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Service Manual
Boat
Thorn Studio 500 and 600
Models
501 502 503
004 600
602 603 604
Power Output
(Measured with
1
both channels driven).
and
502:
15
or
501
channel.
503, 504, 600, 601, 602, 603,
per channel.
watts.
604:
20
Frequency Response
kHz+
30 Hz— 20
input.
Power Bandwidth
kHz
unclipped
30Hz
20
—
points
Distortion
than
Less
0.1%
up
maximum power output.
Sensitivity
kHz for 15w
(Measured
at
1
Magnetic pickup
input
Tape
Auxiliary input
Power Consumption
nominal
from
watts
75
AC 50
(215-245V)
Semi-conductor Complement
Transistors
26
Diodes
10
The
right
is reserved to vary
THORN OU
RADIO
aRES
601
TECHNICAL SPECIFICATIONS
kHz
sinewave,
watts per
20
dB
using tape
1
at
dB
2
—
below
dB
to
1
output).
4mV
200 mV
mV
85
230V
Hz.
Supply.
alternative materials
specifications
or use
MEMBER OF THE THORN GROUP OF
A
series
Tone Controls
(Reference
Bass =
12 dB
Treble
+
12 dB
Contour
below full
30 dB
(at
at 40 Hz
+
dB
9
at
+
dB
10
7
Filter
Low
20
dB
at
—
Filter
High
dB at
10
—
Crosstalk
than
Better
input.
Tape Output
with
100 mV
Source impedance
kHz.
1
Auxiliary Output
with
100 mV
Source impedance
kHz.
1
deemed necessary
as may be
IN
18 NATIONS
COMPANIES
dB
at
kHz)
0
1
at 40 Hz
kHz
at
10
setting).
volume
kHz
Hz
20
kHz
10
kHz
40
at
for
dB
any
1
into
at
4
gram
mV
100 k
into
at
4
gram
mV
100 k
desirable
at any time.
or
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Related Manuals for Thorn 601
Summary of Contents for Thorn 601
- Page 1 Supply. AC 50 (215-245V) Semi-conductor Complement Transistors Diodes desirable alternative materials deemed necessary at any time. as may be right is reserved to vary specifications or use THORN OU RADIO aRES 18 NATIONS MEMBER OF THE THORN GROUP OF COMPANIES...
- Page 2 SERVICING 500 600 SERIES AMBIOPHONIC UNITS prior follows. The mechanical dismantling followed servicing procedures indicated. dismantle the not remove 6 screws 501, 503, 603, remove any other screws. Lift Carefully release the front extrusion whilst sliding the wooden cabinet backwards. that the metal chassis inside...
-
Page 3: Tuner Alignment
WITH DIAL PULLEY WHEEL CLOCKWISE POSITION FULLY POSITION SHOWN ABOVE CARRIER IN START WITH REARMOST GROOVE, AND CORD IN ROUND PULLEY COMPLETE TURNS WIND CORD AND LOCK CORD IN PULLEY, AT OF THIRD TURN, AS SHOWN. TOTAL LENGTH OF CORD 1020mm DIAL CORD STRINGING ADJUSTING... -
Page 4: Service Hints
Calibration and sensitivity Alignment this frequency on the dial. tune the receiver to 600 kHz the signal generator this maximum meter reading (aerial coil) for T100 (oscillator coil) Adjust frequency. and adjust C106 (oscillator to 1400 kHz Tune the signal generator and receiver maximum meter reading. - Page 5 output Description of complementary stage. power collector the bases transistor complemen- Q402 is directly pair coupled pair, acting class drivers push-pull tary transistors Q404 output Q405 Direct used between the drivers and their corresponding coupling Q406 Q407. collector mode and the output transistors.
- Page 6 WeIZeIP — Losu goso £059 ened onal ZiSy 60su 90su — gigy ¢ Bisy 9AOGe 34ND — 10S9 2]/s YSyVsdS LAdLNO uaNvads :ajonb soso UIOY,], orsa TANNVHO ZHML ‘yun ergy pLSu rcicd LocY eres seal JequINU TSEA vosu yndur “3°a asee]d yNdyno yndul...
- Page 7 WIdav SUINL weiseIp aAoge ‘QISSNISIG jUay BLINM ONINNL :ajonb iNdNi YOLVOIGNI UIOY], CONIWIS 1390S UIUYIM WvYu9 ‘yruN JaquINU WWOdy NolLisog aseajd “3*a 3dVI (ZHOL pamian C907 O!-) ‘Iaquinu sareds Jaquinu dDUVIeJaI NyoHL SHON Sutiapio [apoyy [eas sjIeg (ke) XVN~~NIN yaad --NIN 38a"...
- Page 8 ‘ ’ ‘ 912) — 4213 Sled Yungg mora elec u6Ee sua4iny szul Ot” mors 4noyuo) ‘ N77, SuyeETy OWLNOD yus2s9]ND 1074 —» 12808 }®@pow ANOL WUD) Yo}IMS Ayuo wow, ozzy “3LON SIPPOU! "709 £09 129908 (T3NNVHO Jats ‘wos601p ONISIA aroqn ele.
- Page 9 AMBIOPHONIC DESCRIPTION RIGHT RIGHT FRONT REAR RIGHT LEFT FRONT LEFT REAR LEFT AMP AMBIOPHONIC CIRCUIT FIG. will seen in that the rear speakers connected in Fig. bridge configuration the outputs of the right and the right and across left left amplifiers.
- Page 10 Zealand iORN RADIO INDUSTRIES LIMITED N.LZ. Mangere Bridge, Auckland. P.O. Box 59051, Mangere, Auckland. 36-38 Hastie Ave, notice. subject to change without Specifications may be...
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