ONKYO A-9555 - Service Manual Immediate Download

A-9555

SERVICE MANUAL

INTEGRATED AMPLIFIER

Black, Silver and Golden models

MODEL

A-9555

Ref. No. 3920

122005

G UGT, G MGT

G UDT, G MDT

G UGR, G MGR

220-230V AC, 50/60Hz

120V AC, 60Hz

220-230V AC, 50/60Hz

120V AC, 60Hz

230-240V AC, 50Hz

B UDC, B MDC

B UPP, B MPP

120V AC, 60Hz

230-240V AC, 50Hz

S UDC, S MDC

S UPP, S MPP

RC-627S

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.

A-9555

SPECIFICATIONS

Power output :

Dynamic power :

THD (total harmonic distortion) :

Damping factor :

Input sensitivity and impedance :

Output level and impedance :

Phono overload :

Frequency response :

Tone control :

SN ratio :

Speaker impedance :

Power supply :

Power consumption :

Stand-by power consumption :

Dimensions (W x H x D) :

Weight:

Analog inputs :

Analog outputs :

Speaker outputs :

Phones :

100 W + 100 W (8

, 1 kHz, DIN)

200 W + 200 W (4

, 1 kHz, JEITA)

230 W + 230 W (3

, Front)

200 W + 200 W (4

, Front)

120 W + 120W (8

, Front)

0.08 % (1 kHz, 1 W)

25 (Front, 1 kHz, 8

)

200 mV, 50 k

(CD)

2.5 mV, 50 k

(PHONO MM)

200 mV, 2.2 k

(REC OUT)

70 mV (MM, 1 kHz, 0.5 %)

10 Hz - 60 kHz, +1 dB -3 dB (CD)

+10 dB, -10 dB, 100 Hz (BASS)

+10 dB, -10 dB, 20 kHz (TREBLE)

+10 dB, 50 Hz (LOUDNESS)

+2 dB, 10 kHz (LOUDNESS)

100 dB (CD, IHF-A)

70 dB (PHONO, IHF-A)

4 - 16

AC 230-240 V, 50 Hz

AC 220-230 V, 50/60 Hz

AC 120 V, 60 Hz

125 W

0.3 W

435 x 148 x 431 mm

13.0 kg

PHONO, CD, TUNER, TAPE, MD, HDD, LINE

MD, TAPE

2 (A, B)

1

Specifications and features are subject to change without notice.

A-9555

SERVICE PROCEDURE

1. Replacing the fuses

REF.NO.

F901

PART NO.

252260GR

252276GR

DESCRIPTION

6.3A-T/UL-ST2

3.15A-SE-TL250V

This symbol located near the fuse indicates that the

fuse used is show operating type, For continued protection against

fire hazard, 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 de meme

type. Ce demier est indique la qu le present symbol est apposre.

PART NAME

FUSE

Q'TY

1

REMARKS

<DC, DT>

<PP>

<GT, GR>

2. Initialize the unit.

(1) Press and hold down the PURE DIRECT button, then press the LOUDNESS button.

All indicators light up

(2) Disconnect the AC power cord from a wall outlet.

3. Setting position before shipment.

(1) POWER switch

: ON

(2) BASS

: CENTER

(3) TREBLE

: CENTER

(4) SPEAKER SELECTOR

: SPEAKER A

(5) VOLUME

: MIN.

<Notes>

<DC> : Canadian model

<PP> : European model

<GT> : Asian model

<DT> : Taiwanese model

<GR> : Chinese model

A-9555

EXPLODED VIEW

A083

x 4 pcs.

A082

x 2 pcs.

P101A

x 2 pcs.

A045

x 2 pcs.

A085

x 2 pcs.

A085

x 2 pcs.

A045

x 2 pcs.

A046

x 2 pcs.

A046

x 2 pcs.

A048

x 3 pcs.

A048

x 3 pcs.

A036

x 3 pcs.

A035

x 2 pcs.

A100

A104

x16 pcs.

A139

x 2 pcs.

E401

x 8 pcs.

A002

x 10 pcs.

A002

x 4 pcs.

A002

x 6 pcs.

A002

x 2 pcs.

A138

x 3 pcs.

A123

x 2 pcs.

A002

x 2 pcs.

A061

x 4 pcs.

A033

x 4 pcs.

A033

x 7 pcs.

A030

x 4 pcs.

A063

x 4 pcs.

A064

x 4 pcs.

A026

x 4 pcs.

A022

x 4 pcs.

A025

x 4 pcs.

A062

x 4 pcs.

A084

x 2 pcs.

A034

x 4 pcs.

A123

x 2 pcs.

A130

x 3 pcs.

A137

x 3 pcs.

A142

x 2 pcs.

A128

x 4 pcs.

A125

x 3 pcs.

A126

x 3 pcs.

A001

A034

A131

A009

A006

A053

A008

A052

A051

A145

A029

A116

A084

A117

A110

A121

A145

A021

A122

A127

A105

A124

A141

A140

U05

A081

A135

U13

U12

U01

U06

U03

U02

P212

U07

U09

F901

F901C

A103

A102

A043

A086

A043

A101

U11

T911

U08

A037

A963

x 8 pcs.

A-9555

BLOCK DIAGRAM

A-9555

REM

IN

POWER

+5.6V

5V

12V

RELAY

+12V

AC IN

FUSE

PHONO

CD

TUNER

LINE

HDD

NJW1157

VL DIGITAL

MICROPROCESSOR

BACK UP

KEY / INPUT SELECTOR

RI

PHONES

INTERFACE

RI

HEAD PHONE AMP.

+/-15V

LOUDNESS

TONE

+/-15V

+/-7V

POWER AMP.

52

51

65

64

63

62

61

60

59

58

57

56

55

54

53

48

46

42

44

30

28

29

21

26

24

22

25

23

43

41

74

73

71

70

69

68

67

66

27

45

47

94

86

8

1

2

3

4

5

6

7

80

81

82

87

83

84

85

88

89

90

95

91

92

93

+

ST

ANDBY

LOUDNESS

PURE

DIRECT

VO

L

U

M

E

LINE

HDD

PHONO

CD

TUNER

TA

P

E

MD

A

PHONO

EQUALIZER AMP.

LOUDNESS

MUTING

SPEAKER

DETECTION

SPEAKER

DETECTION

RELAY

LPF

RELAY

PURE

DIRECT

INPUT SELECTOR

MUTE

REMOTE SENSOR

MAIN

TRANS

.

SUB TRANS.

POWER AMP.

RED

ORANGE

DRIVER AMP.

MODULATOR

MICROPROCESSOR

BROWN

BLUE

PHONO AMP.

SELECTOR

ANALOG

VOLUME

GREEN

SPEAKERS A

L

R

SPEAKERS B

L

R

TAPE

IN

OUT

MD

IN

OUT

A

1

2

3

4

5

B

C

DE

FG

H