Onkyo ED 901 Service Manual

Page 1

Ref. No. 3544

ONKYOQ SERVICE MANUAL

DOLBY SURROUND
AC-3 DECODER
MODEL ED-901

Black and Golden models

BUDN, BUDT 120V AC, 60Hz
BUP, GUPT 230V AC, SOHz
BUGK 220V AC, 50Hz

SAFETY-RELATED COMPONENT WARNING

COMOPNENTS IDENTIFIED BY MARK ARON THE
SCEMATIC DIAGRAM AND IN THE PARTS LIST AER
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK
REPRACE THESE COMPONENTS WITH ONKYO PARTS
WHOSE PART NUMBER APPEAR AS SHOWN IN THIS
MANUAL.

MAKE LEAKAGE-CURRENT OR RESISTANCE MEA-
SUREMENTS TO DETERMINE THAT EXPOSED PARTS
ARE ACCEPT ABLY INSULATED FROM THE SUPPLY
CIRCUIT BEFORE RETURNING THE APPLIANCE TO
THE CUSTMER.

ONKYO
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Page 2

SPECIFICATIONS

Input Sensitivity:
and Impedance

Output Level:
and Impedance

Frequency response:
Distortion:
Signal to noise ratio:

Power consumption:
Power supply rating:

Dimensions (W x H x D):

Weight:

INPUT-l .2 analog audio:
INPU'Ill AC-3RF:
INPUT-2digital (coaxial):
IN PUT- l ,2video:

S-video Y:

S-video C:

D-SUBZS 5i lCI-I OUTPUT
LEFT, RIGHT, CENTER.

50m

759

759
le ivp.pnso
0.23Vp-p/759

LEI-'1' SURROUND, RIGHT SURROUND

(SUB WOOFER) :
Dolby AC-3 SCH out
UC/R/LS/RS:
SUBWOOFER:

25 watts
USA and Canadian models:
AC 120 V, 60 Hz
European model:
AC 230 V, 50 Hz
455 x 90 x 320 mm

0,2V/47DQ

20 Hz - 20 kHz+0/-3dB
0.05%llkHz
0.05%l50Hz

98dB (0utput=2v)(lHF-A)

(17-15/16" X 3-9/I6"><12-5/8")

4.3 kg. (9.5 lbs.)

Specifications and external appearance are subject to change without notice because of product improvements.

SERVICE NOTE

1. Replaceing the fuses

2. Safety-check out
(Only U.S.Ar model)

"CD- This symbol located near the fuse indicates that the fuse
use is fast operating type, For continued protection against fire
hazard, replace with same type fuse. For fuse rating refer to the
making adjacent to the symbol.

E- Ce symble indique que le fusible utlise est a rapide.pour
une protection permanente, nutiliser que des fusibles de meme type
Ce damier est indique la qu 1e present symbol est appose.

MARK REENO. PART NO. DESCRIPTION
D A F90] 252145 lA-TSC. Primary fuse
p A F902 252063 oases/xx, Primary fuse

NOTE: : 120V model only

: Other models

After correcting the original service problem. perform the following
safety check before releasing the set to the customer. Connect the
insulating-resistance tester between the plug of power supply cord
and the screw on the back panel.

Specifications: More than SOMQ at 500Vi