background image

(2) 

Place  the  third  speaker  exactly  mid-way  between  the  left  and  right 

speakers  as  shown  in  Diagram 

3. 

If  the  phasing  of  the  central  speaker  is  incorrect,  the  volume  at  the 

center  will  fall  off  and  you  will  notice  a  deterioration  in  bass  sounds. 
To  correct  this,  inter-change  the  two  lead  lines  of  the  central  speaker. 

2. 

Antenna  and  Ground  Connections  (See  Diagram  1) 

(Antenna  for  ordinary  and  shortwave  reception) 

At  a  place  close  to  the  broadcasting  station:  A  vinyl  antenna  wire  of 
about 

2.5 

meters  in  length  is  provided  with  the  set. 

As  shown  in 

Diagram 

4, 

peel  off  the  covering  at  one  end  and  attach  the  bare  wire  to 

the  terminal  marked  AM. 
At  a  place  far  from  the  broadcasting  station:  Since  the  radio  wave 
grows  weak  if  the  station  is  at  a  distance,  the  vinyl  wire  must  either  be 

extended  or  an  antenna  set  up  outside. 

A  special  antenna  wire  is 

available  but  a  large  vinyl  line  may  be  used.  Consult  your  local  radio 
repair  man  on  how  to  erect  an  outdoor  antenna. 

Inside  a  ferro-concrete  building: 

Even  if  you  are  located  close  to  the 

broadcasting  station,  erect  the  antenna  as  far  as  possible  from  the  wall  of 
the  building. 

W-38 

ANTENNA  TERMINAL 

(DIAGRAM 

4) 

(DIAGRAM 

5) 

IMPORTANT  Do  not  place  the  antenna  line  near  fluorescent  lighting 
which  causes  disturbance  in  the  form  of  a  buzz. 

(Antenna  for  Listening  to  a  FM  Broadcast) 

Connect  the  FM  antenna  to  "G"  and  "FM"  as  shown  in  Diagram 

1. 

Turn  the  horizontal  part  of  the  T -shaped  ant�.nna  towards  the  direction 
in  which  you  can  receive  optimum  reception  and  then  pin  both  ends  to 
either  the  ceiling  or  walls  (See  Diagram 

6., 

Make  sure  the  antenna 

does  not  sag  (Diagram 

6) 

as  it  will  affect  the  tone  quality. 

This  indoor  antenna  is  inadequate  where  the  electric  wave  is  weak.  In 
such  a  case,  set  up  an  outside  antenna  and  connect  with  the  "ANT" 

terminals  marked  "G"  and  "FM".  You  may  use  the  television  antenna 

jointly,  but  if  there  is  a  deterioration  in  the  quality  of  the  image  erect 
separate  antennas. 

See  Diagram 

for  joint  connection  of  television 

antenna. 

How  to  Ground 

You  can  keep  hum  down  to  a  mm1mum  when  reproducing  a  record  by 
grounding  the  set.  As  shown  in  Diagram 

7, 

drive  the  earth  pole  into 

ground  where  there  is  as  much  moisture  as  possible.  Solder  the  end  of 
a  vinyl  line  to  it  and  connect  with  the  amplifier  terminal  marked  "ANT 
G".  If  the  line  is  left  dangling,  it  will  get  in  the  way  so  stretch  if  around 

VINYL 

INSULATION 

TURN 

PULL 

COPPER 

WIRE 

ANTENNA  FEED-IN  WIRE 

AM 

FM 

TELEVISION 

FEEDER 

BACK  SIDE  OF  TELEVISION 

www.hifiengine.com

Содержание W-38

Страница 1: ...INSTALLATION AND OPERATING MANUAL DELUXE STEREOPHONIC AMPLIFIER AM AM FM SW Tuner Combination MODEL W 38 DISTRIBUTOR www hifiengine com ...

Страница 2: ...joy on the spot listening by adjusting the Loudness Control 5 Rumble Filter Irritating low level motor rumbling disturbances can be filtered out with the Rumble Filter 6 RP Cord Tape Recorder Terminal The W 38 is equipped with a special socket of the kind agreed to among the major tape recorder manufacturers a RP cord terminal by which recording and reproduction are possible using only one connect...

Страница 3: ... speaker midway between the two making the connections as shown in Diagram 2 By supplementing the volume in this way you can enjoy a very natural sterephonic reproduction RIGHT SPEAKER IMP SELECT LEFT SPEAKER RIGHT SP PHASE POSITION OF SPEAKER PHASE CENTER DIAGRAM 2 so won VOL CONT LEFT LEFT SPEAKER 3rd SPEAKER DIAGRAM 3 RIGHT SPEAKER If you decide to use three speakers first adjust the phasing of...

Страница 4: ...MINAL DIAGRAM 4 DIAGRAM 5 IMPORTANT Do not place the antenna line near fluorescent lighting which causes disturbance in the form of a buzz Antenna for Listening to a FM Broadcast Connect the FM antenna to G and FM as shown in Diagram 1 Turn the horizontal part of the T shaped ant nna towards the direction in which you can receive optimum reception and then pin both ends to either the ceiling or wa...

Страница 5: ...h a RP cord you can reproduce stereo recording merely by plugging the cord into the socket provided for this purpose Recording with a tape recorder Connect the lead lines from the LINE IMPUT terminals of the tape recorder to the terminals marked TAPE REC In the case of monaural recording either one top or bottom of the terminals may be used Playback of tape recorder Connect the lead line from the ...

Страница 6: ...lockwise to boost 6 TREBLE CONTROL The treble tones of both the left and right speakers can be adjusted simultaneously Turn clockwise to boost 7 BALANCE CONTROL This knob is for the purpose of balancing the left and right speakers Turn counter clockwise to boost the volume of the left speaker and clockwise that of the right speaker 8 FM STABILIZER FM AFC OFF Select FM station with switch at this p...

Страница 7: ...ereo and shortwave broadcasts 14 LEFT CHANNEL MAGIC EYE When you select the station with the TUNING 1 knob see that the magic eye expands to its maximum 15 RIGHT CHANNEL MAGIC EYE When you select the station with the TUNING 2 knob see that the magic eye expands to its maximum 16 SOCKET FOR TAPE RECORDER WITH RP CORD 17 RIGHT SPEAKER TERMINAL DIAGRAM 8 18 IMPEDANCE SWITCH Switch to correspond with ...

Страница 8: ...ectricity is on 2 VOLUME CONTROL 3 LOUDNESS CONTROL 4 RUMBLE FILTER 5 BASS CONTROL 6 TREBLE CONTROL 7 BALANCE CONTROL 9 SPEAKER SWITCH 2 RECORD PLAYBACK WITH STEREO PICKUP 10 PHONO 11 STEREO or REV 3 PLAYBACK OF TAPE RECORDER 10 AUX 11 STEREO OR REV Stereo reproduction LEFT When the left input terminal is used for monaural listening 4 RECORDING WITH A TAPE RECORDER The exact sounds coming out the ...

Страница 9: ...M2 11 STEREO or REV 12 FM Station Selection 13 AM Station Selection 8 Select FM station at OFF position and listen at ON 11 STEREO HEADPHONE USE 21 Plug in headphone jack 9 OFF To eliminate speaker sound ON To bring out the speaker sound DIAGRAM 9 V POINTERS 1 It takes approximately 50 seconds for the sound to emerge from the recorder after switching on the power A direct current flows into the fi...

Страница 10: ...t hum 4 HOWLING When the record player is placed directly on top of the speaker case or close by it the sound from the speaker travels to the player pickup needle and causes howling It then becomes impossible to raise either the volume or boost the bass tones Adjusting the amplifier will not help since it is not responsible for the howling In order to avoid howling keep the player case and speaker...

Страница 11: ...0dB 94Mc AM 46dB 1Mc Mag 3mV X tal 36mV input required for S N 20dB quieting AUX 225mV input required for 9 watt output SOc s f 10 5dB lOKc 8dB 1 8dB 8 5dB 50c s 8dB 20c s 15dB 50c s 15dB 10Kc 4dB Volume control at 30dB 14 watts per channel undistorted output 10 watts or 28 watts in total Harmonic Distortion less than 2 Within 20c s 50Kc 0 5dB output at 500mW RIAA MAG 30mV AUX 4mV volume maximum t...

Страница 12: ...www hifiengine com ...

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