GUITAR AMPLIFIER

Owners Manual

FCC INFORMATION (U.S.A.)

1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!
This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product. 2. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA. 3. NOTE: This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class B digital devices. Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the users manual, may cause interference harmful to the operation of other electronic devices. Compliance with FCC regula* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA.
tions does not guarantee that interference will not occur in all installations. If this product is found to be the source of interference, which can be determined by turning the unit OFF and ON, please try to eliminate the problem by using one of the following measures: Relocate either this product or the device that is being affected by the interference. Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line filter/s. In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon lead, change the lead-in to co-axial type cable. If these corrective measures do not produce satisfactory results, please contact the local retailer authorized to distribute this type of product. If you can not locate the appropriate retailer, please contact Yamaha Corporation of America, Electronic Service Division, 6600 Orangethorpe Ave, Buena Park, CA90620 The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries.
IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord
WARNING: THIS APPARATUS 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.
This applies only to products distributed by Yamaha-Kemble Music (U.K.) Ltd.
The exclamation point within the equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.
The lightning flash with arrowhead symbol, within the equilateral triangle, is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electrical shock.

IMPORTANT SAFETY INSTRUCTIONS
INFORMATION RELATING TO PERSONAL INJURY, ELECTRICAL SHOCK, AND FIRE HAZARD POSSIBILITIES HAS BEEN INCLUDED IN THIS LIST.
WARNING- When using any electrical or electronic product, basic precautions should always be followed. These precautions include, but are not limited to, the following:
Read all Safety Instructions, Installation Instructions, Special Message Section items, and any Assembly Instructions found in this manual BEFORE making any connections, including connection to the main supply. This product was NOT designed for use in wet/damp locations and should not be used near water or exposed to rain. Examples of wet /damp locations are; near a swimming pool, spa, tub, sink, or wet basement.
Do not attempt to service this product beyond that described in the user-maintenance instructions. All other servicing should be referred to qualified service personnel.
This product should be used only with the components supplied or; a cart ,rack, or stand that is recommended by the manufacturer. If a cart, rack, or stand is used, please observe all safety markings and instructions that accompany the accessory product.
Main Power Supply Verification: Yamaha products are manufactured specifically for the supply voltage in the area where they are to be sold. If you should move, or if any doubt exists about the supply voltage in your area, please contact your dealer for supply voltage verification and (if applicable) instructions. The required supply voltage is printed on the name plate. For name plate location, please refer to the graphic found in the Special Message Section of this manual.
The power supply cord (plug) should be disconnected from the outlet when electronic products are to be left unused for extended periods of time. Cords should also be disconnected when there is a high probability of lightening and/or electrical storm activity.
Care should be taken that objects do not fall and liquids are not spilled into the enclosure through any openings that may exist.

11. 12.

DANGER-Grounding Instructions: This product must be grounded and therefore has been equipped with a three pin attachment plug. If this product should malfunction, the ground pin provides a path of low resistance for electrical current, reducing the risk of electrical shock. If your wall socket will not accommodate this type plug, contact an electrician to have the outlet replaced in accordance with local electrical codes. Do NOT modify the plug or change the plug to a different type!
Electrical/electronic products should be serviced by a qualified service person when: a. The power supply cord has been damaged; or b. Objects have fallen, been inserted, or liquids have been spilled into the enclosure through openings; or c. The product has been exposed to rain; or d. The product does not operate, exhibits a marked change in performance; or e. The product has been dropped, or the enclosure of the product has been damaged.

WARNING: Do not place this product or any other objects on the power cord or place it in a position where anyone could walk on, trip over, or roll anything over power or connecting cords of any kind. The use of an extension cord is not recommended! If you must use an extension cord, the minimum wire size for a 25' cord (or less) is 18 AWG. NOTE: The smaller the AWG number, the larger the current handling capacity. For longer extension cords, consult a local electrician.
This product, either alone or in combination with an amplifier and headphones or speaker/s, may be capable of producing sound levels that could cause permanent hearing loss. DO NOT operate for a long period of time at a high volume level or at a level that is uncomfortable. If you experience any hearing loss or ringing in the ears, you should consult an audiologist. IMPORTANT: The louder the sound, the shorter the time period before damage occurs.
Ventilation: Electronic products, unless specifically designed for enclosed installations, should be placed in locations that do not interfere with proper ventilation. If instructions for enclosed installations are not provided, it must be assumed that unobstructed ventilation is required.
Temperature considerations: Electronic products should be installed in locations that do not seriously contribute to their operating temperature. Placement of this product close to heat sources such as; radiators, heat registers etc., should be avoided.
Some Yamaha products may have benches and/or accessory mounting fixtures that are either supplied as a part of the product or as optional accessories. Some of these items are designed to be dealer assembled or installed. Please make sure that benches are stable and any optional fixtures (where applicable) are well secured BEFORE using. Benches supplied by Yamaha are designed for seating only. No other uses are recommended.

PLEASE KEEP THIS MANUAL

92-469-3
Thank you for purchasing a Yamaha DG60-112 Guitar Amplifier. Originally conceived and entirely designed by Yamaha, the DG60-112 is a digital guitar amplifier that delivers powerful tube amp tone with superior stability compared to other tube amplifiers. Equipped with 2 independent channels, each channel offers 8 different preset amp types from which you can choose and create tone with. Along with digital spring reverb that can be applied to each channel is capable of producing a wide range of tone. Foot switches connected to the foot switch jacks can be used to switch between channels and switch the reverb ON/OFF. It also features a line out jack equipped with a speaker simulator. Altogether, the DG60-112 is a versatile guitar amplifier that can be used in studio as well as live situations. To get the best results and longest life out of your DG60-112, we recommend that you carefully read this manual, and keep it in a safe place for future reference.

Contents

Precautions... 5 Specifications.. 5 The Panel Controls... 6
s Front Panel.... 6 s Rear Panel.... 7

Setting Examples... 8

Precautions
q Avoid using your amplifier in the following locations to prevent possible damage: In direct sunlight or next to heating equipment. Extremely cold or hot locations. Locations exposed to high humidity or excessive dust. Locations subject to strong shocks or vibration. q Before making any connections, make sure that the power on the amplifier and any external devices is switched OFF. q To protect the speaker from possible damage, always set the MASTER knob to 0 before switching the power ON/OFF. q When connecting a speaker to this unit make sure to turn OFF the power first. q Do not apply excessive force to the switches and controls. q Your Yamaha guitar amplifier is a precision musical instrument. Handle it with care and avoid dropping or bumping it. q Operating temperatures will rise during use. Make sure the amplifier is used in a well-ventilated area. The DG60-112 should be placed in a position were there is at least 30cm (12) clearance from the wall on the sides, top and back of the amplifier. q For safety, always remove the power plug from the AC wall outlet if there is any danger of lightning striking in your area. q Keep the amplifier away from neon signs or fluorescent lighting to prevent noise pickup. q To prevent damage and possibly electrical shock, never open the case and tamper with the internal circuitry. q Never use benzene, thinner or other volatile liquids for cleaning, as these chemicals may cause damage or discoloration to the finish. Always use a dry, soft cloth to wipe off dust and dirt.

Specifications

Digital Section Complete Digital Signal Processing Amplification Type : Internal 8 Channel Preset Digital Reverb (SPRING) Speaker Simulator (LINE OUT) Analog Section 60W Solid State Power Amp 30 cm Speaker (EMINENCE) x 1 Controller/Switch Front Panel : GAIN, MASTER, TREBLE, HIGH MID, LOW MID, BASS, PRESENCE, REVERB, AMP select switch, for each channel (A/B), Channel select switch (A/B) Rear Panel : EFFECT BLEND, SP MUTE switch, for each channel (A/B), EFFECT SEND/RETURN level switch Indicator Peak Level Display LED (Red) Connection Jacks INPUT HIGH/LOW, EFFECT SEND/RETURN, LINE OUT/ PHONES, FOOT SW (CH SELECT, REVERB) : All Standard Phone Mono Jack A/D Converter D/A Converter Sampling Frequency 20 bit + 3 bit floating 20 bit 48 kHz
Input Level/Impedance INPUT HIGH: 20dBm (THRU)/1M INPUT LOW: 10dBm (THRU)/1M EFFECT RETURN: 0dBm/120k Output Level/Impedance SPEAKER: 60W RMS/8 LINE OUT: +2dBm/47 EFFECT SEND: 2dBm/1k Power Requirements U.S. and Canadian models : 120V, 60Hz General model : 230V, 50Hz Power Consumption 70W Dimensions (W x H x D) 540 x 504 x 276 mm (21.3 x 19.8 x 10.9) Weight 18.0 kg (39 lbs 11 oz)

Specifications and external appearance are subject to change without notice.

The Panel Controls

s Front Panel
The DG60-112 is a high-quality guitar amp with 2 independent channels. You can switch between channel A (the upper row of knobs t-o) settings and channel B (the lower row of knobs t-o) with the switch e or with a foot-switch. Control knobs t-o for both channels A and B operate in the same manner.
q Input Jack (INPUT HIGH, LOW)
The amplifiers input jack. The guitar is connected to the amplifier here. Guitars with a high output should be connected to the LOW jack while guitars with a low output should be connected to the HIGH jack. If you want a clean tone we recommend connecting the guitar to the LOW jack. * Always switch the power off before connecting the guitar.
GAIN level creates a tone similar to that natural overdrive when the volume is raised on a tube amplifier. This crisp tone is excellent for playing riffs and rhythm parts. CLEAN1, CLEAN2 A clean sound without distortion. Use an effect such as reverb or chorus to create a spacious sound.

w Peak Indicator

This indicator is used to match the input level. The indicator lights when the peak level is exceeded.

y Gain Volume (GAIN)

Use to control the amount of distortion. Rotate the knob to the right to increase the amount of distortion. * If the GAIN is set to 0, sound will not be produced even of the MASTER Volume is turned up.

e Channel Select Switch

Use to switch between Channels A and B. Press the switch to select the channel you want to use. When Channel A ( ) is selected, the amplifier will produce tone according to the settings specified by the upper row of knobs t o. When Channel B( ) is selected, the amplifier will produce tone according to the settings specified by the lower row of knobs t o.

u Master Volume (MASTER)

Use to control the overall volume of the GAIN and tone control settings.
i Tone Controls (TREBLE, HIGH MID, LOW MID, BASS, PRESENCE)
Use to control the levels of their respective frequencies. Rotate the knob to the right to increase the level of tone. TREBLE Controls the level of the high frequencies. HIGH MID Controls the level of the upper mid frequencies. LOW MID Controls the level of the lower mid frequencies. BASS Controls the level of the low frequencies. PRESENCE Controls the level of the frequencies higher than TREBLE.

r Channel Indicator

The indicator lamp corresponding to the currently selected channel lights.

t Amp Select Switch

Use to select one of the 8 internal preset guitar amp types. With any of the amp types, basically 2 is brighter than 1. Depending upon the control settings, as shown in Setting Examples on the page 8, the tone character that is possible is wider than what the amp types name implies. LEAD1, LEAD2 Lead offers a tone with heavy distortion. Substantial mids provide a fat tone with excellent sustain. DRIVE1, DRIVE2 Drive offers a thick overdrive tone with excellent sustain similar to when the volume is fully raised on a tube amplifier. Using the tone control knobs to adjust the balance of their respective frequencies creates a wider variety of tone. CRUNCH1, CRUNCH2 Crunch offers expressive picking articulation and nuance. Raise the

o Reverb Volume (REVERB)

Use to control the amount of reverb (Spring Reverb). Rotate the knob to the right to increase the amount of reverb. If the knob is set to 0, no reverb will be produced. Reverb can also be switched ON/OFF with a foot switch connected to the FOOT SW REVERB jack located on the rear panel.

!0 Power Switch (POWER)

The main units power switch. Press the switch to turn the amp ON/OFF. * To protect the speakers make sure the MASTER Volume is set to 0before you switch the power ON/OFF.
The Panel Controls s Rear Panel
Before making any connections, make sure that the power on the DG60-112 and any external devices is switched OFF.
OUT Reverb on/off Headphones

Effect Unit

Channel A/B selection
P. A. Mixer or Recording Device

!1 Foot Switch (FOOT SW)

The following functions can be switched with an optional foot switch (Yamaha FS1, etc.) connected to these jacks. Channel Select (CH SELECT) You can easily switch between Channels A and B in the same manner as the Channel Select Switch e on the front panel. Step on the foot switch to switch between Channels A/B. * When the foot switch is used, the Channel Select Switch e on the front panel is inactive. Reverb (REVERB) You can switch the Reverb ON/OFF. Stepping on the foot switch switches the Reverb ON/OFF. When the Reverb is switched OFF, no reverb will be produced.
!4 Effect Send/Return Level Switch (0dB/-20dB)
The output level of the Send Jack !5 and the input level of the Return Jack !6 can be set to 20dB or 0dB.
!5 Effect Send Jack (EFFECT SEND)
Connect an external effectors input jack to this jack. * When speaker output is muted, output to the EFFECT SEND jack !5 will be muted as well.
!6 Effect Return Jack (RETURN)
Connect an external effectors output jack to this jack.

!7 Blend Knob (BLEND)

Use this knob to control the amount of signal that is received from the effect return and added to the DG60-112s amp signal. Rotate the knob toward the EFFECT side to add more effect to the tone. Rotate the knob toward the DRY side for tone without effect.
!2 Speaker Mute Switch (SP MUTE)
Press the switch to mute output from the speaker. Insert a thin object inside the hole to press the switch. Use this switch in conjunction with the headphones or Line Out when you dont want sound produced by the DG60-112s speaker. * When speaker output is muted, output to the EFFECT SEND jack !5 will be muted as well.

!3 Line Out/Head Phone Jack (LINE OUT/PHONES)
Use this jack to connect directly to a mixers line jack or use a pair of headphones. The line signal from this jack passes through a *speaker simulator.
* What is a Speaker Simulator? The speaker simulator adds the live nuance of a speaker to the line signal. When you connect the DG60-112 directly to a mixer or MTR the speaker simulator will add the acoustic characteristics of a speaker, as heard through a microphone, to the tone.

Setting Examples

To help you start enjoying the fantastic sound of the DG60-112, here are some examples of common settings. Use these as a starting point in creating your own original sounds.
* Set the Master Volume control to a suitable level. * The setting can be changed to suit the guitar you use. Find your optimum setting by referring to the sample settings.
A typical distortion sound often used in British hard rock.

All-round crunch sound.

CRUNCH1
Ideally smooth lead sound for solos with sustains using the front pickup.
The warm and clean sound of a crunch amp. Can be used for all genres from jazz to rock.
A brilliant sound suitable for hard rock and heavy metal.
Crunch sound like a low-power vintage amp with the volume turned up all the way.

CRUNCH2

Optimum distortion for heavy riffs with the gain up, crisp overdrive with the gain down.
Contemporary jazz sound. Can be used to obtain a clean sound without using the CLEAN channel.

Tight overdrive sound.

Country sound with a punch.

DRIVE1

CLEAN1
A punchy overdrive sound with rich overtones in the mid range.
A rich and clean bass sound used in hard rock.
A hard overdrive sound emphasizing the low and high ranges.
A bright, clean sound. Can be used widely in a number of scenes.

DRIVE2

CLEAN2
Texas blues type sound with slight overdrive.

The natural, light crunch sound of a clean amp with the volume up.
Printed in Taiwan V369100

WARNING

Components having special characteristics are marked originally installed. and must be replaced with parts having specification equal to those

DG60-112

SPECIFICATIONS
Digital Section Complete Digital Signal Processing Amplification Type: Internal 8 Channel Preset Digital Reverb (SPRING) Speaker Simulator (LINE OUT) Analog Section 60 W Solid State Power Amp 30 cm Speaker (EMINENCE) x 1 Controller/Switch Front Panel: GAIN, MASTER, TREBLE, HIGH MID, LOW MID, BASS, PRESENCE, REVERB, AMP select switch, for each channel (A/B), Channel select switch (A/B) Rear Panel: EFFECT BLEND, SP MUTE switch, for each channel (A/B), EFFECT SEND/RETURN level switch Indicator Peak Level Display LED (Red) Connection Jacks INPUT HIGH/LOW, EFFECT SEND/RETURN, LINE OUT/PHONES, FOOT SW (CH SELECT, REVERB): All Standard Phone Mono Jack A/D Converter 20 bit + 3 bit floating D/A Converter Sampling Frequency 20 bit 48 kHz
Input Level/Impedance INPUT HIGH: 20 dBm (THRU)/1 M INPUT LOW: 10 dBm (THRU)/1 M EFFECT RETURN: 0 dBm/120 k Output Level/Impedance SPEAKER: 60 W RMS/8 LINE OUT: +2 dBm/47 EFFECT SEND: 2 dBm/1 k 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) 540 x 504 x 276 mm (21.3 x 19.8 x 10.9) Weight 18.0 kg (39 lbs 11 oz)

PANEL LAYOUT

Front Panel
Input Jack (INPUT HIGH, LOW) Peak Indicator Channel Select Switch Channel Indicator Amp Select Switch Gain Volume (GAIN) Master Volume (MASTER) Tone Controls (TREBLE, HIGH MID, LOW MID, BASS, PRESENCE) Reverb Volume (REVERB) Power Switch (POWER)

Rear Panel

Foot Switch (FOOT SW) Speaker Mute Switch (SP MUTE) Line Out/Head Phone Jack (LINE OUT/PHONES) Effect Send/Return Level Switch (0 dB/-20 dB) Effect Send Jack (EFFECT SEND) Effect Return Jack (RETURN) Blend Knob (BLEND)

CIRCUIT BOARD LAYOUT

(Bottom) Rear view

MAIN 2/5

Top view

MAIN 3/5

MAIN 4/5

MAIN 5/5

4-1 4-2

MAIN (1/5-5/5), A-CH and SW Circuit Boards
Remove the pre-main unit. (See Procedure 1.) Each circuit board can then be removed in its manner as below. (Fig. 2) MAIN 1/5 Circuit Board Remove the eight (8) knobs marked [90B], the eight (8) hexagonal nuts marked [A], the two (2) hexagonal nuts marked [130B] and the five (5) screws marked [80B]. Remove the knob marked [100B] and the knob marked [110] from the MAIN 1/5 circuit board. (Fig. 2) MAIN 2/5 Circuit Board Remove the screw marked [290A]. (Fig. 2) MAIN 3/5 Circuit Board Remove the screw marked [290B]. (Fig. 2) MAIN 4/5 Circuit Board Remove the screw marked [290C]. (Fig. 2) MAIN 5/5 Circuit Board Remove the screw marked [290D]. (Fig. 2) A-CH Circuit Board Remove the eight (8) knobs marked [90C] and the eight (8) hexagonal nuts marked [B]. (Fig. 2) SW Circuit Board Remove the two (2) knobs marked [90D] and the two (2) hexagonal nuts marked [C]. (Fig. 2)

5-1 5-2

Power Transformer
Remove the pre-main unit. (See Procedure 1.) Remove the four (4) screws marked [270]. The power transformer can then be removed. (Fig. 2)
[90A] [190] [130A] [210] [100A] [130A]

[290C] [290D]

[290A] [290B]

[270]X4

MAIN 5/5 DM

[80B] [90C], [B]

[130B] [100B] [90D], [A] [90B], [A] [110]
[80]: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) [130]: Hexagonal Nut 9.0 12X2 MFNI33 (LX200060) [190]: Hexagonal Nut 12.0 14X2 MFC2BL (VD794100) [210]: Hexagonal Nut 9.0 11X2 MFZN2BL (VJ388000) [270]: Bind Head Tapping Screw-C A4.0X8 MFZN2BL (VC688900) [290]: Bind Head Screw SP 3.0X12 MFZN2Y (VB763800)

(Fig. 2)

LSI PIN DESCRIPTION
HD6433042SC10FP (XW325100) CPU
PIN NO. NAME PA6 PA7 VCC PB0 PB1 PB2 PB3 PB4 PB5

PB6//DREQ0 PB7//DREQ1

DM: IC17 PIN NO. NAME A12 A13 A14 A15 A16 A17 A18 A19 VSS P60//WAIT P61//BREQ P62//BACK /STBY /RES NMI VSS EXTAL XTAL VCC /AS /RD /HWR /LWR MD0 MD1 MD2 AVCC VREF P70/AN0 P71/AN1 P72/AN2 P73/AN3 P74/AN4 P75/AN5 P76/AN6 P77/AN7 AVSS P80 P81//CS3 P82//CS2 P83//CS1 P84//CS0 VSS PA0 PA1 PA2 PA3 PA4 PA5 I/O O O O O O O O O I I I O I I I I O O O O O I I I I I I I I I I I I O O O O O I I I O O O FUNCTION

I/O O O I I I I I I I I O O O I I O I I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O O O O O O O O O O O O O
FUNCTION Port A Address bus Power supply

Address bus

Port B
Ground Port 6 out Stand-by mode signal Reset Non-maskable interrupt Ground Clock Clock Power supply Address strobe Read strobe Write strobe (High) Write strobe (Low) Mode select Analog power supply Reference voltage Analog data input (EQ) Analog input (EQ) Analog data input Analog input (CS) Analog data input (BEND) Analog input (MOD) Analog input (FC) Analog input (BAT) Analog ground Port 8 Chip select Ground Port A
/RESO VSS P90/TXD0 P91/TXD1 P92/RXD0 P93/RXD1 P94/SCK0 P95/SCK1 P40/D0 P41/D1 P42/D2 P43/D3 VSS P44/D4 P45/D5 P46/D6 P47/D7 D8 D9 D10 D11 D12 D13 D14 D15 VCC A0 A1 A2 A3 A4 A5 A6 A7 VSS A8 A9 A10 A11
Reset Ground Transmit data (MIDI OUT) KSN-ACK Receive data (MIDI IN) KSN-RX Port 9 Port 9

(Ground)

Data bus

Power supply

Address bus (Ground)
YSS228E-F (XQ962D00) DSP3 (Digital Signal Processor)
PIN NO. NAME VSS XI XO VDD /SYNCI /SYNCO CKI CKO CKSL VSS MCKS /SSYNC /IC /TEST BTYP /IRQ TRIG VDD VSS /CS /DS R/W CA7 CA6 CA5 CA4 CA3 CA2 CA1 CA0/CD15 CD14 CD13 CD12 CD11 CD10 CD09 CD08 CD07 CD06 VSS VDD CD05 CD04 CD03 CD02 CD01 CD00 /DTACK SI0 SI1 SI2 SI3 SI4 SI5 SI6 SI7 VSS VDD SO0 SO1 SO2 SO3 SO4 SO5 SO6 SO7 DB00 DB01 DB02 DB03 DB04 DB05 DB06 DB07 DB08 DB09 DB10 DB11 DB12 VDD I/O I I O I O I I I I I I O I/O I I I I I I I I I I I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O O I I I I I I I I O O O O O O O O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O PIN NO. Ground 81 System master clock input (60 M or30 MHz) 82 System master clock input (60 M or30 MHz) Power supply 85 System synch. input 86 System synch. output System clock input (30 MHz) 87 System clock output (30 MHz) 88 System master clock select (0:60 M,1:30 MHz) 89 Ground 90 Master clock for serial I/O(128 xFs) 91 Synch. signal for serial I/O 92 Initial clear 93 Test mode setting 94 CPU data bus 8/16 bit select(0:8,1:16) 95 Interrupt request 96 Trigger signal 97 Power supply 98 Ground 99 Chip select 100 Data strobe 101 Read/Write select CPU address bus 110 CPU address/data bus CPU data bus 119 Ground 120 Power supply CPU data bus 127 DTACK signal output 132 Serial data input Ground 137 Power supply 142 Serial data output Parallel data bus 159 Power supply 160 FUNCTION NAME VSS DB13 DB14 DB15 DB16 DB17 DB18 DB19 DB20 DB21 DB22 DB23 DB24 DB25 DB26 DB27 DB28 DB29 DB30 DB31 TIMO/DBOE VSS VDD DA00 DA01 DA02 DA03 DA04 DA05 DA06 DA07 DA08 DA09 DA10 DA11 DA12 DA13 DA14 DA15 VSS VDD DA16 DA17 DA18 DA19 DA20 DA21 DA22 DA23 DA24 DA25 DA26 DA27 DA28 DA29 DA30 DA31 VDD VSS A00 A01 A02 A03 A04 A05 A06 A07 A08 A09 A10 A11 A12 A13 A14 A15/RAS A16/CAS A17/CE /WE /OE VDD I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O O O O O O O O O O O O O O O O O O O O O Ground FUNCTION

DM: IC14, 15

Parallel data bus
Timing signal/Parallel data bus control Ground Power supply

External memory data bus

Ground Power supply

Power supply Ground

External memory address bus
External memory address bus/Row address strobe External memory address bus/Column address strobe
External memory address bus/Chip enable External memory write enable External memory output enable Power supply
AK4520A-VF-E2 (XT802A00) ADC & DAC
PIN NAME NO. 1 VREFH 2 VREFL 3 AINR+ 4 AINR5 AINL+ 6 AINL7 VA 8 AGND 9 DIFDIFLRCK 12 SCLK 13 SDTI 14 SDTO I/O I I I I I I I I I I I O FUNCTION Positive Voltage Reference Input, VA Negative Voltage Reference Input, AGND Rch Analog Positive Input Rch analog Negative Input Lch Analog Positive Input Lch analog Negative Input Analog Power Supply Analog Ground Audio Data Interface Format Audio Data Interface Format Input/Output Channel Clock Audio Serial Data Clock Audio Serial Data Input Audio Serial Data Output PIN NAME NO. 15 MCLK 16 DEMDEMTSTTSTTSTVD 22 DGND 23 /PWDA 24 /PWAD 25 CMODE 26 AOUTL 27 AOUTR 28 VCOM I/O I I I I/O I/O I I I I O O O FUNCTION

MAIN: IC301

Master Clock Input De-emphasis Frequency Select De-emphasis Frequency Select Test Pins (Pull Down Pins) Digital Power Supply Digital Ground DAC power-Down Mode ADC power-Down Mode Master Clock Select (H:384 fs,L:256 fs) Lch Analog Output Rch Analog Output Common Voltage Output, VA/2

IC BLOCK DIAGRAM

TCHCU04AF-TP1 (XD660A00) Hex Inverter

DM: IC 11

SN74HC08NSR (XD831A00) Quad 2 Input AND

DM: IC 12

TC74VHC32F (XR337A00) Quad 2 Input OR

DM: IC 13

1A 1Y 2A 2Y 3A 3Y Vss
1A 8 VDD 1B 6A 1Y 6Y 2A 5A 2B 5Y 2Y 4A 4Y VSS

VDD 4B 4A

1A 1B 1Y

Vcc 4B 4A

4Y 3B 3A 3Y

2A 2B 2Y GND

TC74HC157AF-TP1 (XH603A00) Quad 2 to 1 Multiplexer

DM: IC 21

TC74HC164AF (XQ967A00) 8-Bit Shift Register

DM: IC 9

TC74HC175AF -TP1 (XD658A00) Quad D-Type Flip-Flop

DM: IC 10

SELECT 1A 1B 1Y 2A 2B 2Y GND
16 1A 1B 1Y 2A 2B 3Y 2Y G 4A 4B 4Y 3A 3B 9

Vcc STROBE 4A 4B

SIRIAL INPUT

A B QA

1 A B QA QH QG

VCC QH QG OUTPUTS

CL 1Q 1Q 1D 2D 2Q 2Q Vss
16 Q CL CK Q D CL Q CK D Q Q D CK Q CL D Q CK CL Q 9

VDD 4Q 4Q 4D 3D 3Q 3Q CK

QB OUTPUTS QC QD GND

QF QE CLEAR CLOCK

4Y 3A 3B 3Y

QD CLEAR CK A

TC74HC4040F (XR684A00) 12-Stage Binary Ripple Counter

DM: IC 8

TC74HC4052AF (XS790A00) Differential 4-Channnel Multiplexer/Demultiplexer

DM: IC 19, 20

NE5532P (IG102500) NJM4556AD (XQ824A00) Dual Operational Amplifier

DM: IC 1, 2, 46

Q12 Q6 Q5 Q7 Q4 Q3 Q2 Vss
Q12 Q6 Q5 Q7 Q4 Q3 Q2 Q11 Q10 Q8 Q9 CL CK Q1
VDD Q11 Q10 Q8 Q9 CLR Input Pulses ( Q1 )
0Y 2Y Y-COM 3Y 1Y INH VEE VSS

1 0Y 8

16 2Y 2X 9
VDD 2X 1X X-COM 0X 3X A B Output A Inverting Input A Non-Inverting Input A -DC Voltage Supply -V +V +DC Voltage Supply Output B Inverting Input B Non-Inverting Input B
Y-COM 1X 3Y X-COM 1Y INH 0X 3X A
NJM072D (IG107000) Dual Operational Amplifier

MAIN: IC 201, 202

1 +V OUT A A -IN +IN A -V +IN B B 6 7

+V OUT B

SELF CHECK AND INSPECTIONS

PREPARATIONS

1. 2. 3. If no specific frequency is required, set the test frequency at 1 kHz. Before turning the [POWER] switch on, set the Idling Adjustment Volume (VR201, 1 k ohms) on the MAIN circuit board at minimum. Before turning the [POWER] switch on, set all the knobs at the center position.

SELF CHECK MODE

SET-UP: While pressing the SW2 switch on the DM circuit board, turn the [POWER] switch on. The self check mode program will be started. 0. LED Check When the DG60-112 enters the self check mode, the LED check is started and the LEDs light automatically as the check follows the circular sequence below, while pressing the SW2 switch.
all LEDs on all LEDs off A ch LED on B ch LED on all LEDs off
When the SW2 switch on the DM circuit board is released, the check will proceed to the next SW check after all LEDs light-up and the LED check is finished. 1. SW Check CHANNEL SELECT SWITCH (A/B) If the channel select switch is turned on (selected B ch) when a plug is not inserted into the CH SELECT jack (JK5), A ch LED will light. CH SELECT (JK5) When a plug is inserted into the CH SELECT jack (JK5), the channel select function will go out and the A ch LED will light. Removing the plug will make the A ch LED go out. REVERB (JK4) When a plug is inserted into the REVERB jack (JK4), B ch LED will light. Removing the plug will make the B ch LED go out. SP MUTE (SW3) When the SP MUTE switch (SW3) is pressed, both the A ch and B ch LEDs will go out. When the SW2 switch on the DM circuit board is pressed, the check will proceed to the next Volume check after all the LEDs light-up and the SW check is finished. 2. Volume Check This volume check can be tested in the order below from 1 to 18. 1. A ch AMP SELECT (CN31 pin) 2. A ch GAIN (CN32 pin) 3. A ch MASTER (CN33 pin) 4. A ch TREBLE (CN34 pin) 5. A ch HIGH MID (CN35 pin) 6. A ch LOW MID (CN36 pin) 7. A ch BASS (CN37 pin) 8. A ch PRESENCE (CN38 pin) 9. A ch REVERB (CN39 pin) 10. B ch AMP SELECT (CN41 pin) 11. B ch GAIN (CN42 pin) 12. B ch MASTER (CN43 pin) 13. B ch TREBLE (CN44 pin) 14. B ch HIGH MID (CN45 pin) 15. B ch LOW MID (CN46 pin) 16. B ch BASS (CN47 pin) 17. B ch PRESENCE (CN48 pin) 18. B ch REVERB (CN49 pin)

* 0 dBm = 0.775 V When Sound Check is completed, turn the [POWER] switch off to quit the self check mode.

PARTS LIST

CONTENTS
OVERALL ASSEMBLY 2 PRE-MAIN UNIT 4 OVERALL CABINET ASSEMBLY 6 ELECTRICAL PARTS 7~12
Notes : DESTINATION ABBREVIATIONS
A: B: C: D: E: F: H: I : J: Australian model British model Canadian model German model European model French model North European model Indonesian model Japanese model M: South African model O: Chinese model Q: South-east Asia model T: Taiwan model U: U.S.A. model V: General export model (110 V) W: General export model (220 V) N,X: General export model Y: Export model
Components having special characteristics are marked specification equal to those originally installed. and must be replaced with parts having
The numbers in QTY show quantities for each unit. The parts with - - in PART NO. are not available as spare parts. The mark in the remarks column indicates that these parts are interchangeable. The second letter of the shaded ( ) part number is O, not zero. The second letter of the shaded ( ) part number is I, not one.

OVERALL ASSEMBLY

10 Pre-main unit: See page 4.
Overall cabinet assembly: See page 6.

120 60

REF NO.
PART NO. DESCRIPTION OVERALL ASSEMBLY -Overall Assembly -Overall Assembly -Overall Assembly -Overall Assembly -Pre-main Unit -Pre-main Unit -Pre-main Unit -Pre-main Unit V3691700 Overall Cabinet Assembly VP104600 Oval Head Screw EW300020 Washer XW018A00 Speaker 03760900 Hexagonal Nut EN240090 Oval Head Tapping Screw-1 VB890200 Washer V2237300 Name Plate V3623800 Truss Head Tapping Screw-1 -Label -Connector Assembly VC688900 Bind Head Tapping Screw-C ET900050 Toothed Lock Washer-B

REMARKS

DG60-112 J U H B J U H B (V369020) (V369030) (V369040) (V369050) (V369130) (V369140) (V369150) (V369160) (V374930)
5.0X35 MFC2BL 5S MFC2BL EMINENCE 1217F3831 4.0 MFZN2Y 4.0X30 MFC2BL 4S MFC2BL 3.0X10 FCM3-BL SP frame A4.0X8 MFZN2BL 4.0 MFZN2BL

U U U U

(V374940)

(VA03930) (V374010)

*: New Parts

RANK: Japan only

PRE-MAIN UNIT

140 150

110 125

235 236

U model: not used
* * * * * * * * * 290 295
PART NO. DESCRIPTION PRE-MAIN UNIT -Pre-main Unit -Pre-main Unit -Pre-main Unit -Pre-main Unit V3692500 Chassis V3817700 Chassis V3817800 Chassis V3755700 Insulation Sheet AAX07370 Circuit Board AAX07380 Circuit Board AAX07370 Circuit Board AAX07380 Circuit Board EP600190 Bind Head Tapping Screw-B EP600190 Bind Head Tapping Screw-B V3694100 Volume Knob (CH) VZ429100 Button (S) VU859000 VU859100 V4126900 LX200060 VL802300 V3630000 V3630100 V3732600 ET800150 VD794100 VB004700 VJ388000 XV965A00 XV966A00 XV967A00 VZ461100 VV205600 VV058200 VV058300 EL200020 ET900050 V4491100 VV103000 VV103100 V3634000 V3693100 VC688900 V3637600 VB763800 VV104600 Power Switch Knob Escutcheon, Power Switch Film, Power Switch Hexagonal Nut Flat Washer Insulation Nut Spacer Circuit Board Toothed Lock Washer-A Hexagonal Nut Flat Washer Hexagonal Nut Power Transformer Power Transformer Power Transformer AC Cord AC Cord AC Cord AC Cord Pan Head Screw Toothed Lock Washer-B Isolation Sheet Cord Strain Relief Cord Strain Relief Cord Strain Relief Heat Sink Bind Head Tapping Screw-C Insulation Sheet Bind Head Screw Cord Holder

DG60-112 J U H B J U H,B (V369130) (V369140) (V369150) (V369160)
MAIN MAIN A-CH SW 3.0X8 MFZN2BL 3.0X8 MFZN2BL GY

J,U H,B

J,H,B U GAIN,.,REVERB,BLEND A/B channel select switch EFFECT SEND/RETURN level SW POWER
13X8X0.15 9.0 12X2 MFNI33 9X14 0.5 FNM33
DM 9.0 MFZN2Y 12.0 14X2 MFC2BL 12S MFC2BL 9.0 11X2 MFZN2BL
J U H,B J U H B U,H,B U,H,B J,H,B J,H,B U
2X0.75 7A VCTF 3X#18 10A SJT H05VV-F3X0.75 6A H05VV-F3X0.75 SP 4.0X8 MFZN2Y 4.0 MFZN2BL SR-5R1 SR-6P1 SR-4N-4 HEYCO A4.0X8 MFZN2BL T=0.15 SP 3.0X12 MFZN2Y

* * * *

OVERALL CABINET ASSEMBLY

Handle assembly

* 100 110

* * * * *

PART NO. V3691700 ---V3694400 V3833600 V3630300 V3743700 VVVV3694800
DESCRIPTION OVERALL CABINET ASSEMBLY Cabinet Assembly Vinyl Speaker Net Corner Protector Round Head Tapping Screw-1 Handle Assembly Oval Head Screw Screw Truss Head Tapping Screw-1 Leg Truss Head Tapping Screw-1 Shield Sheet
DG60-112 (V369420) (V369430) (V369860)
3.5X16 MFNI33 5.0X25 FNM3-2B 4.0X40 MFC2BL 4.0X30 MFZN2Y 4.0X20 MFZN2BL

ELECTRICAL PARTS

* * * * * * *
PART NO. DESCRIPTION ELECTRICAL PARTS V3732600 Circuit Board AAX07370 Circuit Board AAX07380 Circuit Board AAX07370 Circuit Board AAX07380 Circuit Board Circuit Board Electrolytic Cap.-BP Ceramic Capacitor-SL Mylar Capacitor Mylar Capacitor Ceramic Capacitor-SL Mylar Capacitor Electrolytic Cap.-BP Ceramic Capacitor-SL Ceramic Capacitor-SL Mylar Capacitor Electrolytic Cap. Semiconductive Cera. Cap. Electrolytic Cap. Electrolytic Cap. Semiconductive Cera. Cap. Electrolytic Cap. Semiconductive Cera. Cap. Semiconductive Cera. Cap. Electrolytic Cap. Electrolytic Cap.-BP Electrolytic Cap. Ceramic Capacitor-SL Electrolytic Cap.-BP Ceramic Capacitor-B Electrolytic Cap.-BP Electrolytic Cap.-BP Ceramic Capacitor-B Electrolytic Cap.-BP Electrolytic Cap. Ceramic Capacitor-SL Electrolytic Cap.-BP Electrolytic Cap.-BP Monolithic Ceramic Cap. Ceramic Capacitor-SL Electrolytic Cap.-BP Electrolytic Cap. Ceramic Capacitor-SL Electrolytic Cap.-BP Ceramic Capacitor-SL Electrolytic Cap.-BP Electrolytic Cap.-BP Electrolytic Cap. Semiconductive Cera. Cap. Semiconductive Cera. Cap. Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Semiconductive Cera. Cap. Semiconductive Cera. Cap. Electrolytic Cap. Monolithic Ceramic Cap. Monolithic Ceramic Cap. Monolithic Ceramic Cap. Monolithic Ceramic Cap. Electrolytic Cap. Monolithic Ceramic Cap. Electrolytic Cap. Monolithic Ceramic Cap. Monolithic Ceramic Cap. Electrolytic Cap.
DM MAIN MAIN A-CH SW DM 10.00 35.0V 10P 50V D 0.1000 50V J 0.1000 50V J 22P 50V J 1000P 50V J 10.00 35.0V 68P 50V J 22P 50V J 1000P 50V J 10.00 25.0V 0.1000 25V M 10.00 25.0V 10.00 25.0V 0.1000 25V M 10.00 25.0V 0.1000 25V M 0.1000 25V M 10.00 25.0V 10.00 35.0V 10.00 25.0V 22P 50V J 47.00 35.0V 1000P 50V K 10.00 35.0V 47.00 35.0V 1000P 50V K 10.00 35.0V 10.00 25.0V 22P 50V J 10.00 35.0V 10.00 35.0V SL 100P 50V J 22P 50V J 10.00 35.0V 10.00 25.0V 100P 50V J 10.00 35.0V 22P 50V J 10.00 35.0V 10.00 35.0V 10.00 25.0V 0.1000 25V M 0.1000 25V M 100.00 25.0V 100.00 25.0V 10.00 25.0V 10.00 25.0V 100.00 25.0V 0.1000 25V M 0.1000 25V M 100.00 25.0V CH 5P 50V C CH 5P 50V C F 0.100 25V Z F 0.100 25V Z 100.00 10.0V F 0.100 25V Z 100.00 10.0V F 0.100 25V Z F 0.100 25V Z 100.00 10.0V

REMARKS F 0.100 25V Z 100.00 10.0V F 0.100 25V Z F 0.100 25V Z 10.00 25.0V F 0.100 25V Z F 0.100 25V Z 10.00 25.0V F 0.100 25V Z F 0.100 25V Z SL 100P 50V J F 0.100 25V Z 10.00 25.0V F 0.100 25V Z 10.00 25.0V F 0.100 25V Z F 0.100 25V Z 100.00 10.0V F 0.100 25V Z 0.1000 25V M F 0.100 25V Z F 0.100 25V Z PH- 2P TE XH 6P TE PH- 9P TE PH-10P TE PH- 3P TE XH 3P TE 1SS133,1SS176 1SS133,1SS176 LS MT Y223NB LS MT Y223NB NE5532P NE5532P AK4520A-VF-E2 NJM4556AD NE5532P NE5532P AN78N05 TC74HC4040F TC74HC164AF TC74HC175AF-TP1 TC74HCU04AF-TP1 SN74HC08NSR TC74VHC32F YSS228E-F YSS228E-F MSM514260C-60JS SDM4260CLU-6S HD6433042SC10FP PST592D-MMP4P TC74HC4052AF TC74HC4052AF TC74HC157AF-TP1 0.55 6mm 0.55 6mm 0.55 6mm 0.55 6mm HLJ2306-01-30 MONO HLJ0544-01-11 MONO HLJ0544-01-010 ST. HLJ0544-01-11 MONO HLJ0544-01-11 MONO 10.0K 1/5 F 22.0K 1/5 F 10.0K 1/4 J 10.0K 1/4 J 5.6K 1/4 J 5.6K 1/4 J 470.0 1/4 J
OP AMP OP AMP ADC/DAC OP AMP OP AMP OP AMP REGULATOR +5V COUNTER SHIFT REGISTER D-FF INVERTER AND OR DSP3 DSP3 DRAM 4M MASK CPU RESET MULTIPLEXER MULTIPLEXER DATA SELECTOR
EFFECT RETURN EFFECT SEND LINE OUT/PHONES FOOT SW REVERB FOOT SW CH SELECT
R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 R28 R29 R30 R31 R32 R33 R34 R35 R36 R37 R38 R39 R40 -44 R45 R46 R47 R48 R49 R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R60 R61 R62 -65 R66 R67 RA1 -19 SW1 SW2 * SW3 TR1 -5 * VR1 X1 X2 ZD1 ZD2 * *
PART NO. HF755470 VA074400 VB064100 VB066500 HF756560 HF756560 HF755470 HF755470 HF756470 HF754330 HF756470 HF753470 HF756100 HF757270 HF757100 HF757100 HF756100 HF754470 HF758100 HF758100 HF754470 HF758100 HF757100 HF757100 HF756100 HF757270 HF757100 HF756220 HF756100 HF756100 HF758100 HF755100 HF757100 HF757100 HF756100 HF757100 HF758100 HF758220 HF757220 HF758220 HF757100 HF758470 HF757100 HF756470 HF756100 HF757100 HF758100 RD259100 RD255680 RD255220 RD255270 RD257100 RD257100 RD256470 VB066700 RE047100 RE047100 VR140800 VN121700 V3669300 IC287820 IC287820 V3739600 VN277000 VU682100 VQ454300 VQ454300
DESCRIPTION Carbon Resistor Metal Film Resistor Metal Film Resistor Metal Film Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor (chip) Carbon Resistor (chip) Carbon Resistor (chip) Carbon Resistor (chip) Carbon Resistor (chip) Carbon Resistor (chip) Carbon Resistor (chip) Metal Film Resistor Resistor Array Resistor Array Push Switch Push Switch Tact Switch Transistor Transistor Rotary Variable Resistor Quartz Crystal Unit Quartz Crystal Unit Zener Diode Zener Diode

REMARKS 470.0 1/4 J 10.0K 1/5 F 470.0 1/5 F 2.7K 1/5 F 5.6K 1/4 J 5.6K 1/4 J 470.0 1/4 J 470.0 1/4 J 4.7K 1/4 J 33.0 1/4 J 4.7K 1/4 J 4.7 1/4 J 1.0K 1/4 J 27.0K 1/4 J 10.0K 1/4 J 10.0K 1/4 J 1.0K 1/4 J 47.0 1/4 J 100.0K 1/4 J 100.0K 1/4 J 47.0 1/4 J 100.0K 1/4 J 10.0K 1/4 J 10.0K 1/4 J 1.0K 1/4 J 27.0K 1/4 J 10.0K 1/4 J 2.2K 1/4 J 1.0K 1/4 J 1.0K 1/4 J 100.0K 1/4 J 100.0 1/4 J 10.0K 1/4 J 10.0K 1/4 J 1.0K 1/4 J 10.0K 1/4 J 100.0K 1/4 J 220.0K 1/4 J 22.0K 1/4 J 220.0K 1/4 J 10.0K 1/4 J 470.0K 1/4 J 10.0K 1/4 J 4.7K 1/4 J 1.0K 1/4 J 10.0K 1/4 J 100.0K 1/4 J 1.0M 0.1 J 680.0 0.1 J 220.0 0.1 J 270.0 0.1 J 10.0K 0.1 J 10.0K 0.1 J 4.7K 0.1 J 3.3K 1/5 F 10KX4 10KX4 SPPJ2-EN-PW SKHHPP SKHHLWA010 2SC2878 A,B 2SC2878 A,B RK09L1120 20KB 24.576M AF3817CQA 30.00MHz DOC-49S2 MTZJ2.0A 2.0V MTZJ2.0A 2.0V MAIN MAIN
EFFECT SEND/RETURN Level SW TEST SP MUTE

EFFECT BLEND

J,U H,B (XV964B0) (XV964B0)
AAX07370 Circuit Board AAX07380 Circuit Board *: New Parts
PART NO. AAX07370 AAX07380 V3690100 VV319600 VV291400 BT201 -BT202 -C201 VV321100 C202 VZ353500 C203 UJ847100 C204 VV321100 C205 VZ354600 C206 VZ353500 C207 UJ847100 -209 UJ847100 C210 UJ847100 C211 VZ353500 C212 UJ866470 C213 VV062800 C214 UJ847100 C215 UJ847100 C216 VV520600 C217 UJ866100 C218 UJ866470 C219 V3632700 C220 V3632700 C221 V3632800 C222 V3632800 C223 UJ847100 C224 UJ847100 C225 VZ354000 C226 VZ354000 C227 VZ354600 C228 UJ639220 C229 UJ639220 C230 VZ354000 C231 VZ354000 C232 UJ847100 C233 UJ866100 C234 VZ353900 C235 UJ867470 -237 UJ867470 C238 VZ353600 C239 VZ353500 C240 VZ353600 C241 UJ858100 C242 VV062800 C243 VV062800 C244 VZ354600 -248 VZ354600 CN201 VG879900 CN202 LB932040 CN203 LB932050 CN204 VV066200 CN301 VV066400 CN401 VV068000 D201 VD631600 -205 VD631600 D206 IF005560 D207 VD631600 DB201 VV518200 DB202 VQ379300 FT201 IE000010 FZ201 VV070600 -203 VV070600 FZ201 VV071200 FZ202 VV071500 FZ203 VV071500 FZ204 VV070300 FZ204 VV071200 *: New Parts
DESCRIPTION Circuit Board Circuit Board LED Holder Fuse Holder Jumper Wire Cable Kit Connector Assembly Monolithic Mylar Capacitor Ceramic Capacitor-SL Electrolytic Cap. Monolithic Mylar Capacitor Monolithic Ceramic Cap. Ceramic Capacitor-SL Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Ceramic Capacitor-SL Electrolytic Cap. Mylar Capacitor Electrolytic Cap. Electrolytic Cap. Capacitor Electrolytic Cap. Electrolytic Cap. Polypropylene Capacitor Polypropylene Capacitor Electrolytic Cap.-LP Electrolytic Cap.-LP Electrolytic Cap. Electrolytic Cap. Ceramic Capacitor-F Ceramic Capacitor-F Monolithic Ceramic Cap. Electrolytic Cap. Electrolytic Cap. Ceramic Capacitor-F Ceramic Capacitor-F Electrolytic Cap. Electrolytic Cap. Ceramic Cap.-B Electrolytic Cap. Electrolytic Cap. Ceramic Cap.-B Ceramic Capacitor-SL Ceramic Cap.-B Electrolytic Cap. Mylar Capacitor Mylar Capacitor Monolithic Ceramic Cap. Monolithic Ceramic Cap. Base Post Connector Base Post Connector Base Post Connector Connector Base Post Connector Base Post Connector Base Post Diode Diode Diode Diode Diode Stack Diode Stack FET Fuse Fuse Fuse Fuse Fuse Fuse Fuse

REMARKS A-CH SW LED3-4A CQ-05CT 0.60 #18 1P L 100 SP #18 2P L 300 0.22 50V J 100P 50V J 10.00 25.0V 0.22 50V J 0.10 50V Z 100P 50V J 10.00 25.0V 10.00 25.0V 10.00 25.0V 100P 50V J 4.70 50.0V 0.1 50V J 10.00 25.0V 10.00 25.0V 0.01 400V J.U.C.S 1.00 50.0V 4.70 50.0V 0.022U/250V 0.022U/250V 3300U 50V SNAP IN 3300U 50V SNAP IN 10.00 25.0V 10.00 25.0V 0.0100 50V Z 0.0100 50V Z 0.10 50V Z 2200 16.0V 2200 16.0V 0.0100 50V Z 0.0100 50V Z 10.00 25.0V 1.00 50.0V 1000P 50V K 47.00 50.0V 47.00 50.0V 220P 50V K 100P 50V J 220P 50V K 100.00 35.0V 0.1 50V J 0.1 50V J 0.10 50V Z 0.10 50V Z VA- 2P TE VH- 4P TE VH- 5P TE 2P TE 4P TE 6P SE 1SS133,176,HSS104 1SS133,176,HSS104 1SS82TD 1SS133,176,HSS104 PBU403 4.0A 200V S1VB20 1.0A 200V 2SK30ATM Y TDS 2A 250V TDS 2A 250V TSD 1A 250V TSD 2A 250V TSD 2A 250V TDS 1A 250V TSD 1A 250V

(XV964B0) (XV964B0)

(V363230) (V363240)
J,U J,U H,B H,B H,B J,U H,B
PART NO. IC201 IG107000 IC202 IG107000 IC203 XJ607A00 JK201 V3633400 JK202 V3633400 LD201 VV620800 LD401 VV620800 LD402 VV620800 R201 HF457100 R202 HF459100 R203 HF456470 R204 HF457270 R205 HF457100 R206 HF457100 R207 HF459100 R208 HF456470 R209 HF456470 R210 HF457100 R211 HF457100 R212 HF456470 R213 HF455100 R214 HF456100 R215 HF457100 -218 HF457100 R219 HF456120 R220 HF458100 R221 HF456100 R222 HF457100 R223 HF458100 R224 HF457220 R225 HF456220 R226 HF458100 R227 HF458100 R228 HF456470 R229 HF456470 R230 HF458100 R231 V3751900 -234 V3751900 R235 V3633200 R236 HF456220 R237 HF457560 R238 HF455470 R239 HF457120 R240 HF456100 R241 HF456150 R242 HF456100 R243 HF457560 R244 HF456330 R245 HF456560 R246 HF456330 R247 HF456100 R248 HF455330 R249 HF455330 R250 VV276800 R251 HF456220 R252 V4480100 R253 V4480100 R254 V3632900 R255 V4480100 R401 HF455680 R402 HF455680 R403 HF456100 -416 HF456100 SW201 VV059400 SW202 V3633600 SW401 V3633800 SW402 V3633800 TR201 IC1815M0 TR202 IC1815M0 TR203 IA101590 *: New Parts
DESCRIPTION IC IC IC Phone Jack Phone Jack LED LED LED Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Metal Oxide Film Resistor Metal Oxide Film Resistor Metal Oxide Film Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Flame Proof C. Resistor Carbon Resistor Wire Wound Resistor Wire Wound Resistor Metal Oxide Film Resistor Wire Wound Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Push Switch Push Switch Rotary Switch Rotary Switch Transistor Transistor Transistor

2X0.75 7A VCTF 3X#18 10A SJT H05VV-F3X0.75 6A H05VV-F3X0.75

J U H B

DG60-112 OVERALL CIRCUIT DIAGRAM 1/2 ( DM )

LINE OUT/ PHONES

ADC / DAC

OP AMP

to MAIN 1/5-W201

EFFECT

BLEND 0dB / -20dB

RETURN

INVERTER

SHIFT REGISTER

to MAIN 1/5-W202

REGULATOR

COUNTER

to A-CH-W301

MULTIPLEXER

OR DSP3 AND

to MAIN 1/5-W207

DATA SELECTOR

REVERB

FOOT SW

CH SELECT

to MAIN 1/5-W204

to MAIN 1/5-W203

KEC-54179

Note : See parts list for details of circuit board component parts.
Semiconductive Ceramic Capacitor Ceramic Capacitor Metal Film Resistor

A B C D E F G H I J K

DG60-112 OVERALL CIRCUIT DIAGRAM 2/2 ( MAIN, A-CH, SW )

to DM-CN1 to DM-CN2

Peak indicator
Power transformer J U, C H B S XV965A00 XV966A00 XV967A00 XV967A00 AC cord VZ461100 VV205600 VV058200 VV058300 Cord strain relief VV103000 VV103100 VV103000 VV103000
FZ202 FZ201 FZ203 250V2A VV070600 250VT2AL VV071500 FZ204 250V1A VV070300 250VT1AL VV071200

J, U, C

250V2A VV070600

250VT1AL VV071200

Japanese model AC cord

U.S.&Canada models

General export model
: Mylar Capacitor British model : Flame Proof Carbon Resistor : Ceramic Capacitor : Metal Oxide Film Resistor
Power transformer (Primary) (Secondary) GAIN MASTER TREBLE HIGH MID LOW MID BASS PRESENCE REVERB
A/B channel select switch
NJM7805FA(XJ607A00) REGULATOR +5V
PBU403(VV518200) DIODE STACK
S1VB20(VS197600) DIODE STACK
1 : OUTPUT 2 : COMMON 3 : INPUT

to DM-CN6

KEC-54181-2

to DM-CN4

Components having special characteristics are marked ! and must be replaced with parts having specifications equal to those originally installed.
Note: See parts list for details of circuit board component parts.

to DM-CN3

Channel indicator A

AMP select switch A

AMP select switch B

Channel indicator B

MASTER

TREBLE

HIGH MID LOW MID

BASS PRESENCE

KEC-54181-3

CIRCUIT BOARDS

DM Circuit Board
BLEND RETURN SEND 0dB/-20dB LINEOUT SP MUTE REVERB CH SELECT EFFECT FOOT SW

to MAIN 1/5 - W203

to MAIN 1/5 - W202

to MAIN 1/5 - W201

to MAIN 1/5 - W204

Component side

Pattern side

A-CH Circuit Board

PRESENCE

LOW MID

HIGH MID

SW Circuit Board

Channel indicator B Channel indicator A
Component side Component side

Main 1/5

GAIN INPUT A/B (Channel select switch) LOW Peak indicator HIGH

from AC cord

to DM-CN2
(Primary) Power transformer Circuit Board Parts No. FZ201 2A 250V T1A L 250V FZ202 FZ203 2A 250V T2A L 250V FZ204 1A 250V T1A L 250V

(Secondary)

Main 5/5

Main 4/5

Main 3/5

Main 2/5

to DM-CN5

to DM-CN1

J.U.C H.BS

V366270 V366300

DM: CNA-V373260 MAIN, A-CH, SW: CNA-V366270