24CR671N-2P - Desktop computer LG - Free user manual and instructions

Product Type	All-in-One Desktop Computer
Model Number	24CR671N-2P
Display Size	24 inches (diagonal)
Dimensions (W x H x D)	Approx. 540 x 400 x 200 mm
Weight	Approx. 5.0 kg
Power Supply	AC 100-240V, 50/60Hz, 19V DC output
Power Consumption (Max)	65 W
Operating System	Windows 11 (pre-installed)
Processor	Intel Core i5 (12th gen or similar)
Memory (RAM)	8 GB DDR4
Storage	256 GB SSD
Graphics	Integrated Intel UHD Graphics
Connectivity	Wi-Fi 6, Bluetooth 5.0, USB 3.0, HDMI
Main Functions	Home computing, web browsing, office applications, multimedia playback
Maintenance	Clean exterior with a soft dry cloth; avoid liquid contact; ensure proper ventilation
Safety Precautions	Use only provided power adapter; do not block air vents; keep away from water
Spare Parts & Repairability	Contact LG authorized service center for replacement parts; user-replaceable RAM and storage
General Information	Manufacturer: LG; Model year: 2023; Country of origin: China

Frequently Asked Questions - 24CR671N-2P LG

How do I set up my LG 24CR671N-2P for the first time?

Connect the power cable, press the power button, and follow the on-screen setup wizard to configure language, network, and user account.

Can I upgrade the RAM on this all-in-one?

Yes, the RAM is user-accessible. Remove the back cover to access the SO-DIMM slots. Refer to the manual for compatible RAM types.

How do I clean the screen?

Use a soft, lint-free microfiber cloth slightly dampened with water. Do not apply excessive pressure or use chemical cleaners.

Why is my computer running slow?

Try closing unused applications, check for malware, and ensure sufficient free disk space. Restart the device to clear temporary files.

How do I connect external devices like a monitor or printer?

Use the USB ports for peripherals and HDMI port for an external monitor. For printers, connect via USB or set up wireless printing.

What is the power consumption of this model?

Maximum power consumption is approximately 65 W. Typical usage consumes less.

How do I reset the computer to factory settings?

Go to Settings > Update & Security > Recovery and select 'Reset this PC'. Choose 'Remove everything' for a full reset.

Is the touchscreen supported?

This model does not include touchscreen functionality. It uses a standard non-touch display.

Where can I find the user manual?

The manual is available for download on the LG website or through the support section of this page.

What do I do if the computer won't turn on?

Check the power cable connection, ensure the outlet works, and press the power button for 10 seconds to perform a hard reset.

USER MANUAL 24CR671N-2P LG

LG Cloud Device SERVICE MANUAL

CHASSIS : LM22G

MODEL : 24CR670N-6N/ 24CR670N6P 24CR670NK6N/24CR670NK6P 24CR671N-2P/ 24CR671N-6P 24CR671NK6P

CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL71804641 (2311-REV01)

Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means), publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual. The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.

CONTENTS

CONTENTS 2

SAFETY PRECAUTIONS .... 3

SPECIFICATION 4

BLOCK DIAGRAM 7

EXPLODED VIEW 8

TROUBLE SHOOTING GUIDE ...... 9

DISASSEMBLE GUIDE ...... APPENDIX

SOFTWARE UPDATE GUIDE ...... APPENDIX

SAFETY PRECAUTIONS

IMPORTANT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by ⚠ in the Exploded View.

It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards.

Do not modify the original design without permission of manufacturer.

General Guidance

An isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks.

It will also protect the receiver and its components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation.

If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with the specified.

When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1 W), keep the resistor 10 mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Before returning the receiver to the customer,

always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be sure the set is safe to operate without damage of electrical shock.

Leakage Current Cold Check (Antenna Cold Check)

With the instrument AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on position, connect one lead of ohm-meter to the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed metallic parts such as antenna terminals, phone jacks, etc.

If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1 MΩ and 5.2 MΩ.

When the exposed metal has no return path to the chassis, the reading must be infinite.

Another abnormality exists that must be corrected before the receiver is returned to the customer.

Leakage Current Hot Check (See Figure below)

Plug the AC cord directly into the AC outlet.

Do not use a line isolation transformer during this check.

Connect a 1.5 kΩ / 10 W resistor in parallel with a 0.15 μF capacitor between a known good earth ground (water pipe, conduit, etc.) and the exposed metallic parts.

Measure the AC voltage across the resistor using an AC voltmeter with 1000 ohms/volt or more sensitivity.

Reverse the plug of the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 V RMS, which corresponds to 0.5 mA.

In case any measurement is out of the limits specified, there is a possibility of shock hazard, and the set must be checked and repaired before it is returned to the customer.

Leakage Current Hot Check circuit

When 25 A is impressed between Earth and 2nd Ground for 1 second, resistance must be less than 0.1 Ω.

*Based on adjustment standard

SPECIFICATIONS

NOTE: Specifications and other information are subject to change without notice for improvement.

1. General Specification

	Item Content Remark
1	Customer BRAND LGE Product
2	User Model Name 24CR67*
3	Sale region Worldwide
4	Feature 24"wide LCD Monitor with RFID Module, Webcam
5	Chassis Name LM22G PCB, Product spec., Adjust-				ment spec.
6	GeneralScope	External SW & Adj.	Tact Key (Menu, Left, Right, OK/Input ,Down, Up Power) 7 Tack Key
		Function OSD,	DDC2B, DDC2AB, HDCP, Control Lock, Wide/Original, Smart Energy Saving, Color Weakness, Black level, Reader mode, Flicker safe
7	Input HDMI IN 1ea
			DP OUT 1ea
			USB-C	1ea
			USB 2.0 2ea
			USB 3.1 4ea
			MIC/Audio Combo	1ea
			Ethernet 1ea(RJ45)
			SFP(Fiber)	1ea(Fiber Connection)
			WiFi+BT 1ea
			SOUND	1ea(3W Speaker x 2ea)
8	Power Cord		Length	1.5m ± 0.05m:
			Weight	0.20kg ± 10%,
			Color	BLACK
9	Power	Adapter	Input: 100-240 V ~ 50/60 Hz 1.5 A
			Output: 19V, 6.32A
10	Power Rating		Input: AC100~240V 50/60Hz, Output: 19V 6.32A

1. Engineering Specification

No.	Item	Spec			Remarks
1	Operating Frequency	HDMI	Horizontal	30 - 85kHz
			Vertical	56 - 75 Hz
2	Resolution	HDMI	Max.	1920x1080 @ 75Hz
			Recommend	1920x1080 @ 60Hz
3	Power Input Voltage	Voltage: AC 100 ~ 240Vac, 50-60Hz, 1.8A-0.7A

3. Signal Timing (Resolution)

3.1. Signal (Video & Sync)

• H/V Timing : HDMI

No.	Section Pol.	Dot Clock	[MHz]	Frequen-cy[kHz]/[Hz]	Total Cycle(E)	Dis-play(A)	FrontPorch(D)	Sync.(C)	BackPorch(B)	Resolution Remark
1	H(Pixels) - 25.175	31	469 800 640	16 96 48 640	x 480
	V(Lines)	-		59.94	525	480	10	2	33
2	H(Pixels)	-	31.5	37.5	840	640	16	64	120	640 x 480
	V(Lines)	-		75	500	480	1	3	16
3	H(Pixels)	-	28.321	31.468	900	720	18	108	54	720 x 400
	V(Lines)	+		70.08	449	400	12	2	35
4	H(Pixels)	+	27	31.47	848	720	16	62	50	720 x 480
	V(Lines)	+		59.94	528	480	9	9	30
5	H(Pixels)	+	40	37.879	1056	800	40	128	88	800 x 600
	V(Lines)	+		60.317	628	600	1	4	23
6	H(Pixels)	+	49.5	46.875	1056	800	16	80	160	800 x 600
	V(Lines)	+		75	625	600	1	3	21
7	H(Pixels)	-	65	48.363	1344	1024	24	136	160	1024 x 768
	V(Lines)	-		60	806	768	3	6	29
8	H(Pixels)	+	78.75	60.023	1312	1024	16	96	176	1024 x 768
	V(Lines)	+		75.029	800	768	1	3	28
9	H(Pixels)	+	108	67.5	1600	1152	64	128	256	1152 x 864
	V(Lines)	+		75	900	864	1	3	32
10	H(Pixels)	+	74.25	45	1650	1280	110	40	220	1280 x 720
	V(Lines)	+		60	750	720	5	5	20
11	H(Pixels)	-	83.5	49.702	1680	1280	72	128	200	1280 x 800
	V(Lines)	+		60	831	800	3	6	22
12	H(Pixels)	+	108	63.981	1688	1280	48	112	248	1280 x 1024
	V(Lines)	+		60.023	1066	1024	1	3	38
13	H(Pixels)	+	135	79.976	1688	1280	16	144	248	1280 x 1024
	V(Lines)	+		75.035	1066	1024	1	3	38
14	H(Pixels)	-	121.75	65.317	1864	1400	88	144	232	1400 x 1050
	V(Lines)	+		59.978	1089	1050	3	4	32
15	H(Pixels)	-	106.5	55.935	1904	1440	80	152	232	1440 x 900
	V(Lines)	+		59.887	934	900	3	6	25
16	H(Pixels)	+	108	60	1800	1600	24	80	96	1600 x 900
	V(Lines)	+		60	1000	900	1	3	96
17	H(Pixels)	-	146.25	65.29	2240	1680	104	176	280	1680 x 1050
	V(Lines)	+		59.954	1089	1050	3	6	30
18	H(Pixels)	+	148.5	67.5	2200	1920	88	44	148	1920 x 1080
	V(Lines)	+		60	1125	1080	4	5	36
19	H(Pixels)	+	174.5	83.89	2080	1920	48	32	80	1920 x 1080
	V(Lines)	+		74.97	1119	1080	3	5	31

3.2. Video input: HDMI

	Factory support mode (Preset Mode)	Horizontal frequency (KHz)	Vertical frequency (Hz)	HDMI
1 480P	31.5 60 O
2 576P	31.25 50 O
3 720P	37.5 50 O
4 720P	45 60 O
5 1080P	56.25 50 O
6 1080P	67.5 60 O			(Recommend Mode)

BLOCK DIAGRAM

EXPLODED VIEW

IMPORTANT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the EXPLODED VIEW.

It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards.

Do not modify the original design without permission of manufacturer.

TROUBLE SHOOTING GUIDE

First of all, Check whether there is SVC Bulletin in GSCS System for these model.

1. No Power On

Cold-Boot Power Sequence

1. No Screen On

3. No Video - HDMI

DISASSEMBLE GUIDE

Disassemble

1. Stand

1. Back Cover

1. Cable 4. Side USB

Disassemble

5. Webcam

6. Speaker

7. Rear Shield

8. Control

9. Module

Disassemble

1. W-LAN, Memory, SSD, Main Board

SOFTWARE UPDATE

SOFTWARE UPDATE

1. Subject: SW Upgrade Guide
2. Applied Model: xxCQ650 / xxCR650 / xxCR670
3. Check the BIOS Version

- Press the Power button and press the [F2] Key to enter the "Setup Menu" - Choose the "Main > System Information", it will show the below screen.

- Check the BIOS Version

1. How to upgrade the BIOS:

1) Run the "w.bat" file of shared BIOS flash files.

When run it, it will show the below-right screen, and then the set reboots automatically.

2) It will progress to upgrade the BIOS such as below screen, and then the set will reboot automatically.

Copyright © 2023 LG Electronics Inc. All rights reserved. Only training and service purposes.

SOFTWARE UPDATE

5. DMI String Update

- Use the same tool for updating the BIOS to update the DMI String. - Run the CMD as administrator in the folder of the BIOS Flash File.

Serial Number Update

- If you want to insert the Serial Number such as "1234567890", please refer to the below to update it. - In the CMD dialog, run [WinFlash64.exe /patch /dss "1234567890"]

Product Name Update

- If you want to insert the Product name such as "CQ600", please refer to the below to update it. - In the CMD dialog, run [WinFlash64.exe /patch /dps "CQ600"]

UUID Number Update

- If you want to insert the UUID, please refer to the below to update it. (UUID will be produced randomly.) - In the CMD dialog, run [WinFlash64.exe /patch /dus]

Serial Number / Product Name / UUID Number Update (at the same time)

- If you want to insert all items at the same time, please refer to the below to update it. - In the CMD dialog, run [WinFlash64.exe /patch /dus /dps "CQ600" /dss "1234567890"]

6. How to check the DMI Information

- Press the Power button

and press the [F2] Key to enter the "Setup Menu"

- Choose "main > System Information", it will show the screen below. - Check the changed DMI information.

SOFTWARE UPDATE

7. How to install the Windows image

STEP 1: Prepare a WinPE bootable USB and copy the Windows OS image to the USB. STEP 2: Apply the OS image.

1) Turn on the thin client and enter the boot device selection by pressing F10. 2) Boot from the bootable USB.

3) Go to the image directory and run the image write script file (e.g., cd CQ6_LG_IMAGE\24CQ650_19044IE_EN08\24CQ650_19044IE_EN08.bat)

SOFTWARE UPDATE

4) After installing the image, eject the boot USB first, and exit the console.

SOFTWARE UPDATE

5) The thin client will restart 2~3 times automatically (under 10 minutes) due to system configuration.

SOFTWARE UPDATE

8. How to check the windows image version

Execute LG Cloud Panel App on "Admin" account.

If you are "User" account, execute LG Cloud Panel App run as administrator (Password is "Admin")

SOFTWARE UPDATE

9. Firmware Version Check

-After power On, Change to HDMI Mode on the Input Menu -DC power off(by Power button) -Press the Power button and Menu Key at the same time during 3 sec -After Screen On, press the Menu Key to shows the OSD button

1. How to update the firmware:

1) Preparation the F/W : - 24CQ650_Realtek_RTD2536WEC_V310_0408 A0FE_Rev5155_220223.bin 2) Connect the Cable

3) Update F/W

- Method: Refer the attached file

Realtek ISP Guide

4) After update the F/W, It will do the Factory Reset

Connect the HDMI cable between HDMI port of Jig and HDMI port of monitor Connect the USB cable Between USB-B port of Jig And USB-A port of PC

LG

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