About this Blog

Hello everyone,
My name is TheLion. I am an Audiophile and a 'Walkman' collector. I have started this blog for all those who share the same interest. On this blog, I will share my love with the world of Personal Stereos. This is limited only to Personal Stereos and Minidisc Players and maybe some other unique gadgets. The common rule with all those Personal Stereos is their State-of-the-Art; High-Quality Sound, Excellent build and Unique design - in other words, Personal Hi-Fidelity Analog music players for the soulful man. The main interest (but not limited to) in Walkmans is AIWA Personal Stereos from their early years' product line from 1984 to 1991. The main interest in Minidiscs (but not limited to) is Sharp Minidiscs. I will post pictures of rare Walkmans and Minidiscs with information. Thank God for making all this possible, I hope you all will enjoy my blog.
Note: I started this blog in 2011 to offer a unique perspective for educational purposes in the world of personal Stereo. I will gladly share most of the info regarding the gadgets displayed on this blog. However, Since this blog consumes a lot of time and great efforts to assemble and maintain as current as possible, I do not get paid or gain (thru advertisement) any money to do so. Hence, I do it in my free time. Therefore, If you enjoy this one of a kind comprehensive blog Please consider a nice donation according to your enjoyment of this blog. your kind support will surely make this blog alive & Kick for years to come, it will also entitle you to a free technical support ie; questions, inquiries, and requests. please drop me a line and I'll be happy to assist ThePersonalHiFi@Gmail.com. Thank you TheLion, September 2017.

Flash news

..... . . . Last Updated [October 5th, 2023] AIWA Page updated with new Catalogs....... National JUMP RX-SA15 Radio Cassette Player... . . ., Sharp ΔΣ Auvi MD-DS70 MDLP.....Sanyo JJ-P100 Cassette Player..... . . Sanyo JJ-P101 Quarter Touch Function Cassette Player... .....Coming up Soon.... . .Victor CX-V9.... AIWA HS-RX50.. . .Sharp JC-N5 Cassette Player ... . . .Sharp ΔΣ MD-ST880.. . . . Please Stay Tune For More.... . . . . .

Thursday, December 31, 2015

AIWA HS-J9 / J09 / J600 Introduction



HS-J9 / HS-J09 / HS-J600
Introduction
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

1986 AIWA introduced the world's advanced and compact Personal Stereo Recorder. A State-of-the-Art fully packed with advanced Features plus the luxury of 5 Band Graphic Equalizer, The HS-J9. This Amazing piece of electronics symbolizes AlWA's efforts at creating the finest, most advanced headphone stereo system possible yet affordable for young spirited Hi-Fi aficionados. To target this crowd, 6 amazing colors were made.
The array of sophisticated features includes TV/FM Radio, 5 Band Graphic Equalizer, versatile 3-way reverse recording, detachable 1 point miniature stereo mic Plus AIWA traditional quality in a lightweight and compact design. The HS-J9 - there's simply nothing better. Later on, AIWA introduced the HS-J09 In Europe and HS-J600 in the US due to different country regulations.
AIWA HS-J9 HS-J09 HS-J600

Stay Tune for more this year.........

Friday, November 27, 2015

Panasonic SJ-MR100




~~~ SJ-MR100 ~~~
PORTABLE MD RECORDER



MiniDisc [MD] is a magneto - optical disc-based data storage device initially intended for storage of up to 74 minutes and, later, 80 minutes, of digitized audio. In the form of Hi-MD, it has also developed into a general-purpose storage medium. MiniDisc was announced by Sony in September 1992 and released that November for sale in Japan and in December for the USA and Europe. The music format was originally based exclusively on ATRAC audio data compression, but the option of linear PCM recording was later introduced to attain audio quality comparable to that of a compact disc. MiniDiscs were very popular in Japan but made a limited impact elsewhere. {wikipedia}

Introduction
1999 Panasonic SJ-MR100 Introduced: (June 1999) As the World's Smallest and lightest MD Recorder as of June, 1999.  it cost 46,000 Yen. Unit incorporates .25 mm Rule Newly developed LSI and one Beam Optical pickup. Text Display on Main Body is 2 X 12 characters. Edge mounted Jog dial with Integral Push Button for Labeling and Track selection - Can title while Playing a Track. Special "one Track Record" function. 40 Second Shock memory. Synchro-Recording, sampling rate Converter. time Mark mode (Automatic Track Marks at 3 or 5 minute intervals). Battery charges only when UNIT is stopped. Recording level Control Limited to High / low sensitivity Switch. the SJ-MR100 model has been awarded the Good Design Award in Japan.


Features
  • Jog dial for editing and titling. Jog dial functions turning and clicking. 
  • LCD Display with 2 lines of 12-character on the unit.
  • Remote control with 6 character LCD with back light.
  • Remote display: track name, play time, battery life, play mode & sound preset. 
  • Train function: reduces sounds that may annoy others around you. 
  • Track skip. 
  • S-XBS - Bass Boost Sound Enhancement.
  • Title search function allows another track to be selected by name while unit is playing. 
  • Track titling while playing the track.
  • Synchronized recording.
  • Monaural recording - double the recording time.
  • Inputs: line, optical, mic. 
  • Output: headphone. 
  • English and Japanese Kana song title entry.
 




















Sound Quality
EQ variable is X-SBS -> TRAIN -> NORMAL bright sound style by Panasonic. Adjustable bass moderately satisfied, but not so much Rocking kick (X-SBS level). Anlog sound rock but digital is a bit dull. with different set of Headphone sound was low but excellent quality.


Power source



Recharge time: 3 hours. 
  • 8.5 hours playback, or 4.5 hours of recording, on a rechargeable battery.
  • 10.5 hours playback, or 2.0 hours of recording, on a single AA external battery. 
  • 20 hours playback, or 9.5 hours of recording, on a rechargeable battery and the external battery case. 
  • 1 AA size battery using the supplied Battery case. 
  • 1 NiMH rechargeable battery.
  • Adapter DC 1.8 V

Accessories

  • Stereo Earbud Headphones connected via a backlit remote controller. 
  • 1 NiMH rechargeable battery. 
  • Battery case for use with 1 AA size battery. 
  • Carrying case. 
  • One year Japanese warranty. 
  • Operation manual in both Japanese and English. 
  • Japanese 100 volt AC adapter (AC-D401) 
  • RCA jack to mini plug connection Cable 


Specifications
  • Size:                                                  84 x 77 x 18.9 mm.
  • Weight:                                           136 g without rechargeable battery cell                                                                          161 g with rechargeable battery cell 

■ AUDIO

  • System:                                           MiniDisc digital audio system
  • Recording system:                     Magnetic field modulation direct overwrite
  • Laser:                                              Semiconductor laser (780 nm) 
  • Sampling frequency:                44.1 kHz
  • Sampling rate converter:       32 kHz/44.1 kHz/48 kHz
  • Coding:                                          Adaptive Transform Acoustic Coding (ATRAC)
  • No. of channels:                         2 (left and right, stereo) 1 (monaural)
  • Frequency response:               20 Hz - 20,000 Hz (+0 dB, -8dB)
  • Wow and flutter:                       Below measurable limit
  • Headphone amp:                      5 mw + 5 mw  
  • Phone jack Impedance:   14Ω


Service Manual


 


More Info and editing will follow.............




Coming Up............






Sunday, November 8, 2015

AIWA HS-J7 / HS-J07 / HS-J400


HS-J7 / HS-J07 / HS-J400
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


Amazing versatility, with amazing sound quality
AIWA HS-J7 Pink, HS-J07 Blue HS-J400 Black
1984 AlWA's done it again! The HS-J7 Represents all of AlWA's latest advances in miniaturization and just look at the result. In such a compact unit, there are more features than ever thought possible. The multi-function cassette recorder is combined with An sensitive FM stereo/AM tuner and TV sound. Record from the radio, or make your own live tapes Using the supplied plug-in one-point stereo microphone. Amazing versatility, with amazing sound quality It's the smaller one that does it all.


AIWA has put all of their latest advances in miniaturization into the HS-J7 and look at the result! In such a compact unit, there's stereo recording, a highly sensitive AM/FM stereo tuner, music sensor, 3-way auto-reverse playback, and more, all designed for easy operation.

★ Super Permalloy Head (R/PH).
AIWA HS-J7 HS-J07 HS-J400
HS-J07 Snippet from English Catalog
★ DC Coreless electric governor motor
Dolby B Noise Reduction For PB.
★ 3-Way Stereo Cassette Recording.
Operation Led & Direction
Music Sensor.
3-way auto reverse.
Direction auto-memory.
★ Full Mechanical Auto stop.
★ Metal (CrO2) tape selector.
Anti-rolling mechanism.
AM/FM Stereo Tuner.
TV Sound, listen to TV Receptions.
AC/DC Power source.
High fidelity headphones supplied.



( ( ( ( ((( d(-_-)b ))) ) ) ) )
>3-way Recording Convenience
• Record from the radio, even as you walk along. You'll be surprised at the results, particularly with FM stereo.
• Live music and speech can be recorded by plugging in the supplied one-point stereo microphone.
• Direct recording from other components or sound sources is quick and easy using optional connection cords.
• In any mode, recording level is set automatically, and a special selector switch allows recording on metal position tape.
AIWA HS-J7 CassetteBoy Japanese, HS-J07 UK Version, HS-J400 US Version

>Dolby Noise Reduction Playback 
Dolby B System AIWA HS-J7 HS-J07 HS-J400High-quality component decks can make tapes recorded with Dolby noise reduction for less playback hiss and greater fidelity. The HS-J7 lets you enjoy these benefits when playing Dolby NR encoded tapes because there's a switchable Dolby NR playback circuit. You get top sound quality right from your pocket.

>Built-in AM/FM Stereo Tuner
STEREO CassetteBoy AIWA HS-J7 HS-J07 HS-J400· You can enjoy clear and strong AM or FM stereo reception with the HS-J07's sensitive tuning section.
· FM can be switched to MONO to improve the reception of distant stations.
· 'TV Sound' Reception. Now you can listen to your favorite TV broadcasting on the go.
AIWA CassetteBoy HS-J7, HS-R7 1994 Japanese Catalog Snippet
AIWA CassetteBoy HS-J7 Red Japanese Catalog Snippet
Rare Japanese catalog Nov 1984 
J7 in the Pocket
AIWA CassetteBoy HS-J7 Japanese Catalog Cover Rare
Rare Japanese catalog July 1984 
J7 on the cover
The Japanese ART of AIWA    

AIWA Portable Cassette European Catalog 1984

AIWA Simply Advanced 1984 US Catalog

AIWA HS-J7 HS-J07 HS-J400 Switches & Buttons 1984



A Rare Full Page Japanese Magazine Ad from 1984

~~~~~~~~~~~~~~~








 
AIWA HS-J7 HS-J07 HS-J400 International Service Manual
 Aiwa HS-J7/ J07/ J400 Service manual 
AIWA HS-J7 HS-J07 HS-J400 1984 SM Universal Manual
HS-J7 Exploded View
                                                              

AIWA HS-J7 HS-J07 HS-J400 1984 Belt Assembly
Belt Assembly - 58'' mm Diameter 0.7 



HS-J7 SPECIFICATIONS: 
~~~~~~~~~~~~~~~~~~~~~~~

        < TAPE RECORDER SECTION > 
TYPE: Ultra-compact auto reverse stereo cassette 
recorder with built-in TV/AM/FM stereo tuner

FREQUENCY RESPONSE:
40~12,500Hz (Normal tape)
40~14,000Hz (CrO2 tape)
40~16,000Hz (Metal tape)


OUTPUT POWER:
20 mW X 20 mW (EIAJ/DC)

Wow & flutter:
0.4% (WRMS)

    
  < RADIO SECTION >
Antenna:
FM: Wire antenna
FM: Headphone antenna
AM: Ferrite bar antenna

   
   < HEADPHONE SECTION > 
Type:                                Dynamic type
Impedance:                     29 ohms
Frequency response:     50Hz—20,000Hz
Sensitivity:                      107dB/mW
Maximum input:           100 mW

DIMENSIONS: (WxHxD)
80.5 x 113 x 29.9 mm
3-3 x 4-1/2" x 1-3/16''

MAXIMUM DIMENSIONS:
83.5 x 117 x 30.7 mm
3-1/4" x 4-5/8'' x 1-1/4''

WEIGHT: 
284 g (7.0 oz) without batteries.
320 g (10.1 oz) with batteries

POWER SOURCE:
DC: 3V battery Size AA UM-3/R-06 x 2

AC: through AC adapter (AC 620 optional)

Battery life under continues use: 
• Using manganese batteries (R6. SUM-3. AA)
Approx. 4.5 hours (EIAJ, recording mode)
Approx. 7.5 hours (EIAJ. 1mw output, playback mode)
• Using alkaline batteries (LR-6. AA)
Approx. 9 hours (EIAJ. recording mode)
Approx 15 hours (EIAJ. lab-output. playback mode)


     
 The AIWA HS-J7 Win 4 Star rating

More info and other updates, catalogs, etc, will follow....
AIWA HS-J7 HS-J07 HS-J400 HS-R7
~~~~~~~~~~~~



Coming Up..............
coming Up...Best Players of 1986 AIWA HS-J9 HS-J09 HS-J600 Equalizers