic force to clamp instantly without "burn" and hold thick items (like Carhartt jackets) that standard hoops can't grip.
- Level 3 (Station): Pair them with a stable magnetic hooping station so the garment is supported while you load, ensuring perfect vertical alignment every time.
Warning: Magnetic Safety Alert. Modern magnetic hoops utilize N52 Neodymium magnets. They possess crushing force. They can pinch fingers severely (blood blister risk) if handled carelessly.
* Keep magnetic frames away from pacemakers and implanted medical devices (maintain 6-12 inch distance).
* Keep away from credit cards, phones, and hard drives.
* Handle with two hands and keep fingers clear of the "snap zone" when the ring closes.
Troubleshooting Machine Errors (Why the Menu Is Locked)
Manufacturers lock “Set Machine Paras” because accidental changes can create problems that look like mechanical failure. For example, changing the "Stop Position" angle might make the needle stop slightly down, causing the frame to hit the needle when it moves.
A safer mindset is:
- Use protected parameters only when you have a clear symptom (e.g., "Machine trims too short"), a clear hypothesis ("Trim Time parameter needs +5ms"), and a rollback plan ("Original value was 20").
- Otherwise, fix the upstream causes first (hooping stability, consumables, cleanliness, operator handling).
This is also where machine “sensory feedback” matters. Listen to your machine. If it suddenly sounds harsher, vibrates more, or feels like it’s laboring (a grinding sound), stop and inspect lubrication and belt tension before you chase settings. Many shops lose needles and damage goods because they keep running while “just checking one more menu.”
Primer
You’ll learn how to:
- Identify the Dahao Panja/Hand button used to open the management menu without looking at the manual.
- Navigate to 7. SET MACHINE PARAS and trigger the PASSWORD prompt efficiently.
- Confirm a successful unlock by recognizing the parameter list screen.
- Avoid the most common production-floor mistakes when entering protected menus.
This is aimed at operators and technicians working with commercial embroidery machines—especially multi-needle environments where downtime is expensive and efficiency is profit.
Prep
Even though the video is focused on the control panel, real-world success depends on prep. Use this section to prevent “I unlocked it… now what?” confusion.
Hidden Consumables & Prep Checks (What Pros Keep Within Arm’s Reach)
These items aren’t shown in the tutorial, but they’re the difference between a controlled adjustment and a chaotic one. Before you touch the screen, ensure you have:
- Spare Needles: Ensure you have the correct system (e.g., DBxK5) and size. A bent needle often mimics a "timing" issue.
- Thread Snips + Small Scissors: For clearing messy thread breaks before testing.
- Lint Brush + Compressed Air: Used carefully to clear sensors. Note: Do not blast air directly into the bobbin case area without a path for dust to escape, or you'll pack lint into the bearings.
- Flashlight/Headlamp: Critical for checking around the needle bar, hook area, and behind the thread tension knobs.
- Notebook: The "Parameter Log" to record your changes.
Why this matters: once you enter protected settings, you’re usually doing it because something is wrong. Many “settings problems” are actually lint buildup masking a sensor, a damaged needle, or inconsistent hooping pressure.
Prep Checklist (Operator + Technician)
- Power: Machine is powered on and panel is responsive.
- Motion: Machine is stopped (per video precheck).
- Cognitive Map: You can identify Panja/Hand icon and the numeric keypad.
- Baseline: You have a way to record original values.
- Clearance: Work area is clear—no heavy garment bulk (like a hoodie) pulling on the frame, which can cause false registration errors.
If your shop is doing repeat work, consider standardizing hoop loading. A consistent hooping process reduces the temptation to "fix it in settings." For high-volume jobs, multi hooping machine embroidery workflows benefit most when hooping is fast, repeatable, and operator-fatigue is minimized.
Setup
This is the exact setup path shown in the video, rewritten as a clean, step-by-step sequence.
Step-by-step (with Checkpoints and Expected Outcomes)
Step 1 — Access Main Menu
Actions (from the video):
- Stand in front of the control panel.
- Locate the button with the hand/claw icon (Panja) on the right side of the panel.
- Press it firmly once to open the “Other Management” list.
Checkpoint: You should see menu options like “Set Design Paras” and “Frame to Point.” If you see "Design List" or "Color Change," you pressed the wrong button. Press ESC and try again.
Expected outcome: The management menu is displayed.

Step 2 — Select Machine Parameters
Actions (from the video):
- Look for option 7: Set Machine Paras.
- Efficiency Move: Press 7 on the keypad to jump immediately to the line (or scroll down if you prefer).
- Press Enter/Set to confirm selection.
Checkpoint: The screen changes to a prompt reading “PASSWORD:”.
Expected outcome: Password prompt appears, waiting for input.
Step 3 — Enter Factory Password
Actions (from the video):
- Input the standard factory password using the number keys.
- Observe that the screen masks the input with
or similar characters. - Press Enter to confirm.
Checkpoint: The screen transitions to a detailed parameter list. The video shows items such as Frame Curve Angle and T.B. Detect. If it says "Password Error," re-enter slowly.
Expected outcome: Access is granted to internal machine parameters.
Setup Checklist (Do This Every Time)
- Button Logic: Panja/Hand icon opens the management list.
- Selection: Option 7 is selected and confirmed with Enter.
- Security: PASSWORD prompt appears before you type anything.
- Success: After submission, you see the parameter list (not the same menu you started from).
Operation
Once you’re inside “Set Machine Paras,” the “operation” is not about changing values quickly—it’s about controlling risk.
A Safe Way to Work Inside Protected Parameters
Because the video ends right after unlocking, here’s the professional method that prevents disasters (generally used across brands):
- Read-only first: Scroll and identify what’s available without changing anything.
- Baseline capture: Write down the current value of any parameter you plan to touch.
- Single-variable change: Adjust only one item.
- Controlled test run: Use a simple design (like the letter "H" or a test box) at slow speed before returning to full production.
Decision Tree: “Should I Change Settings—or Fix Hooping/Consumables First?”
Use this decision tree to avoid the most common trap: changing parameters to compensate for unstable hooping or poor prep.
1) Is the machine stopping due to a password/menu access issue?
- Yes: Follow the video path (Panja → option 7 → PASSWORD). If the password fails, assume it may be custom and escalate to the owner.
- No: Go to (2).
2) Is the defect visible on the fabric (shift, distortion, registration, puckering)?
-
Yes: Stop! This is usually physical. First check hooping stability and backing choice.
- Solution: If hooping is inconsistent, upgrade handling. Switch to SEWTECH Magnetic Hoops or generic machine embroidery hoops that clamp consistently.
- Upgrade: Move to a magnetic embroidery frame system for faster, repeatable loading without the "tug of war" of screw hoops.
- No: Go to (3).
3) Is the issue mechanical/sensory (new noise, grinding, needle breaks)?
- Yes: Stop and inspect! Check needle orientation, hook timing gap, and lint buildup. Do not "tune" protected parameters to mask a noise.
- No: Go to (4).
4) Are you scaling production and losing time on loading/unloading?
-
Yes: Focus on throughput tools such as a stable hooping workflow.
- Solution: For high volume, consider a productivity upgrade path that includes magnetic hoops and, when justified, higher-output multi-needle platforms like SEWTECH (often chosen for cost-effective scaling).
- No: Keep parameters unchanged unless you have a documented reason (e.g., technician instructed).
Operation Checklist (Inside the Menu)
- Discipline: Treat the menu as “read-only” unless you have a clear goal.
- Record: Record original values before any change.
- Isolation: Change one parameter at a time.
- Verification: Test on scrap fabric before running customer goods.
- Support: If unsure, stop and consult the machine manual or a qualified technician.
Quality Checks
The video’s success indicator is simple: the menu unlocks and the parameter list appears. In a shop, you also need quality checks that confirm you didn’t create a new problem.
Checkpoints After Accessing Protected Settings
- UI Checkpoint: You can exit back to the main operation screen without error prompts.
- Behavior Checkpoint: The machine "Homes" (centers the frame) normally without hitting limit switches or making grinding noises.
-
Production Checkpoint: Run a short test design. Look for:
- Tension: Is the white bobbin thread showing 1/3 in the center on the back?
- Trim: Is the tail length correct (usually 10-15mm)?
- Registration: Do outlines match the fill?
If your shop’s quality issues are recurring across operators, don't underestimate the impact of consistent hooping pressure. Many teams see immediate consistency gains when they standardize on hooping station for machine embroidery workflows and reduce “operator variability.”
Troubleshooting
The video shows a clean unlock. In real life, these are the problems that show up most often. Start with the "Low Cost" checks first.
Symptom → Likely Cause → Fix
1) Symptom: Panja button doesn’t open the management list
- Likely cause: Wrong button (pressed navigation arrows instead of menu), or operator is currently inside a different screen layer (like Color Change).
ESC to return to the main screen. Press the hand/claw icon again. Confirm you see the list with items like “Set Design Paras.”2) Symptom: You can’t find “7. Set Machine Paras”
- Likely cause: You’re in the wrong menu list (e.g., "Design Management" instead of "Machine Management").
3) Symptom: PASSWORD prompt appears, but the code doesn’t work
- Likely cause: Wrong sequence typed, key didn't register (didn't beep), or a custom password was set by a previous owner/technician.
4) Symptom: Menu unlocks, but machine behavior changes later (e.g., stops in wrong place)
- Likely cause: A parameter was changed unintentionally while scrolling.
Results
By following the video’s exact sequence—Panja/Hand icon → option 7 “Set Machine Paras” → PASSWORD prompt → keypad entry → Enter—you can access the protected Dahao machine-parameter menu and confirm success when the internal parameter list appears.
The professional takeaway is not “now change everything.” It is: unlock safely, document everything, and only adjust parameters with a clear purpose.
For many shops, the fastest path to better output is often upstream: consistent hooping, correct consumables, and workflow tools that reduce operator variability. When you’re ready to scale, magnetic hoops and a dedicated hooping workflow can deliver immediate time savings. If your single-head output is maximized and you are still turning away orders, upgrading to higher-output platforms like SEWTECH multi-needle machines is the logical next step to secure your business growth.
