Service Manuals, User Guides, Schematic Diagrams or docs for : ONKYO Audio A-933 hfe_onkyo_a-933_service_en
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download hfe_onkyo_a-933_service_en documenatation <<
Text preview - extract from the document
A-933
Ref. No. 3876
032005
SERVICE MANUAL
INTEGRATED AMPLIFIER
MODEL A-933
ON STANDBY
1 2 3 4
5 6 7 8
9 10/0 >10 GROUP
FM AM CLEAR
CD
MD
TAPE /CDR
MD VOLUME
LINE TAPE /CDR
CD PRESET MUTING PRESET
STANDBY/ON
TUNER VOLUME SLEEP
ON(G) TIMER
STANDBY(R)
PHONO
ENTER
INPUT
MEMORY REPEAT DISPLAY
RANDOM P MODE SCROLL
CLOCK
CALL
RC-613S
RC-613S
Silver and Black models
S UPP, S MPP 230-240V AC, 50Hz
B UPP, B MPP 230-240V AC, 50Hz
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
A-933
SPECIFICATIONS
Power output : 80 W + 80 W (8 , 1 kHz, DIN)
Dynamic power : 270 W + 270 W (3 , Front)
220 W + 220 W (4 , Front)
110 W + 110 W (8 , Front)
THD (total harmonic distortion) : 0.08% (1 kHz, 1 W)
Damping factor : 25 (Front, 1 kHz, 8 )
Input sensitivity and impedance : 200 mV, 50 k (LINE)
2.5 mV, 50 k (PHONO MM)
Output level and impedance : 200 mV, 2.2 k (REC OUT)
Phono overload : 130 mV (MM, 1 kHz, 0.5%)
Frequency response : 10 Hz - 60 kHz, +1 dB -3 dB (CD)
Tone control : +8 dB, -8 dB, 100 Hz (BASS)
+8 dB, -8 dB, 20 kHz (TREBLE)
+10 dB, 80 Hz (SUPER BASS)
SN ratio : 100 dB (LINE, IHF-A)
70 dB (PHONO, IHF-A)
Speaker impedance : 4 - 16
Power supply : AC 230 - 240 V, 50 Hz
Power consumption : 100 W
Stand-by power consumption : 0.9 W
Dimensions (W x H x D) : 275 x 103 x 328 mm
Weight : 7.5 kg
Analog inputs : PHONO, TUNER, CD, LINE, MD, TAPE/CDR, MAIN IN
Analog outputs : MD, TAPE/CDR
Subwoofer pre outputs : 1
Speaker outputs : 2 (A, B)
Phones : 1
Specifications and features are subject to change without notice.
A-933
SERVICE PROCEDURE
1. Replacing the fuses
This symbol located near the fuse indicates that the
fuse used is show operating type, For continued protection against
fire hazard, replace with same type fuse , For fuse rating, refer to
the marking adjest to the symbol.
Ce symbole indique que le fusible utilise est e lent.
Pour une protection permanente, n'utiliser que des fusibles de meme
type. Ce demier est indique la qu le present symbol est apposre.
REF.NO. NAME DESCRIPTION Q'TY PART NO. REMARKS
F901 FUSE 3.15A-SE-EAWK 1 252076GR
F902 FUSE 2A-SE-EAK 1 252074GR
2. Initialize the unit.
(1) Press and hold down the MAIN IN button, then press the STANDBY/ON button.
All indicators light up ---> Standby
(2) Disconnect the AC power cord from a wall outlet.
3. Setting position before shipment.
(1) POWER switch : ON
(2) BASS : CENTER
(3) TREBLE : CENTER
(4) SUPER BASS : MIN.
(5) VOLUME : MIN.
4. EuP Lot6 correspondence, Add "D" to the end of serial numbers.
Change T903, P TRANS, NPT-1938P, 2301539 2301539A.
old part (2301539) old set
new part(2301539A) new set(EuP Lot6 correspondence, Add "D" to the end of serial numbers.)
A-933
A084
EXPLODED VIEW U02 A025
A083
x 2 pcs.
P312 A082 x 2 pcs.
A002 x 9 pcs.
P901 A096
P901A A755 A002
x 8 pcs. x 2 pcs. A002 E402
x 4 pcs.
A102 A045 T901
x 2 pcs.
P201A
x 2 pcs. A081 A037
T902 A037 L=30mm x 2
A039 P701
L=20mm A003
A040 x 2 pcs.
A038 A037 U01
A032 A002
x 17 pcs. L=25mm x 8 pcs. x 3 pcs. U04
x2 A027
A002 A002
x 7 pcs.
A002
x 2 pcs.
A037
F901C L=30mm A029 U08
A037 A002
x 2 pcs.
L=30mm
A101 U09
U06 U13 A054 A057
F901 U14 A068 A063
E401
A002 x 6 pcs. U11
A044 A047 A055
A043 A002 A033 A002
x 2 pcs. x 2 pcs. x 2 pcs. A053
A065
A007
A005 A073 A055 A066
x 2 pcs. A001 x 3 pcs.
A002 A057
x 2 pcs. A056
U10 A064
A068 A071
A051
A021 A072
A062
A037 A024
L=10mm x 8 x 5 pcs. A075
x 2 pcs.
A022
x 4 pcs. A069 A061
x 2 pcs.
A-933
A037
A024 L=15mm A024
x 6 pcs. A067
x3 x 4 pcs. x 4 pcs.
A-933
A B C D E F G H
SCHEMATIC DIAGRAMS-1 To NADG-8505
(SD-2 : H4)
PRE-AMPLIFIER SECTION / POWER SUPPLY SECTION
P702A
NAAF-8499 & NAAF-8500 NAETC-8501 & NAETC-8502
L201
NCH-1358 U02 TONE/DIRECT
U04
VOLUME PC BOARD
C281
P206
PRE-AMPLIFIER PC BOARD
102
C203
1 22/25 NJM4580M-D
JL302B
C301
NJM4580M-D C357 SUPER
5 NJM4580M-D 5
C213 R301 47/25 47/25 BASS BASS TREBLE
C207
152J
P207 7 3 7
C375 223
Q201 C305 C353 Q351
6 3.3K 1 R311 HPFL 47/25 6
10/50 Q301
2 Q305 R353 C363
47/25 47 GND 104
RI
R377
2SD655-F
4.7K
Q303 R369
10K 33/35
C371
R213
100K
C387
822J
P208 C209 C211 HPFR C367
C205 R207
220K
220K
220K
220K
R205
R303
R305
R313
2SD655-F R315 R307 10K R365 47K 20KA NJM4580M-D
820
682J 182J C365 473J
R317 GND Q353 474J 822
R309
5.6K
1K 2SK365-GR 3
R359
220K
1K
R361
220/6.3
HPIN C351 R351 R383 R381
C303 NC 1 R370 R391 R371
P209 VOLUME C359 Q352 100KC
R209 R211 R373 10K 50KC
C304 NC 47/25 470 D351 1M 2 470
470K 39K
R310
R357
5.6K
33/50
C355
C282 C361 680
C373
393J
R379
R375
R314
100K
R318
220K
1K
393J C369
220/6.3
R210 R212 470
C206
R316
220K
220K
R304
R306
R355
224J
6.8K
102 R201 470K 39K R353
R364 R363
Q304 R308 10K
12K 12K
C283 1K 1K
2SD655-F 1K ◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo