Denon DAP 5500 Service Manual

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D E N O N I-II-Fi Digital Audio Preamplifieh

SERVICE MANUAL
MODEL, DAD-5500

DIGITAL AUDIO PREAMPLIFIER

TABLE OF CONTENTS

PRECAUTIONS ........................................................... 2
SPECIFICATIONS ......................................................... 3
NAME OF EACH PART ..................................................... 4
REMOVAL OF EACH SECTION ' ............................................... 5
CONNECTIONS ........................................................... 6,7
BLOCK DIAGRAM ........................................................ 8
ADJUSTMENT ........................................................... 9
BLOCK DIAGRAM OF DIGITAL UNIT ........................................... 10
TIMING CHART ......................................................... II
SAMPLING FREQUENCY INDICATION ADJUSTMENT ............................... 12
SEMICONDUCTORS ....................................................... 13,14
PRINTED WIRING BOARD PARTS LIST ........................................ 15~20

KU-9102E DIGITAL SIG UNIT KU-9103E DIGITAL P.S. UNIT

KU-QIO4E D.A & INPUT UNIT KU-QIOSE ANALOG P.S. UNIT

KU-9116E SERVO UNIT ,
PRINTED WIRING BOARD PATTERNS ........................................ 21 ~ 23

KU-9105 ANALOG P.S UNIT KU-9102 DIGITAL SIG UNIT

KU-9104 D.A. & INPUT UNIT KU-9116 SERVO UNIT

KU-9103 DIGITAL P.S. UNIT
EXPLODED VIEW OF CHASSIS AND CABINET .................................... 24
PARTS LIST OF EXPLODED VIEW ............................................. 25
WIRING DIAGRAM ........................................................ 26
SCHEMATIC DIAGRAM (ANALOG UNIT) ........................................ 27
SCHEMATIC DIAGRAM (DIGITAL UNIT) ........................................ 28

NIPPON COLUMBIA 00.. LTD.

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I DAD-55m: -

Installation Precautions

I

This device (digital audio device) uses a microcomputer tor control of the internal electronic
circuits. In the event that this device is used at the same time as a tuner or television, Inter
terence could occur either in the sound iron: the tuner or the picture on the television.
Please take the following precautions to avoid such occurrences.
- Keep this device as far away from the tuner or television as possible.
a Keep the power cable and other cables connected to this device separated from the antenna

wires of the tuner or television.

o Interference is particularly likely to occur when an indoor antenna or a 300 ohm feeder
line isused, so instead use an outdoor antenna and a 75 ohm coaxial cable for the antenna.

75 ohm coaxial ea in

For USA. and Canada models.

CAUTION

CORgagiség/PgthEEELEggnégszoc; DO NOT usE THIS (POLARIZED) PLUG WITH AN EXTENSION
. L H a UTLET UNLESS THE E ADES CAN 6
PREVENT aLADE EXPOSURE. L E FULLY INSERTED To

For United Kingdom modal only.

WARNING:

As the colours or tha wiret In the mains Ind ol this
appliance may not correspond with t ploured
marklrwt identilying lhl terminals in your pin!
proceed as tollowt:
1-h- win wh a coloured blue must be connected
to the terminal which Is marked with the letter N
or coloured block. Tha wire which is coloured
brown must be connected to the terminat which is
mlrked with the letter L or coloured rad.

IMPORTANT

. . l
The wires in this main! lead are coloured in accord-
, ance with the Iollowin coda:
The tone which it coloured anowu must he a
connected to thl terminll '4"ch I: marked with Elul: Neutral
the letter Lor coloured RED. 1 Live

SPECIFICATIONS

ANALOG SECTION
input terminals

Input sensitivity/Input impedance: LlNE-i-Z, ; 1 W10 kohrn

Output terminals
Rated outputllmpodance:

Maximum output:
Frequency response:

Harmonic distortion:

SIN ratio:

DAC OUT terminals:
Output impodanca:
Output vnluna:

BAP-55cm -

SOURCE DlRECTDN

TAPE-1'2 150 mV/IOkohm SOURCE DIRECT-OFF

LINES :1V/IU kohm lBalanced input) SOURCE DIRECT-0N
150 mV/IO kohm (Balanced input) SOURCE DIRECT-OFF
Suitable input terminals XL tvpe CANNON plugs

PRE-OUT-I : 1 mo ohm

PREOUT-Z (Balanced output) :2 wow ohm

PREDUT-I 15vrms (Unbalanced~tvpe) SDVrms (Balanced-type)
1H1 ~ 300 kHz :g as

0.002% 20 Hz ~ 20 RH! 5 v our

116 dB

Analog output terminals following the D/A converter

470 ohm

2 v (at 10 kohm load. cu max Hoarding level)

NOTE: Specifications are from the regular RCA type unbalanced input/output terminals without specifying Balance-

ed input/output".

DIGITAL SECTION
Digital input/output tynam.
Input terminals
Optical input terminal:
COAXIAL input:
DIGITAL TAPE tnrmlnals:

D-A mnvlrsion mlthod:
Filters:

Frequency response:
SIN ta
Dymmm range:

Total harmonic distortion:
Channol separation:

l
omen FUNCTIONS
Aptomatt twitching nfaamplinq
froquancy:
PRE our switch:

GENERAL
Power wppiy/PWI mnumption:

Dc Output:
Dimlnsion:
Weight:

Digital audio interface format

DIGITALI (1 system)

DIGITAL»? and 3 [2 systems) 0.5 vap7750hm
DIGITALTAPE. MONITOR (1,5 Vpp-750hm
DIGITALTAPE . REC 0.5 Vp-p-75ohm

40A push pulls super linear Convener

4-times oversampling digital filter, C.A.L.P. 7~pole analog filter

2 Hz ~ 20 kHz 20.2 dB

110 dB

More than 97 dB
Less than 0.002% (1 kHlI

More than 100 dB (1 I011)

32 kHz, 44,1 kHz,48 kHz
ON, OFF

120 VAC 60 HZ/25W (for USA, Canada)

220 VAC 50 Hz/ZSW liar Europe)

240 VAC 50 Hz/ZSW (for UK and Australia)

110/120/220/240 VAC 50/60 HdQO W (for Asia ........ multiple)

DC 12 V 1 mA

434 mm (17-3/32") W x133 mm (Eels/64") H x 380 mm (14-61/64") D
13.7 kg (30 lbs 3 01)

Specifications and contents are subject to change without notice for purposes of improvement.

NOTE: The Iollowing coda: correspond to the appropriate models.

E2 for Europe, Eu tor U.S.A., EA for Australia, EK tor u.K:
El Ior Atia and Ec for Canada.
This Service Manual is prepared based on Eu Black Version.