manualshive.com logo in svg

Adcom GFA-5002, Service Manual

The Adcom GFA-5002 Service Manual is an essential resource for owners of this high-performance amplifier. This comprehensive manual provides detailed instructions on setup, usage, and troubleshooting. Easily downloadable for free from manualshive.com, it ensures you have all the necessary information to optimize your audio experience.

Share
Download
background image

5 

 

 

 

JP701 

22001570 

DC Trigger Input Jack 

YK-5103A 

SW901 

37005006 

Ground Switch 

SS004-P022 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Other Hardware   

 

 

 

 

 

 

Schematic 

Part Number  Description 

 

Location 

 

 

 

 

30005002 

Speaker Binding Post 

4TR-3357 

 

19000500 

Fuse - 115V Models (U.S.) 

5A 125V 

 

19008250 

Fuse - 230V Models (Euro) 

2.5A 250V 

 

24005003 

Transformer 

TT-342-U 

 

37005002 

Vacation Switch 

R19-33FM2-2N 

 

16002249 

POWER/STANDBY LED 

VRPY3349S 

 

25001060 

AC Inlet 

4TR-2786 

 

13005004 

Printed Rear Chassis 

TRP-750A 

 

13001020 

Foot  

4TR-2823#1 24FX14H 

 

47005002 

Alum. Shield Board 

4TR-3400 

 

13005002 

Front Panel 

3TOZ-1 TFP-824 

 

11005002 

LED Ring (for Power LED) 

4TR-2209B#1 9F 

 

13005003 

Top Cover 

3TQA-5 

 

15001110 

AC Power Chord 115V (U.S.)  4TR-3403 SJT AWG16 

 

 

 

 

Summary of Contents for GFA-5002

Page 1: ...A 5002 TABLE OF CONTENTS Introduction 1 Test Procedures 1 Parts List 2 Voltage Conversion 6 Specifications 7 PCB Layout 8 Wiring Diagram 9 Schematic 10 10 Timber Lane Marlboro NJ 07746 USA Tel 732 683 2356 Fax 732 683 9790 Web http www adcom com ...

Page 2: ...VE 5kHz CORRECT BIAS ADJUSTMENT IS CRITICAL TO THE PERFORMANCE OF THIS AMPLIFIER MAXIMUM OUTPUT POWER MINIMUM THD AND HEAT DISSIPATION ARE AFFECTED BY THE BIAS SETTING AND MUST BE CORRECT TO MAINTAIN THE SONIC QUALITY AND LONGEVITY OF THE AMPLIFIER BIAS ALIGNMENT Prior to performing BIAS ALIGNMENT turn unit on and allow to idle with rated output 8 ohm for approximately 5 MINUTES before attempting ...

Page 3: ...2SC2362K Q607 Q608 33001016 PNP Transistor 2SA1016F T Q609 Q610 33001376 PNP Transistor 2SA1376L T Q611 Q612 33009700 PNP Transistor 2SA970B T Q613 Q614 33001376 PNP Transistor 2SA1376L T Q615 Q616 33003478 NPN Transistor 2SC3478L T Q617 Q618 33006000 NPN Transistor 2SD600KE Q619 Q620 33003478 NPN Transistor 2SC3478L T Q621 Q622 33001376 PNP Transistor 2SA1376L T Q623 Q624 33003902 NPN Transistor ...

Page 4: ... 1 MF R805 R806 27004320 Resistor 47 5Ω 1 MF R807 R808 27004090 Resistor 121KΩ 1 MF R901 R904 27001590 Resistor 5 6KΩ 1W S601 S602 32005400 Thermal Breaker B 1002B VR603 VR604 35001090 Bias Pot SFKPV220R Protection PCB AF705534 Schematic Part Number Description Location C801 12005100 Capacitor 10µF 50V Electrolytic C802 C804 12005610 Capacitor 33µF 50V Electrolytic C701 C702 12005640 Capacitor 0 2...

Page 5: ...istor 100KΩ R712 R713 27004465 Resistor 909KΩ R714 R715 27004200 Resistor 10KΩ R716 27004210 Resistor 100KΩ R717 27004070 Resistor 2 21KΩ R718 27004530 Resistor 1 21KΩ R719 27004600 Resistor 4 75KΩ R720 R721 27004120 Resistor 22 1KΩ R809 27004290 Resistor 18 2KΩ R810 27001590 Resistor 5 6KΩ 1W R811 27004485 Resistor 82 5KΩ R812 27003150 Resistor 820 Ω 1W R813 27004210 Resistor 100KΩ R905 27003095 ...

Page 6: ... Fuse 230V Models Euro 2 5A 250V 24005003 Transformer TT 342 U 37005002 Vacation Switch R19 33FM2 2N 16002249 POWER STANDBY LED VRPY3349S 25001060 AC Inlet 4TR 2786 13005004 Printed Rear Chassis TRP 750A 13001020 Foot 4TR 2823 1 24FX14H 47005002 Alum Shield Board 4TR 3400 13005002 Front Panel 3TOZ 1 TFP 824 11005002 LED Ring for Power LED 4TR 2209B 1 9F 13005003 Top Cover 3TQA 5 15001110 AC Power ...

Page 7: ...r position for 230V operation Main fuse is 2 5A 250V 230V to 115V 1 Unplug the power cord and remove the top cover 2 Locate the standby transformer PT902 on the circuit board in the middle of the unit 3 Near PT902 cut jumpers J3 and J6 see figure 2 below 4 Make jumpers J1 J2 J4 and J5 see figure 2 below 5 Change the rear panel fuse to 5A 250V and place a 5A sticker above the fuse holder so that th...

Page 8: ... 8 ohms 0 05 1 watt to 75 watts into 4 ohms 0 05 IM Distortion CCIF Any Combination from 4kHz to 20kHz 50 watts into 8 ohms 0 01 75 watts into 4 ohms 0 01 Frequency Response 1 Watt into 8 ohms 10Hz to 20kHz 0 0 25dB Power Bandwidth 3dB 5Hz to 130kHz Dynamic Headroom into 4 ohms 1 8 dB Signal to Noise Ratio A Weighted 50 watts into 8 ohms 100dB Gain 29dB Input Sensitivity variable Input Impedance 1...

Page 9: ...a ...

Reviews:

No comments

Related manuals for GFA-5002

YORKVILLE Coliseum CA12 Owner'S Manual preview
Coliseum CA12
Brand: YORKVILLE Pages: 12
YORKVILLE AP1020 Service Schematics preview
AP1020
Brand: YORKVILLE Pages: 8
Cary Audio Design HH-1 Owner'S Manual preview
HH-1
Brand: Cary Audio Design Pages: 20
Qtx QS12A User Manual preview
QS12A
Brand: Qtx Pages: 3
Questtel L-RF-EDFA-14dBm User Manual preview
L-RF-EDFA-14dBm
Brand: Questtel Pages: 16
Vintage Revolution Acoustic Box II Owner'S Manual preview
Acoustic Box II
Brand: Vintage Revolution Pages: 17
Hammond Leslie 3300 P Service Manual preview
Leslie 3300 P
Brand: Hammond Pages: 24
Soundigital 1 200.2 EVO5 User Manual preview
1 200.2 EVO5
Brand: Soundigital Pages: 14
B2 Ref 0.5 Owner'S Manual preview
Ref 0.5
Brand: B2 Pages: 10
E&I 1040L Quick Start Manual preview
1040L
Brand: E&I Pages: 13
K-array Kommander-KA02 User Manual preview
Kommander-KA02
Brand: K-array Pages: 24
TRU Audio S500DSP User Manual preview
S500DSP
Brand: TRU Audio Pages: 4
PRESONUS TUBEPRE User Manual preview
TUBEPRE
Brand: PRESONUS Pages: 18
RVR Solar VJ1000 User Manual preview
VJ1000
Brand: RVR Solar Pages: 86
Eden Solo CXC-300 Owner'S Manual preview
Solo CXC-300
Brand: Eden Pages: 7
Lyrita Phono MC Manual preview
Phono MC
Brand: Lyrita Pages: 4
PJB PB-100 Owner'S Manual preview
PB-100
Brand: PJB Pages: 7
McIntosh MI-3 Owner'S Manual preview
MI-3
Brand: McIntosh Pages: 16

Brands by name

Popular brands

Load more brands