ONKYO TA-RW255 Service Manual

Cover page of ONKYO TA-RW255 Service Manual

Service Manual for ONKYO TA-RW255, downloadable as a PDF file.

We also have owner's manual to this model.

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TA-RW255
SERVICE MANUAL
SERVICE MANUAL
STEREO CASSETTE TAPE DECK
Black and Silver models
MODEL
TA-RW255
120V AC, 60Hz
230-240V AC, 50Hz
BMDD
BMPA, BMGT
BMPP, SMPP
Ref. No. 3872
062005
ONKYO
EJECT
EJECT
DOLBY NR
REVERCE MODE
DUBBING
COUNTER
HIGH
NORMAL
A/B
RESET
REC LEVEL
MIN
MAX
AUTO SPACE
DUBB.STOP
POWER
STANDBY
L
R
dB
-20
-
-10
-6
-3
+3
0+6
PAUSE
DECK-B
PLAY
OFF
B
C
DOLBY NR
HI-SPEED
DUBBING
DECK-A
PLAY
A
B
REC
Other models
North American model
STANDBY/ON
MAIN POWER
ON
OFF
STANDBY
STANDBY
STANDBY/ON
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.
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TA-RW255
SERVICE MANUAL
SERVICE MANUAL
STEREO CASSETTE TAPE DECK
Black and Silver models
MODEL
TA-RW255
120V AC, 60Hz
230-240V AC, 50Hz
BMDD
BMPA, BMGT
BMPP, SMPP
Ref. No. 3872
062005
ONKYO
EJECT
EJECT
DOLBY NR
REVERCE MODE
DUBBING
COUNTER
HIGH
NORMAL
A/B
RESET
REC LEVEL
MIN
MAX
AUTO SPACE
DUBB.STOP
POWER
STANDBY
L
R
dB
-20
-
-10
-6
-3
+3
0+6
PAUSE
DECK-B
PLAY
OFF
B
C
DOLBY NR
HI-SPEED
DUBBING
DECK-A
PLAY
A
B
REC
Other models
North American model
STANDBY/ON
MAIN POWER
ON
OFF
STANDBY
STANDBY
STANDBY/ON
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.
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Format:
Auto reverse double deck
Track format:
4-tracks, 2-channels
Recording system:
AC bias
Erasing system:
AC erase
Tape speed:
4.76 cm/sec. (1-7/8 i.p.s)
Wow and Futter:
0.13 % (WRMS)
Frequency response:
Metal position tape 30 Hz to 15 kHz ±3 dB
High position tape
30 Hz to 14 kHz ±3 dB
Normal position tape 30 Hz to 13 kHz ±3 dB
Signal to noise ratio: 56 dB (metal position tape/ Type IV,
Dolby NR off)
55 dB (high position/ Type II, Dolby NR
off)
50 dB (normal position/ Type I, Dolby
NR off)
Noise reduction of 10 dB above 5 kHz
and 5 dB at 1 kHz possible with Dolby B.
Noise reduction of 20 dB at 5 kHz
possible with Dolby C.
Input Jacks:
LINE IN:
2
Input sensitivity:
80 mV
Input impedance:
50 k ohm
Output Jacks:
LINE OUT:
2
Standard output level: 500 mV
Output load impedance:over 50 k ohm
Motors:
DC servo motor: 1+1
Heads:
PB Head:
Special Hard Permalloy x 1
Rec/PB Head:
Special Hard Permalloy x 1
Erase head:
Ferrite x 1
Power supply rating: North American: AC 120 V, 60 Hz
European: AC 230 - 240 V, 50 Hz
Power consumption: 17 W
Standby power consumption:
North American: 7.0 W
European: 0.6 W
Dimensions: (W x H x D):
435 mm x 121 mm x 303 mm
(17-1/8" x 4-3/4" x 11-15/16")
Weight:
4.9 kg (10.8 lbs.)
Operation condition temperature/humidity:
5 C - 35 C/ 5% - 85% (no condensation)
Specifications and external appearance are subject to change
without notice because of product improvements.
TA-RW255
SPECIFICATIONS
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TA-RW255
TA-RW255
EXPLODED VIEW
Except
<MDD>
A003
x 4 pcs.
A029
x 4 pcs.
A202
x 7 pcs.
A014
x 2 pcs.
A004
x 2 pcs.
A302
x 6 pcs.
A014
x 2 pcs.
A008
x 2 pcs.
A011
x 2 pcs.
A019
x 2 pcs.
A206
x 2 pcs.
A029
x 2 pcs.
A029
x 5 pcs.
A306
x 3 pcs.
A311
x 4 pcs.
A312
x 4 pcs.
A313
x 8 pcs.
A029
x 2 pcs.
A011
x 2 pcs.
Z008
x 2 pcs.
Z009
x 4 pcs.
Z007
x 2 pcs.
A029
x 2 pcs.
A028
x 4 pcs.
A001
A010
A013
A315
A316
A317
A317
A017
E851
A020
T901
A015
A016
A021
A013
A305
A307
A308
A301
A007
A007
U01
U02
U04
U03
A010
A006
P901A
P101
P801
P802
P102
P701
A026
A201
Z001
Z002
Z004
Z006
Z003
Z005
A203
A204
A205
A208
U05
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TA-RW255
TA-RW255
EXPLODED VIEW
CASSETTE MECHANISM
Z001 : CMAL2Z226B (PLAY Deck)
Z002 : CMAL2Z227B (REC/PLAY Deck)
B
B
A
A
A
A
A
A
A
A
A
B
A : MOLYKOTE EM-60L : CORNING
: SCREW LOCK
: BOND
A
05a
05b
04
32
31
02
42
29
30
06
25
03b
03a
F567-750
F513-930
F513-931
PACK
CMAL2Z226B
CMAL2Z227B
Lever for prevent to eject
(Both mecha.)
PACK
Cr
Cr
METAL
F REC
R REC
F567-739
Lever for prevent to lever.
(only Left side mecha.)
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TA-RW255
CASSETTE MECHA. PARTS LIST
No.
03a
03b
04
05a
05b
06
25
29
30
31
32
42
PART No.
F513-931
F513-930
F525-382
F567-739
F567-750
F522-063
FF19N
FR26D-11
FR26B-21
F514-133
F514-134
FF19S
PART NAME
PLATE HEADD BLOCK
PLATE HEADD BLOCK
MOTOR MAIN BLOCK
PCB CONTROL BLOCK
PCB CONTROL BLOCK
CLUTCH ASSY BLOCK
MAIN BELT
ASSY F/W
ASSY F/W
ROLLER PINCH BLOCK R
ROLLER PINCH BLOCK L
F/R BELT
NOTE
226B
227B
226B
227B
F/W Material: ES-5
F/W Material: ES-5 x 2

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