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Hi-Fi AM-FM Stereo Receiver

SERVICE MANUAL

MODEL

DRA-295

AM-FM STEREO RECEIVER

SAFETY PRECAUTIONS .......................................... 36

SPECIFICATIONS ..................................................... 36

DISASSEMBLY ......................................................... 37

ADJUSTMENT ...................................................... 38,39

BLOCK DIAGRAM ..................................................... 40

LEVEL DIAGRAM ...................................................... 41

SEMICONDUCTORS .......................................... 42~46

PRINTED WIRING BOARDS .............................. 47~51

NOTE FOR PARTS LIST ........................................... 52

PARTS LIST OF P.W.B. UNIT ASS'Y ................. 53~59

EXPLODED VIEW ..................................................... 60

PARTS LIST OF EXPLODED VIEW .................... 61,62

PACKING VIEW ........................................................ 63

— TABLE OF CONTENTS —

 

Some illustrations using in this service manual are slightly different from the actual set.

PARTS LIST OF PACKING & ACCESSORIES ........ 63

WIRING DIAGRAM .................................................... 64

SCHEMATIC DIAGRAMS ................................... 65~69

(1/5)

INPUT UNIT ........................................................... 65

VIDEO UNIT ........................................................... 65

(2/5)

VOLUME UNIT ....................................................... 66

CONNECTOR UNIT ............................................... 66

(3/5)

MAIN UNIT ............................................................. 67

(4/5)

FRONT UNIT .......................................................... 68

SWITCH UNIT ........................................................ 68

POWER SW/HP UNIT ............................................ 68

(5/5)

TUNER UNIT .......................................................... 69

For U.S.A., Canada
& Europe model

14-14, AKASAKA 4-CHOME, MINATO-KU, TOKYO 107-8011 JAPAN

Telephone: 03 (3584) 8111

X0118  842  NC  0108

Summary of Contents for DRA-29*5

Page 1: ...S LIST OF EXPLODED VIEW 61 62 PACKING VIEW 63 TABLE OF CONTENTS Some illustrations using in this service manual are slightly different from the actual set PARTS LIST OF PACKING ACCESSORIES 63 WIRING D...

Page 2: ...d Total harmonic distortion MONO 0 15 1kHz STEREO 0 3 1kHz General Power supply AC120V 60Hz For U S A Canada model AC230V 50Hz For Europe model Power consumption 3 0A For U S A Canada model 150W For E...

Page 3: ...embling Front Panel 1 Remove 4 screws 3 and 2 screws 4 2 Detach the Front Panel in the arrow direction Rear Panel U S A Canada model 1 Remove cord bushing 5 from the Rear Panel 2 Remove 23 screws 6 3...

Page 4: ...ion Meter Output Terminal L T403 Minimum Distortion 3 Repeat Steps 1 and 2 4 Signal Level 98 1MHz 98 0MHz FM SSG 98 1MHz 20dB OFF Antenna Terminal Light TUNED on FL Display VR402 ADJUSTMENT Tuner Sect...

Page 5: ...emove top cover and set VR101 VR102 on Amp Unit at full counterclockwise position 2 Connect DC Voltmeter to test points Lch TP101 Rch TP102 3 Connect power cord to AC Line and turn power switch ON 4 P...

Page 6: ...8 7 6 5 4 3 2 1 A B C D E DRA 295 40 BLOCK DIAGRAM...

Page 7: ...MAIN VOL POWER AMP MUTE ATT 1 1 MAIN CD IN SUB ROOM 200mV 200mV 18dB 35 5dB VOL 00 15 5dB 26dB 16 2dB SPK OUT 2 83V 1W 8ohms H P OUT 47mV 1W 8ohms SUB ROOM OUT 1 2V SPK OUT H P OUT SUB OUT 8 7 6 5 4 3...

Page 8: ...SET OPTION I Model select 36 SPEAKER A LED 1 O SPEAKER A LED indicator control 37 A VSS I A D converter GND 38 RESET I Low level active system reset 39 EXTAL I EXTAL 10MHz 40 XTAL O XTAL 10MHz 41 VSS...

Page 9: ...9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 A OUTPUT A INPUT A INPUT V B OUTPUT V B INPUT B INPUT 1 2 3 4 5 7 8 6 S2 S3 S4 S5 S6 S7 S8 S9 S10 S1 VDD STB DATA S2 S3 S4 S5 S6 S7 S8 S9 S10 GND CK Vss...

Page 10: ...olume volume M62446FP IC601 PC74HC4094 IC600 ICP N15 IC105 P43T7D330BW16 NJL64H380A RMC900 IC PROTECTOR IR SENSOR POSISTOR Detector FRONT VIEW FRONT VIEW Vout GND Vcc FRONT VIEW CXA1511M IC501 U S A C...

Page 11: ...MTZJ7 5A MTZJ7 5B MTZJ18B MTZJ20B 1N4007 1SS133 B C E R1 R2 B C E R1 R2 2SB1559 2SD2389 FRONT VIEW E C B DTA114ES DTA144ES DTC114ES DTC114YS DTC144ES FRONT VIEW B C E DTA series DTC series DTA114EK DT...

Page 12: ...DBS TV 1 VDP TAPE DVD MD AUX DVD MD V AUX TUNER 2 3 CD 1 PHONO VCR REC MULTI STEREO AUTO TUNED RDS CH S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S1 S2 S3 S4 S5 S6 S7 S9 S10 S11 S12 S1 S2 S3 S4 S5 S6 S7 S8...

Page 13: ...1 13 1 11 1 10 1 3 1 3 1 3 1 3 8 7 6 5 4 3 2 1 A B C D E DRA 295 47 MAIN P W B UNIT Ass y COMPONENT SIDE PRINTED WIRING BOARDS...

Page 14: ...1 7 1 13 1 1 3 7 1 10 1 23 2 22 1 2 22 23 1 10 1 11 8 7 6 5 4 3 2 1 A B C D E DRA 295 48 VOLUME P W B UNIT Ass y COMPONENT SIDE...

Page 15: ...1 8 9 16 1 21 22 42 11 20 1 10 8 7 6 5 4 3 2 1 A B C D E DRA 295 49 FOIL SIDE...

Page 16: ...8 7 6 5 4 3 2 1 A B C D E DRA 295 50 TUNER P W B UNIT Ass y COMPONENT SIDE...

Page 17: ...1 4 5 8 8 7 6 5 4 3 2 1 A B C D E DRA 295 51 FOIL SIDE...

Page 18: ...always in stock and possibly to take a long period of time for supplying or in some case supplying of part may be refused l When ordering of part clearly indicate 1 and I i to avoid mis supplying l O...

Page 19: ...41010065060 R162 164 244 2055 996 Metal film 1 2kohm 1W NB C060012265050 R165 244 2043 937 Metal oxide 10ohm 1W NB C041010065060 R166 244 2043 982 Metal film 0 22ohm 1W NB C060R22065050 R173 963 9003...

Page 20: ...ase L101220030000 1 F101 960 0188 705 Fuse 8A 125V for E3 1 G650802121060 F101 960 0142 602 Fuse T2 5A 250V for E2 1 G650252251160 F102 963 0089 803 Fuse 6 3A 125V for E3 1 G650632121150 F102 963 0044...

Page 21: ...m 1 16W C20005636M160 R985 987 963 9004 397 Carbon chip 56kohm 1 16W C20005636M160 R990 991 963 9004 397 Carbon chip 56kohm 1 16W C20005636M160 R993 963 9004 397 Carbon chip 56kohm 1 16W C20005636M160...

Page 22: ...431 G121162420400 1 XTAL900 960 0112 001 Ceramic resonator CST10 0MGW TF01 1 E830100000050 XTAL901 960 0091 818 Crystal 4 332MHz for E2 1 E8004R3320051 960 0184 408 FLT holder 4320200026000 1 TUNER P...

Page 23: ...3kohm 1 16W for E2 C20003326M160 R448 963 9004 216 Carbon chip 2 2kohm 1 16W C20002226M160 R449 963 9005 037 Carbon chip 3 9kohm 1 16W for E2 C20003926M160 R450 963 9003 398 Carbon chip 1kohm 1 16W f...

Page 24: ...6uF 100V D02056306C060 C464 963 9004 973 Ceramic 3pF 50V D000030007050 C471VT Electrolytic 1uF 50V D040010087080 C472VT 963 9004 753 Ceramic chip 0 047uF 50V D011473597160 C500 502 Electrolytic 47uF 2...

Page 25: ...7VB K5025 D950500500010 1 OUTLE909 960 0143 203 AC outlet for E2 1 G435040110000 SW925 963 0045 708 Tact switch G180000270010 1 SW927 963 0045 708 Tact switch G180000270010 1 SW929 960 0176 209 Push s...

Page 26: ...for E2 for E3 for E2 for E3 8 7 6 5 4 3 2 1 A B C D E DRA 295 60 EXPLODED VIEW Note The symbols indicate the following destinations E3 U S A Canada model E2 Europe model...

Page 27: ...0200026000 1 21 960 0181 207 Rotary encoder EC16B2420431 SW924 1 G121162420400 22 Heat sink main 2120210298100Z 1 23 960 0184 204 Heat sink bracket B 4010210386000 1 24 960 0184 301 Heat sink bracket...

Page 28: ...5 D 960 0108 714 Screw 3 10 B B for E3 24 B020030103B11 D 960 0108 714 Screw 3 10 B B for E2 19 B020030103B11 E 963 9004 009 Screw 3 14 P SW W Z B018230141H10 6 F 963 0018 104 Screw 3 17 B Z B02003017...

Page 29: ...04 Remote control unit RC 907 for E2 1 8300907000010 7 963 0045 106 Poly bag 6330000240000 1 8 963 0193 101 Cushion L R 6230210154001 1 9 963 0080 705 Carton case for E3 1 6007210310040 9 963 0080 718...

Page 30: ...8 7 6 5 4 3 2 1 A B C D E DRA 295 64 WIRING DIAGRAM...

Page 31: ...T PRIOR NOTICE WARNING Parts marked with this symbol have critical characteristics Use ONLY replacement parts recommended by the manufacture CAUTION Before returning the unit to the customer make sure...

Page 32: ...OUT PRIOR NOTICE WARNING Parts marked with this symbol have critical characteristics Use ONLY replacement parts recommended by the manufacture CAUTION Before returning the unit to the customer make su...

Page 33: ...R NOTICE WARNING Parts marked with this symbol have critical characteristics Use ONLY replacement parts recommended by the manufacture CAUTION Before returning the unit to the customer make sure you m...

Page 34: ...HANGE WITHOUT PRIOR NOTICE WARNING Parts marked with this symbol have critical characteristics Use ONLY replacement parts recommended by the manufacture CAUTION Before returning the unit to the custom...

Page 35: ...PRIOR NOTICE WARNING Parts marked with this symbol have critical characteristics Use ONLY replacement parts recommended by the manufacture CAUTION Before returning the unit to the customer make sure y...

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