Casio Complete Guide to the CTK-401 Electronic Keyboard Parts and Specifications

Item	Code No.	Parts Name	Specification	Q	R
	Main PCB
1	6926 0200	PCB/ASS'Y (MA1M)	M240592*1	1	B
LSI1	2012 5603	LSI/MC (CPU)	MSM6755B-17	1	A
LSI2	2012 5611	LSI/MASK-ROM	UM23C2101M-7384/Q	1	A
LSI3	2012 5569	LSI/LCD DRIVER	SED1278F0A	1	A
IC1	2012 1883	IC/MOS (RESET IC)	RN5VD40AA-TR	1	B
Q1	2252 1239	TRANSISTOR	2SC4081T106Q	1	B
VR1	2775 3286	POTENTIOMETER	EVM3SSX50B53	1	B
X1	2590 2100	OSCILLATOR/CERAMIC	CSACS20.00MX040-TC	1	B
	Sub PCB
2	6926 0190	PCB/ASS'Y (MA2, 3M)	M140548*1	1	B
IC101	2114 5775	IC/LINEAR (POWER AMP.)	TA8248K	1	A
Q101	2250 0168	TRANSISTOR	2SA854SR-TP-T	1	A
Q102, Q104/105	2220 1409	TRANSISTOR	2SC1740SR-TP-T	3	A
Q103	2250 1585	TRANSISTOR	2SD1858TV2Q	1 A
D101	2390 1323	DIODE/SHOTTKY	RB100A-T32-T	1	C
D102	2390 3018	DIODE	1T2	1	C
D103	2390 1344	DIODE	1SS133T-77-T	11	C
D104	2360 2044	DIODE/ZENER	MTZJ6.2A-T77-T	1	A
D105	2360 1799	DIODE/ZENER	MTZJ5.1A-T77-T	1	A
LED101	2370 0112	LED	LN28RPX-(TT8)	1	C
J101	3501 7049	JACK (POWER)	HEC2305-01-330	1	B
J102	3612 0665	JACK (PHONE)	YKB21-5006	1	B
	Keyboard PCBs
3	6926 0180	PCB/ASS'Y	M140449*3	1	C
D701 - D749	2301 0101	DIODE	1S2473T-77-T	49	B
	Mechanical Parts
4	3831 0770	SPEAKER	S10JA13A	1	B
5	3335 6556	LCD	LD-B10023A	1	B
6	6926 0270	RUBBER/INTERCONNECTOR	M440435-2	2	C
7	6909 5890	SWITCH/SLIDE KONB	CSB-12D	1	B
8	6921 5031	KNOB	M311859-1	1	B
9	6926 0280	RUBBER/BUTTON	M240587-1	1	B
10	6926 0290	RUBBER/BUTTON	M240588-1	1	B
11	6926 0300	RUBBER/BUTTON	M240589-1	1	B
12	6926 0310	RUBBER/BUTTON	M240590-1	1	B
13	6922 2720	KEY SET/LT WHITE	M312118*1	3	A
14	6922 2730	KEY SET/LT WHITE	M312118*2	1	A
15	6922 2740	KEY SET/LT BLACK 10P	M111726-1	2	A
16	6922 4000	RUBBER/CONTACT	M111765-1	1	A
17	6923 2390	RUBBER/CONTACT	M240025-1	1	A
18	6926 0320	PANEL/DISPLAY	M340608-1	1	C
19	6926 0020	COVER/BATTERY	M340528*2	1	B
	Accessory
	6906 8752	STAND/NOTE	M340629B*2	1	B

Notes: Q – Quantity per unit

R – Rank

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