BOSS TU-2 Service Manual

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TU-2	Oct. 1998	Oct. 1998

SERVICE NOTES

		First Edition
	Chromatic Tuner	Issued by RJA
SPECIFICATIONS /

●Reference Pitch .......................................	A4 = 438 to 445 Hz (1Hz step)
●Tuning Range ..........................................	C0(16.35Hz) to C8(4186Hz)
●Tuning Accuracy .....................................	+/-3cents
●Input Impedance ......................................	1M ohm
●Controls ...................................................	STREAM/CENT select switch, MODE select switch, Pedal switch
●Indicators .................................................	Meter, Note name/String number indicator, Tuning guide indicators,Check indicator
●Connectors ..............................................	Input jack, Output jack, Bypass jack, DC 9V In jack, DC 9V Out jack,
●Power Suppl ............................................	DC 9V : Dry battery S-006P/9V(6F22/9V), AC Adaptor(PSA-Series : Optional)
●Current Draw ...........................................	55mA(Max.)
●Dimensions ..............................................	70(W) × 125(D) × 55(H) mm / 2-3/4(W) × 4-15/16(D) x 2-3/16(H) inches
●Weight ......................................................	420g / 15oz (including battery)
●Accessories .............................................	Owner's Manual(English) (No. G6017441)
	Owner's Manual(Japanese) (No. G6017440)
	Dry battery S-006P/9V(6F22/9V)
●Options .....................................................	AC Adaptor PSA-100, PSA-120, PSA-230, PSA-240
	Parallel DC Cord PCS-20A

PANEL LAYOUT /

Hexagon Socket Head Cap Tapping Screw 3×12mm (H502984201)

PSA Caution (G2537401)

LED (Yellow) L-934SYC (F5029113)

LED (Red/Green) L-3WSRSGW-CC (F5029111)

Tact SW

SEQJAE (13129777)

Jack SG-7615 (13449105)

Jack SG-7713 (13449717)

Foot Base (2235730400)

AC Adapor Jack HEC2392-01-150 (13449717)

TU-2 Case (G2017127)

TU-2 Panel (G2217704)

LED (Red) L-934SRD-D (F5029112) TU-2 LED Holder (G219950101)

7Segment LED SA39-11HWA (F5029403)

Jack SG-7713 (13449717)

TU-2 Pedal (G2187515)

Cover (Bottom Cover) (2202785100) Bottom Base (2235730500) Bottom Caution PSA (G253751603)

Thumb Screw 3×10mm (Black) (40125101)

17059940

Printed in Japan ACE0 (DP) 1

A B C D E F G H I J K L M N O P Q R S T U V

EXPLODED VIEW /

Switch

JM-0404 (13129710)

Cushion (2226733300)

Nylon Washer 3×6×0.5 (×2) (40125134)

Binding Machine 3×10 FeBZC (×2) (40010267)

Battery Connector (2341070000)

Binding Tapping 3×6 B1 FeBZC (×4) (40010901)

Bottom Caution (G253751603)

Foot Base (2235730400)

Thumb Screw 3×10 (Black) (40125101)

Spring (2217710900)

Pedal Guide Bush (2215770201)

Insulation Spacer (2216756000)

Cover

(Bottom Cover) (2202785100)

Bottom Base (Base) (2235730500)

TU-2

Oct. 1998

TU-2 PARTS LIST/

SAFETY PRECAUTIONS:	CONSIDERATIONS ON PARTS ORDERING
The parts marked have safety-	When ordering any parts listen in the parts list, please specify the following items in the order sheet.
related characteristics.		QTY	PART NUMBER	DESCRIPTION	MODEL NUMBER
U s e o n l y l i s t e d p a r t s f o r	Ex.	10	22575241	Sharp key	C-20/50
replacement.		15	2247017300	Knob (orange)	DAC-15D
	Failure to completely fill the above items with correct number and description will result in delayed or even
	undelivered replacement.

	4

		10	22575241	Sharp key	C-20/50
		15	2247017300	Knob (orange)	DAC-15D

CPU PWB ASSY = CB LED PWB ASSY = LB MAIN PWB ASSY = MB

NOTE : The parts marked # are new (initial parts).

CASING /

#	G2017127	Case
#	G2187515	Pedal

#G2217704 Panel

2202785100 Cover(Bottom Cover)

2235730400	Foot Base
2235730500	Bottm Base

CHASSIS /

# G219950101 LED Holder LB

SWITCH /

13129710	JM-0404	Key SW	SW3 on LB
13129777	SKQJAE	Tact SW	SW1,2 on LB

JACK,SOCKET /

	13449104	SG-7713	Momo Jack	INPUT BYPASS
	13449105	SG-7615	Stereo Jack	OUTPUT
	13449717	HEC2392-01-150	AC Adaptor Jack	JK1,2 on MB
DISPLAY UNIT /
#	F5029403	SA39-11HWA	7 Segment LED	D25 on LB
PWB ASSY /
#	17048414	PWB ASSY

NOTE : Replancement PWB ASSY Includes MAIN BOARD,CPU BOARD and LED PWB ASSY

: PWB ASSY MAIN BOARD CPU BOARD LED PWB ASSY

#	01674889	M37531M4-605FP	Mask CPU	IC3 on CB
#	01676589	S-81250SGY	Voltage Regulator	IC1 on MB
#	********	HT24C02	2k EEPROM	IC4 on CB
	15189250	M5218AL	OP Amp	IC2 on MB

NOTE : Replacement EEPROM(IC4) should be made on a PWB ASSY. No replacement is available for individual parts.

Replacement is only by a PWB ASSY

: EEPROM(IC4)

TRANSISTOR /

	15119128	2SA1048GR	PNP Transistor	Q4 on MB
	15129144	2SC2458LGR	NPN Transistor	Q6,7 on MB
	15129185	2SC2458GR	NPN Transistor	Q1,2 ,3 on MB
	15139130	2SK184GR	FET	Q5 on MB
	15329528	RN2307	Digital Transistor	Q11 on CB
	151391160Y	2SK118Y	FET	Q8,9,10 on MB
DIODE /
#	F5029111	L-3WSRSGW-CC (Red/Green)	LED	D19 on LB
#	F5029112	L-934SRD-D (Red)	LED	D12,14-18,20-24 on LB
#	F5029113	L-934SYC (Yellow)	LED	D11,13 on LB
#	F5339121	RD5.1S B3	Zener Diode	D9 on CB
	15019126	1SS133	Diode	D4,5 ,6,7,8 on MB
	15339119T0	1SS352	Diode	D10 on CB
	F5019203	1N4004	Diode	D1,2 on MB
	F5339301	MTZ5.6C	Zener Diode	D3 on MB

CRYSTAL /

# G2389791 STF-39 8MHz Crystal X1 on LB

CONNECTOR /

#	01676590	IMSA-9230B-1-28Z001-T	CN1
#	01676601	IMSA-9230B-1-04Z001-T	CN2

WIRING, CABLE / ,

#	G3477140	Flat Cable 3P
#	G3477141	Flat Cable 4P

SCREWS /

#H502984201 3×12mm Hexagon Socket Head Cap Binding Tapping P FeB

	NOTE : When replace the above screw with unit having Serial Number AL70600 or earlier, please change all of the 4 screws at a same
	time. The shape of the head part is
	: AL70600
40010267	3×10mm Binding Machine FeBc
40010901	3×6mm Binding Tapping B1 FeBc
40011312	3×8mm Binding Tapping P ZC
40125101	3×10mm Thumb Screw
40125134	Nylon Washer 3×6×0.5

PACKING /

#	G2607207	PACKING CASE
	G2627738	INNER BOX	FOR BOSS COMPACT

MISCELLANEOUS /

#	G2537401	PSA Caution
	2215770201	Pedal Guide Bush
	2216756000	Insulation Spacer
	2217710900	Spring
	2226733300	Cushion
	2341070000	Battery Connector

#G253751603 Bottom Caution PSA (CE, C-tick) Gray

ACCESSORIES (Standard) /

#G6017441 Owner's Manual (English)

#G6017440 Owner's Manual (Japanese)

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Battery S-006P 9V

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