CASIO CTK220L Repair Manual

$7.99

CASIO CTK220L - It's a complete service manual, and it's in PDF format. It contains circuit diagrams ( schemas ) etc. It also usually contains parts catalog. After placing order we'll send You download instructions on Your email address. See below for delivery information

The manual is available only in language(s): English

Link to manual will be sent on Your email address after You place order.

This product was added to our catalog on Monday 07 May, 2007.

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francesco mayol - 02/11/2007

This is the best site to find what you need.I reccomand all thecnicia n to contact User-Manuals .

Roger Mason - 07/28/2006

Man, I was looking for this manual for a while! Where do You get them?;) Of course, quality is goooood:) Anyway, I can only say: A+A+A+!

Carl Conti - 08/03/2006

Thanks for manual for Luxman M02. I'll recomend this site to my friends for sure! Keep on the good work!

Othmar Herbst - 01/13/2008

PDF contains : - schematics, but a little un-sharp. - disassembly instructions, accurate drawings - description of test-modes

pascal grandjean - 11/02/2009

Excellent service. Service manuel conforme. C'est parfait. Merci!

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Click to see text excerpt from the manual

FILTER BLOCK
Since the sound signal from the CPU is a stepped waveform, the filter block is added to smooth the waveform.
Amp.
Filter Block
CPU

IC301Q305LSI1
POWER AMPLIFIER (IC301: LA4598)
The power amplifier is a two-channel amplifier with standby switch.
The following table shows the pin function of IC301.
Pin No.TerminalIn/OutFunction
1Power GNDIn Ground (0V) source
2Ch1 B.S.N Terminal for a bootstrap capacitor
3Ch1 OUTOut Channel 1 output
4VCCIn +9V source
5Ch1 N.F.In Negative feedback input
6Ch1 INIn Channel 1 input
7D.C.N Terminal for a decoupling capacitor
8Pre GNDIn Ground (0V) source
9Stand byIn Power control signal input. 0 V: Off, +9 V: On
10Ch2 INIn Channel 2 input
11Ch2 N.F.In Negative feedback input
12Ch2 OUTOut Channel 2 output
13Ch2 B.S.N Terminal for a bootstrap capacitor
14NCN Not used
LED DRIVING
7-segment LEDKeyboard LEDs
LVDD
La ~ LgLED
LX0 ~ LX7
Latch
MD0 ~ MD3
IC3
CPU
Q5 ~ Q8
(Segment)MWEB

LSI1

MSM6755B-13
LED
LY1 ~ LY7
MD4 ~ MD7

Latch

Q1 ~ Q4
MA0
IC2
Q2 ~ Q4
(Common)
LG
N 5 N