Accuphase C-245 Service Manual

Authorized Technical Service Only

回路図

CAUTION /

These servicing instructions are for use by qualified personnel only.
To reduce the risk of electric shock do not perform any servicing
other than that contained in the operating instructions unless you are
qualified to do so. Refer all servicing to qualified service personnel.

ここに記載したサービスに関する指示事項は、サービスに関する資格を
有する者のみが使用するものです。感電防止の観点から、サービス資格
を有していない方は、取扱指示事項以外のサービスは絶対に行わないよ
うにして下さい。

Attention mark indicating critical components for safety.
Replacement must be made with identical parts of special part number.

このマークのついている部品は、安全上重要な部品です。
必ず指定されている部品番号の部品を使用して下さい。

EXPLANATION OF SURFACE PARTS

Decoration Screw
飾りﾈｼﾞ/2pcs.
(630-0304-14)

Washer
ﾜｯｼｬ/2pcs.
(637-9045-04)
Hexa Nut/六角ﾅｯﾄ
(633-2032-02)

Knob for INPUT
ﾂﾏﾐ
(381-4503-04)

★

Front Glass
ﾌﾛﾝﾄｶﾞﾗｽ
(172-0118-03)

Knob for VOLUME
ﾂﾏﾐ
(381-4501-14)

Binding Screw
ﾊﾞｲﾝﾄﾞﾈｼﾞ/4X8㎜
(604-0408-00)

Washer
平ﾜｯｼｬ
(637-0042-07)

Head Phone Jack
ﾍｯﾄﾞﾎﾝｼﾞｬｯｸ
(302-1204-00)

Head Phone Ass'y
ﾍｯﾄﾞﾎﾝAss'y
(716-0607-00)

★

Push-button for POWER
ﾌﾟｯｼｭﾎﾞﾀﾝ
(388-5044-03)

Binding Screw
ﾊﾞｲﾝﾄﾞﾈｼﾞ/4X8㎜
(604-0408-00)

Washer
平ﾜｯｼｬ/4pcs.
(637-0042-07)

Knod for OUTPUT,BASS,TREBLE
ﾂﾏﾐ/3pcs.
(380-1602-04)

Top Plate
ﾄｯﾌﾟﾌﾟﾚｰﾄ
(150-0069-12)

Sub Panel

★

ｻﾌﾞﾊﾟﾈﾙ
(134-0132-03)

Knob /COPY,TAPE,BAL
ﾂﾏﾐ /3pcs.
(380-1602-04)

Side panel
ｻｲﾄﾞﾊﾟﾈﾙ
(139-0035-22

Front Panel Assembly
ﾌﾛﾝﾄﾊﾟﾈﾙ Ass'y
(130-0163-11)

)

Side Panel
ｻｲﾄﾞﾊﾟﾈﾙ
(139-0035-22)

Panel End-Cap
ﾊﾟﾈﾙｴﾝﾄﾞｷｬｯﾌﾟ
(132-0098-04)

Bottom Plate
ﾎﾞﾄﾑﾌﾟﾚｰﾄ
(155-0063-02)

Foot
脚
(238-0023-00)

★

Push-button for TONE,COMP
ﾌﾟｯｼｭﾎﾞﾀﾝ
(388-5052-03)

－１－

Panel End-Cap
ﾊﾟﾈﾙｴﾝﾄﾞｷｬｯﾌﾟ
(132-0098-04)

★

Push-button for MONO, ATT
ﾌﾟｯｼｭﾎﾞﾀﾝ/MONO,ATT
(388-5052-03)

mark parts not supplied

★

FRONT VIEW

Knob for INPUT
ﾂﾏﾐ
(381-4503-04)

3

Head Phone Jack
ﾍｯﾄﾞﾎﾝｼﾞｬｯｸ
(302-1204-00)

Front Panel Assembly
ﾌﾛﾝﾄﾊﾟﾈﾙ Ass'y
(130-0163-11)

1

6

1 Front Panel=131-0163-11

ﾌﾛﾝﾄﾊﾟﾈﾙ

2 Sub-panel =134-0132-03

ｻﾌﾞﾊﾟﾈﾙ

3 Panel End Cap =132-0098-04

ﾊﾟﾈﾙｴﾝﾄﾞｷｬｯﾌﾟ

4 Front Glass=172-0118-03

ﾌﾛﾝﾄｶﾞﾗｽ

5 Decoration Screw=630-0304-14

飾りﾈｼﾞ

6 Push-button=388-5044-03

ﾌﾟｯｼｭﾎﾞﾀﾝ /POWER

5

8

4

2

Washer =637-9045-04
ﾜｯｼｬ
Hexa Nut=633-2032-02
六角ﾅｯﾄ

Coil Spring=285-1016-04
Frame=113-0100-14

10

Knob for COPY,TAPE,BAL

7

ﾂﾏﾐ
(380-1602-04)

1pce.

1pce.

2pcs.

1pce.

2pcs.

2pcs.

2pcs.

1pce.

1pce.
1pce.

9

7

7 Push-button=388-5052-03

ﾌﾟｯｼｭﾎﾞﾀﾝ /TONE,COMP,MONO,ATT

Coil Spring=285-1023-04
Frame=113-0111-14

8 Base for INPUT=170-0033-13

台座

Selector LED Ass'y=716-0565-00

9 Base for VOLUME=170-0032-04

台座

10 Indicator=173-9066-03

ｲﾝﾃﾞｨｹｰﾀ

Push Rivet=643-0303-50
ﾌﾟｯｼｭﾘﾍﾞｯﾄ

Knob for VOLUME
ﾂﾏﾐ
(381-4501-14)

3

4pcs.

4pcs.
4pcs.
1pce.

1pce.
1pce.

1pce.

2pcs.

REAR VIEW

Pin Jack
ﾋﾟﾝｼﾞｬｯｸ /5pcs.
(302-0411-00)

Pin Jack Cover
ﾋﾟﾝｼﾞｬｯｸｶﾊﾞ/22pcs.
(254-2015-04)

Decoration Plate
化粧板
(159-0059-04)

Decoration Screw

飾りﾈｼﾞ/4pcs.
(630-0302-00)

Foot
脚

(238-0023-00)

Binding Serw
ﾌﾞﾚｻﾞｰﾀｯﾌﾟﾀｲﾄ/4pcs.
(611-0414-02)

XLR (Cannon) Plug Receptacle
ｵｰﾃﾞｨｵｺﾈｸﾀﾌﾟﾗｸﾞ/2pcs.
(301-8013-00)

Connector Cover/ Male
ｺﾈｸﾀｶﾊﾞ/ 2pcs.
(254-2011-00)

XLR (Cannon)Jack Receptacle
ｵｰﾃﾞｨｵｺﾈｸﾀｼﾞｬｯｸ/6pcs.
(302-8011-00)

Connector Cover / Female
ｺﾈｸﾀｶﾊﾞ/ 6pcs.
(254-2012-00)

Pin Jack
ﾋﾟﾝｼﾞｬｯｸ/1pce.
(302-0209-00

Rear Panel
ﾊﾞｯｸﾊﾟﾈﾙ
(135-0152-02)

AC Outlet
/J type only
ACｿｹｯﾄ
(305-1209-00)

AC Inlet
AC ｺﾈｸﾀﾌﾟﾗｸﾞ
(301-3304-00)
＊Power Supply Cord

電源ｺｰﾄﾞ
J type:680-1204-00
U,T type:680-2401-00
E type:680-3402-00

mark parts not supplied

★

)

－２－

TOP VIE

W

Electorlytic Capacitor
ｱﾙﾐ電解ｺﾝﾃﾞﾝｻ
C1,2,3,4:1800uF/25V
(CE04W1E182LXV)

Power Transformer
ﾊﾟﾜｰﾄﾗﾝｽ /1pcs.
(510-1037-00)

Power Transformer
ﾊﾟﾜｰﾄﾗﾝｽ /1pcs.
(510-1032-10)

Electorlytic Capacitor
ｱﾙﾐ電解ｺﾝﾃﾞﾝｻ
C5,6,7,8:3300uF/25V
(CE04W1E332CZ)

Input Selector Assembly
ｲﾝﾌﾟｯﾄｾﾚｸﾀ Ass'y
(716-0636-00)

Logic Assembly
ﾛｼﾞｯｸ Ass'y
(721-0065-00)

IO Relay Assembly
IOﾘﾚｰ Ass'y
(716-0625-00)

Tone Amp Assembly
ﾄｰﾝｱﾝﾌﾟ Ass'y
(712-0079-00)

Balance Input Amp Assembly
ﾊﾞﾗﾝｽ入力ｱﾝﾌﾟ Ass'y
(712-0077-00)

Balance Output Amp Assembly
ﾊﾞﾗﾝｽ出力ｱﾝﾌﾟ Ass'y
(712-0078-00)

Connector Board Assembly
ｺﾈｸﾀ ﾎﾞｰﾄﾞ Ass'y
(716-0608-00)

Line Amp Assembly
ﾗｲﾝｱﾝﾌﾟ Ass'y
(712-0076-00)

Volume Assembly
ﾎﾞﾘｭｰﾑ Ass'y
(716-0628-00)

Variable Resistor
可変抵抗器
(575-2025-10)

Balance Volume
Assembly
ﾊﾞﾗﾝｽﾎﾞﾘｭｰﾑ Ass'y
(716-0610-00)

Mother Board Assembly
ﾏｻﾞｰﾎﾞｰﾄﾞ Ass'y
(716-0624-10)

Switch Assembly
ｽｲｯﾁ Ass'y
(716-0613-00)

mark parts not supplied

★

Attention mark indicating critical components for safety.
Replacement must be made with identical parts of special part number.

このマークのついている部品は、安全上重要な部品です。
必ず指定されている部品番号の部品を使用して下さい。

Balance Volume
Assembly
ﾊﾞﾗﾝｽﾎﾞﾘｭｰﾑ Ass'y
(716-0610-00)

Tone Amp Assembly
ﾄｰﾝｱﾝﾌﾟ Ass'y
(712-0079-00)

Terminal / 端子
(313-4026-00)

Terminal / 端子
Voltage Selection
(313-4053-00)

Ceramic Capacitor
磁器ｺﾝﾃﾞﾝｻ
C001:0.01uF/400V
(CS17F2GA103MYAS)

Head Phone Assembly
ﾍｯﾄﾞﾎﾝ Ass'y
(716-0607-00)

Power Switch Assembly
ﾊﾟﾜｰｽｲｯﾁ Ass'y
(716-0606-00)

*Power Push Switch

ﾌﾟｯｼｭｽｲｯﾁ
(354-1024-00)

*Fuse

T500mA L AC250V
100-120V(310-1202-00)
T250mA L AC250V
220-240V(310-1101-00)

－３－

Input Selector Assembly
ｲﾝﾌﾟｯﾄｾﾚｸﾀ Ass'y
(716-0609-00)

Rotary Switch
ﾛｰﾀﾘｽｲｯﾁ
(339-0002-00)

Balance Volume
Assembly
ﾊﾞﾗﾝｽﾎﾞﾘｭｰﾑ Ass'y
(716-0610-00)

Variable Resistor
可変抵抗器/VR1:50kΩ-A
(575-2021-00)

Volume Assembly
ﾎﾞﾘｭｰﾑ Ass'y
(716-0611-00)

Head Phone Assembly
ﾍｯﾄﾞﾎﾝ Ass'y
(716-0607-00)

Head Phone Jack
ﾍｯﾄﾞﾎﾝｼﾞｬｯｸ
(302-1205-00)

Switch Assembly
ｽｲｯﾁ Ass'y
(716-0613-00)

Power Push Switch
ﾌﾟｯｼｭｽｲｯﾁ
(354-1024-00)

Power Switch Assembly
ﾊﾟﾜｰｽｲｯﾁ Ass'y
(716-0606-00)

Attention mark indicating critical components for safety.
Replacement must be made with identical parts of special part number.

このマークのついている部品は、安全上重要な部品です。
必ず指定されている部品番号の部品を使用して下さい。

Indicator Fixed
Bracket
ｲﾝﾃﾞｨｹｰﾀ取付金具
(247-0944-03)

Tone Amp Assembly
ﾄｰﾝｱﾝﾌﾟ Ass'y
(712-0079-00)

Display Assembly
ﾃﾞｨｽﾌﾟﾚｨ Ass'y
(726-0122-00)

Foot
脚
(238-0023-00)

Panel End-cap
ﾊﾟﾈﾙｴﾝﾄﾞｷｬｯﾌﾟ
(132-0098-04)

Knob Base
台座/VOLUME
(170-0032-04)

Push Button
ﾌﾟｯｼｭﾎﾞﾀﾝ
(388-5052-03)

Push-button

Frame

ﾌﾟﾕｼｭﾎﾞﾀﾝﾌﾚｰﾑ
(113-0111-14)
Coil Spring
ｺｲﾙｽﾌﾟﾘﾝｸﾞ

Push Button
ﾌﾟｯｼｭﾎﾞﾀﾝ
(388-5052-03)

Push-button

Frame

ﾌﾟﾕｼｭﾎﾞﾀﾝﾌﾚｰﾑ
(113-0111-14)
Coil Spring
ｺｲﾙｽﾌﾟﾘﾝｸﾞ

－４－

Panel End-cap
ﾊﾟﾈﾙｴﾝﾄﾞｷｬｯﾌﾟ
(132-0098-04)

Knob Base
台座/SELECTOR
(170-0033-13)

ush Button for POWER

P

ﾌﾟｯｼｭﾎﾞﾀﾝ
(388-5044-03)

Push-button Frame
ﾌﾟﾕｼｭﾎﾞﾀﾝﾌﾚｰﾑ
(113-0100-14)
Coil Spring
ｺｲﾙｽﾌﾟﾘﾝｸﾞ
(285-1016-04)

mark parts not supplied

★

MISCELLANEOUS(

本体その他使用部品 ）

No.

PL1～3

C1～4
C5～8

C001

Packing
Material
梱包材

Description(

PC Board for
Line Ass'y
Balance Input Ass'y
Balance Output Ass'y
Tone Amp Ass'y
IO Relay Ass'y
Mother Board Ass'y
Logic Ass'y

Pilot Lamp /3pcs.
ﾊﾟｲﾛｯﾄﾗﾝﾌﾟ

Fuse T500mA L 250V
ﾌｭｰｽﾞ T250mA L 250V

Variable Resistor
可変抵抗器

Electrolytic Capacitor
ｱﾙﾐ電解ｺﾝﾃﾞﾝｻ

Ceramic Capacitor
磁器ｺﾝﾃﾞﾝｻ

Carton Box
ﾀﾞﾝﾎﾞｰﾙｹｰｽ

Top Pad
ﾄｯﾌﾟﾊﾟｯﾄﾞ
Bottom Pad
ﾎﾞﾄﾑﾊﾟｯﾄ

Top Board
天地当板

Cover
保護ｶﾊﾞ

Accessories Case
付属品ｹｰｽ

Wrapping Sheet/ｼｰﾄ
Bag for AC Cord
ﾋﾞﾆｰﾙ袋 Remote Commander

Cover for Remoote
保護ｶﾊﾞ

部品名

Audio Cord
Manual

)

Part No.(部品No.)

115-1334-00
115-1335-00
115-1336-00
115-1340-00
115-1339-00
115-1337-00
115-1338-00

176-7501-00

310-1052-00
310-1022-00

575-2021-10

CE04W1E182LXV
CE04W1E332CZ

CS17F2GA103MYAS

801-0234-14

803-0324-00
803-0325-00
803-0327-00
803-0338-00

803-0033-14

810-4843-04

801-0251-10

810-4545-04
810-2030-04
810-2030-04
810-2030-04
812-2435-04

812-0727-00

Remarks(備考)

for 100-120V
for 220-240V

VOLUME Ass'y

1800uF/25V
3300uF/25V

0.01uF/400V

Front（前）
Rear （後）
Front（前）
Rear （後）

本体 保護ｶﾊﾞ

ACｺｰﾄﾞ
ﾘﾓｺﾝ
ｵｰﾃﾞｨｵｺｰﾄﾞ
取説用

ﾘﾓｺﾝ用

No.

Screws
for
ﾈｼﾞ類

Accessories
付属品

Description(

Front Panel /ﾌﾛﾝﾄﾊﾟﾈﾙ用

Binding Screw /ﾊﾞｲﾝﾄﾞﾂﾒﾂｷ(上
Binding Screw /ﾊﾞｲﾝﾄﾞﾂﾒﾂｷ(下

Top Plate Ass'y /ﾄｯﾌﾟﾌﾟﾚｰﾄ

Round Head Screw /ﾌﾞﾚｻﾞｰﾂﾒﾂｷ
Binding Screw /ﾊﾞｲﾝﾄﾞﾂﾒﾂｷﾈｼﾞ

Side Panel /ｻｲﾄﾞﾊﾟﾈﾙ

Oval Head Screw /丸ｻﾗﾈｼﾞ
Binding Screw /ﾊﾞｲﾝﾄﾞﾈｼﾞ
Washer /ﾜｯｼｬ

Bottom Plate /ﾎﾞﾄﾑﾌﾟﾚｰﾄ

Binding Screw /ﾊﾞｲﾝﾄﾞﾂﾒﾂｷﾈｼﾞ

Foot / 脚用

Binding Screw /ﾊﾞｲﾝﾄﾞﾈｼﾞ

Option Panel/ ｵﾌﾟｼｮﾝﾊﾟﾈﾙ

Decoration Bolt /飾りﾈｼﾞ
Nylon Washer /ﾅｲﾛﾝﾜｯｼｬ

Power Transforer/ﾊﾟﾜｰﾄﾗﾝｽ用

Binding Screw /ﾊﾞｲﾝﾄﾞﾈｼﾞ
Spring Washer /ｽﾌﾟﾘﾝｸﾞﾜｯｼｬ

Owner's Manual
取扱説明書
Caution Notes
注意書

Power Supply Cord (J type)
電源ｺｰﾄﾞ (U type)

Remote Commander /RC-20
ﾘﾓｰﾄｺﾝﾄﾛｰﾙ
Battery / 単3電池

Audio Cord (L)ｵｰﾃﾞｨｵｺｰﾄﾞ(白
Audio Cord (R)ｵｰﾃﾞｨｵｺｰﾄﾞ(赤

Pin Jack Cover / ﾋﾟﾝｼﾞｬｯｸｶﾊﾞｰ

Connector Cover for male
Connector Cover for female

ｺﾈｸﾀｶﾊﾞ

部品名

)

(E type)

Part No.

631-0047-00

)

631-0047-00

)

616-0306-02
631-0054-00

612-0308-00
604-0408-00
637-0042-07

631-0054-00

611-0414-02

630-0302-04
637-9045-04

604-0408-02
638-0041-02

820-3204-00
820-0204-00
821-0011-00
821-0010-00

680-1204-00
680-2401-00
680-3402-00

729-0020-00

569-0004-00

685-0416-10

)

685-0417-10

)

254-2015-04

254-2011-00
254-2012-00

Remarks

3×8mm 4pcs.
3×8mm 2pcs.

3×6mm 6pcs.
3×10mm 2pcs.

3×8mm 4pcs.
4×8mm 4pcs.
4mm dia. 4pcs.

3×10mm 9pcs.

4×14mm 4pcs.

4pcs.
4pcs.

4×8mm 8pcs.

8pcs.

English
Japanese
English
Japanese

2-conductor
2-conductor
3-conductor

R6/UM-3

White /1m
Red /1m

22pcs.

2pcs.出力用
6pcs.入力用

INPUT SELECTOR

CD

CD BAL

TUNER

OPTION-1

LINE-1
LINE-2

LINE-BAL

OPTION-2

＋

VOLUME Control

－

－ 5 －

LineAmpAssembly (712-0076-00)

Q9

Q11

K1

C4

Diode D1,2 1SR139-400
ﾀﾞｲｵｰﾄﾞ

Q13

Zener Diode D3,4 RD3.0EB1
ﾂｪﾅｰﾀﾞｲｵｰﾄﾞ

C7

Electorlytic C1 CE04W1H2R2CA 100uF /16V

C8

Capacitor C4 CE04W1E101AVF 100uF /25V
ｱﾙﾐ電解ｺﾝﾃﾞﾝｻ C5,6 CE04W2D2R2PW 2.2uF / 200V

Q14
C3

PPS Capacitor C2 CQ922HE1H101JR 100pF/50V

Q12

PPSｺﾝﾃﾞﾝｻ

Q10

Polyester Film Capacitor C3 CF922MF2E222KD-A 2,200pF/250V
ﾎﾟﾘｴｽﾃﾙｺﾝﾃﾞﾝｻ

Carbon Film Resistor R6,7 RD142EA753J 75kΩ 1/4W
炭素被膜抵抗器 R8,9 RD142EA103J 10kΩ 1/4W

Metal Film Resistor R16 RN142EK4990F 4.99Ω 1/4W
金属被膜抵抗器

Q5

Q3

Q1
Q7

Q8
Q2

Q4
Q6

C2

Connector Jack K1 307-0708-00
ｺﾈｸﾀｼﾞｬｯｸ

Transistor Q1,3,5 2SA1175-EL
ﾄﾗﾝｼﾞｽﾀ Q2,4,6 2AC2785-EL

Q7 2SC3329-BL
Q8 2SA1316-BL
Q9 2SA872A-E
Q10 2SC1775A-E
Q11 2SC1845-F
Q12 2SA992-F
Q13 2SC2547-D,E
Q14 2SA1085-D,E

C7,8 CE04W1E471VR 470uF / 25V

R1 RD142EA105J 1M Ω 1/4W
R2 RD142EA224J 200k Ω 1/4W
R3,4,5,18,20,21 RD142EA101J 100Ω 1/4W

R10,11 RD142EA100J 10Ω 1/4W
R12,13 RD142EA331J 330Ω 1/4W
R14,15 RD142EA4R7J 4.7Ω 1/4W
R17 RD142EA680GF 68Ω 1/4W
R19 RD142EA104J 100kΩ 1/4W
R22,23 RD142EA102J 1kΩ 1/4W
R24,25 RD142EA330J 330Ω 1/4W

Balance Input Assembly (712-0077-00)

Q2

Q6

Q4

C5

IC1

Q1
Q3
Q5

K1

Connector Jack K1 307-0913-00
ｺﾈｸﾀｼﾞｬｯｸ

Transistor Q1,4,5,8,10 2SA1175-EL
ﾄﾗﾝｼﾞｽﾀ Q2,3,6,7,9 2SC2785-EL

Diode D1,2 1SR139-400
ﾀﾞｲｵｰﾄﾞ

Q8

C10

Zener Diode D3,4 RD3.0EB1
ﾂｪﾅｰﾀﾞｲｵｰﾄﾞ

IC IC1 NJM5532D-D

Q10

Electrolytic Capacitor C1,2,8 CE04W1C101CA 100uF /16V
ｱﾙﾐ電解ｺﾝﾃﾞﾝｻ C9,10 CE04W1E390LXV 39uF / 25V

C12

C11

Polypropy Film Capacitor C3,4 CQ922M1H101K-B 100pF /250V
ﾎﾟﾘｴｽﾃﾙｺﾝﾃﾞﾝｻ C6 CQ922M1H331K-B 330pF /50V

C9

Q9

PPS Capacitor C5 CQ922HE1H331JR 330pF /50V

Q7

PPSｺﾝﾃﾞﾝｻ

Carbon Film Resistor R1,2 RD142EA433J 43k Ω 1/4W
炭素被膜抵抗器 R3,4 RD142EA393J 39kΩ 1/4W

Metal Film Resistor R9,10 RN142EK2260F 2.26Ω 1/4W
金属被膜抵抗器

C11,12 CE04W1E471VR 470uF /25V
C13,14 CE04W1E470LXZ 47uF /25V

C7 CF922MF2E222KD-A 2.2kpF/250V

R5,6 RD142EA220J 22Ω 1/4W
R7,8 RD142EA221J 220Ω 1/4W
R11,12 RD142EA224J 220kΩ 1/4W
R13,14 RD142EA303J 30kΩ 1/4W
R15,16,19,20 RD142EA100J 10Ω 1/4W
R17,18 RD142EA361J 360Ω 1/4W
R21 RD142EA471J 470Ω 1/4W
R22 RD142EA104J 100kΩ 1/4W
R23,24,29,30 RD142EA101J 100Ω 1/4W
R25,26 RD142EA102J 1kΩ 1/4W
R27,28 RD142EA330J 330 Ω 1/4W

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