Sansui-AU4400-int-sm 电路图 维修手册.pdf

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1、SERVICE WTAL STEREO AMPLIFIER $tful u-400 RadioFans.CN 收音机爱 好者资料库 Gau-4400 This service manual is designed for service engineers to repair, adjust, maintain and order the replacement parts of the AU-4400 correctly. When ordering the parts, use the stock number and parts name speci- fically referring

2、 to the Parts Locations Zfi ,t?llo,a I NTERMODULATION DISTORTI ON (at rated power output, 70H z: TkHz- 4 :1 SMPTE method) OVERALL (from AUX) . .less than 0.5% FREQUENCY RESPONSE (at 1 Watt power output) OVERALL (from AUX) .20 to 30,000H2 lldg (30H2-15kHz +1dB) DAMPING FACTOR .50 (BO) CHANNEL SEPARAT

3、ION (1kHz at rated power output) PHONO . . .better than 45dB TUNER, AUX, TAPE . . . . better than 45dB IHF HUM AND NOISE PHONO . . .better than 70dB MIC . o.better than TOB TUNER, AUX, TAPE . . . . better than B5dB INPUT SENSITIVITY AND IMPEDANCE (1kHz for rated power output) PHONO . o. .2.5mV 50kO

4、(Max. input capability: l00mV al 0.2% distortion) MIC . .2.5mV 10kO TUNER, AUX . o.150mV 50kO TAPE RLAY (Pin jack) . .150mV 50kO TAPE REC/PLAY (DlN socket) . . . . o. . . .150mV 50kO RECORDING OUTPUT TAPE REC (Pin jack) . . . .150mV TAPE REC/PLAY (DlN socket) . .30mV SWITCHES AND CONTROLS BASS . . .

5、 . . . . . . . . . . . o . . . + 12d8, -12d8 (50H2) TREBLE . +12d8, -12d8 (15kHz) L o u *: l: 1 T : :1l*,1,r + BdB (10kHz) LOW FILTER . . . . . . . . . . -3dB (100H2, 6dB/oct.) HICH FILTER . -3dB (7kz,6dB/oct.) U, , OTHERS SEMICONDUCTORS TRANSISTOR . . . o .17 DIODES . . lCS. o . . . . o. .4 LED . .

6、 . o. .l POWER REQUIREMENTS VoLTAGE . . . . . . . . . . . . 10, 117, 220, 24cV 50/60H2 CONSUMPTION .56V (rated), 156W (max.) DIMENSIONS . . . . . . . . . . . .400mm (15%o)W 120m m (4%) H 240mm (9%o) D WEICHT . q.6.3Kg (13.9 lbs) net 7.6K9 (16.8 !bs) packed * Design and speciflcation subiect to chang

7、e without notice for improvements. - Lr 2 RadioFans.CN 收音机爱 好者资料库 Gau-4400 2. BLOCK DIAGRAM AND VALUE OF EACH LEVEL EQUALTZER crRcuT F-24p Conditions of Level Measuring *Value of each level in block diagram was measured by the followings. 1. MASTER VOLUME . .Maximum 2. BASS, TREBLE, BALANCE volume .

8、 .Center 3. lnput . PHONO 2.5mV lkHz Sine Wave AUX 150mV lkHz Sine Wave (output impedance of 600O at an aud io oscillator) 3 r:,; ilc JrcI S0l (o-t): SELECTOR l. MIC S0l (od) 2. PHONO S0l (e,h) 3. TUNER sot (i-i) 4. AUx sot (r, t) ACCESSORY CIRCUIT tT-2-4ogl 2 I s02-b sor (m, n), TAPE MoNtroR I. SOU

9、RCE 2. PLAYBACK S0Z (o, b) LOUDNESS I. OUT 2. lN VOLUME CIRCUIT fF:Tn11 4. Output . . .14.5V(26W)BO Note: Each voltage value is for reference and measured by a VTVM. ln some recerders, the actual voltage value is in minor difference from the reference val ue. Output. .Each channel driven BO at l,000

10、kHz ACCESSORY CIRCUITTONE COTTROL CIRCUIT 7r-2ffi-l VRO5 TREBLE VR S03 (o, b), H IGH F I LTER I. OUT 2. lN S04 (o, b), LOW FILTER I. OUT 2. lN r_ u_i TOE EONTROL CIRCUIT aF-7trn S05 (o,e) POWER SPEAKERS I. POWER OFF 2.4 3. SPEAKER OFF 4.8 5. A+B S0: MODE I. STEREO 2. MONO v v V v AUX rREC trpE Lpr-n

11、v VRO6 TREBLE m IAIN i3) %w cR : 220o. tLW C.R. C I ko %w c.R. B 3.9ko 2WC.R. B 47oQ %W C.R. rooko(n)xz I D ooko(A)x2 (vorioble- D r ooko (MN) x2 I Resistor Z SUB54 Push Switch A, A A A A A A D D D D I I I I ( I ( ( ( ( ( ( ( ( 5 pe1mmk S-2. F-2402 Main l:rl sov E c 330pF 50V C.C. 47 1tF 50V E.C. 5p

12、F 50V C.C. 33 1tF 50V E.C. ,i:rii sov c c 0.0a7 pF 50V M.C. 3:) 5ov E c 47 1tt 80V E.C. 0.00a7 pF 500V C.C. l00ptE 80V E.C. 2200 pt 63V E.C. 0.01 ptF 500V C.C. 2W Ce. R. %w c.R. %w c.R. I W C.R. %w c.R. yzW C.R. I 0D-2 I r oD-2 L l oD-2 ( I oD-2 ,| I k O B Bios Current Volume I B,C.l A,B 2.5A Quick

13、Acting Fuse I B. I B Heot Sinker 5937080 5-3. F-2406 Selector Switch Conductor Side Circuit Board 5-5. F-24084 Accessory (Stock No. 7592200 Complete Conductor Side Circuit Boarb Circuit Board f-240S) 5-4. F-2407 Volume Circuit Board Conductor Side Parts List I I Parts No. Stock No.Description Ror, o

14、z 0107103 Sor 0l 3080 Cpos 0657 473 loko y4w c.R. Push Switch (Selector) 0.047 pF 50V C.C. Parts ListParts List Parts No. Stock No.Description Parts No. Stock No.DescriptionPosition I ,I Cor Coz Rot Roz VRor VRoz 0621561 50oF) 0621 s61 560prl 50V 0r07r53 r5k0) o l 07 t 53 I skol /nN 10il0r0, I 250ko

15、(B)x2) l 0r r or 0, I 250ko (B) x2 J Cor, oz 001 1 57 Cos, oa 0601227 Cos, oo 0601477 Rot, oz UA7223 Ro3, oa 01 071 04 Roz, 08 0107 47 4 Rop, ro 0107222 Soz(o,b) I 170340 Sos(o,b) I 170350 So+(o,b) 117 0340 sOV M.C. %w c.R. Lever Switch 0.01 spF l o.zzpr I o.o+t 1tF I zzt? = r,., ,lt,- r.s-,- . res;

16、-$ : = = = fi= -# * (#SSs8 8. $ *i.rdA * L . ;-i.S1 a g- I (,| 9 D I a c, s q N a lq, o lIN = A c, Y A E (1, ts lr , . tts _-t 1l lilr l(/,_t -1 tl le tsl +N =l -ffil81 I +l lBr 1_l :l +l l: orl l# cr -luoi lc) -l t: Al 9le1 -l lCoslooP I Hl_-l l9o 3 +Se t- fl|, I lw hl lllrrNl ullCeas g) lrooysot 4

17、*,*( Ig., -N- Ceu Sos-a NO *_u- ) o c P t, I G 7. PACKING LIST Parts No. Stock No. Description I 2 3 9027800 Stylofoom Pocking 9008151 Corton Cose 9116640 Vinyl Cover t, 8. ACCESSORY PARTS LIST Stock No.Description 0433670 2.5A Quick Acting Fuse 92083t 0 Operoting tnstructions 9228310 Operoting lnstruction Sheet / to v V, v . v SANSUI ELECTRIC CO., LTD. 14-1,2-chome, lzumi, Suginamiku, Tokyo 168, Japan TELEPHONE: (03) 323-111I /TELEX: 232-2076 SMO29 Printed in Jopon (N+ZSON4)