Rotel RB-1080 User manual

Technical

Manual

STEREO POWER AMPLIFIER

RB-1080

Table of Contents

Specification

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

Parts List .......................................... 2,3

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

Case Outlines................................... 3

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

PCB Assembly ................................. 4,6

Schematic Diagram.......................... 7,8

Continuous Power Output (20-20 kHz, ≤0.03%, 8 ohms) 200 watts/ch.

(20-20 kHz, ≤0.05%, 4 ohms) 300 watts/ch.

Total Harmonic Distortion (20 Hz-20 kHz, 8 ohms) ≤0.03%

Intermodulation Distortion (60 Hz: 7 kHz, 4:1) ≤0.03%

Frequency Response ≥10-100,000 Hz, ±1 dB

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

Speaker Impedance 4-16 ohms

Signal to Noise Ratio (IHF A network) 120 dB

Input Impedance/Sensitivity (RCA Inputs) 33 k Ohms/1.0 volt

(XLR Inputs) 33k Ohms/1.0 volt

Power Requirements 115 Volts, 60 Hz or

230 Volts, 50 Hz

Power Consumption 550 Watts

Dimensions (W, H, D) 440 x 127 x 385 mm

17.38 x 4.76 x 15.16” inches

Weight (net) 16.7 kg., 36.74 lb.

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

TOKYO 150-0045, JAPAN

Serial. NO.

Begining

Quality Uncompromised

Y-337A-00125M/S-S

Parts List-1

C601.602

C603.604

C607.608

C609.610

C611.612

C613-616

C623-626

C627.628

D601-608

D609-612

FU601-604

Q601-606

Q607-612

Q613.614

Q615.616

Q619.620

Q621.622

R601.602

R603.604

R605.606

R607-610

R611.612

R613.614

R615-618

R619.620

R621.622

R623.624

R625.626

R627.628

R629.630

R631.632

R633.634

R635-654

R657.658

R659-662

R663.664

R665.666

R667-670

TH601.602

VR601.602

C801

C802

C803

X-1177-01,02 PCB ASSY

041 50BGF4R7M

044 TFKP2-2A681H

041 25BGF100M

044 FSC160V331H

054 TMF1/4-3302F

041 50BGF10M

044 FSC160V561H

041 VX2A102S ※

044 FSC160V471H

034 T1N4148-86

034 T1N4003-TB

036 5ST6.3 ※

033 TC2362-FG

033 TA1016-FG

033 A1209-ST

033 C2911-ST

033 TC2910-RST

033 TA1208-RST

054 EE10-102

054 EE10-333

054 EE10-471

054 TMFR401K5

054 TMFR4220R

054 TMF1/4-5600F

054 TMFR401K5

054 TMFR4220R

054 TMFR4047K

054 TMFR4100R

054 TMF1/4-6801F

054 TMF1/4-3901F

054 TMFR4100R

054 TMFR4001K

054 TMFR4047R

054 MPC78-0.22F

054 TMFR415K4

054 2WS6.8KJF

054 TMFR4010R

054 TMF3300

054 TMFR4220R

034 TTC-503

051 SFR001-222

017 C-4378A01

019 TO-126

066 4TR-2487#7

066 4TR-2487#8

068 C-4349A04

069 C-3417A

069 C-4446A00

X-1237-02 PCB ASSEMBLY

069 C-4370A00

X-1237-03 PCB ASSEMBLY

041 UTES2A220-FB

041 UTES1E101-FB

041 UTES2A221 ※

CAPACITOR ELEC.50V4.7UF

CAPACITOR FILM 100V680PF

CAPACITOR ELEC.25V100UF

CAPACITOR STYROL 160V330PF

RESISTOR MRS25 33K

CAPACITOR ELEC.50V10UF

CAPACITOR STYROL 160V560PF

CAPACITOR ELEC.100V1000UF

CAPACITOR STYROL 160V470PF

DIODE

MINI FUSE 250VT6.3A

TRANSISTOR(2SC2362K-FG)

TRANSISTOR(2SA1016K-FG)

TRANSISTOR(2SA1209-ST)

TRANSISTOR(2SC2911-ST)

TRANSISTOR(2SC2910-RST)

TRANSISTOR(2SA1208-RST)

RESISTOR METAL 1K

RESISTIR METAL 33K

RESISTOR METAL 470R

RESISTOR METAL 1% 1.5K

RESISTOR METAL 1% 220R

RESISTOR MRS25 560R

RESISTOR METAL 1% 1.5K

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 1% 15.4K

RESISTOR METAL 2W 6.8K

RESISTOR METAL 1% 10R

RESISTOR METAL 330R

RESISTOR METAL 1% 220R

THERMISTOR

SEMI-FIXED RESISTOR 2.2K

HEAT SINKER

INSULATION SHEET

1P PINJACK (RED)

1P PINJACK (WHT)

3P CONNECTOR WIRE

FUSE CLIP

SCREW TERMINAL

CAPACITOR ELEC.100V22UF

CAPACITOR ELEC.25V100UF

CAPACITOR ELEC.100V220UF

C804

D801

D802

D803-806

D807.808

Q801-803

R801

R803

R804

R805

R806

R807

R809

R811.812

R813.814

R815.816

R817.818

C901.902

D901.902

Q901

Q902

R901.902

R903.904

RY901

S901

C501.502

C505-508

IC501.502

R501-504

R505-508

R509.510

C001

S901

C101

C102

D101

D102

F101

Q101

R101

R102

R103

RY101

T101

041 UTES2A220-FB ※

034 T1N4148-86

034 RD10EB

034 T1N4003-TB ※

034 T1N4148-86

032 TC2362-FG

054 1WS6.8KJF

053 CR14-104J-A

053 CR14-224J-A

053 CR14-104J-A

053 CR14-333J-A

053 CR14-104J-A

054 1WS6.8KJF

053 CR14-104J-A

053 CR14-183J-A

053 CR14-332J-A

053 CR14-273J-A

X-1237-04 PCB ASSEMBLY

041 25BGF470M

034 RD16EB

033 D600-EF

033 B631-EF

054 1WS2.2KJF

054 1WS5.6KJF

063 V23106-24

064 4TR-2341

017 C-4401A01

019 TO-126

X-1237-05,06 PCB ASSY

044 S50V100PJ

041 25BGF100M

031 AD711JN

054 TMFR4022K

054 TMFR4010K

054 TMFR4001K

066 C-4575A01

X-1283 PCB ASSEMBLY

044 DE1307E472M ※

061 C-4176A07 ※

X-1291-01 PCB ASSEMBLY

041 UTES1E471

044 DE1307E472M ※

034 W02M ※

034 T1N4148-86

036 5ST500 ※

032 TC3708-ST

054 1WS120JF

053 CR14-333J-A

053 CR14-152J-A

063 OZ-SH-112LM1 ※

022 T-1075N01 ※

069 C-3417A

CAPACITOR ELEC.100V22UF

DIODE

ZENER DIODE

DIODE

TRANSISTOR(2SC2362K-FG)

RESISTOR METAL 1W 6.8K

RESISTOR CARBON 100K

RESISTOR CARBON 220K

RESISTOR CARBON 100K

RESISTOR CARBON 33K

RESISTOR CARBON 100K

RESISTOR METAL 1W 6.8K

RESISTOR CARBON 100K

RESISTOR CARBON 18K

RESISTOR CARBON 3.3K

RESISTOR CARBON 27K

CAPACITOR ELEC.25V470UF

ZENER DIODE

TRANSISTOR(2SD600K-EF)

TRANSISTOR(2SB631K-EF)

RESISTOR METAL 1W 2.2K

RESISTOR METAL 1W 5.6K

RELAY (PROTECTION)

SLIDE SWITCH

HEAT SINKER

INSULATION SHEET

CAPACITOR STYROL 50V100PF

CAPACITOR ELEC.25V100UF

IC(OPE AMP)

RESISTOR METAL 1% 22K

RESISTOR METAL 1% 10K

RESISTOR METAL 1% 1K

CANNON CONNECTOR

SPARK KILLER

POWER SWITCH

CAPACITOR ELEC.25V470UF

SPARK KILLER

BRIDGED DIODE

DIODE

MINI FUSE 250VT500MA

TRANSISTOR

RESISTOR METAL 1W 120R

RESISTOR CARBON 33K

RESISTOR CARBON 1.5K

RELAY (POWER)

SUB TRANSFORMER

FUSE CLIP

SYMBOL PARTS NO. DESCRIPTION SYMBOL PARTS NO. DESCRIPTION

Parts List-2

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 Coupling

TP 3 - TP 1

TP 4 - TP 2

X-1177-01 PCB

X-1177-02 PCB

VR601

VR602

Location Adjust Adjust for

DC milli–voltmeter reads 7mV

Adjustment

Case Outline

D103.104

D105

D106

IC101

K103

R104

R105

S101

TJ101.102

Q617.618

Q623-632

Q633.634

Q635.636

Q637-646

X-1291-02 PCB ASSEMBLY

034 T1N4148-86

034 TRD12JST1

034 T1N4148-86

031 PC817B

068 C-4588A09

054 1WS1KJF

053 CR14-221J-A

064 C-4613A01

065 YKB21-5103A

HEAT SINKER ASSEMBLY

032 D1953

033 A1492-OPY

033 B817-DE

033 D1047-DE

033 C3856-OPY

017 PX4-06A00

019 TO-3P

OTHERS

011 FP-530

011 RV4-02A05

012 RV4-09A00

013 RM4-10A00T

014 RV3-07A01

DIODE

ZENER DIODE

DIODE

PHOTO COUPLER

CONNECTOR WITH WIRE

RESISTOR METAL 1W 1K

RESISTOR CARBON 220R

TOGGLE SWITCH (TRIGGER)

MINI JACK

TRANSISTOR(2SD1953)

POWER TRANSISTOR(2SA1492-OPY)

DRIVER TRANSISTOR(2SB817-DE)

DRIVER TRANSISTOR(2SD1047-DE)

POWER TRANSISTOR(2SC3856-OPY)

HEAT SINKER

INSULATION SHEET

SUB PANEL ASSY

H/S PANEL

PUSH KNOB 14F

EARTH PLATE

UPPER COVER

015 RP-381

019 4TSH-19#2

022 T-1037W04 ※

034 BR154 ※

034 SEL1124R

036 3AG125V12A ※

036 5ST6.3 ※

041 ALS30S1077XX ※

044 KT18-2A104K

054 2WS10JF

067 4TR-2744#1

067 4TR-2744#2

069 C-4200A01

069 C-4595A00

069 C-4637A00 ※

072 C-4392A02 ※

072 C-4393A03 ※

072 C-4423A03 ※

072 C-4639A01 ※

081 TK4-01A00

081 Z-200

REAR CHASSIS

PLASTIC FOOT 50F

POWER TRANSFORMER

POWER DIODE

LED 1X5

LONG FUSE 125V12A for STD

MINI FUSE 250VT6.3A for CEE

CAPACITOR ELEC.80V15000UF

CAPACITOR FILM 100V0.1UF

RESISTOR METAL 2W 10R

SPEAKER TERMINAL (RED)

SPEAKER TERMINAL (WHT)

LONG FUSE HOLDER for STD

MINI FUSE HOLDER for CEE

AC INLET

AC CORD SET for STD

AC CORD SET for CEE

AC CORD SET for AUSTRALIA

AC CORD SET for UK

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 increase risk of fire or electrical shock hazard.

2SA1016K

2SA1208

2SC2362K

2SC3708

2SC2910

2SB631K

2SA1209

2SD1953

2SD600K

2SC2911

2SA1492

2SB817

2SC3856

2SD1047

PC817B AD711JN

PCB Assembly

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.

PCB Assembly

5 6

7 8

Schematic Diagram

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