Broken Keyboard I think its a casio any help?

I let one of my friends borrow my girlfriends keyboard i think its a casio and they accidentally plugged the wrong Power Supply in it no when you turn it on the screen just lights up and it makes a humming noise any ideas on whats wrong with it and how to fix it?

some things i found just browsing, maybe it can help.

“The most common parts that fail from supplying a 110V console with 240V are the main fuse and main filter capacitor/s. On the odd occasion, the varistor/s.
visually inspect to see if any components have cracked or burned. You also need to have a multimeter handy to measure some components.
No fuses?, sorry. What’s likely happened is the DC/DC Sub-Board is fried. Long story short, the wrong power supply was hooked up to my wife’s Compaq Presario 1693. 30 volts D.C. was fed to the laptop instead of 19 volts.Now the laptop will not turn on. The correct power supply works OK but the
laptop won’t turn on now.”

“it may not be recommended to self repair but I am not willing to put a whole lot of money into this olderunit. If it is possible to get to the fuse and replace myself ”
_________
What’s likely happened is the DC/DC Sub-Board is
fried.http://forums.macrumors.com/showthread.php?t=168360
_________
No signs of life

Diagnosis: If your laptop comes back to life and sticks in a battery backed crash the internal or external power supply may be faulty – check the obvious: a) fuse b) power lead c) ac adapter. I

Repair: Strip-down – diagnostic – component repair – dust – ‘Arctic Silver’ CPU cooler service – re-assembly – burn-in testing. Most repairs of this type are usually carried out at standard fixed price of about £75 plus not more than £7.50 for return postage. Most repairs are successful and it takes 2 to 3 working days from the time we receive your laptop.http://www.123webhost.net/Common-Laptop-Faults.84.0.html

Casio CTK-4000 Premium Keyboard Pack with Power Supply, Keyboard reviews

Casio 12 Character(s) – LCD – AC Supply Powered HR8TM $21.77 Casio 12 Character(s) – LCD – AC Supply Powered HR8TM

Casio QV-R100 $75.99 The Casio QV-R100 is a 14.1 megapixel digital camera with a CCD image sensor. Users can record clear wide-angle shots with the 27mm lens with 4x optical zoom. The rear side of the Casio QV-R100 camera is dominated by the 2.7 inch TFT LCD display. The new Casio QV-R100 digital camera is further equipped with a macro function and face detection. In addition to taking high-resolution pictures, the Casio QV-R100 camera can record videos at a resolution of 640×480 pixels. The Casio QV-R100 digital camera has a limited internal memory of 10.9MB but comes standard with memory card. For the energy supply a NP-80 Lithium Ion battery is used, which can take approximately 180 pictures per charge.

Casio Handheld Printing Calculator $15.99 1.6lps 12 Character – LCD Cost/Sell/Margin Calculation Tax Calculation Currency Exchange Calculation AC Supply Casio Casio Computer Co., Ltd HR8TM Handheld Printing Calculator Printing Calculator Single Color www.casio.com

Casio AD-5MR AC Adapter for Keyboards (Retail Clam Pack) $12 This high-quality power supply is designed specifically for your Casio keyboard. Casio AD5MR Adapter and Power Supply This AC adapter plugs you into endless hours of playing, not to mention save you a bundle on batteries. This high-quality power supply is designed specifically for your Casio keyboard.

Casio AD12ML AC Adapter $24 Casio AD12M AC Adapter Power Supply; Save your batteries for when you’re away from home! Extend your battery life by using this optional AC adapter while you are at home or near an electrical outlet. This updated version of the AD12 includes internal circuitry that blocks power use when the keyboard is off. These AC adapters plug you into endless hours of playing, not to mention save you a bundle on batteries. This high quality adapter is designed specifically for Casio keyboards. The Casio AD12M works with the following models: CTK711EX, CTK811EX, CTK800, PX100, PX110, PX120, PX200, PX300, PX310, PX320, PX400R, PX500L, PX555R, PX575CS, PX800, WK500, WK1250, WK1300, WK1350, WK1600, WK1630, WK1800, WK3000, WK3200, WK3300, WK3500, WK3700, WK3800 and WK8000

Casio Desktop Printing Calculator $23.99 1 lb 12 Character – LCD 12 Digit – Dual Color 2lps 8.63″ Length x 6.50″ Width x 2.13″ Depth Decimal Selector Item Counter Non-add Cost Sell Margin Tax Calculation Exchange Calculation Automatic Constants Independent Add Register Grand Total Sub-total MU/MD Feed Right Shift Key Round Off ADD Mode Cost Sell Margin Currency Exchange Desktop Printing Calculator AC Adapter Desktop printer offers a big easy-to-read display and a host of features including 2-color printing (red and black), all at an affordable price. Features include 2.0 lines per second, big display, right shift key and the adapter is included. AC Supply Casio Casio Computer Co., Ltd Desktop Printing Calculator HR100TMPLUS Printing Calculator www.casio.com

Casio Printing Calculator $53.99 Cost, Sell, Margin Calculation Tax Function Mark Up Mark Down 3 digit comma markers Decimal Selector Grand Total Independent Memory Subtotal Total Heavy-duty 12-digit calculator features a large, digitron display. Two-color ink ribbon printer prints 4.4 lines per second on 2-1/4″ plain paper. Functions include cost/sell/margin calculation, floating and fixed (0-6) decimal, item counter, independent memory, printing reference numbers, tax calculation, automatic constants, independent add register, grand total, MU/MD, right shift key for quick correction, round off, round up, cut off and ADD mode. AC operation. Standard 2-1/4″ paper included. Weighs 3.7 lb. AC Supply Casio Casio Computer Co., Ltd DR210TM Dual Color Printing Calculator www.casio.com

Casio DR-T220 Thermal Printing Calculator $78.99 1 Year Limited 12 Character – LED 3.70 lb 8.50″ x 13.75″ x 3.50″ 8lps Deletes mistakes Inserts a new number Input correction Repeat printing function Multi % Tax & Currency Exchange Round off Cut off Grand Total Thermal Printing calculator is super fast and super quiet, at 8 lines per second. This thermal printing calculator provides Check Cal (corrects, deletes mistakes and inserts a new number anytime), 12-digit display, four-key memory, percent, markup/markdown, 00 keys, input correction key, item count and average, date and time display and set, preset text printing, decimal system, constant calculation, total and grand total, repeat printing function. AC power. AC Supply Battery Casio Casio Computer Co., Ltd Clock DR-T220 DR-T220 Thermal Printing Calculator Date Printing Calculator Single Color Thermal www.casio.com

Casio Privia PX-130 – 88-Key Portable Digital Keyboard $499.99 Casio Privia PX-130 88-Key Digital Keyboard Features: 88 weighted, scaled hammer-action keys 128-note polyphony 16 tones (with layer and split) Reverb (4 types) Chorus (4 types) Brilliance (-3 to 0 to 3) Acoustic Resonance Layer (with variable balance) Built-in metronome Duet mode, for two simultaneous players 2 Track, 1 Song Recorder USB type B 2 headphone jacks Built-in 8W speakers Power supply

Casio Privia PX-330 – 88-Key Digital Keyboard $699.99 Casio Privia PX-330 88-Key Digital Keyboard Features: 128-note polyphony Reverb (4 types), Chorus (4 types), Brilliance (-3 to 0 to 3), Acoustic Resonance Built-in metronome 180 rhythms for built-in accompaniment Accepts SD memory up to 2GB MIDI In/Out 2 headphone jacks 2 1/4″ Line In (R, L/Mono) jacks Power supply

Casio Privia PX-130 Package – 88-Key Keyboard with CS-67 Stand $499.99 Casio Privia PX-130 88-Key Digital Keyboard Features: 88 weighted, scaled hammer-action keys 128-note polyphony 16 tones (with layer and split) Reverb (4 types) Chorus (4 types) Brilliance (-3 to 0 to 3) Acoustic Resonance Layer (with variable balance) Built-in metronome Duet mode, for two simultaneous players 2 Track, 1 Song Recorder USB type B 2 headphone jacks Built-in 8W speakers Power supply The CS-67 from Casio is a wooden keyboard stand designed to support the PX-130 and PX-330 digital pianos. The stand provides a stable and secure platform for the piano, bringing it to perfect playing height and making it feel more like a real piano than a portable instrument. It also provides an area for foot pedals to be installed. CASIO CS-67 Features: Wooden construction Sets keyboard at a perfect playing height

Casio Exilim EX-S880 (Screen) $14.99 Casio Exilim EX-S880 (Screen)

Casio Exilim EX-V7 (Screen) $14.99 Casio Exilim EX-V7 (Screen)

Casio Exilim EX-Z1000 (Screen) $14.99 Casio Exilim EX-Z1000 (Screen)

Casio Exilim EX-Z1050 (Screen) $14.99 Casio Exilim EX-Z1050 (Screen)

Casio Exilim EX-Z1200 (Screen) $14.99 Casio Exilim EX-Z1200 (Screen)

Casio Exilim EX-Z300 (Screen) $14.99 Casio Exilim EX-Z300 (Screen)

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Casio Exilim EX-Z75 (Screen) $14.99 Casio Exilim EX-Z75 (Screen)

Casio Exilim EX-Z750 (Screen) $14.99 Casio Exilim EX-Z750 (Screen)

Casio GzOne Boulder (Screen) $14.99 Casio GzOne Boulder (Screen)

Casio GzOne W42CA (Screen) $14.99 Casio GzOne W42CA (Screen)

Casio IT-70/700 (Screen) $14.99 Casio IT-70/700 (Screen)

Casio Tryx (Full Body) $24.99 Casio Tryx (Full Body)

Casio Tryx (Maximum) $24.99 Casio Tryx (Maximum)

Casio Tryx (Screen) $14.99 Casio Tryx (Screen)

Casio Waveceptor WVQ141DA-2AV (Screen) $9.99 Casio Waveceptor WVQ141DA-2AV (Screen)

Casio WL-S21H-1AV (Screen) $9.99 Casio WL-S21H-1AV (Screen)

Casio ws300 (Screen) $9.99 Casio ws300 (Screen)

Casio Databank 150 (Screen) $9.99 Casio Databank 150 (Screen)

Casio Exilim EX-G1 (Screen) $14.99 Casio Exilim EX-G1 (Screen)

Casio Exilim C721 (Screen) $14.99 Casio Exilim C721 (Screen)

Casio Exilim EX-FC100 (Screen) $14.99 Casio Exilim EX-FC100 (Screen)

Casio Exilim EX-S5 (Screen) $14.99 Casio Exilim EX-S5 (Screen)

Casio Exilim EX-S500 (Screen) $14.99 Casio Exilim EX-S500 (Screen)

OEM NP-60 Replacement for Casio $5.65 OEM NP-60 Replacement for Casio

Casio FRACTSCIENTIFIC FX55 $14.4 Casio FRACTSCIENTIFIC FX55

Casio Illuminator Watch A168W1 $24.57 Casio Illuminator Watch A168W1

Casio Solar, Battery JF120ECOSIH $20.7 Casio Solar, Battery JF120ECOSIH

Casio Scientific Calculator FX115MSPLUS $24.57 Casio Scientific Calculator FX115MSPLUS

Casio GRAPHING CALCULATOR FXCG10 $136.01 Casio GRAPHING CALCULATOR FXCG10

CASIO PRINTING HR100TM $26.53 CASIO PRINTING HR100TM

Casio (YK-CASE01) Projector YKCASE01 $46.13 Casio (YK-CASE01) Projector YKCASE01

Replacement Battery For Casio Np-20 $19.99 REPLACEMENT BATTERY FOR CASIO NP-20

Replacement Battery For Casio Np-40 $29.99 REPLACEMENT BATTERY FOR CASIO NP-40

Digital Camera Battery Casio $12.99 DIGITAL CAMERA BATTERY CASIO

Casio Privia PX-330 Package – 88-Key Keyboard with CS-67 Stand $699.99 Casio Privia PX-330 88-Key Digital Keyboard Features: 88 weighted, scaled hammer-action keys 128-note polyphony 250 tones (with layers and splits) Reverb (4 types), Chorus (4 types), Brilliance (-3 to 0 to 3), Acoustic Resonance Pitch bend wheel Built-in metronome Duet mode for two simultaneous players 180 rhythms for built-in accompaniment 16-track, 5 song recorder Accepts SD memory up to 2GB Pedals: damper, soft/sostenuto (switchable) MIDI In/Out USB type B 2 headphone jacks 2 1/4″ Line Out (R, L/Mono) jacks 2 1/4″ Line In (R, L/Mono) jacks Built-in 8W speakers Power supply The CS-67 from Casio is a wooden keyboard stand designed to support the PX-130 and PX-330 digital pianos.

Casio Xj-450 (Mount or Mount parts only, Projector/TV sold separately) $161.99 Casio Xj-450

OEM Casio NP-20 $4 This OEM Casio NP-20 replacemegt Battery is used for the Casio Digital Camera

Powersmart NP-70 CASIO $4.8 This Powersmart battery is replaced for CASIO NP-70

OEM Casio NP-40 $4 This OEM battery is replaced for Casio NP-40

Casio Privia PX-130 Travel Kit – Digital Keyboard with Bag $499.99 Casio Privia PX-130 88-Key Digital Keyboard Features: 88 weighted, scaled hammer-action keys 128-note polyphony 16 tones (with layer and split) Reverb (4 types) Chorus (4 types) Brilliance (-3 to 0 to 3) Acoustic Resonance Layer (with variable balance) Built-in metronome Duet mode, for two simultaneous players 2 Track, 1 Song Recorder USB type B 2 headphone jacks Built-in 8W speakers Power supply Protects as you carry from one gig to another / Works with models PX-100, PX-110, PX-120, PX-200, PX-300, PX-310, PX-320, PX-500L

Casio Privia PX-330 Travel Kit – Digital Keyboard with Bag $699.99 Casio Privia PX-330 88-Key Digital Keyboard Features: 88 weighted, scaled hammer-action keys 128-note polyphony 250 tones (with layers and splits) Reverb (4 types), Chorus (4 types), Brilliance (-3 to 0 to 3), Acoustic Resonance Pitch bend wheel Built-in metronome Duet mode for two simultaneous players 180 rhythms for built-in accompaniment 16-track, 5 song recorder Accepts SD memory up to 2GB Pedals: damper, soft/sostenuto (switchable) MIDI In/Out USB type B 2 headphone jacks 2 1/4″ Line Out (R, L/Mono) jacks 2 1/4″ Line In (R, L/Mono) jacks Built-in 8W speakers Power supply Protects as you carry from one gig to another / Works with models PX-100, PX-110, PX-120, PX-200, PX-300, PX-310, PX-320, PX-500L

Casio Exilim EX-S770 (Full Body) $19.99 Casio Exilim EX-S770 (Full Body)

Casio Exilim EX-Z300 (Full Body) $24.99 Casio Exilim EX-Z300 (Full Body)

Casio Exilim Pro EX-F1 (Screen) $14.99 Casio Exilim Pro EX-F1 (Screen)

Casio Exlilm EX Z200 (Screen) $14.99 Casio Exlilm EX Z200 (Screen)

Casio GzOne Boulder (Extended Battery) $14.99 Casio GzOne Boulder (Extended Battery)

Casio GzOne Boulder (Full Body) $24.99 Casio GzOne Boulder (Full Body)

Casio GzOne Type S (Screen) $14.99 Casio GzOne Type S (Screen)

Casio Pathfinder Triple Sensor (Screen) $9.99 Casio Pathfinder Triple Sensor (Screen)

Casio PAW 1400T 7V (Screen) $9.99 Casio PAW 1400T 7V (Screen)

Casio Exilim EX-G1 (Full Body) $24.99 Casio Exilim EX-G1 (Full Body)

Casio Exilim 930ca (Softbank) (Maximum) $24.99 Casio Exilim 930ca (Softbank) (Maximum)

Casio Exilim 930ca (Softbank) (Screen) $14.99 Casio Exilim 930ca (Softbank) (Screen)

Casio Exilim C721 (Full Body) $24.99 Casio Exilim C721 (Full Body)

Casio Exilim EX S10 (Screen) $14.99 Casio Exilim EX S10 (Screen)

Casio Exilim EX S600 (Screen) $14.99 Casio Exilim EX S600 (Screen)

Casio Exilim EX S770 (Screen) $14.99 Casio Exilim EX S770 (Screen)

Casio Exilim EX Z100 (Screen) $14.99 Casio Exilim EX Z100 (Screen)

Casio Exilim EX Z1080 (Screen) $14.99 Casio Exilim EX Z1080 (Screen)

Casio Exilim EX Z700 (Screen) $14.99 Casio Exilim EX Z700 (Screen)

Casio Exilim EX Z77 (Screen) $14.99 Casio Exilim EX Z77 (Screen)

Casio Exilim EX Z80 (Screen) $14.99 Casio Exilim EX Z80 (Screen)

Casio Exilim EX-S10 (Full Body) $24.99 Casio Exilim EX-S10 (Full Body)

Casio Exilim EX-S5 (Full Body) $24.99 Casio Exilim EX-S5 (Full Body)

Casio Faction Scientific-VA FX260SLRSCHLIH $15.1 Casio Faction Scientific-VA FX260SLRSCHLIH

Casio ELECTRO-LUMINISCENT Wrist Watch $23.39 Casio ELECTRO-LUMINISCENT Wrist Watch

Casio Solar Scientific Calcualtor FX260HA $17.46 Casio Solar Scientific Calcualtor FX260HA

Casio Water Resistant Watch LA11WB1 $18.65 Casio Water Resistant Watch LA11WB1

Casio 8 Character(s) MS80SSIH $14.63 Casio 8 Character(s) MS80SSIH

Casio 8 Character(s) MS80ECOSIH $14.63 Casio 8 Character(s) MS80ECOSIH

Casio 12 Character(s) DM1200MSSIH $21.77 Casio 12 Character(s) DM1200MSSIH

Casio Desktop Printing Calculator FR2650TM $45.45 Casio Desktop Printing Calculator FR2650TM

Casio FX-9750GII Graphing Calculator FX0750GIIWE $62.82 Casio FX-9750GII Graphing Calculator FX0750GIIWE

CASIO 3-LN DISPLAY SOLA MS300M $17.01 CASIO 3-LN DISPLAY SOLA MS300M