Technics SA-222

ORDER NO. §D8012-1811
ervice Manual
FM/AM Stereo Receiver
SA-222
[M], [MC]
Areas
* [M] is available in U.S.A.
* [MC] is available in Canada.
TECHNICAL SPECIFICATIONS _ Specifications are subject to change without notice for further improvement.
I
}
Subsonic
filter
30
Hz,
—6
dB/oct.
(
He
78)
Loudness
control
(volume
at
—30
dB)
50
Hz,
+9
dB
@
AMPLIFIER
SECTION
Low
frequency
damping
factor
30
(8
ohms)
15 (4 ohms)
eat < Load impedance
Rated minimum sine wave RMS power output MAIN or REMOTE 4246 Shine
20 Hz~20 kHz both channels driven MAIN and REMOTE 8~16 ohms
0.04% total harmonic distortion
30W
per
channel
(8
ohms)
@
FM
TUNER
SECTION
1 kHz continuous power output
both channels driven Frequency range 87.9~ 107.9 MHz
0.04% total harmonic distortion Sensitivity 10.8 dBf (1.9 uV, IHF '58)
33W per channel (8 ohms) 50 dB quieting sensitivity
35W per channel (4 ohms) MONO 13.7 dBf (2.7 uV IHF '58)
Dynamic headroom 0.7 dB (8 ohms) STEREO 37.2 dBf (39.7 uV IHF '58)
Total harmonic distortion Total harmonic distortion
rated power at 20 Hz~20 kHz 0.04% (8 ohms) 100 Hz 0.15% (MONO), 0.2% (STEREO)
half power at 20 Hz~20 kHz 0.025% (8 ohms) 1 kHz 0.15% (MONO), 0.2% (STEREO)
half power at 1 kHz 0.009% (8 ohms) 6 kHz 0.3% (MONO), 0.3% (STEREO)
SMPTE intermodulation distortion 0.04% (8 ohms) S/N
PHONO RIAA standard curve +0.8 dB MONO 75 dB
TUNER, AUX, TAPE 5 Hz~70 kHz, —3 dB STEREO 70 dB
20 Hz~20 kHz, +0.2 dB, —0.2 dB Frequency response 20 Hz~15 kHz, +1 dB —2 dB
Input sensitivity Alternate channel selectivity 70 dB
PHONO 0.5 mV (2.5 mV, IHF '66) Capture ratio 4.2dB
TAPE 30 mV (150 mV, IHF '66) image rejection at 98 MHz 55 dB
S/N (IHF, A) IF rejection at 98 MHz 75 dB
PHONO 75 dB (80 dB, IHF ’66) Spurious response rejection at 98 MHz 82 dB
TUNER, AUX, TAPE 80 dB (95 dB, IHF '66) AM suppression 55 dB
Maximum input voltage Stereo separation
PHONO 120 mV (130 mV, 1 kHz) 1 kHz 42 dB
Input impedance 10 kHz 32 dB
PHONO 47 kilohms Carrier leak
TAPE 22 kilohms 19 kHz ~38 dB
Tone controls 38 kHz ~60 dB
BASS
50
Hz,
+10
dB~
-10
dB
Antenna
terminals
300
ohms
(balamced)
TREBLE
20
kHz,
+10
dB~
-10
dB
75
ohms
(unbaamced)
Panasonic Company Panasonic Hawaii, Inc. Panasonic Canada
Ti nh = Division of Matsushita Electric 320 Waiakamilo Road, Honolulu, Division of Matsushita Electric,
ec nics Corporation of America Hawaii 96817 of Canada Ltd.
One Panasonic Way, Secaucus, 5770 Ambler Drive,
New Jersey 07094 Mississauga, Ontario L4W 2T3

Technics SA-222 Specifications

General

Brand	Technics
Model	SA-222
Category	Stereo Receiver
Language	English

Summary

Technical Specifications

Amplifier Section

FM Tuner Section

Disassembly Instructions

How to Remove the Cabinet

How to Remove the Bottom Board

How to Remove the FMAM Preset Tuning Printed Circuit Board and the Analog Frequency Meter

How to Remove the Power IC

Adjusting Instructions

AM Tuner Adjustment

Steps for calibrating the AM tuner section for optimal performance.

AM-IF Adjustment

Procedure for adjusting the Intermediate Frequency (IF) stages for AM reception.

Analog Frequency Meter Adjustment

Steps to calibrate the analog frequency meter display for accuracy.

AM-RF Adjustment

Procedure for adjusting the Radio Frequency (RF) stages for AM reception.

FM Tuner Adjustment

FM-IF Adjustment

Procedure for adjusting the Intermediate Frequency (IF) stages for FM reception.

FM RF Adjustment

Procedure for adjusting the Radio Frequency (RF) stages for FM reception.

FM Muting Level Adjustment

Steps to set the FM muting sensitivity level.

FM MPX Pilot (VCO) Adjustment

Procedure for adjusting the FM Multiplex Pilot (VCO) circuit.

Stereo Distortion Adjustment

Block Diagram

Printed Circuit Board

Schematic Diagram

Change of Schematic Diagram