Technics ST-8044

ORDER NO. SD7811-°
Service
Manual
FM/AM
Stereo
Tuner
ST-8044
(E), (EG), (X), (XA),
(XAL), (XGH)
ST- 8044K
ew
(EG),
(X),
(XA),
ST-8044
ae
Me.
.
ae
as
ety
(EB)
* The models ST-8044 (E, EG) and ST-8044K (E, EG) are
available in Scandinavia and European only.
*The models ST-8044 (X, XA) and ST-8044K (X, XA)
are
available
in
Asia,
Latin
America,
Middle
East
and
Africa only.
*
The
models
ST-8044
(XAL)and
ST-8044K
(XAL)
are
available
in
Australia
only.
*The models ST-8044 (XGH) and ST-8044K (XGH) are
available in Holland only.
*
The
mode!
ST-8044K
(EB)
is
available
in
Belgium
only.
ST-8044K
TECHNICAL
SPECI
FICATIONS
Specifications
are
subject
to
change
without
notice
for
further
improvement.
[DIN
45
500]
FM
TUNER
SECTION
Limiting
point
1.2uV
Frequency
range
88
~
108
MHz
Bandwidth
IF
amplifier
180
kHz
Antenna
terminals
3002
(balanced),
752
(unbalanced)
FM
demodulator
pone
Sensitivity
(£40
kHz
deviation)
Channel
balance
(250
Hz
~
6300
Hz)
4+1.5dB
S/N 30 dB 1.9uV (3000), 1.34V (750)
AM TUNER SECTION
S/N 26 dB 1.7uV (3002),1.2uV (750)
S/N
20
dB
1.5uV
(3002),
0.9#V
(75Q)
Frequency
range
525
~
1605
kHz
IHF
usable
sensitivity
1.9uV
(IHF
‘58)
Sensitivity
(S/N
20
dB)
30KV,
250p4V/m
IHF
S/N
46
dB
stereo
quieting
sensitivity
25uV
(750)
Selectivity
30
dB
Total
harmonic
distortion
MONO
0.15%
Image
rejection
at
1000
kHz
50
dB
STEREO
0.3%
IF
rejection
at
1000
kHz
40dB
S/N (440 kHz deviation} MONO 68 dB (IHF: 75 dB)
STEREO 65 d8 (IHF: 70dB) GENERAL
Frequency
response
20
Hz
~
15
kHz,
+0.5
dB,
—1.5dB
Output
voltage
0.6V
Alternate
channel
selectivity
75
dB
Power-consumption
ices
Capture
ratio
1.0dB
Power
supply
(50
Hz/60
Hz)
110V/120V/220V/240V
tmage
rejection
at
98
MHz
55
dB
Dimensions
(W
x
H
x
D}
en
hee
425
pet
IF
rejection
at
98
MHz
85
dB
(165%6"
x
69%"
x10")
Spurious
response
rejection
at
98
MHz
80dB
Weight
4.2
kg
(9.3
Ib.)
AM suppression 55 dB
Stereo separation 1kHz 45 dB, 10 kHz 35dB
Leak carrier 19 kHz —35dB (—40dB, IHF)
38 kHz ~—48dB (—40 dB, IHF)
1
Matsushita
Electric
Trading
Co.,
Ltd
Technics
PO.
Box
288,
Central
Osaka
Jz

Technics ST-8044 Specifications

General

Brand	Technics
Model	ST-8044
Category	Tuner
Language	English

Summary

Service Manual Technical Specifications

FM Tuner Section Specifications

Detailed technical specifications for the FM tuner, including frequency range, sensitivity, and distortion.

AM Tuner Section Specifications

Technical specifications for the AM tuner, covering frequency range, sensitivity, and selectivity.

General Tuner Specifications

Overall technical details for the unit, including output voltage, power consumption, and dimensions.

ST-8044 K Control Locations

Dial Cord Installation Procedure

Tuner Alignment Points Guide

FMAM Tuner Alignment Procedures

FM Intermediate Frequency (IF) Alignment

Procedure to adjust Intermediate Frequency (IF) stages for optimal FM reception.

FM Radio Frequency (RF) Alignment

Procedure to align the Radio Frequency (RF) front-end for maximum signal sensitivity.

FM Mono Distortion Adjustment

Procedure to minimize distortion in mono FM reception.

FM Muting Level Setting

Procedure to set the threshold for the FM muting function.

Unit Disassembly and Cabinet Removal

Overall System Block Diagram

Electric Components Parts List

Circuit Board Wiring Diagram

ST-8044 K Schematic Diagram

Integrated Circuit Block Diagrams

Component Exploded View

Cabinet and Chassis Parts List

Accessories and Packing Parts List

ST-8044 K Model Parts Change List

Unit Packing Instructions

New Indication Mark Explanation