Technics RS-BX 828

Data

General

• Manufacturer: Technics
• Model: RS-BX 828
• Type: Cassette Tape Deck
• Years of manufacture: 1992 - 1993
• Made in: Osaka, Japan
• Color: Black
• Remote control: Yes (included)
• Power consumption: 22 W

Dimensions: 430 x 135 x 300 mm (WxHxD)

• Weight: 5.3 kg
• Original price approx.: 849 DM

Connections

• Inputs:
  • CD Direct In: No
  • Line In: 2xRCA, 60 mV/47 kOhm.
• Outputs:
  • Headphones: 6.3mm jack, Gold plated, 125 mV/8 ohms (8 ohms ~ 600 ohms).
  • Line Out: 2xCinch, 400 mV/800 Ohm

Technical Data

• Sound heads:3 - 1 permalloy recording head, 1 permalloy playback head, 1 ferrite double gap erasing head.
• Motors: 1 quartz direct-drive motor for the sound shaft, 2 DC motors, 1 DC motor for opening and closing the cassette compartment.
• Synchronisation fluctuations: 0.03% (WRMS) ; +/- 0.09% (DIN)
• Tape types: FE, CrO2, pure iron tape
• Frequency response:
  • FE band: 30 Hz ~ 17 kHz, +/- 3dB.
  • CrO2: 30 Hz ~ 18 kHz, +/- 3dB
  • Metal: 30 Hz ~ 19 kHz, +/- 3dB
• Distortion factor: n.a.
• Signal-to-noise ratio: (signal level = full scale; CrO2 band)
  • with Dolby C noise reduction: 74 dB (CCIR)
  • with Dolby B noise reduction: 66 dB (CCIR)
  • without noise reduction: 57 dB (A-weighted)
• Auto Reverse: no
• Title search: yes
• Dolby HX PRO: Dolby B, Dolby C
• MPX Filter: yes
• Fader: No
• Pitch control: No
• CD Direct Recording: No

Special Features

• Quartz-controlled digital servo direct drive motor
• Three-head assembly with audio head coils made of high-purity PC-OCC copper
• Closed loop tape guide and double capstan drive
• Linear Magne Field Class AA system
• Two separate Dolby circuits
• Dolby HX Pro
• APRS ("Advanced Precise Rec-Level System")
• TPS - Title Search
• TNRC ( Technics Non-Resonant Compound) chassis baseplate
• Logic control with two motors
• Motor-driven cassette compartment
• Linear FL tape counter/play time display
• FL peak level meter for two ranges
• Rec. Calibration Generator (400Hz/10kHz)
• Bias and recording level calibration
• Remote control via supplied IR remote control
• Manual bias adjustment and additional recording level calibration for left and right via integrated test tone generator (10 kHz bias / 400 Hz level calibration)
• Memory Stop, repeat function<->AB up to 16x
• Real time counter, switchable to normal tape counter

Remarks

Occurring errors:

• No sound, no recording:C619, C620, C621, C622 & C624 -> replace 1000uF-10V.
• Permanent magnet on capstan can come loose, especially after transport. Leads to fast grinding noises! All DD Drive AR350
• Trembling in the sound: Lubricant of the winding plate axles flocculates! Re-lubricate with graphite grease
  
• Sound leaks: Pressure roller spring gives way. Item no. 120-1/ ET. No. RUW140ZC -> no longer available
• Due to age, the plastic elements in the running gear become increasingly brittle and break, the pinions of the rewinding motor burst open and slip off => irreparable

For your attention Due to the age, the plastic elements in the drive become increasingly brittle and break, the pinions of the rewinding motor burst open and slip off => irreparable

Other models in the same series:

• RS-B626
• RS-B727
• RS-B828

Pictures

Links

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