Technics RSBX 828 Service Manual

Page 1

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ORDER No. AD9204104C8

Service Manual

Dolby NR-Equipped
Stereo Cassette Deck

ori-

RS-TRSSS MECHANISM SERIES (AR350)

SPECIFICATIONS

l CASSETTE DECK SECTION

Deck system Stereo cassette deck

Track system 4~track. 2-channe!

Recording system AC bras
Bias frequency 80 kHz

Erasing system AC erase

Heads

Recording head (Permalloy)x7
Playback head (Permalloy)><1
Erasing head (Double-gap ferrite)xt

Motors
Capstan dnve (Quartz DD motor)><1
Reel table drive (DC motor)> Cassette holder open/close (DC motor)x l
Tape speed 4 8 cm/sec.
Wow andflutter 0,03% (WRMS)
:0.09% (DIN)

Fast forward and rewind times
Approx, 100 seconds with 060 cassette tape
Frequency response (Dolby NR oft)

NORMAL 30 Hz~17kHZ. :3d8
20 HZNIB kHz (DIN)
CrOz 30 HZNISKHZ. :3dB
20 HZ~19 kHleIN)
METAL 30 HZ~19 kHz. :3 dB

20 Hz~20 kHz (DIN)

Technics

Cassette Deck

RS-BX828

Colour
r-fi-w-a
(K) Black Type I

Area
I Suffix for I
:3 Model No. 53 CO'DU' {
._______#_______;
I (EB) Great Britain, I
I (EG) Germany and ltaly./ I 1
Europe. I
f Asta, Latin America, (K) I
E (GC) Middle Near East 1
r and Africa. :
I IGN) I Oceania.

a! Doloy noise reduction and HX Pro headroom extension
manufactured under Iicense from Dolby Laboratories
Licensing Corporation. HX Pro originated by Bang and
Olufsen. DOLBY, the double-D symbol and HX PRO
are trademarks of Dolby Laboratories Licensing
Corporation.

S/N (Signal levelzmax recording level, 002 type tape)

NR off 57 dB (A weighted)
Dolby B NH on 66 GE'- (CCIR)
DolbyCNFi on 74 dB (CClR)
input sensitivity and impedance
REC (IN) 60 mV/47 k0
Output voltage and impedance
PLAY (OUT) 400 mV/BOOO
HEADPHONES 125 mV/(BQ)
(Load impedance 80~6000)
I GENERAL
Power consumption 22 W

Power supply

For (GC) area AC SOHZ/BOHz, lTOV/l27V/220V/24OV

For others AC 50 HZJGO Hz. 2301-240V
Dimensions (WXHXD) 430x135x300 mm
Weight 5 3 kg
Note:

Specifications are sublect to change Without notlce
Weight and dlmenSIOns are approxlmate.

Page 2

ORDER NO.AD921241358

ervice Manual

DEI-

* Dolby noise reduction and HX Pro headroom extension
manufactured under license from Dolby Laboratories
Licensing Corporation. HX Pro originated by Bang and
Olufsen. DOLBY, the double-D symbol and HX PRO"
are trademarks of Dolby Laboratories Licensing
Corporation.

Dolby NR-Equipped
Stereo Cassette Deck

Cassette Deck

RS-BX828

Colour
(K) Black Type
Area
Suffix for
Model No. Area Colour
(EB) Great Britain.
(56) Germany and Italy./
Europe.
Asia. Latin America, (K)
(60) Middle Near East
and Africa.
(GN) Oceania.

Please file and use this supplement manual together with the service manual for Model No. RS-BX828,

[ Order No. AD920410408.

We inform you that we have changed the following zener diode in order to improve the takeup

torque performance.

CHANGES
.CHANGE IN REPLACEMENT PARTS LIST

Change of Part No.
Ref. No. Part Name & Description Remarks
ORIGINAL 4» NEW
DIODE (S)
0504 MTZJSRGCTA MTZJSRlBTA Zener Diode Change
I CHANGE OF SUFFIX NO.
A" -> "B" EX: FPZJ [A301126
Suffix E]
I SCH EMATIC DIAGRAM (on Page 30
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Printed in Japan
K921210700YU
20917T003