Onkyo A-7 Service Manual

COMPONENT LOCATION
21 22
PARTS LIST
REF.NO. STOCK NO.
] 12829576A
2 12829575A
3 12838573
4 128385741
5 128385742
6 2200592 or
2200593
7 2200582 or
2200583
8 27150048
9 230187
10 3504097
11 25035050
12 5104041
13 25030073
14 25055015
15 25045029
16 25045025
17 250170
18 25045022
19 25060008
20 25060023
21 25050004
22 252020
23 3504012
TP
Universal Model
DESCRIPTION
Main Amp. P.C.B. NAMA-376a
Rectifier/Preamp P.C.B. NAAF-375a
Switch P.C.B. NATM-373
Treble Control P.C.B. NATS-374 Part 1
Bass Control P.C.B. NATS- 374 Part 2
Power Amp. Transistor
28D426 (R) or 2SD426 (O)
Power Amp. Transistor
25B556 {(R) or 2SB556 (Q)
Shielded Plate
Power Transformer NPT-608D
Elect. Capacitor 25000uF 55V
Power Switch NPS-111-L15P
Variable Resistor N35
DGR32C100KT30M, Volume Control
Rotary Switch NRS-124-30Y,
Speaker Selector
Connection Bar
TAPE, PRE OUT, MAIN IN Terminal
TUNER/AUX Input Terminal
NPJ-4PRBLO03
Phono Terminal NTM-2WPBL-E1
Tape Terminal NPJ-6PRBLO3
Ground Terminal
Speaker System Terminal
NTM-4PRMNO1
Fuse Holder with Cover
Speaker Fuse 5A-T
UL Capacitor 0.01uF 125V
TOP VIEW
REF. NO. STOCK NO.
24 27160019
25 250249
26 27140122
27 27140123
28 2714008SA
29 27140157
30 25060025
31 27150055
32 27115014A
33 27110031
34 28140024
35 210015A
36 27120069
51 25050015
52 270025
53 253072
54 250080
-35 252049
—
31 a a 54
51 52 53
2
USA Model
12
DESCRIPTION
Heat sink
Power Transistor Socket M-1614
Heatsink Bracket Left
Heatsink Bracket Right
Transistor Socket A
Transistor Socket B
7P Lug Plate
Shielded Plate
Side Bracket
Front Bracket
Cushion
6.3V 50mA Power Indicator Lamp
Back Panel
AC Outlet NSCT-6P01
Strainrelief SR-3P4
AC Cord AS-UC
AC Fuse Holder S-N1301
AC Fuse 4A ST-6
The Universal type differs from the UDN type (USA model) at the
following points.
9
11
23
36
51-55
61
62
63
230188
25035051
3500052
27120071
250186
25050018
252003
Power Transformer NPT-608ADGQ
Power Switch NPS-]21-L16P
IS Capacitor PME271 YSIOCEE
Back Panel
none
VS Socket S-17205-7
3P Inlet
Fuse 3A-T

Onkyo A-7 Specifications

General

Brand	Onkyo
Model	A-7
Category	Amplifier
Language	English