iFixit - Answers With Device "Alarm Clock"

Alarm Clock: How do you take a Braun Type 4742 AB 40 SL alarm clock apart?

Fri, 13 Feb 2026 15:01:47 -0700

I have an old Braun alarm clock. It's from some time in the 80's. I want to have a look inside it, but can't figure out how to open it. There are no visible screws, so I'm quite sure, it somehow snaps together. I, however, don't want to break it, by just randomly prying at the seams.
So, does anyone know how to open these clocks, without breaking them?

⟐ Commented February 13, 2026 at 15:01 MST

Tfa 60-2511: Time changes automatically with buzzing sou6

Sat, 07 Feb 2026 08:42:46 -0700

Why in my digital alarm clock time changes automatically with buzzing sound

⟐ Answered February 07, 2026 at 8:42 MST

Sony ICF-C1T: How can I manually set the time on it?

Fri, 21 Nov 2025 08:47:02 -0700

The time the clock shows is incorrect even though I try to find my Timezone which is Vancouver, it does not show the correct time, is there any way to manually set the time?

⟐ Commented November 21, 2025 at 8:47 MST

Alarm Clock: Why is my alarm clock screen displaying this code?

Sun, 21 Sep 2025 14:43:58 -0700

One morning it just displayed this on the screen and I have no idea why. Cam someone please see if they can help me get this sorted out. Thank you.

⟐ Commented September 21, 2025 at 14:43 MST

IKEA Digital Clock: How to set time

Sun, 07 Sep 2025 11:19:38 -0700

I m not able to change the time

⟐ Commented September 07, 2025 at 11:19 MST

Sony ICF-C1T: 12 hour format instead of the 24 hour?

Fri, 08 Aug 2025 03:11:40 -0700

Does this model come with the 12 hour format instead of the 24 hour.

⟐ Commented August 08, 2025 at 3:11 MST

LaCrosse Technology 5120 Weather Alarm Clock: How to remove screen

Mon, 21 Jul 2025 11:03:02 -0700

Display is broken

Sony ICF-C1T: 12:00 AM keeps flickering after battery drained and replaced

Fri, 18 Jul 2025 04:48:49 -0700

My alarm was showing low battery and it went dead for a couple of days. After I have replaced the batteries (tried many of them) it came back to life (radio works fine) but neither the clock or the alarm work. Whenever I plug it into the wall it starts flickering 12:00 AM and doesn't give me the options to set the time. Can anyone please help?

Thank you!

⟐ Commented July 18, 2025 at 4:48 MST

Alarm Clock: Can some help me to fix my Timex alarm clock model T 121

Sun, 29 Jun 2025 02:36:17 -0700

I have a Timex T121 clock i want to fix it need it's internal Circuit diagrame or. The

Main chip datasheet

Oregon Scientific RM329PU: How do I disassemble the Oregon Scientific RM329PU (setting time zone)

Mon, 07 Apr 2025 14:31:26 -0700

There are no physical buttons to set the time zone for the radio-controlled clock. As a result, the clock automatically sets itself to Germany's time zone (since it receives the DCF77 time signal from Frankfurt). While I can manually adjust the time, I would appreciate finding a way to set the time zone.

I find it hard to believe this product was designed exclusively for the German time zone. I suspect this function can be adjusted directly through the electronic board, but I'm hesitant to disassemble the clock. There are only two visible screws in the battery unit, and removing them hasn't made any difference. Are all the parts clipped or glued together? Any suggestions on how to open it or adjust the time zone would be greatly appreciated. Thank you.

⟐ Commented April 07, 2025 at 14:31 MST

Sony ICF-C1T: Transformer issue with the device for Sony ICF-C1T

Thu, 03 Apr 2025 02:07:37 -0700

I had purchased Sony ICF-C1T from USA. I plugged it into 230V socket in India. It fried the transformer. I don’t have any clue of the specifications of the transformer, and where I can buy it. Can anyone please help me?

⟐ Commented April 03, 2025 at 2:07 MST

Sony ICF-C1T: Buttons not reacting even after change of the battery

Wed, 02 Apr 2025 22:37:07 -0700

The display was there but the buttons were not working. I have unplugged, changed the battery but still nothing. It shows 1. 1. then 2103, then 0:00 and remains blinking. The buttons do not react.

⟐ Commented April 02, 2025 at 22:37 MST

Chumby One: set up and customize the alarm feature on my Chumby One

Thu, 13 Mar 2025 04:55:45 -0700

How do I set up and customize the alarm feature on my Chumby One to wake up to my favorite internet radio station

Sony ICF-C1T: ICF-C1 Clock runs fast

Wed, 12 Feb 2025 21:01:23 -0700

Hi everyone - my ICF-C1 clock radio runs fast, gaining about 1 minute and 20 seconds every month. I cannot locate a schematic for this clock radio, so I am unsure if I can modify an RC/crystal circuit to adjust the timing or whether this uses the 60hz mains frequency as a reference. Has anyone had any luck in locating a schematic diagram or in replacing a resistor or capacitor to have more accurate time? Technician with 30 years experience here, just looking for a diagram or helpful advice.

Thanks,

Rick

⟐ Commented February 12, 2025 at 21:01 MST

Sony Dream Machine ICF-C211: Radio will not turn off

Fri, 15 Nov 2024 12:01:30 -0700

I cannot turn off the radio. When I move the slider to the far left, to the off position, the radio remains on. Seems like the switch is broken. Is there an easy fix?

⟐ Commented November 15, 2024 at 12:01 MST

Alarm Clock: Why is my Phillips Clock Radio randomly scanning and turning on/off

Mon, 14 Oct 2024 08:38:21 -0700

I have a phillips clock radio 4000 series (tar4406yw) and after a few minutes from turning on it does this:

auto scanning for radio stations moving by itself
turning on alarm one and alarm two on the display
clock changing
writing something like BU2

What should i do? Thank you!!

⟐ Edited by author October 14, 2024 at 8:38 MST

Audiophase Dual-Alarm Clock Radio: Electrical Schematic/Chip Manuals for CR-96?

Fri, 21 Jun 2024 16:05:19 -0700

Anyone have the wiring schematic, or the manuals for both IC's on the board? Thanks!

⟐ Edited by author June 21, 2024 at 16:05 MST

LaCrosse Technology 5120 Weather Alarm Clock: How do I set the time? It's a lot confusing

Tue, 14 May 2024 07:47:33 -0700

Time setting

⟐ Answer edited May 14, 2024 at 7:47 MST

Alarm Clock: My Spartus alarm clock is displaying weird symbols.

Thu, 04 Apr 2024 10:24:09 -0700

Hello,

I've had a Spartus Digital Alarm Clock for a while, but it never worked. Whenever I plug it in, it just shows this:

But when I put in a 9-volt battery, it works, but runs 5 minutes fast.

Here's some things I've tried:

Opening up the unit to see if anything was wrong
Seeing if any contact points were not connecting correctly ( i ended up almost shorting the board because i used the metal end)
Checking for frayed wires
None of them resulted in my clock working. How can I fix this?

⟐ Commented April 04, 2024 at 10:24 MST

Alarm Clock: My Mainstays E187 alarm clock is frozen in time

Tue, 19 Mar 2024 15:08:10 -0700

The Mainstays alarm clock doesn't move time when set, I am not sure if a reset will work (I cannot find the button or manual for it) or if it is too broken to fix economically. Thanks in advance

⟐ Commented March 19, 2024 at 15:08 MST