Onkyo TARW 66 Service Manual
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Extracted text from Onkyo TARW 66 Service Manual (Ocr-read)
Page 1
TA
OM 3235
UDN, UDC, UD 120V AC, 601-12
UG 220V AC, SOHZ
UW 120 or 220V AC, 50/60Hz
UQA, UQB 240V AC, SOHZ
SAFETY-RELATED COMPONENT WARNINGII SPECIFICATIONS
COMPONENTS IDENTIFIED BY MARK A 0N Track System: 4-tracks, 2Achannels
(30 - 14,000Hz t 3dB)
Std output level: SOOmV (OdB)
MAKE LEAKAGECURRENT OR RESISTANCE
STEREO CASSE I IE
TAPE DECK
MODEL TA-RW66
Black model
THE SCHEMATIC DIAGRAM AND IN THE PARTS Recording System: AC bias
LIST ARE CRITICAL FOR RISK OF FIRE AND Erasing System: AC erase
ELECTRIC SHOCK. REPLACE THESE COM- Tape Speed: 4.8 cm/sec (1.7/8 i~P~SA)
PONENTS WITH ONKYO PARTS WHOSE PARTS Wow and Flutter: 0,07% (WRMS)
NUMBERS APPEAR AS SHOWN IN THIS MANUAL Frequency Response: 20 - 15 ,OOOHZ (Normal)
20 ~ 16,000Hz (High)
(30 7 15.000Hz : 3dB)
20 7 17,000I'Iz (Metal)
(30 7 16,000Hz a: 3dB)
S/N Ratio: Dolby NR out: 56dB(meta1
position tape)
A noise reduction of 10dB above
SkHz and SdB at IkHz is possible
with Dolby B NR. A noise reduc-
tion of 20dB at SkHz is possible
with Dolby C NR.
Input Jacks: Line IN: 2
Inpm sensitivity: 60mV
Input impedance: SOkohm
Outputs: Line OUT: 2
ONKYO Optimum load impedance: over
3 50k-ohm
Headphone Jack: 1
Optimum load impedance: 8 ohm
to 200 ohm
MEASUREMENTS TO DETERMINE THAT
EXPOSED PARTS ARE ACCEPTABLY IN-
SULATED FROM THE SUPPLY CIRCUIT BEFORE
RETURNING THE APPLIANCE TO THE
CUSTOMER.
Page 2
TA-RW66
Motors:
Heads:
Power Supply:
Power Consumption:
Dimensions:
Weight :
DC servo motor: 2
REC/PB: Special Hard Permalloy
x 2
Erase head: Ferrite x l
AC120V/60Hz, 120/220V
50/60Hz,
18 watts
435(W)x122(H)x 259(D)mm
(17-1/8 x 4-7/8 x 10-3/16)
4.4 kg. (97 lbs)
Because of product improvements, specifications and ex-
ternal appearance are subject to change without notice.
SERVICE PROCEDURES
1. Replacement of power supply cord
There are two power supply cord outlets on the strainrelief.
Insert them in prescribed direction to ensure safety. AS-UC-
3 (UD<120V> model) should be inserted lengthwise and
other types of cords should be inserted horizontally
Power Supply Cord
Iengrh Wise
direction
Power Supply Cord
Horizontal
direction
2. Instruction resistance measurement
Connect the insulating-resistance tester between the plug of
power supply cord and chassis.
Specifications; 500V more than 10MB
IC BLOCK DIAGRAM
BA6251 (REC AMP. E0. SW)
INI
INZ
ms
nu
m5
m6
m1
ourv
cm 2 IN ovw-i >740 our
ours I
cum our
ours
ours
GND 0- GM)
ourv
N.C.
IR-2E27
05 E E Vcc
0
0:. [2 1:5] AMP
03 E :4] 'IN
02 E E AMP
01 E 1:2] +IN
DI E E 05
D2 E E DA
GND E 9 o:
NJM-2068D-D
V
t , V
k E
G
_l 5.
6 m E:-
. ; flOUTPUI
a:
w T _ 3E T
Amvo 5£
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A-lN Z 7 5-01."
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