Denon PRA 2000Z Service Manual

Page 1

D E N O N Hi-FiStePeO Phe Amplifier"

SOLID STATE
STEREO PRE AMPLIFIER

TABLE OF CONTENTS

SPECIFICATIONS ................................................................. 2
CONTROLS AND FUNCTIONS ................. . ..................................... 3
CONNECTIONS ................ 4
BLOCK DIAGRAM ..... ' 5
TROUBLESHOOTING .............................................................. 6
METHOD OF ADJUSTMENTS .. ' * 7,.8
SEMICONDUCTORS ............................................................... 9
PRINTED WIRING BOARD PATTERNS AND PARTS LIST ,
suxoossa POWER SUPPLY UNIT ................................................. 9
AUXOOZSB CONTROL UNIT ........................................ 10,11
ETCOBQQB SERVO UNIT... ..................... 11
EUX001GB E0. & MC UNIT ...................... 12,13
ETCOSSSB TAPE & FLAT UNIT . ................. 14
ETC0654B DIGITAL UNIT ....................... 15
CONNECTION DIAGRAM ..... ............... 15
WIRING DIAGRAM .................................................... 17
EXPLODED VIEW OF CHASSIS AND CABINET 31 PARTS LIST .......................... 13

NIPPON COLUMBIA CO.. LTD.

OCT. 1984

Page 15

# FHA-200°2-

ET00654B DIGITAL UNIT PARTS LIST ETCOG543 DIGITAL UNIT
:3: Pan No. Part Name 81 Descriptions

SEMICONDUCTORS

10001 2620337009 TC9135P (TOSHIBA) IC
IC002 2620300007 HDI40I1BP (HITACHI) IC
IC003 2620438005 M54565I> (MITSUBISHI) IC
IC004 2630299001 NJM78M24A (JRC) IC
TR003 2730198015 2501815IB L) TRANSISTOR
~007
TR008, 2710102005 2SA1015IY) TRANSISTOR
009
TR010 2730198015 2SC1S1SIBL) TRANSISTOR
TR012 2710102005 2SA1015(Y) TRANSISTOR
TR013 2750043014 25K381(C)/(D) FET
TR014 2720058000 285834(Y) TRANSISTOR
TR015 2740065044 ZSDBBOIYIIIGR) TRANSISTOR
TR016 2750043014 25K381ICIIID) FET
TR017 2730198015 2SC1815IBL) TRANSISTOR
~019
TR020 2710102005 25A1015IY) TRANSISTOR
TR021, 2730198015 2SCI815IBL) TRANSISTOR
022
0008 2760049008 132076 DIODE
~013
D014 2760236031 HZSC-1 ZENER
DO15 2760049008 152076 DIODE
~018
D020 2760333002 UB-152LFA DIODE
D021 2760348000 S'ZK20F DIODE
D022 2760318001 H21 2A-2 ZENER
0024 3939091006 TLY206 (YELLOW) LED
D028, 2760049008 182076 DIODE 79%?ng R
029
D031, 2760049008 132076 DIODE
032

RESISTORS (not included Carbon 15%. 1/4W Type)

R039 2420199007 4.7 Mohm 310% 1/4W CARBON

COMPOSIT
R045 2412321032 47 ohm 25%1/4w CARBON
COMPOSIT
R047 2412321032 4.7 Ohm 25%1/4w CARBON
COMPOSIT
R049 2412321032 47 ohm :5%1/4W CARBON
COMPOSIT
VR001 2110408008- VARIABLE RESISTOR 68 kohm
FOR MAIN
CAPACITORS Ref 1
No. Part No. Part Name 81 Descriptions :2 Part No. Part Name 81 Descriptions 52f. Part No. Part Name 81 Ducriptiom
0002 2544132005 105E 16v ELECTROLYTIC '
C003, 2544145005 0.47111: 50v ELECTROLYTIC 0038 2544044009 10F 50v ELECTROLYTIC 2050133051 5P NH CONNECTOR EASE USED 3 2034214006 3P CONNECTOR CORD
004 C041 2544132005 10115 16V ELECTROLYTIC 2050133054 6P NH CONNECTOR BASE 2034203033 3» CONNECTOR coRO USED 2
0005 2544129005 47uF 10V ELECTROLYTIC 0031 2544044009 1uF 50v ELECTROLYTIC 2050185041 4P WIRE HOLDER 2036102006 4P CONNECTOR CORD
0006 2544127007 22011F 6.3V ELECTROLYTIC 0203 2544132005 10uF 16V ELECTROLYTIC 2050135054 59 WIRE HOLDER USED 2 2033109081 51: CONNECTOR CORD USED 2
C007 2544133004 22111: 16V ELECTROLYTIC F003, 2051035054 Fuse 1.6A(T) USED 2
0009 2551134070 0.22115 25% 50v PLASTIC FILM OTHER PARTS 004
0010 2561016007 0.068111: 210% 500v METALIZED 2020014003 FUSE CLIP USED 4
C011 2544035005 10uF 35v ELECTROLYTIC RL001, 2140036000 REED RELAY USED 2
0012, 2544042001 100,1F 35v ELECTROLYTIC 23:33:36 :gvéaloyfifpm USED 4 002
013 2034213010 3P CONNECTOR CORD
2090008120 JUMPER WIRE P=10rnm USED 26
0°14 2544035005 10 35" ELECTROLYT'C 2090008117 JUMPER WIRE P=12.5mm USED 4 2050161078 CONNECTOR BASE
C015 2554121006 100pF 55% 50v PLASTIC FILM SW001 2124361005 PUSH SWITCH USED 7 4170197111 HEAT SINK
0016 2544146004 10F 50v ELECTROLYTIC ~oo7 4700010008 PAN SCREW WITH s.W.W 3x8
egg, 25441410 1°F 35" ELECTROLVT'C 2050122033 3P CONNECTOR PIN ASS'Y USED 5 4730354019 TAPP'NG SCREW 2) 38
1 30226027 1? CONTACT ASS'Y
2050133035 3P NH CONNECToR BASE USED 6 2"
0020 2544132005 100E 16V ELECTROLYTIC 2050190049 4,, NH CONNECTOR BASE 2034135041 3? CONNECTOR CORD
~026

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