Technics ST-G90L Service Manual

ORDER NO. AD8804015C2
cUIRTZ Synthesizer
LWIMWIFM Stereo Tuner
SPECIFICATIONS
(DIN 45 500)
• FM TUNER SECTION
Frequency range
-
Sensltlvity
SIN 30dB
SIN 26dB
SIN 20dB
IHF 46dB stereo quleting sensltivity
Totai harmonlc distortion
MONO (formai)
STEREO (normai)
SIN
MONO
STEREO
Frequency responso
Alternate channel selectivity
normal ±400kHz
super narrow ±200kHz
Capture ratio
Image rejectlon at 98MHz
IF rejeciion ai 98MHz
Spurious response rejectlon ai 98MHz
AM suppresslon
Stereo separation
i kHz
70kHz
0.07 5%
0.02%
55d B
30dB
1.0dB
730 d B
730dB
130dB
55dB
60 dB
45dB
Tuner
ST-G9OL
Area
Carrier leak
19kHz
38kHz
Channel balance (250 Hz—6,300 Hz)
Llmltlng point
Bandwidth
IF amplifler
FM demodulator
Antenna termlnals
• AM TUNER SECTION
Frequency rango
MW
Sensi tivity (SIN 20dB)
MW
LW
Selectivity (±9kHz)
MW (at 999kHz)
LW (ai 254kHz)
Color
Technics
Matsushita Electric Industrial Co., Ltd.
(K)...Black Type
Color Area
(K) (EK) United Kingdom.
(K) (EB) Belgium.
(K) (EF) France.
(K)
(EW) Switzerland..
87.50--108.00 MHz
87.525-108.00MHz (+25kHz shift)
1.5pV (IHF, usable)
7.3,iV (750)
1.21V (750)
0.9pV (750)
28pV/750
80dB (86dB, 1H9
74dB (79dB, IHF)
4Hz—l5kHz, +0.5dB——0.5dB
LW
—75dB (—80dB, IHF)
—75dB (—80dB, IHF)
±1.0dB
0.851jV
180kHz
1000kHz
750 (unbalanced)
522kHz—1611 kHz (9kHz-steps)
53OkHz—l62OkHz (lOkHz-steps)
155 kHz—353 kHz (9 kHz-steps)
l53kHz—351 kHz (—2kHz shift)
2011V, 3001IV/m
5OpV
50dB
50dB
Central PD. Box 288, Osaka 530-91, Japan