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SERVICE MANUAL

Ref. No. 3677

SAFETY-RELATED COMPONENT 

WARNING!!

COMPONENTS IDENTIFIED BY MARK         ON THE

SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE

CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.

REPLACE THESE COMPONENTS WITH ONKYO

PARTS WHOSE PART NUMBERS APPEAR AS SHOWN

IN THIS MANUAL.

MAKE LEAKAGE-CURRENT OR RESISTANCE

MEASUREMENTS TO DETERMINE THAT EXPOSED

PARTS ARE ACCEPTABLY INSULATED FROM  THE

SUPPLY CIRCUIT BEFORE RETURNING THE

APPLIANCE TO THE CUSTOMER.

052001

A-905TX

INTEGRATED STEREO AMPLIFIER

A-905TX

UDT        120V AC, 60Hz
UPT         230-240V AC, 50Hz

STANDBY/ON

PHONES

STANDBY

A-905TX

INTEGRATED STEREO AMPLIFIER

TREBLE

BASS

BALANCE

POWER

OFF/1/2

+

+

L

R

PRESENCE

ACOUSTIC

CD

MD

TUNER

LINE/ DVD

TAPE

CDR/PC

SOURCE DIRECT

DIRECT

DIRECT

TONE

INPUT

ON

OFF

VOLUME

WIDE RANGE AMP TECHNOLOGY

CLOCK

SLEEP

EFFECT

GRAPHIC EQ

MODE

1

2

3

4

5

6

7

8

9

10 / 0

-

 

- /

 

-

  

-

  

-

VOLUME

PRESET

F M

A M

PLAY MODE

PLAY MODE

REPEAT

CLEAR

SCROLL

MEMORY

REPEAT

CLEAR

DISC

REPEAT

CLEAR

ACOUSTIC

PRESENCE

TONE

RANDOM

TIMER

UP/DOWN

ENTER

MUTING

INPUT

TUNER

M D

DVD

C D

CDR

TAPE

REC

REC

PAUSE / STEP

STANDBY/ ON

REMOTE CONTROLLER

RC -

456

S

Das private Onkyo Archiv © von Dirk Gardi 

Der Online-Treff zum Thema Onkyo! 

www.gardi.de

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Das private Onkyo Archiv © von Dirk Gardi 

Der Online-Treff zum Thema Onkyo! 

www.gardi.de

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Das private Onkyo Archiv © von Dirk Gardi 

Der Online-Treff zum Thema Onkyo! 

www.gardi.de

 

Summary of Contents for TH-50PE8U

Page 1: ...BY A 905TX INTEGRATED STEREO AMPLIFIER TREBLE BASS BALANCE POWER OFF 1 2 L R PRESENCE ACOUSTIC CD MD TUNER LINE DVD TAPE CDR PC SOURCE DIRECT DIRECT DIRECT TONE INPUT ON OFF VOLUME WIDE RANGE AMP TECH...

Page 2: ...rd replace with same type fuse For fuse rating refer to the marking adjest to the symbol Ce symbole indique que le fusible utilise est e lent Pour une protection permanente n utiliser que des fusibles...

Page 3: ...3 A52 A58 A50 A67 U9 A1 A13 A55 A53 A54 A56 A73 A73 A16 U4 F901 A43 A43 A25 A26 E860 A34 A34 T901 Q523 Q525 Q526 Q524 Q528 Q527 A28 A10 P701 A10 A10 A10 U3 U2 P402 P402 A46 A49 A49 A49 A49 U7 U1 U8 U5...

Page 4: ...198895 Facet 1P 1A905531 4C NAAF 6631 4C Preamplifier circuit PC board ass y PT A54 28198925 Facet A U3 1A905532 4B NAAF 6632 4B Acoustic circuit PC board ass y DT A55 27268037 Guide A 1A905532 4C NAA...

Page 5: ...223Z C702 474 C518 473 C532 223Z C710 223Z C709 223Z C531 223Z R916 0 47 1 2W R916 0 47 1 2W R554 2 2 1 2W R552 2 2 1 2W R551 2 2 1 2W R353 1M R916 0 47 1 2W R543 100 1 2W R550 15 1 2W R582 10K R581...

Page 6: ...C507 2P C505 101J C421 822 C422 822 C427 153 C428 153 C414 224 C413 224 C506 101J C406 102J C405 102J C716 223Z R579 820 R513 3 3K R514 3 3K R533 82 1 4W R529 1 2K 1 2W R522 22K R521 22K R731 100K R73...

Page 7: ...ER PRE OUT MD PLAY REC CDR PC CD REC PLAY PROCESSOR IN OUT P304 P582 P303 P302 P301 P351A P351B P311A JL581A P591A P591B P912B P911B P592A P592B JL901B P307 P502B P502A P501B P501A P403A P401B P403B P...

Page 8: ...F D3SBA20 223205 1SS270A D912 D913 224471203 MTZJ12C D503 D504 224470562 MTZJ5 6B Oscillator Capacitors X701 3010150 CST4 00MGW C511 C512 354741009 10uF 16V Elect Coils C509 C510 393322217 220uF 6 3V...

Page 9: ...IPTION Fuse label Capacitors F901C 29362519 T800mAL250V PT C951 3300055 DE1610F103M KH Switch S951 25035550 NPS 111 L512P Power Cover DISPLAY CIRCUIT PC BOARD NADIS 6634 4B AC C951A 27301216 SB1925A P...

Page 10: ...input pin 19 NC O Speaker relay control signal output pin 20 MUT LED O MUTING indicator control pin Light on and off when the muting circuit turns on 21 NC I No connection 22 NC 23 VOL UP O Volume co...

Page 11: ...C PRESENCE S702 INPUT SELECTOR R732 Q703 Q301 TC9273N 010 Q707 74HC595 GREEN RED Q702 TA7291S Q505 Q506 MICROPROCESSOR Q701 HD404316 E30H POWER S701 U701 D723 Q415 Q418 R459 SPEAKER RELAY SWITCH POWER...

Page 12: ...inal P503 P504 3 After turn POWER to ON adjust the trimming resistors R575 R576 so that the reading of voltmeter becomes 2 0 mV 4 After adjustment attach the top cover 5 Confirm the voltage of above p...

Page 13: ...05TX OOOOOOO 1 2 2 2 2 5 4 5 3 5 4 2 2 1 2 4 3 PAD ASSEMBLY PROCEDURES 1 ASSEMBLING OF PAD A Line shows folding direction Line shows folding direction Procedures 1 to 5 Pin mark side Other side Pin ma...

Page 14: ...A 905TX OOOOOOO 1 1 2 4 3 1 2 2 3 3 4 4 4 3 3 4 5 5 6 6 6 6 Line shows folding direction Procedures 1 to 5 PAD ASSEMBLY PROCEDURES 2 ASSEMBLING OF PAD B Other side Pin mark side Pin mark...

Page 15: ...A 905TX OOOOOOO 1 2 3 Pad A Pad B PAD ASSEMBLY PROCEDURES 3 INSERT PAD A TO PAD B...

Page 16: ...RIPTION 1 29091886 Pad A 2 29091887 Pad B 3 29095835 Protection sheet 0 515 650 550 4 29110149 Tape 5 282301 Staple 6 29110141 Tape 7 29053720 Carton box 8 29362820 Label EAN 10 24140456 RC 456S Remot...

Page 17: ...LIMITED Units 2102 2107 Metroplaza Tower I 223 Hing Fong Road Kwai Chung N T HONG KONG Tel 852 2429 3118 Fax 852 2428 9039 Sales Product Planning Div 2 1 Nisshin cho Neyagawa shi OSAKA 572 8540 JAPAN...

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