Technics RS-BX606

ORDER NO. AD9106169C5
ervice
Manual
Dolby NR-Equipped
Stereo Cassette Deck
DC (botsy 6c Na ax PRO]
* HX Pro headroom extension originated by Bang Olufsen
and manufactured under license from Dolby
Laboratories Licensing Corporation.
“DOLBY”, the double-D symbol, and “HX PRO” are
trademarks of Dolby Laboratories Licensing
Corporation.
RS-TR555 MECHANISM SERIES (AR350)
SPECIFICATIONS
CASSETTE DECK SECTION
Deck system
Track system
Stereo cassette deck
4-track, 2-channel
Recording system AC bias
Bias frequency 80 kHz
Erasing system AC erase
Heads Recording head (Permalloy) x
Playback head (Permalloy) x 1
Erasing head (Double-gap ferrite) x 1
Motors Capstan drive (Quartz DD motor) x 1
Reel table drive (DC motor) x 1
Tape speed 4.8 cm/sec. (1-7/8 ips)
0.05% (WRMS)
+£0.14% (DIN)
Wow and flutter
For (EB, EG) areas only
Fast forward and rewind time
Approx. 100 seconds with C-60 cassette tape
Frequency response (Dolby NR off)
NORMAL 30 Hz~17 kHz, +3 dB
For (PP) area 20 Hz~19 kHz
For others 20 Hz~18 kHz (DIN)
cro, 30 Hz~18 kHz, +3 dB
For (PP) area 20 Hz~20 kHz
For others 20 Hz~19 kHz (DIN)
METAL 30 Hz~19 kHz, +3 dB
For (PP) area 20 Hz~21 kHz
For others 20 Hz~20 kHz (DIN)
Technics
Cassette Deck
RS-BX606
Color
(K)...Black Type
Area
Country
(PP) U.S.A./Canada
K
F.R. Germany and (ks)
(EG) Italy./Continental
Europe.
SIN (signal level=max recording leve, CrO, type tape)
NR off 57 dB (A weighted)
Dolby B NR on 66 dB (CCIR)
Dolby C NR 74 dB (CCIR)
Input sensitivity and impedance
LINE IN 600 mV/47 kQ
Output voltage and impedance
LINE OUT 400 mvV/800 Q
HEADPHONES 125 mV/(8 Q)
(Load impedance 8 Q~600 Q
@ GENERAL
Power consumption 20 W
Power supply
For (PP) area AC 60 Hz, 120 V
For others AC 50 Hz/60 Hz, 230 V—240 V
Dimensions (W x H x D) 430 x 125 x 300 mm
(16-15/16" x 4-15/16" x 11-13/16")
Weight 4.3 kg (9.46 Ib.)
Note:
Specifications are subject to change without notice.
Weight and dimensions are approximate.

Technics RS-BX606 Specifications

General

Track System	4-track, 2-channel stereo
Tape Speed	4.8 cm/s
Weight	4.5 kg
Motor	DC Servo Motor
Tape Type	Type I, CrO2, Metal
Noise Reduction	Dolby B, Dolby C
Frequency Response	20Hz - 20kHz (Metal Tape)
Input	Line In
Output	Line Out
Dimensions	430 x 125 x 300mm
Signal to Noise Ratio	72dB (Dolby C)

Summary

Specifications

Cassette Deck Section Specifications

Detailed specifications for the cassette deck functionality.

General Specifications

General technical specifications and dimensions for the cassette deck.

Safety Precautions

Insulation Resistance Test

Procedure to test insulation resistance for electrical safety.

Accessories

Connections

Location of Controls

Control Layout Overview

Identification and function of front panel controls.

Operation Section

Display Section

Disassembly Instructions

Cabinet and Main PCB Removal

Steps for removing the outer cabinet and main printed circuit board.

Front Panel and Drive Circuit Board Removal

Procedures for removing front panel and drive circuit boards.

Mechanism Unit and Related Components Removal

Steps for removing mechanism unit, damper, holder, and switch PCB.

Component Removal Procedures

Steps for removing various small components like levers, motors, and ornaments.

Measurement and Adjustment Methods

Test Tape Specifications and Setup

Details on measurement conditions, instruments, and test tapes used.

Head Azimuth, Gain, and Frequency Response Adjustments

Procedures for adjusting head azimuth, playback gain, and frequency response.

HX Pro and Overall Response Adjustments

Adjustments for HX Pro and overall frequency response.

Overall Gain Adjustment

Procedure to adjust the overall signal gain.

Terminal Function of ICs

IC501 Microcomputer Terminal Functions

Detailed pin functions for the microcomputer IC.

Printed Circuit Boards

Main, FL Drive, and Power Supply PCBs

Layouts of key printed circuit boards.

Various Component PCB Layouts

Layouts for operation, record level, power switch, FG, motor, mechanism, and capstan PCBs.

Schematic Diagram

Main, Power Supply, and Power Switch Circuits

Schematic for core power and control circuits.

Drive and Control Circuit Schematics

Schematics for FL drive, operation, mechanism, motor, and capstan circuits.

FG Circuit Schematic

Schematic diagram for the FG circuit.

Troubleshooting Direct Drive Motor

Terminal Guide ICs, Transistors, Diodes

Block Diagram

Internal FL Connection

Diagram showing internal connections for the FL display.

Packing Material

Wiring Connection Diagram

Replacement Parts List

Resistors & Capacitors

Exploded View (Cabinet Parts)

Mechanical Parts Exploded View

Visual breakdown of mechanical components.