Rotel RB-1050 Manuel utilisateur

Technical

Manual

STEREO/MONO POWER AMPLIFIER

RB-1050

Table of Contents

Specification

Specification...................................... 1

Parts List ........................................... 2~3

Adjustment........................................ 3

Case Outlines.................................... 4

Note On Safety.................................. 4

PCB Assembly .................................. 5~6

Schematic Diagram .......................... 7~8

Continuous Power Output 70 watts/ch

(20 - 20 kHz, <0.03%, 8 ohms)

Total Harmonic Distortion <0.03 %

(20 - 20 kHz, 8 ohms)

Intermodulation Distortion <0.03 %

(60 Hz : 7 kHz 4 : 1)

Frequency Response (±1 db) 10 Hz - 100 kHz

Damping Factor (20-20,000 Hz, 8 ohms) 500

Speaker Impedance (Normal mode) 4 ohms minimum

Signal to Noise Ratio (IHF A network) 116 dB

Input Impedance / Sensitivity 33 k ohms / 1.0 volt

Power Requirements 115 volts, 60 Hz (U.S. version)

230 volts, 50 Hz (European version)

Power Consumption 250 Watts

Dimensions (W x H x D) 430 x 92 x 350 mm

1615/16 x 35/8 x 1313/16 ins.

Weight (net) 8.1 kg / 17.86 lb.

SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU,

TOKYO 150-0045, JAPAN

Serial. NO.

Beginning

Quality Uncompromised

Y-329A-000125C/S-S

Parts List-1

C601.602

C603.604

C605.606

C607.608

C609.610

C611.612

C613-616

C617.618

C623.624

C651.652

C653

C654

C701.702

C703

C704

C705

C706

C707

C708

C901-908

C909-912

C913

D601-608

D609-612

D651.652

D653

D654

D701.702

D901.902

D903

D904.905

F601-604

IC651

IC701

PJ1.2

Q601-606

Q607-612

Q613.614

Q615.616

Q619.620

Q621.622

Q651.652

Q653-656

Q657-659

Q701-704

Q902

R601.602

R603.604

R605.606

R607.608

R609.910

R611.612

R613.614

R615.616

R617.618

X-1296-01 PCB ASSEMBLY

041 50BGF4R7M

044 TFKP2-2A681H

044 FSC160V221H

041 25BGF100M

044 FSC160V331H

041 50BGF10M

044 FSC160V561H

044 FSC160V471H

044 KT18-2A104K

041 UTES1E100-FB

041 UTES1E101-FB

041 UTES1E470-FB

044 50MSAN104J

042 TP50V183J

041 UTES1E100-FB

044 50MSAN104J

042 TP50V103J

041 TUTES1C471-TF

041 UTES1E101-FB

043 TC500V103

041 ALC20S1022DF ※

041 UTES1J221

034 T1N4148-86

034 T1N4003-TB

034 T1N4148-86

034 TRD5.6JST1

034 T1N4148-86

034 BR84 ※

034 T1N4148-86

034 T1N4003-TB※

036 5ST3.15※

031 MPC1237HA

031 NJM555D

066 4TR-2709#3

033 TC2362-FG

033 TA1016-FG

033 B631-EF

033 D600-EF

033 TC3478A-LKU

033 TA1376A-LKU

032 TC536-FG

032 TA608-FG

032 TC536-FG

054 EE10-102

054 EE10-333

054 TMFR4470R

054 TMFR401K5

054 TMFR4270R

054 TMFR4220R

054 TMF1/4-5600F

054 TMFR401K5

054 TMFR4270R

CAPACITOR ELEC.50V4.7UF

CAPACITOR FILM 100V680PF

CAPACITOR STYROL 160V220PF

CAPACITOR ELEC.25V100UF

CAPACITOR STYROL 160V330PF

CAPACITOR ELEC.50V10UF

CAPACITOR STYROL 160V560PF

CAPACITOR STYROL 160V470PF

CAPACITOR FILM 100V0.1UF

CAPACITOR ELEC.25V10UF

CAPACITOR ELEC.25V100UF

CAPACITOR ELEC.25V47UF

CAPACITOR FILM 50V0.1UF

CAPACITOR MYLAR 50V0.018UF

CAPACITOR ELEC.25V10UF

CAPACITOR FILM 50V0.1UF

CAPACITOR MYLAR 50V0.01UF

CAPACITOR ELEC.16V470UF

CAPACITOR ELEC.25V100UF

CAPACITOR CERA.500V0.01UF

CAPACITOR ELEC.50V8200UF

CAPACITOR ELEC.63V220UF

DIODE

ZENER DIODE

DIODE

BRIDGED DIODE

DIODE

MINI FUSE 250VT3.15A

IC(PROTECTION)

IC(TIMER)

2P PINJACK

TRANSISTOR(2SC2362K-FG)

TRANSISTOR(2SA1016K-FG)

TRANSISTOR(2SB631K-EF)

TRANSISTOR(2SD600K-EF)

TRANSISTOR(2SC3478A-LKU)

TRANSISTOR(2SA1376A-LKU)

TRANSISTOR(2SC536K-FG)

TRANSISTOR(2SA608K-FG)

TRANSISTOR(2SC536K-FG)

RESISTOR METAL 1K

RESISTOR METAL 33K

RESISTOR METAL 1% 470R

RESISTOR METAL 1% 1.5K

RESISTOR METAL 1% 270R

RESISTOR METAL 1% 220R

RESISTOR MRS25 560R

RESISTOR METAL 1% 1.5K

RESISTOR METAL 1% 270R

R619.620

R621.622

R623.624

R625.626

R627.628

R629.630

R631.632

R633.634

R635.636

R639-642

R645.646

R647.648

R651.652

R653.654

R655-658

R661.662

R663.664

R665.666

R667.668

R669.670

R671.672

R673.674

R675.676

R677.678

R679

R680

R681

R682

R683

R684

R685.686

R687.688

R701.702

R703

R704

R705

R706

R707

R708.709

R710

R711

R712

R713

R720

R901

R902

R903

R904

R905

R921

RY601

RY901

SP1

TH651.652

VR601.602

054 TMFR4220R

054 TMFR4047K

054 TMFR4100R

054 TMF1/4-6801F

054 TMF1/4-3901F

054 TMFR4100R

054 TMFR4001K

054 TMFR4047R

054 NIR2-0.22JF

054 1WS10JF

054 TMFR4012K

054 TMF3300

054 TMFR4220R

054 TMF8200

054 TMF2202

054 TMF1502

053 CR14-681J-A

053 CR14-273J-A

053 CR14-122J-A

053 CR14-472J-A

053 CR14-473J-A

053 CR14-104J-A

053 CR14-153J-A

053 CR14-563J-A

053 CR14-153J-A

053 CR14-104J-A

053 CR14-474J-A

053 CR14-682J-A

053 CR14-182J-A

053 CR14-124J-A

053 CR14-104J-A

053 CR14-224J-A

053 CR14-124J-A

053 CR14-103J-A

053 CR14-101J-A

053 CR14-473J-A

053 CR14-104J-A

053 CR14-105J-A

053 CR14-473J-A

053 CR14-564J-A

054 1WS3.3KJF

053 CR14-223J-A

054 1WS1.5KJF

053 CR14-822J-A

054 ERQ12AJ2R2P※

054 1WS1.5KJF

053 CR14-222J-A

063 DH2TU-24

063 DH2U-24※

067 C-4493A00

034 TTC-503

051 SFR002-222

RESISTOR METAL 1% 220R

RESISTOR METAL 1% 47K

RESISTOR METAL 1% 100R

RESISTOR MRS25 6.8K

RESISTOR MRS25 3.9K

RESISTOR METAL 1% 100R

RESISTOR METAL 1% 1K

RESISTOR METAL 1% 47R

RESISTOR METAL 2W 0.22R

RESISTOR METAL 1W 10R

RESISTOR METAL 1% 12K

RESISTOR METAL 330R

RESISTOR METAL 1% 220R

RESISTOR METAL 820R

RESISTOR METAL 22K

RESISTOR METAL 15K

RESISTOR CARBON 680R

RESISTOR CARBON 27K

RESISTOR CARBON 1.2K

RESISTOR CARBON 4.7K

RESISTOR CARBON 47K

RESISTOR CARBON 100K

RESISTOR CARBON 15K

RESISTOR CARBON 56K

RESISTOR CARBON 15K

RESISTOR CARBON 100K

RESISTOR CARBON 470K

RESISTOR CARBON 6.8K

RESISTOR CARBON 1.8K

RESISTOR CARBON 120K

RESISTOR CARBON 100K

RESISTOR CARBON 220K

RESISTOR CARBON 120K

RESISTOR CARBON 10K

RESISTOR CARBON 100R

RESISTOR CARBON 47K

RESISTOR CARBON 100K

RESISTOR CARBON 1M

RESISTOR CARBON 47K

RESISTOR CARBON 560K

RESISTOR METAL 1W 3.3K

RESISTOR CARBON 22K

RESISTOR METAL 1W 1.5K

RESISTOR CARBON 8.2K

FUSIBLE RESISTOR 2.2R

RESISTOR METAL 1W 1.5K

RESISTOR CARBON 2.2K

RELAY (SPEAKER)

RELAY (POWER)

SPEAKER TERMINAL

THERMISTOR

SEMI-FIXED RESISTOR 2.2K

SYMBOL PARTS NO. DESCRIPTION SYMBOL PARTS NO. DESCRIPTION

Parts List-2

C710

D703.704

HJ1.2

IC702

Q705.706

Q707

R714

R715

R716

R717

R718

R719

R757

S701

VR001.002

C001

S901

Q617.618

Q623.624

Q625.626

Q627.628

Q631.632

069 C-3417A

X-1296-02 PCB ASSEMBLY

041 UTES1H2R2-FB

034 T1N4148-86

065 YKB21-5103A

031 PC817B

032 TA608-FG

032 TC536-FG

053 CR14-102J-A

053 CR14-471J-A

053 CR14-103J-A

053 CR14-473J-A

053 CR14-104J-A

053 CR14-102J-A

053 CR14-224J-A

064 C-4660A00

X-1296-03.04 PCB ASSY

051 C-4170A31

X-1296-05 PCB ASSEMBLY

044 DE1307E472M※

061 C-4176A08※

HEAT SINKER ASSEMBLY

032 D1953

032 C4793

032 A1837

033 D1047-DE

FUSE CLIP

CAPACITOR ELEC.50V2.2UF

DIODE

MINI JACK

PHOTO COUPLER

TRANSISTOR(2SA608K-FG)

TRANSISTOR(2SC536K-FG)

RESISTOR CARBON 1K

RESISTOR CARBON 470R

RESISTOR CARBON 10K

RESISTOR CARBON 47K

RESISTOR CARBON 100K

RESISTOR CARBON 1K

RESISTOR CARBON 22K

SLIDE SWITCH

VARIABLE RESISTOR 50KB

SPARK KILLER

POWER SWITCH

TRANSISTOR(2SD1953)

DRIVER TRANSISTOR

(2SC4793)

DRIVER TRANSISTOR

(2SA1837)

POWER TRANSISTOR

(2SD1047-DE)

POWER TRANSISTOR

(2SD1047-DE)

Q633.634

Q637.638

033 B817-DE

017 RM4-18B00

019 TO-126

019 TO-3P

OTHERS

011 FP-508

011 TJ3-01A00

012 RV4-09A00

014 C-4713A01

014 RM4-07B00

015 RP-369

019 4TR-2823#2

019 4TSH-19#2

022 T-1055U01※

034 LTL1214A

034 SEL1124R

063 A-0710W-10A※

069 C-4629A01※

072 C-4621A01※

072 C-4622A01※

072 C-4623A01※

072 C-4624A01※

081 TJ3-10A00

081 Z-204

POWER TRANSISTOR

(2SB817-DE)

POWER TRANSISTOR

(2SB817-DE)

HEAT SINKER BOARD

INSULATION SHEET(S)

INSULATION SHEET(L)

SUB PANEL ASSY

H/S PANEL ASSY

PUSH KNOB 14F

UPPER COVER

BOTTOM BOARD

REAR CHASSIS

PLASTIC FOOT 24F

PLASTIC FOOT 50F

POWER TRANSFORMER

LED 2F

LED 1X5

BREAKER

AC INLET

AC CORD SET for STD

AC CORD SET for AUSTRALIA

AC CORD SET for UK

AC CORD SET for CEE

INSIDE CARTON

STYROL MOULDING

SYMBOL PARTS NO. DESCRIPTION SYMBOL PARTS NO. DESCRIPTION

NOTE ON SAFTY : Symbol ※Fire or electrical shock hazard. Only original parts should be used to replaced any part marked with symbol ※.

Any other component substitution (other than original type), may incease risk of fire or electrical shock hazard.

Instruments : DC milli–voltmeter

Notes : Prior to Bias Adjustment, run about 5minutes with rated output(8ohms) and

warm up Power Transistor and Heat Sink. Set input off.

Step

TP1

TP2

X-1296-01 PCB VR601

VR602X-1296-01 PCB

Coupling Location Adjust forAdjust

DC milli–voltmeter reads 4mV

Adjustment

Case Outlines

Service Note

Cautions during Inspection and Repair

1. Keep in mind the safety warnings

The safety instructions are shown as the labels or printings on the exterior, the

inside chassis or the parts, etc. Refer to the instructions when proceeding with

inspection or repair.

2. Use only the specified parts for replacement

The selected parts are used at critical area to reduce fire hazard or electrical

shock. So when replacing these parts where designaged with marks or

※marks on the schematic diagram or the parts list, ensure to use only the

same parts.

3. Ensure to dress back the AC (Mains) cord to the original position

If for some reason, the AC cord is moved or partially disassembled, ensure to re-

route or assemble back to the original position. The AC cord area is protected and

secured by tubing and insulation materials for the sake of safety, so that no loose

wire will touch and cause fire hazard and electrical shock.

4. Check for safety aspects after inspection or repair

Ensure all parts, such as screws or wires, removed during inspection or repair are

secured back to the original positions, and check visually for any anomaly. Also

check for any electrical leakage or resistance to maintain the safety.

2SA608K

2SA1016K

2SA1376A

2SC536K

2SC2362K

2SC3478A 2SB631K

2SD1953

2SD600K

2SA1837

2SC4793

2SB817

2SD1047

PC817B NJM555D MPC1237HA

5 6

PCB Assembly

7 8

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