Adcom GFA-5002 Service Manual

4
D905 16004003 Diode 1N4003
F902 19009100 Fuse 1A 250V
Schematic Part Number Description
Location
IC701,IC702 21004558 Dual Op-Amp NJM4558DD
IC703 21005550 Timer IC NJM555D
IC801 21001237 Protect IC UPC1237H
IC901 21007912 Regulator IC NJM7912
IC902 21007800 Regulator IC NJM7812
PT902 24005002 Standby Transformer TT-345-U
Q701,Q702 33005360 NPN Transistor 2SC536G-T
Q703 33006000 NPN Transistor 2SD600KE
Q704 33003399 Digital NPN Transistor 2SC3399-T
R701,R702 27004200 Resistor
10KΩ
R703,R704 27004210 Resistor
100KΩ
R705,R706 27004630 Resistor
221KΩ
R707,R708 27004400 Resistor
1.82KΩ
R709-R711 27004210 Resistor
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 Resistor
33Ω (1W)
RY801 28001140 Relay VB-24SMCU-E
RY901 28001150 Relay G4W-1112P-VD
Input PCB
AF705544
Schematic Part Number Description
Location
C601, C602 12001390 Capacitor 125V 330pF
JP601, JP602 22001020 RCA Jack 4TR-2709-3
R601,R602 27004050 Resistor
1KΩ
SW601 37001350 Bridging Switch SX4TR-2886
VR601,VR602 35005002 Input Level Pot 4TR-3379
DC Trigger
Board
AF705554
Schematic Part Number Description
Location

Adcom GFA-5002 Specifications

General

Brand	Adcom
Model	GFA-5002
Category	Amplifier
Language	English