iFixit - Answers With Device "Sony ICF-C1T"

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

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

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: 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

Sony ICF-C1T: Why doesn't my clock keep the correct time?

Tue, 08 Sep 2015 17:07:35 -0700

When the power goes out, or when clock is unplugged while moving its location, the clock does not keep the correct time.

⟐ Answered September 08, 2015 at 17:07 MST

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 ICF-C1T: How do I dim my clocks brightness?

Fri, 17 Apr 2020 15:41:41 -0700

The clock is to bright for me to sleep, it lights up the entire room. I like to sleep in a somewhat dark room. Help.

⟐ Answered April 17, 2020 at 15:41 MST

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

Sony ICF-C1T: unable to adjust to the correct time.

Wed, 22 Mar 2023 11:38:55 -0700

Ever since Daylight Savings Time took effect 3/12/23, I have been unable to adjust my clock radio to the correct time. I am in Eastern US Time zone. I have it set at "2" for that time zone and it has the time two hours earlier than it should be. This product is not very user friendly. Can you help me?

⟐ Answered March 22, 2023 at 11:38 MST

Sony ICF-C1T: Sony ICF-C1PJ Projector has stopped working

Fri, 22 Dec 2023 07:19:53 -0700

The projector from the clock radio suddenly stopped working. I changed the battery just to see if that helped, but it did nothing. Any ideas?

⟐ Edited December 22, 2023 at 7:19 MST

Sony ICF-C1T: Why is my clock/radio not getting good reception?

Tue, 05 Jan 2021 11:52:58 -0700

The radio is emitting a buzzing sound when the device is turned on to an FM radio station.

⟐ Answered January 05, 2021 at 11:52 MST

Sony ICF-C1T: Why does my Sony ICFC1 clock flash "OFF" on display & not keep time?

Wed, 24 Jun 2020 18:22:28 -0700

My Sony ICFC1 alarm clock has been continuously flashing between the time and "OFF" on the display. Also, the buttons on the back to set time do not correspond with one another.

why would my clock flash this way, also flashes cycle of date as if setting time and has been keeping incorrect time.

⟐ Commented June 24, 2020 at 18:22 MST

Sony ICF-C1T: Why can I no longer set the alarm time?

Thu, 04 Oct 2018 19:09:15 -0700

At first, the clock numbers were scrolling fast when I entered the room, beeping when it got to the set alarm time, and continued on. My son unplugged the clock and it again scrolled fast. Unplugged and plugged in again, and this time, the time appeared, but I can no longer set the alarm time.

⟐ Answer edited October 04, 2018 at 19:09 MST

Sony ICF-C1T: Why is the clock rolling through time and making beeping sounds

Wed, 23 Aug 2017 04:52:00 -0700

I plugged it in with a new battery, a few hrs later it makes one beep every 12 seconds while scrolling through the hours at a high rate of speed.

⟐ Answer accepted August 23, 2017 at 4:52 MST

Sony ICF-C1T: My alarm clock makes a loud humming sound intermittently

Mon, 13 Mar 2023 09:29:53 -0700

Why does the alarm clock make a loud humming sound intermittently?

Sony ICF-C1T: How can I prevent my satellite clock from gaining?

Tue, 06 Apr 2021 00:47:56 -0700

My Sony Cube clock radio is supposedly satellite controlled, but it is slowly gaining and it is now approximately 20 minutes fast. It’s a lot of hassle to reset the time - and date, for it to recognise spring and autumn hour changes - so I am looking for a way to prevent its constant gain. It replaces a similar model which had the same problem. Is there any model which would not have this problem?

Sony ICF-C1T: How to reset the time. It runs slow.

Sat, 02 May 2020 10:03:55 -0700

It automatically resets, but it runs 10 minutes slow.

Sony ICF-C1T: No sound at all.

Sun, 18 Aug 2019 14:33:50 -0700

No sound comes out of the clock at all at any volume setting. The alarm goes off? Nothing. Radio? Nothing. Even at medium volume levels nothing happens. I just got the clock.

Sony ICF-C1T: Transformador do modelo ICF-C1T? / ICF-C1T transformer model?

Tue, 16 Apr 2019 01:40:29 -0700

Qual a especificação técnica do transformador, entrada e saída de Tensão?

Google translate:

What is the technical specification of the transformer, input and output voltage?

⟐ Edited April 16, 2019 at 1:40 MST

Sony ICF-C1T: The projector on my Sony alarm clock keeps shutting off

Mon, 03 Apr 2017 21:24:36 -0700

The projector on my Sony alarm clock keeps shutting off. How do I fix it?