Technics SAHT 220 Service Manual

Page 1

*-
AV Control Stereo Receiver

nP_FIO'LOGIC

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SA-

ORDER NO. MD9802082A1

Service Manual

Colour

Receiver

T220

(K) ....... Black Type

Area
Suffix for A
Model No. rea Colour
(PP) U.S.A. and Canada (K)

Please file and use this Service Manual together with the Service Manual to Model No. SA-EX310 (P, PC) Order No. MD970302201

Note : This Simplified Service Manual is provided to indicate the main difference between the orginal Model No. SA-EX310 (P, PC) and the

subsequent Model No. SA-HT220 (PP).

I Specifications

I FM Tuner Section AM suppression
Frequency range 879 - 107.9 MHz Stereo 5393mm"
Sensitivity 11.2 dBf (2w, IHF '58) 1 kHz

50 dB quieting Sensitivity 10 kHz V
MONO 18.3 dBt (4.5nv, IHF '58) Antenna termmaliS)
STEREO 38.8 dBf (45uV, IHF 58)

Total harmonic distortion I AM Tuner Section
MONO 0-2 % Frequency range
STEREO 0,3 % Sensimy

SIN Selectivity
MONO 73 13 IF rejection at 1000 kHz
STEREO 67 dB

Frequency res onse 20 Hz - 15 kHz +1 dB, -2 dB) . .

Alternate changel selectivity ( 65 dB I V'deo Section

Capture ratio 1.5 dB Output voltage at 1 V input (unbalanced)

Image rejection at 98 MHz 40 dB Maximum input voltage

Spurious response rejection at 98 MHz 75 dB Input/output impedance

50 dB

40 dB
30 dB
75 Q (unbalanced)

530 -- 1710 kHz
20 uV, 330 pV/m
55 dB
50 dB

1 t 0,1 Vp-p
1.5 Vp-p
75 £2

A WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does
not contain warnings or cautions to advise non-technical individuals of potential dangers' In attempting to service a product Products
powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair
the product or products dealt with in this service information by anyone else could result In serious injury or death

Panasonic®

© 1998 Matsushita Electronics (S) F'te. Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.

Contents

Page 2

SA-HT220

l Amplifier Section

Rated minimum sine wave RMS power output
40 Hz - 20 kHz both channels driven
0.8 % total hamonic distortion 70 W per channel (89)

1 kHz continuous power output, both channels driven
0.05% total harmonic distortion 73 W

perchannelwfl)

Total harmonic distortion
Rated power at 40 Hz - 20 kHz
Half power at 1 kHz

0.8 % (80)
007 % (39)

Power output at the Dolby Pro Logic operation 0.9 % at 1 kHz,

Front 2 X 70 W (89)
Center 70 W (89)
Surround 70 W (an)
Low frequency damping factor 30 (89)
Load impedance
Front 8 9
Center 8 Q
surround 4 - 8 (2
Frequency response
PHONO RIAA standard curve 1 0.8 dB

CD, TAPE, VCFI, TV/DVDIDSS
Input sensitivity

10 HZ~70 kHZ,15dB

CD, TAPE, VCR, TVIDVDIDSS
SIN (IHF A)

PHONO 70 dB (78 dB, IHF 66)

CD, TAPE. VCR, TV/DVD/DSS 75 dB (83118, IHF 66)
Input impedance

27mv (200mV, IHF 66)

PHONO 47 kn

CD, TAPE, VCR, TV/DVD/DSS 22 k0
Tone controls

BASS 50 HZ, +10 to -10 dB

TREBLE 20 kHz, +10 to -10 dB

Subwoofer lrequency responce 7 Hz - 100 Hz, 13 dB

I General

Power consumption
Power supply
Dimensions (W x H x D)

175 W (In standby condition : 2W)
AC i20V, 60Hz

430 x136 x 309 mm

new/6 x 5/32' x 125/32")

Weight 5.4 kg (142 lb,)

Notes :
1 Specifications are subject to change without notice.
Weight and dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum

PHONO 0.4mV (3mV, IHF 66) analyzer

I Changes In Replacement Parts List

Notes: " Mentioned in this parts list is only those dillerent from Model No. SA-EX310 ( P ),
' [M] Indicates in the Remarks columns indicates parts supplied by MESA.

Change of Parts Number
Ref. No Description SA-EX310P-K + S A-HT22 OPP-K Remarks
CABINET AND CHASSIS
1 TOP CABINET RKMOZGOC-K [M] RKM0374A-K [M] Changed
2 REAR PANEL ( P ) RGR0251A-A [M] RGR0251A-E [M] Changed
7 BOTTOM CHASSIS ASSY RFKJEXSIOPK [M] RFKJHTZIOPPK [M] Changed
11 SELECTOR BUTTON RGU1493-K [M] RGU1493D-K [M] Changed
16 FRONT PANEL ASSY RFKGEXSI OPK [M] RFKGHTZZOPPK [M] Changed
16-1 FL WINDOW RKW04SBC-Q [M] RKW04366-Q [M] Changed
29 HELP BUTTON -~- RGU1398-Q [M] Added
ACCESSORIES
A1 REMOTE CONTROL EUR644347 [M] EUR646464 [M] Changed
A1-1 REMOTE CONTROL BATTERY COVER UR64EC1822 [M] UR64EC1987B [M] Changed
A4 O/I BOOK RFKSEX310FK [M] RQT4264-Y [M] Changed
A4 O/I BOOK FOR REMOTE CONTROL RQT4422-Y [M] Added
TRANSISTORS
0106 TRANSISTOR UN411FI'A [M] RVTDTAI48XST [M] Changed
0705 TRANSISTOR 280174OSSTA [M] 2SC3311AQSTA [M] Changed
0936 TRANSISTOR --- FIVTDTC114YST [M] Added