Onkyo M-501 Support and Manuals
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It Is Possible To Use Both A And B Channels At Once On The Onkyo 501
(Posted by soer 10 years ago)
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Popular Onkyo M-501 Manual Pages
Service Manual - Page 1
TABLE OF CONTENTS
Specifications
2
Block diagram
2
Adjustment procedures
3
Chassis-exploded view
4
Packing parts list
6
Precautions
6
IC Block diagram
7
Printed board parts list
8
Printed board view
10
Schematic diagram
11
ONKYO
AUDIO COMPONENTS
- 1- M-501
Ref.No. 3388
ONKYO® SERVICE MANUAL
Stereo Power Amplifier
MODEL M-501
AZiliett4r Ai=
ICSWI.- .1.4 • IV&
...
Service Manual - Page 2
... RL601
0
SPEAKERS-A
0601 +82
RELAY RL602
ono
OSPEAKERS- 8
0602 +82
SYSTEM BUS 0803 0802
REMOTE
RI 0 Re01
-2- Specifications and features are subject to Noise Ratio:
150 watts per channel, min. O"
a RELAY RL902
81
4 56
PROT
HP -2-1
?---e°Q605
0801
SP-8 19
.-r°114 D921-0924
+82
8 MR
SP A 2
7
BUSOUT
a ONST.
M-501
SPECIFICATIONS
Power Output:
Total...
Service Manual - Page 3
...or short the speaker terminals when performing the ...speaker relay turns ON, apply DC+ 1.5 V to the set.
(2) Adjust the input so that the set , after the power...power switch is turned ON. (2) The relay should be canceled by switching the power...501
ADJUSTMENT PROCEDURES
Adjustments and Checking the Protection Circuitry
1. Note) Semi-fixed resistors enclosed in
the OFF condition. tor
->Amplifier...
Service Manual - Page 5
... POERT TRANSFORMER AS-UC-6#18, POWER SUPPLY CABLE or AS-UC-6#18, POWER SUPPLY CABLE or AS-UC-6#18, POWER SUPPLY CABLE or AS-UC-6#18, POWER SUPPLY CABLE 7A(ST-6) FUSE ...KNOB ASS'Y (GUIDE) BOTTOM LEG ASS'Y HANDLE 4TTC+ I0CBC, TAP-T1GHT SCREW 2SC3855A-O or 2SC3855A-Y or 2SC3855A-P, TRANSISTOR 2SA1491A-O or 2SA149IA-Y or 2SAI491A-P, TRANSISTOR NPT-
M-501 REPLACE ONLY WITH PART NUMBER SPECIFIED....
Service Manual - Page 6
... tester between the plug of power supply cable and the terminal GND on the back panel. More than 10M11 at 500V.
-6- Replacing the fuses
For continued protection against risk fire, replace only with same type and same rating fuse.
DESCIRPTION
F901
252052
7A (ST-6), Primary fuse
2. MODEL
PRECAUTIONS
1. PARTS NO. M-501
PACKING PARTS LIST
REF. CIRCUIT NO. Specifications;
Service Manual - Page 7
...Power source C+SV) terminal.
-7- When turned ON; "L" (lighted).
17
POD2
PROIND
Output terminal for controlling SPEAKER-B Relay. "H".
20
POA 1
SPARL
Output terminal for System Code. When turned ON; "H". Active "L" No connectin.
3
POCO
SYS IN
Input terminal for controlling SPEAKER-A Relay. "L" will be used... for detecting power suspension. When turned ON; M-501
IC BLOCK ...
Service Manual - Page 8
...501
PRINTED CIRCUIT BOARD PARTS LIST
MAIN PC BOARD (NAAF-4123-1)-PART LIST
CIRCUIT NO. Q634 Q521, Q522
Q523, Q524
Q631
D505-D5 I 0A-DC24-072
NTM-8PDMN085
NPJ-2PDBL-184
RAD-083
MICROPROCESSOR CIRCUIT PC BOARD (NADG-4125-1)-PART LIST
CIRCUIT NO. R578
P101
PART...1/2W, Metal oxide film
NPJ-2PDBL166
POWER SUPPLY CIRCUIT PC BOARD (NAPS-4124-1)PART LIST
CIRCUIT NO. ICs 22240430
Transistors 2213510...
Service Manual - Page 9
M-501
-9- REPLACE ONLY WITH PART NUMBER SPECIFIED. it P902
PART NO. Capacitor 3500065A
AS, S901
Switch 25035550
F901a
Fuseholder 250113
DESCRIPTION 0.01µF AC400V/125V, Film (IS) NPS-111-L512P S-N5051
AC OUTLET PC BOARD (NAETC-4128-1)-PART LIST
CIRCUIT NO. R583, R584 P502
PART NO. DESCRIPTION
Resistors 441623914
390Q, 1W, Metal oxide film
Headphone ter- AC...
Service Manual - Page 10
...S
err
ASW-4127NT:1SPO0RSAA, SCCOII SAUCI <
2:,.71-
0634
RB1506 8911
DC POWER SUPPLY
HI
S
.= i000OAo
WA-L0IT
PS2
RED
2ZAEC,cPET9L:0IN1U104A0NW1EMS2T8WAC-X1I-TCHED
....3064o10 IC E 15D306
%501
NADG-4125-1
ONXTO CORPORATII NW, L.
-_LS-P-• MD8T305.6B5601
0807
I7I •
Enos
I - A
C
D
E
,CHEMATIC DIAGRAM
IODEL M-501
FAF-412731---
(MAAINMPI
761...
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