20 Most Recent JVC 10 Watt CD Boombox with AM/FM, Dual Cassette Boombox Questions & Answers

Setting the Clock
Before operating the unit any further, first set the clock built
in this unit.
• When the unit is turned on with CD or tuner selected, press
DISPLAY first to show the clock indication.
1 Press and hold PROGRAM/SET
for more than 2 seconds.
The hour digits start flashing on the
2 Press 4 or ¢ to adjust
the hour, then press
The minute digits start flashing on the
3 Press 4 or ¢ to adjust
the minute, then press

If there is a power failure
The clock loses the setting and is reset to “AM 12:00.” You need to
set the clock again. If the batteries are inserted in the unit, this has
no effect on the memory.
To show the clock when CD or tuner is selected
• Each time you press the button, the display changes the clock
indication and the normal indication alternately. (Operating the
unit while clock indication is displayed change the display to the
normal indication.)

JVC 10 Watt CD... | Answered on Feb 11, 2008

Could be an open fuse

JVC Audio... | Answered 18 hours ago

Find what's causing it to be in protect mode (often a component failure) and repair it.

JVC Audio... | Answered 3 days ago

Pressing the mute button again!

JVC Audio... | Answered on May 29, 2020

Type: auto reverse, double compact cassette deck

Track System: 4-track, 2-channel stereo

Tape Speed: 4.8 cm/s

Heads: 1 x record/playback, 1 x playback, 1 x erase

Motor: 1 x capstan, 1 x reel, 1 x mechanism

Tape Type: type I, CrO2, Metal

Noise Reduction: B, C

Headroom Extension: HX Pro

Frequency Response: 20Hz to 17kHz (Metal tape)

Signal to Noise Ratio: 73dB (dolby C)

Wow and Flutter: 0.08%

Total Harmonic Distortion: 0.8%

Input: 80mV (line)

Output: 300V (line)

Dimensions: 435 x 133 x 328mm

Weight: 4.9kg

JVC Audio... | Answered on May 01, 2020

It is a know issue and there are fixes. This is the reason. Go here and press CTRL+F and type in ' overload '


Do you have any 4 ohm speakers in the mix?

The 4 ohm speakers are causing the amp to go into and display OVERLOAD at higher volumes. Page 5 of your manual is poorly written, but clearly implies 8 ohms is the minimum impedance required for speakers connected to this JVC amp.


JVC Audio... | Answered on Apr 23, 2020

A fan is not running

JVC Audio... | Answered on Apr 06, 2020

It does have an aux input with two levels but this isn't suitable for a turntable.
A suitable input should have RIAA correction with a sensitivity of just a few millivolts for a magnetic cartridge.

Instruction manual can be found on the link below...


JVC Audio... | Answered on Apr 03, 2020

I searched jvc.com for your model CA-C77BK S/N and couldn't find it even in the archives.

It must be a discontinued unit.

Usually when this happens you have to take the unit apart to retrieve the cd.

I don't think it's worth fixing, as parts don't seem to be available or listed, not even the user's manual online at jvc.com.

However, I did find a link for the service manual for this vintage compact component system:

May I refer you to that manual to try to figure out how to fix this problem.

Unfortunately, it costs $33 for the manual. You'll have to decide if it is worth it to buy it.

Good luck to you in fixing this problem.

JVC Audio... | Answered on Feb 25, 2020

Unplug the unit from AC power for 30 minutes, and disconnect all of the speakers and other associated equipment. Upon plugging back in, press and hold the power button at the same time for 5-10 seconds to force a hard reset.

JVC Audio... | Answered on Feb 14, 2020

Hi hope this helps. ....cheers

JVC Audio... | Answered on Nov 26, 2019

Not finding what you are looking for?
JVC 10 Watt CD Boombox with AM/FM, Dual Cassette Boombox Logo

1 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

Top JVC Audio Players & Recorders Experts

Muntejaya Ginting
Muntejaya Ginting

Level 3 Expert

10422 Answers


Level 3 Expert

5700 Answers

The Knight
The Knight

Level 3 Expert

76396 Answers

Are you a JVC Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

JVC Audio Players & Recorders

  • JVC Audio Players & Recorders

Most Popular Question

dont know set time clock

  • Audio Players & Recorders