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4

Power Switch PCB
AF608645

SCHEMATIC

ADCOM PART NUMBER

DESCRIPTION

LOCATION
C921

12005700

SPARK KILLER 4700pF

KC472M

C922

12001605

MOV (120V operation)

TNR12G241K

C922

12001615

MOV (240V operation)

TNR12G431K

PW901

37001325

POWER SWITCH

TH903

31002512

THERMISTOR

SCK2R512

Protection Circuit Power Supply PCB
AF608665

SCHEMATIC

ADCOM PART NUMBER

DESCRIPTION

LOCATION
C701

12005070

CAPACITOR ELECTROLYTIC 1000uF 35V

C702

12005120

CAPACITOR ELECTROLYTIC 220uF 16V

D701

16001530

BRIDGE

F701

19000100

FUSE

1A 250V

IC701

21007800

REGULATOR IC

NJM7812A

TT002

24005002

STANDBY TRANSFORMER

Other Hardware

SCHEMATIC

ADCOM PART NUMBER

DESCRIPTION

LOCATION
D901,D902

16001540

BRIDGE RECTIFIER

MP154

F001

19000800

FUSE (120VAC operation)

8A 250V

F001

19000400

FUSE (240VAC operation)

4A 250V

20005200

FUSE HOLDER

D001, D002

16001204

THERMAL LED (Red)

LTL-1204A

16001204

POWER LED (Red)

LTL-1204A

16001254

DISTORTION LED (Yellow)

LTL-1254A

11001155

PLASTIC POWER BUTTON

11001040

BUTTON SPRING

11001165

BUTTON MOUNTING RING

11001170

CLEAR BUTTON INSERT

15001050

POWER CORD

15001150

CORD STOPPER

13005403

PRINTED REAR CHASSIS

24005401

POWER TRANS. (VER. 2)

22001170

INPUT JACK (VER. 2)

13005400

TOP COVER

13001020

FOOT

30005800

SPEAKER POST (VER. 2)

13005401

FRONT PANEL

Содержание GFA-5400

Страница 1: ...OF CONTENTS Introduction 1 Version 1 vs Version 2 1 Test Procedures 1 Parts List 2 Specifications 6 Chassis Layout 7 Version 1 Schematic 8 Version 2 Schematic 9 10 Timber Lane Marlboro NJ 07746 USA T...

Страница 2: ...an 2 THD AC power source 8 ohm resistive load except slew rate and a signal source of not more than 600 ohms An 80kHz low pass filter is employed during THD distortion measurements Signal to noise mea...

Страница 3: ...F608635 SCHEMATIC ADCOM PART NUMBER DESCRIPTION LOCATION C601 C602 12003175 CAPACITOR STYROL 390pF 125V C603 C604 12001260 CAPACITOR MP 2 2uF 100V C605 C606 12005470 CAPACITOR ELECTROLYTIC 47uF 100V C...

Страница 4: ...1 R627 R630 27001565 RESISTOR ROED 221 1 4W 1 R631 R634 27001565 RESISTOR ROED 221 1 4W 1 R635 R636 27004061 RESISTOR ROED 51K 1 4W 1 R637 R638 27001515 RESISTOR ROED 4 75 1 4W 1 R639 R642 27002010 R...

Страница 5: ...07800 REGULATOR IC NJM7812A TT002 24005002 STANDBY TRANSFORMER Other Hardware SCHEMATIC ADCOM PART NUMBER DESCRIPTION LOCATION D901 D902 16001540 BRIDGE RECTIFIER MP154 F001 19000800 FUSE 120VAC opera...

Страница 6: ...MER Note 1 Matched IRFP240 and IRFP9240 Due to manufacturing variations in the turn on voltage of these devices these parts must be replaced in matched sets of 3 If any one of the output devices fails...

Страница 7: ...0 07 20kHz 0 14 THD Noise at 200 watts into 4 ohms Typical 20Hz 0 018 1kHz 0 02 10kHz 0 08 20kHz 0 165 Frequency Response 1 Watt into 8 ohms 10Hz to 20kHz 0 0 25dB Power Bandwidth 3dB 3Hz to 130kHz D...

Страница 8: ......

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