Yamaha DS60-112 User Manual
DS60-112
POWERED SPEAKER
SERVICE MANUAL
This document is printed on chlorine free (ECF) paper with soy ink.
011598
GA
20011001-39800
CONTENTS
SPECIFICATIONS ................................................... 3
PANEL LAYOUT .................................... 4
BLOCK DIAGRAM
CIRCUIT BOARD LAYOUT ................. 5
WIRING ..................................................................... 5
DISASSEMBLY PROCEDURE .............................. 6
IC BLOCK DIAGRAM ..................................... 7
CIRCUIT BOARDS .......................................... 8
IDLING ADJUSTMENT ........................ 10
OVERALL CIRCUIT DIAGRAM
PARTS LIST
1.507K-844 Printed in Japan 2001.9
............................ 4
HAMAMATSU, JAPAN
1
IMPORTANT NOTICE
This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed
that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have therefore not been restated.
WARNING : Failure to follow appropriate service and safety procedures when servicing this product may result in per-
IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certifi-
The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and
service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable
and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to
exist, please contact the distributor’s Service Division.
WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have
IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power
sonal injury, destruction of expensive components and failure of the product to perform as specified. For
these reasons, we advise all Yamaha product owners that all service required should be performed by an
authorized Yamaha Retailer or the appointed service representative.
cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of
any form.
accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to
this bus.)
to the unit.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly
other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT
SO EVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose
eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling
food.
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
WARNING: THIS APPARA TUS MUST BE EARTHED
IMPORTANT. The wires in this mains lead are coloured in
accordance with the following code:
GREEN-AND-YELLOW : EARTH
BLUE : NEUTRAL
BROWN : LIVE
As the colours of the wires in the mains lead of this apparatus may not
correspond with the coloured markings identifying the terminals in your
plug proceed as follows:
The wire which is coloured GREEN-and-YELLOW must be connected
to the terminal in the plug which is marked by the letter E or by the
safety earth symbol or colored GREEN or GREEN-and-YELLOW.
The wire which is coloured BLUE must be connected to the terminal
which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal
which is marked with the letter L or coloured RED.
WARNING
Components having special characteristics are marked and must be replaced with parts having specification equal to those
originally installed.
2
SPECIFICATIONS
Output Power 60 Wrms
Speaker 30 cm x 1 (Celestion SEVENTY 80)
Controller/Switch VOLUME, TREBLE, MIDDLE, BASS, EQ ON/OFF, POWER
Connection Jacks INPUT : Standard Phone Mono Jack
SLAVE OUT : Standard Phone Mono Jack
Input Level/Impedance INPUT : 0 dBm / 100 kΩ
Output Level/Impedance SLAVE OUT : 0 dBm / 1 kΩ
Power Requirements U.S. and Canadian models : 120 V, 60 Hz
General model : 230 V, 50 Hz
Power Consumption 70 W
Dimensions (W x H x D) 513 x 491 x 291 mm (20.2” x 19.3” x 101.5”)
Weight 16.0 kg (35 lbs 4 oz)
DS60-112
3
PANEL LAYOUT
Control Panel
q w e r t y
q INPUT Jack (INPUT)
w Volume Control (VOLUME)
e Equalizer Switch (EQ ON/OFF)
r Equalizer Controls (TREBLE, MIDDLE, BASS)
t Expansion Output Jack (SLAVE OUT)
y Power Switch & Lamp (POWER)
BLOCK DIAGRAM
INPUT
IC1 1/2
31
MAIN
IC1 1/2, IC2
ACTIVE TYPE
TONE CONTROL
BASS MID TREBLE
EQ OFF-ON
VOLUME
SLAVE
OUT
POWER AMP
MUTE
TR1, 2, 3
POWER SUPPLY CIRCUIT
POWER
SWITCH
SPEAKER
AC INPUT
4
CIRCUIT BOARD LAYOUT
DS60-112
2/4MAIN
2/4MAIN
3/4MAIN
1/4MAIN
3/4MAIN
4/4MAIN
4/4MAIN
1/4MAIN
WIRING
W2
W4
W6
W1 W3
W5 BT1
BT2
CN3 CN2
CN1
5
DISASSEMBLY PROCEDURE
A. External fittings
1. Handle assembly
1-1. Remove the two (2) screws marked [G60d] and
remove the handle.
2. Corner metal fixture
2-1. Remove the two (2) screws marked [G50] and
remove the corner metal fixture. (Fig. 1)
3. Leg
3-1. Remove the one (1) screw marked [G110] and
remove the leg. (Fig. 1)
[G50]
[G60d]
[G50]: Oval Head Tapping Screw-1 3.5X16 MFN133 (V3833600)
[G60d]: Oval Flat Head Screw 5.0X25 FNM3-2B (V3743700)
[G110]: Truss Head Tapping Screw-1 4.0X20 MFZN2BL (O3747290)
Fig.1
[G110]
4. Amplifier Unit
4-1. Remove the four (4) screws marked [80] and four
(4) angle washers marked [90] from the rear panel.
(Fig. 2)
4-2. Remove the four (4) screws marked [30] and four
(4) angle washers marked [40] from the top panel.
(fig. 2)
5. Speaker
5-1. Remove the four (4) screws marked [80] and four
(4) angle washers marked [90] from the rear panel.
(Fig. 2)
5-2. Remove the four (4) screws marked [70]. The
speaker can then be removed. (Fig. 2)
[30][40]
[70]
[80]
[90]
[30]: Oval Head Screw 5.0X35 MFV2BL (V3749300)
[40]: Washer 5S MFC2BL (EW300020)
[70]: Hexagonal Nut 4.0 MFZN2Y (O3760900)
[80]: Oval Head Tapping Screw-1 4.0X30 MFC2BL (V3749400)
[90]: Washer 4S MFC2BL (VB890200)
Fig.2
6
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