Technics SH-8055 User manual

ORDER No. HAD85071734
Service Manual
Stereo Graphic Equalizer Equalizer
(With
Spectrum
Analyzer)
S
H
8055
Color
({K).... Black Type
Color Area
{K) | [PA] ...Far East PX
(K)
|
[PE]
...
European
Military
~
f Please use this manual together with the service manual for Model No. SH-8055, Order No. SD83062526C9.
J
CHANGE
Wi REPLACEMENT PARTS LIST
Notes:
(1) Mentioned in this parts list are only those changed in Model No. SH-8055 for destination [PA, PE] area (silver type).
(2) Important safety notice:
Conponents identified by A\ mark have special characteristics important for safety. When replacing any of these
components, use only manufacturer’s specified parts.
Change of Parts No.
Ref.
No.
SH-8055
SH-8055
Part
Name
&
Description
moet
Remarks
[PA,PE]
Silver
Type
P
[PA,PE]
Black
Type
il
RESISTORS
R45, ERD25TJ124 ERD257TJ154 Carbon, 150kQ, 1/4w, +5% 1
R539 ERD25FJ471 ERD25FJ561 Carbon, 56092, 1/4W, 5% 1 Fig. 1
R556 a ERD25FJ472 Carbon, 4.7kQ, 1/4W, +5% 1 Fig. 1
R643~646 ERD25FJ152 ERD25FJ222 Carbon, 2.2kQ,, 1/4W, +5% | 4
CABINET and CHASSIS PARTS.
qT
SGWK210PA SGWK210BA
Front
Panel
7
1
|
a SDUK8 SDUK8—1 Dial Plate 1
3 SGXK75 SGXK75-1 Ornament Cover 1
4 SGXK76 SGXK76-1 Ornament Cover 1
5 SGUK10 SGUK10—1 Transparent Plate 1
6 SGXK74 SGXK74—1 Sub Front Panel 1
8 SBD69—3K SBD69—1 Button, Display Level 1
10 SBC475—1 SBC475 Button 4
26 SKCK110S SKCK110B Cabinet i
SCREWS
N1 XTB3t+8B XTB3+8BFZ Screw, Panel M’tg. 3
Ni2 SNE2095—2 SNE2095—5 Screw, Cabinet M’tg. 4
PACKING PARTS
PI SPGK116 SPGK208 Carton Box 1
P4 ‘SPP699 SPPK47 Polyethylene Bag 1
e Panasonic Tokyo Office
Matsushita Electric Trading Co., Ltd. Matsushita Electric Trading Co., Ltd.
1CS
1-2,
1-chome,
Shiba-koen,
Minato-ku,
Tokyo
105
Japan
P.O.
Box
288,
Central
Osaka
“pen
«
\

!
SH-8055
eae
" BLADDITION OF RESISTOR
BeHVHaeonreee
e601
SVIM 54834P
V4eh SELECTOR
Be O FHmOmeaae
ei go Gi. Ge GND
8
3
gsi 4708
556 47k
port
14ch. SELECTOR
Change Addition
4702 — 5602
Fig. 1
Mi POWER SOURCE CIRCUIT
AC 110/127/220/240V
(60/60H2)
Fig. 2
Printed in Japan
\
,
ook,
“850700830
®
KK

ORDER NO. HAD8510275P0
Parts
Change
Notice
SH—8055
[M,
MC]
Service
Manual
Model
No.
SH—8055
S/K
[E,
EK,
EF,
EB,
EH,
EGA,
XA,
XL]
Order
No:
Sbe30e250969
Please revise the original parts list in the Service Manual to conform to the change (s)
shown herein. If new part numbers are shown, be sure to use them when orderring parts.
Reason for Change *The circled item indicates the reason. If no marking, see the Notes in the bottom column,
1. Improve performance
Change of material or di
Standardization
8. Other
Interchangeability Code **The circled item Indicates the interchangeability. If no marking, see the Notes in the bottom column.
Parts Set Production!
sgt eine Fatty. ! Original or new parts may be used in early or late production set.
Nee ‘Cale | Use original parts until exhausted, then stock new parts.
eS Early } Original parts may be used in early production sets only. New parts may be used in early or late
Nani ak | production sets. Use original parts where possible, then stock new parts.
og Onn Early. | New parts only may be used in early or late production sets.
hee, tte ae {Stock new parts.
ioe Ey | Original parts may be used in early production sets only. New parts may be used in late
New Late | production sets only. Stock both original and new parts.
E Other Hl
Part Number
Model No. Ref. No. | _ Original Part No. New Part No. Part Name & Descriptions
CABINET and CHASSIS PARTS
SH-8055,
3
SGX75
SGX76
7,E
Ornament
1
4 SGX76 SGX75 TE Ornament
—
SH-8055(S/K)
3
SGXK75
SGX76
7E
Ornament
3
SGX75—1
SGX76-1
TE
Ornament
1
4
SGX76 SGX75
7,E
Ornament
1
4
SGX76-1
SGX75—-1
Ornament
File this Parts Change Notice with your copy of the Service Manual.
oe
Matsushita
Service
Company
Panasonic
Hawaii,
Inc.
Matsushita
Electric
Trading
Co,,
Ltd.
50 Meadowland Parkway, 91-238 Kauhi St., Ewa Beach P.O. Box 288, Central Osaka Japan
Secaucus, P.O. Box 774
New Jersey 07004 Honolulu, Hawaii 96808-0774
Panasonic Sales Company, Matsushita Electric
Division of Matsushita Electric of Canada Limited
of Puerto Rico, inc. 5770 Ambier Drive, Mississaugs,
‘Ave. 65 De Infanteria, KM 9.7 Ontario, Law 273 Printed in Japan
Victoria, Industrial Park: 851000400 ® IM
Carolina, Puerto Rico 00630

ORDER NO. HAD8507173A4
ervice
Manual
Stereo Graphic Equalizer eeualizer
(With
Spectrum
Analyzer)
S
H
-
80
55
Color
.
(K)..... Black Type |
Color Area
(K) | [PA] ...Far East PX
(K) | [PE] ... European Military
~
[
Pre
use
this
manual
together
with
the
service
manual
for
Model
No.
SH-8055,
Order
No.
SD83062526C9.
_)
CHANGE
Wi
REPLACEMENT
PARTS
LIST
Notes:
(1)
Mentioned
in
this
parts
list
are
only
those
changed
in
Model
No.
SH—8056
for
destination
[PA,
PE]
area
(silver
type).
{2) Important safety notice:
Conponents
identified
by
A.
mark
have
special
characteristics
important
for
safety.
When
replacing
any
of
these
components,
use
only
manufacturer's
specified
parts.
Change of Parts No.
Ref.
No.
'SH-8055
‘SH-8055
Part
Name
&
Description
leet
Remarks
[PA,PE]
Silver
Type
IPA,PE]
Black
Type
|
RESISTORS
R45
ERD25TJ124
ERD25TJ154
Carbon,
150k,
1/4W,
£5%
i
“4
c
R539
ERD25FJ471
ERD25FJ561
Carbon,
56082,
1/4W,
+5%
1
Fig.
1
R556
ERD25FJ472
Carbon,
4.7kS2,
1/4W,
45%
iz
1
Fig.
1
R643~646
|
ERD25FI152
ERD25FJ222
Carbon,
2.2k82,
1/4W,
45%
4
iz
CABINET
and
CHASSIS
PARTS
1
SGWK210PA
‘SGWK210BA
Front
Panel
1
|
2
‘SDUK8
SDUK8-1
Dial
Plate
i
3
SGXK75
SGXK75—1
Ornament
Cover
cf
4
SGXK76
SGXK76—1
Ornament
Cover
1
=
5
SGUK10
SGUK10—1
Transparent
Plate
1
6
SGXK74
SGXK74—-1
‘Sub
Front
Panel
1
|
8
‘SBD69—3K
‘SBDE69—-1
Button,
Display
Level
1
[
10
SBC475—1
SBC475
Button
4
26
SKCK110S
L
SKCK110B
Cabinet
fe
pay
le
SCREWS
NI
XTBS8B
XTBS+BBFZ
“|
Screw,
Panel
M’tg.
3
NI2
[_
SNE2095—2
‘SNE2095—5
‘Screw,
Cabinet
Mtg.
L
4
a
PACKING
PARTS
PI
‘SPGK116
‘SPGK208
Carton
Box
T
PA
SPP699
‘SPPK47
Polyethylene
Bag
Panasonic Tokyo Office
e@
Matsushita
Electric
Trading
Co.,
Ltd.
Matsushita
Electric
Trading
Co.,
Ltd.
]
1-2,
1-chome,
Shiba-koen,
Minato-ku,
Tokyo
105
Japan
P.O.
Box
288,
Central
Osaka
Japan

Baw S Baeaenete
ic 501
SVIM 54834P
Veen SELECTOR
OADMOBaaa
Rc. Ge GND
OOOO
6502 10v100
Rese 79?
t
agg 4.7K
*
14ch, SELECTOR
Changs Addition
4702 —~ 5602 ; ;
Fig. 1
li POWER SOURCE CIRCUIT
ac ourter
A ‘erowitenes)
Ac 110/127/220/240V
(60/60H2)
Fig. 2
© aPrinted in Japan
50700830 &@ KK

ORDER NO. SD83062526C9—A *
Stereo
Graphic
Equalizer
S
H}-
89
55/SH-
8055
k)
© This booklet contains the specifications for SH-8055, written in Germany, French and Spanish, and the circuits to be
changed according to areas.
© File this manual together with the SH-8055 service manual (Order No. SD83062526C9).
© Das vorliegende Biichlein enthalt die Spezifikationen fiir SH-8055 in deutscher, franzésischer und spanischer Sprache.
© Bewahren Sie das Biichlein zusammen mit der Bedienungsanleitung fiir SH-8055 (Bestell-Nr. SD83062526C9) .
© Cette brochure contient les spécifications pour le SH-8055, écrites en allemand, en frangais et en espagnol.
© Classer ce manuel en méme temps qu’avec le manuel de service du SH-8055 (N° d’ordre : (SD83062526C9).
@ Este librito contiene la especificaciones para SH-8055, escritos en aleman, francés y espafiol.
© Guardar este manual juntamente con el manual de servicio de SH-8055 (Pedido N°. SD83062526C9).
WM CHANGE OF SCHEMATIC DIAGRAM
Power source
For continental Europe For [XA], [PA] and [PE] areas
110/120/220/240V
{180/60 He)
HE TECHNISCHE DATEN spezitikationen Konnen infolge von Verbesserungen ohne Ankundigung geandert werden.)
[ (DIN 45 500) Frequenzgangregler 14+12dB~-12dB
Frequenzgang (12 Regler, stufentos verstellbar)
(mittelstellung drehen) : 5 Hz~100 kHz, —1 dB Mittenfrequenzen 125 Hz, 40'Hz, 63 Hz, 100 Hz, 160 Hz,
Maximalausgangs-
250
Hz,
500-Hz,
1
kHz,
2
kHz,
4
kHz,
spannung
:8V(1
kHz,
THD
0,01%)
8
kHz,
16
kHz
Nennausgangsspan-
Ausgangsspannung
fir
nung
1V
rosa
Rauschen
:50mV
Nennklirrfaktor
1
0,003%
(20
Hz~20
kHz)
Mikrofonempfindlichkeit
:
Gber
—74
dBV/j
bar
(1
kHz)
0.002%
(1
kHz)
Mikrofondampfung
:-20dB
Eingangsspannung
:1V
ALLGEMEINE
DATEN
Gerauschabstand
:
102
dB (110
dB,
IHF,
A)
Stromversorgung
:
Wechselstrom,
110
V/120 V/220
W
Maximaleingangs-
240
V,
50
Hz/60
Hz
spannung
:8V(1
kHz)
Leistungsaufnahme
:17W
Eingangsimpedanz
:47kQ
Abmessungen
Verstarkung
:0+1dB
(HXBXxT)
:108x
430x270
mm
Kanalsy
mmetrie
(4-1/4"
16-15/16"
x
10-5/8")
250
Hz~6300
Hz
:£0,5dB
Gewicht
24,1
kg
(9,0
Ib)
Kanaltrennung1kHz
—:
70
dB
DEUTSCH

ESPANOL
ME
CARACTERISTIQUES
(sujet
a
changement
sans
prearis.)
(DIN 45 500)
Réponse de fréquence
(position centrale)
:5Hz~100
kHz,
-1dB
Tension
de
sortie
maximale
+8V
(1
kHz,
THD
0,01%)
Tension
de
sortie
nominale nV
Distortion harmonique
total
10,003%
(20
Hz~20
kHz)
0,002% (1 kHz)
Sensibilité d’entrée 31
Signal/Bruit
:
102
dB
(110
dB,
IHF’
A)
Tension
d’entrée
maximale :8V (1 kHz)
Impédance d’entrée 147kQ
Gain :0+1dB
Equilibrage de canal
250 Hz~6300 Hz :+0,5dB
Séparation de canal
1kHz :70dB
Commandes de niveau
de
gamme
14+12dB~-12dB
(12 éléments, continuellement
variables)
Fréquences charniéres : 25 Hz, 40 Hz, 63 Hz, 100 Hz,
160 Hz, 250 Hz, 500 Hz, 1 kHz,
2 kHz, 4 kHz, 8 kHz, 16 KHz
Tension de sortie des
bruits roses 750mV
Sensibilité de microphone
compatible
:
plus
de
—74
dBV/pbar
(1
kHz)
Attenuateur de
microphone
gis
20
dB
GENERALITES
Alimentation
CA,
110
V/120
V/220 V/240
V,
50 Hz/60 Hz
Consommation r17W
Dimensions
(hxixpr) :108x430x270 mm
(4-1/4 16-15/16"x 10-5/8")
Poids 14,1kg (9,0 Ib)
HE
ESPECIFICACIONES
estas
especiticaciones
estan
sujetas
9
cuaiquier
cambio
sin
previo
eviso.)
(DIN 45 500)
Respouesta de frecuencia
(posicion
central)
:5Hz~100
kHz,
—1dB
Tensi6n
de
salida
maxima
:8V
(1
kHz,
THD
0.01%)
Tension
de
salida
de
régimen : 1V
Distorsién armonica
total
nominal
1
0.003%
(20
Hz~20
kHz)
0.002% (1 kHz)
Sensibilidad de entrada :1V
Relaciéndsefialruido
:
102
dB
(110
dB,
IHF’
A)
Tensién de entrada
maxima :8V (1 kHz)
Impedanciade entrada: 47kOQ
Ganancia :0+1dB
Equilibrio de canales
250 Hz~6300 Hz 2 £0,5dB
Separacion de canales
1kHz :70dB
Controles de nivel de
banda :+12dB~—12dB
(12 elementos, continuamente
variables)
25 Hz, 40 Hz, 63 Hz, 100 Hz,
160 Hz, 250 Hz, 500 Hz, 1 kHz,
2 kHz, 4 kHz, 8 kHz, 16 KHz
Frecuencia central
Voltaje de salida del
ruido rosado 750mV
Sensibilidad del
micréfono
compatible
:
por
sobre
—74
dBV/ybar
(1
kHz)
Atenuador de microfono : —20 dB
EN GENERAL
Alimentacion de
corriente
:C.A.
de
110
V/120 V/220
V/240
V,
50 Hz/60 Hz
Consumo decorriente :17W
Dimensiones
(altoxanchoxprof.)
:108x430x270
mm
(4-1/4"x 16-15/16"x 10-5/8")
Peso
24,1
kg
(9,0
lb)
Printed in Japan
830609600 ®KK/IM @

*
The
colors
of
this
model
include
silver
and
black,
*
The
black
type
model
is
provided
with
(K)
in
the
Service
Manual.
)
ORDER NO. sD83062526!
Service
Manua
Stereo
Graphic
Equalizer
SH- 8055
[E], [EK], {EF],[EB],[EH], [EGA],
[XA],[XLI,[PA],[PE] [Ei]
SH-8055(k)
(E], [EK], [EF], [EB], [EH],
[EGA],[XA],[XL]
*
[E]
is
available
in
Scandinavia
and
Switzerland,
* [EK] is available in United Kingdom.
* [EF] is available in France.
* [EB] is available in Belgium.
* [EH] is available in Holland.
*
[EGA]
is
available
in
F.R.
Germany.
*
[XA]
is
available
in
Southeast
Asia,
Oceania,
Africa,
Middle
Near
East
and
Central
South
America.
* (XL] is available in Australia,
* [PA] is available in Far East PX,
* [PE] is available in European
*
[Ei]
is
available
in
Italy.
Areas
Specifications
(DIN 45 500)
Frequency response
(center position)
Maximum output
voltage
Rated output voltage
Rated total harmonic
:5 Hz~100 kHz, —1 dB
18V(1 kHz, THD 0.01%)
1V
(Specifications
are
subject
to
change
without
notice
for
further
improvement.)
Band
level
controls
:412dB~—12dB
(12
elements
continuously
variable
per
channel)
225
Hz,
40
Hz,
63
Hz,
100
Hz,
160
Hz,
250
Hz,
500
Hz,
1
kHz,
2
kHz,
4
kHz,
8
kHz,
16
kHz
Center frequency
Pink noise output
distortion
0.003%
(20
Hz~20
kHz)
voltage
:50mV
0.002%
(1
kHz)
Compatible
microphone
input
sensitivity
n1V
sensitivity
:
above
~74.dBV/jbar
(1
kHz)
!
Signal-to-noise
ratio
:
102
dB
(110
dB,
IHF’
A)
Microphone
attenuator
:
—20dB
Maximum
input
voltage
:8V(1kHz)
GENERAL
Input
impedance
:47kQ
Power
supply
AC
110-V/120
V/220 Vi240
V,
Gain
:0+1dB
50
Hz/60
Hz.
Channel
balance
Power
consumption
:17W
>
250
H2~6300
Hz
40.5
dB
Dimensions
Channel
separation
(HxWxD)
2108430270
mm
1
kHz
:70dB
(4-1/4"
16-15/16"x
10-5/8")
Weight
24.1
kg
(9.0
Ib)
@
CONTENTS
SAFETY PRECAUTION
BLOCK
DIAGRAM
OF
FUNCTION
.
LOCATION
OF
CONTROLS
...
+
REAL
TIME
SPECTRUM
ANALYZER
.
PINK NOISE ....
HOW TO USE THE REAL TIME
SPECTRAM ANALYZER
Page
RWWNN
5
DISASSEMBLY
INSTRUCTIONS.........
TOTAL
FREQUENCY
RESPONSE
PRINTED
CIRCUIT
BOARDS
.
REPLACEMENT
PARTS
LIST
.
EXPLODED
VIEW
...
.
SCHEMATIC
DIAGRAM
BLOCK
DIAGRAM
.
SPECTRUM
ANALYZER
AND
TIMING
CHART.
Panasonic Tokyo
Technics
Matsushita Electric Industrial Co., Ltd.
1-2, 1-chome, Shiba-koen, Minato-ku, Tokyo 105 Japan
Matsushita Electric Trading Co., Ltd.
P.O. Box 288, Central Osaka Japary

ACETEES
Mi
SAFETY
PRECAUTIONS
.
Before
servicing,
unplug
the
power
cord
to
prevent
an
electric
shock.
.
When
replacing
parts,
use
only
manufacturer’s
recommended
components
for
safety.
.
Check
the
condition
of
the
power
cord.
Replace
if
wear
or
damage
is
evident.
.
After
servicing,
be
sure
to
restore
the
lead
dress,
insulation
barriers,
insulation
papers,
shields,
etc.
.
Before
returning
the
serviced
equipment
to
the
customer,
be
sure
to
make
the
following
insulation
resistance
test
to
prevent
the
customer
from
being
exposed
to
a
shock
hazard.
ORWNS>
e RUE ATION RESISTANCE TEST
.
Unplug
the
power
cord
and-short
the
two
prongs
of
the
plug
with
a
jumper
wire.
iE Turn on the power switch.
3.
Measure.
the
resistance
value
with
ohmmeter
between
the
jumpered
AC
plug
and
each
exposed
metal
cabinet
part,
such
as
screwheads
antenna,
control
shafts,
handle
brackets,
etc.
Equipment
with
antenna
terminals
should
read
between
3MQ.
and
5.2MG&
to
all
exposed
parts.
(Fig.
A)
Equipment
without
antenna
terminals
should
read
approximately
infinity
to
all exposed
parts.
(Fig.
B)
Note:
Some
exposed
parts
may
be
isolated
from
the
chassis
by
design.
These
will
read
infinity.
Antenna
terminal
Exposed Exposed
metal metal
part part
Ohmmeter
Ohmmeter
(Fig.A) (Fig. B)
Resistance
=
3M2—5.2MQ
Resistance
=
Approx
0O
4,
lf
the
measurement
is
outside
the
specified
limits,
there
is
a
possibility
of
a
shock
hazard.
The
equipment
should
be
repaired
and
rechecked
before
it
is
returned
to
the
customer.
Mi
BLOCK
DIAGRAM
OF
FUNCTION
(display mode)
t inicnok For detail, refer to Block Diagram on page 28.
Line input ©
tapet
Tape deck 1 “playback” O——O
Tape deck 2 “playback” otee2t
Tape deck 1 ‘Rec out”
Equalizer
(mic attenuator)
—20dB OdB
Tape deck 2 ‘Rec out”
Line output O
(display mode)
Reh.
level)