Компонентная система
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Инструкция по эксплуатации
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Instrukcja obslugi
Model No
SC-EH790
SC-EH590
Teclinìcs’
Ha рисунках показана модель SC-EH790.
Na obràzku je model SC-EH790,
Na ilustracji pokazano zestaw SC-EH790,
DIGITAL AUDIO
EP
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Nintejsza instrukcja zosta+a opracowana na
podstawie orygìnalnej publikacji firmy
MATSUSHITA ELECTRIC INDUSTRIAL
CO., LTD.
RQT6867-R
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- Technics SC-EH790
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-
17.03.2012,
Григорий:
cхема technics eh790
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Contents
-
Table of Contents
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Bookmarks
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ORDER NO.AD0303004C2
Tuner/Amplifier
SA-EH790E / SA-EH790EB / SA-EH790EG / SA-EH790EP
Colour
(S)……………….Silver Type
System: SC-EH790
Because of unique interconnecting cables, when a
compact requires service, send or bring in the entire
system.
SPECIFICATIONS
Specification
1
Related Manuals for Technics SA-EH790E
Summary of Contents for Technics SA-EH790E
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Page 1
ORDER NO.AD0303004C2 Tuner/Amplifier SA-EH790E / SA-EH790EB / SA-EH790EG / SA-EH790EP Colour (S)….Silver Type System: SC-EH790 Because of unique interconnecting cables, when a compact requires service, send or bring in the entire system. SPECIFICATIONS Specification… -
Page 2
Amplifier section Power output (L/R both channel driven) Stereo Mode 1 kHz THD 1%/6 (High) 2×25 W 100 Hz THD 1%/8 (Low) 2×45 W RMS 1 kHz THD 10%/6 (High) 2×35 W 100 Hz THD 10%/8 (Low) 2×65 W PRO LOGIC mode FRONT 1 kHz THD 1%/6 (High) -
Page 3
Sleep (120 min, 30 min intervals) Setting intervals (Play/Rec) 1 minute—23 hours 59 minutes (1 min intervals) General Power supply (For (E) ,(EG),(EP)areas) AC 230V 50Hz (For (EB) area) AC 230—240V 50Hz Power consumption 190 W Standby 0.5 W Dimensions (W×H×D) 293×118.5×345 mm Mass 5.2 kg… -
Page 4
Power supply AC 230 V AC 240 V voltage Consumed current 100 — 350 mA 50 Hz 2. Protection Circuitry The protection circuitry may have operated if either of the following conditions is noticed: — No sound is heard when the power is switched ON. — Sound stops during a performance. -
Page 5
— Remote control (EUR7702270)….1 pc. — Remote control batteries (R6/LR6,”AA”,UM-3)….1 pc. Note: These are available on sales route. — FM indoor antenna (RSA0007)….1 pc. — AM loop antenna set (RSA0022-L)….1 pc. — Speaker leads… -
Page 6
(REE1234-1)….2 pc. (Red/Black) (REE1233-1)….2 pc. (Gray/Blue) — Antenna plug adaptor for (EB) area (SJP9009)….1 pc. 4. Caution for AC Mains Lead… -
Page 7
5. Location of Controls 6. Operation Checks and Component Replacement / Procedures — This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. — For reassembly after operation checks or replacement, reverse the respective procedures. -
Page 8
described only when required. 6.1. Checking for the AC IN P.C.B. — Check the AC IN P.C.B. as shown below. 6.2. Checking for the operation P.C.B. — Follow the (Step 1) — (Step 3) of item 6.1. -
Page 9
— Check the operation P.C.B. as shown below. 6.3. Checking for the main P.C.B. — Follow the (Step 1) — (Step 3) of item 6.1. -
Page 11
— Check the main P.C.B. as shown below. 6.4. Replacement for the regulator transistor — Follow the (Step 1) — (Step 3) of item 6.1. -
Page 12
6.5. Replacement for the power IC — Follow the (Step 1) — (Step 3) of item 6.1. — Follow the (Step 1) — (Step 6) of item 6.2. — Follow the (Step 1) — (Step 10) of item 6.3. 7. To Supply Power Source This unit is designed to operate on power supplied from system connected. -
Page 13
When the unit has to test and service alone, use the following method to supply power source. 1. Short the section between W902A Pin 3 and C740 (-) (GND). (Refer Fig. 7-2. 2. Connect this unit to an AC power supply cord. / (This unit come to stand-by mode.) 3. -
Page 14
automatically displays a code indicating the nature of the malfunction. Use this self-diagnostic function when servicing the unit. 8.1. To display the malfunction code U70 CD: / U70 DECK: Automatically displays on the tuner/amplifier when a malfunction occurs. Refer to Fig. -
Page 15
— To re-display the code, switch the power on. F61 will be re- displayed, and then after 3 seconds the clock will be displayed and the power will automatically switch off. 8.3. Display contents 8.3.1. U70 CD/U70 DECK / (displayed automatically) — Problem or condition A bus-line communications error has occurred as a result of the flat cables being inserted incorrectly, thus preventing the system… -
Page 16
SL-EH790: IC451 (C2BBGF000433) RS-DV290: IC701 (M38503M2406F) Check these ICs and replace. 8.3.2. F61 — Problem or condition When the power switch is switched on, it automatically switches back off, making it impossible to switch power on. — Correction procedure Faulty Tuner/Amplifier (SA-EH790) output IC (IC601). (When a DC voltage is applied to speaker terminals.) 9. -
Page 17
S909: 6 ch discrete input switch / (6 CH DISCRETE INIPUT) S910: Tuning down switch (TUNING, S911: Tuning up switch (TUNING, S912: Tuner/band switch (TUNER/BAND) S913: Digital super woofer switch / (DIGITAL S.WOOFER) S914: RDS display mode PS switch / (RDS DISP MODE-PS) S915: RDS display mode PTY switch / (RDS DISP MODE-PTY) VR901:… -
Page 18
parts list. — Voltage and signal line : Positive voltage line : Negative voltage line : Audio signal line : Tuner signal line Caution! IC and LSI are sensitive to static electricity. Secondary trouble can be prevented by taking care during repair. Cover the parts boxes made of plastics with aluminum foil. -
Page 19
Terminal Function Name CHECK Clock check signal input 2 LC72 DO O PLL data signal output for tuner unit (Z120) 3 LC72 CE O Chip enable signal output for tuner unit (Z120) 4 LC72 DI/ IF count data/stereo detect signal input from tuner unit (Z120) 5 LC72 CK O Clock signal output for tuner… -
Page 20
Terminal Function Name Grid signal output Segment signal output Power supply terminal Segment signal output Power supply terminal (Negative) Segment signal output Power supply terminal Segment signal output 79 REGIN0 Not used, connected to GND 80 REGIN1 81 STANDBY O LED (STANDBY) drive signal output TIMER O LED (TIMER) drive signal output… -
Page 21
Terminal Function Name 93 MUTE3 O Muting signal output SH CS I/O Chip select signal input/output for Sound Processor SH DO O Serial communication signal to Sound Processor (Data signal output) SH DI Serial communication signal to Sound Processor (Data signal input) SH CK Serial communication signal to… -
Page 22
GASKET RGW0386-S KNOB,VOLUME RHN90001 RKA0106-N FOOT RING RKF0606AC-K1 BACK COVER RKW0581-1V FL WINDOW RMN0427A CABLE HOLDER RYP1167-S FRONT PANEL ASS’Y 12-1 RGB0025-A TECHNICS BADGE SHG1654 RUBBER XTB3+10JFZ SCREW XTB3+8JFZ SCREW XTW3+15T SCREW XTBS3+8JFZ1 SCREW RLBT4001-N FERRITE CORE J0KD00000028 RMN0582 HOLDER… -
Page 23
Ref. No. Part No. Part Name & Description Remarks RQT6867-R OPERATING INSTRUCTIONS (EP) Russian Polish Czech RSA0007 FM INDOOR ANTENNA N1EAYY000002 RSA0022-L AM LOOP ANTENNA C151 ECA1CAK100XB 16V 10U C152 ECBT1H331KB3 50V 330P C153 ECBT1H102KB3 50V 1000P C154 ECBT1H561KB3 50V 560P C155 ECBT1H102KB3 50V 1000P… -
Page 24
Ref. No. Part No. Part Name & Description Remarks C710 ECBT1H473KB5 50V 0.047U F1D1H473A012 C714 ECBT1H102KB3 50V 1000P C715 ECA1EAM472XE 25V 4700U C717 ECA1CAK330XB 16V 33U C718 ECA1EAM101XB 25V 100U C719,20 ECBT1H473KB5 50V 0.047U F1D1H473A012 C721 RCE1AKA101BG 10V 100U F2A1A1010020 C722 ECA1EAM101XB 25V 100U… -
Page 25
Ref. No. Part No. Part Name & Description Remarks CP602 RJT057W008-1 CONNECTOR(8P) K1KA08A00187 D151 MA4051M DIODE MAZ40510M D201 MAZ40560MF DIODE D306 SELS5223C B3AAA0000486 D500 MA165TA5 DIODE MA2C16500E D551,52 MA165TA5 DIODE MA2C16500E D553 MA700 DIODE MA2C700 D554 MA165TA5 DIODE MA2C16500E D555 MA4100M DIODE MAZ41000M… -
Page 26
IC201 C0JBAR000292… -
Page 27
Ref. No. Part No. Part Name & Description Remarks IC601 RSN311W64B IC901 C2BBFD000404 JK551 K1KA02A00008 CONNECTOR(2P) JK601,02 K4BC04B00028 JACK,SPEAKERS JK603 K2HA103B0015 JACK,SPEAKERS JK701 K2AA2B000002 JACK,AC INLET JK903 RJJ37TN02-C JACK,HEADPHONES K2HC103A0009 L151,52 ELEXT101KA9 COIL L153 G0C1R0JA0019 COIL L601-06 RLQYR73MW1-0 COIL G0ZZ00001606 L701 RLQZ371 COIL… -
Page 28
Q711 2SB1548PQAU TRANSISTOR 2SB15480J1AU… -
Page 29
Ref. No. Part No. Part Name & Description Remarks Q723 2SC3940AQSTA TRANSISTOR 2SC3940ARA Q725 2SC5398RSTA TRANSISTOR B1AACF000059 Q726 2SC3940AQSTA TRANSISTOR 2SC3940ARA Q791 2SD2144S TRANSISTOR Q901 UN4212TA TRANSISTOR UNR421200A Q902 UN411FTA TRANSISTOR UNR411F00A R151,52 ERDS2FJ102 1/4W 1K R153,54 ERDS2FJ104 1/4W 100K R155 ERDS2FJ121 1/4W 120… -
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Ref. No. Part No. Part Name & Description Remarks R645,46 ERDS2FJ100 1/4W 10 R647 ERDS2FJ391 1/4W 390 R648 ERD2FCG121 1/4W 120 R649-52 ERDS1FJ100 1/2W 10 R683-86 ERDS2FJ102 1/4W 1K R687,88 ERDS2FJ152 1/4W 1.5K R691 ERDS1FJ151 1/2W 150 R692,93 ERDS2FJ102 1/4W 1K R694 ERDS2FJ223 1/4W 22K… -
Page 31
Ref. No. Part No. Part Name & Description Remarks R914 ERDS2FJ102 1/4W 1K R915 ERDS2FJ122 1/4W 1.2K R916 ERDS2FJ152 1/4W 1.5K R918 ERDS2FJ103 1/4W 10K R919 ERDS2FJ153 1/4W 15K R921,22 ERDS2FJ103 1/4W 10K R924,25 ERDS2FJ102 1/4W 1K R926 ERDS2FJ222 1/4W 2.2K R928 ERDS2FJ473 1/4W 47K… -
Page 32
Ref. No. Part No. Part Name & Description Remarks X901 EF0EC6004T4 OSCILLATOR EFOEC6004T4 X902 RSXD32K7S02 OSCILLATOR H0A327200027 Z120 RAN0005EM-2 TUNER UNIT Z701 ENC471D5A J0LG00000008 Z901 B3RAD0000028 REMOTE SENSOR 17. Cabinet Parts Location… -
Page 33
18. Packaging 19. Schematic Diagram for printing with letter size K0304YH/HM… -
Page 34
SCHEMATIC DIAGRAM-2 FL CIRCUIT(FW602B) MAIN CIRCUIT :POSITIVE VOLTAGE LINE :NEGATIVE VOLTAGE LINE :CD PLAYBACK SIGNAL LINE on SCHEMATIC DIAGRAM-1/11,12-D E101 R131 R132 FW602A R257 5.6K R103 R211 JK102 2.2K C B A -10.4V R104 VCR(EXT) R105 JK102 IC201 NJU7313AMT2 SIGNAL SELECTOR 5.1V DATA IC401… -
Page 35
SCHEMATIC DIAGRAM-3 MAIN CIRCUIT :POSITIVE VOLTAGE LINE :CD PLAYBACK SIGNAL LINE R861 100K 5.1V R890 L806 R812 R811 4.7K 5.1V R814 L801 100K L814 C827 R815 50V4.7 R856 C828 R816 50V4.7 C829 R817 CK01 50V4.7 TST0 CK00 TST1 C830 R818 R858 TST2 TP12… -
Page 36
SCHEMATIC DIAGRAM-4 MAIN CIRCUIT :POSITIVE VOLTAGE LINE :NEGATIVE VOLTAGE LINE :CD PLAYBACK SIGNAL LINE 5.1V D762 R761 Q761 RL1N4003N02 C301 R313 C303 C307 L301 7.2V 10.2V 50V4.7 3.9K 50V4.7 Q764 Q766 2SB621ARSTA R765 R764 2SA1309ATA 7.8V C305 R315 REGULATOR REGULATOR 100P 270K 5.1V… -
Page 37
SCHEMATIC DIAGRAM-5 :POSITIVE VOLTAGE LINE :CD PLAYBACK SIGNAL LINE MAIN CIRCUIT :NEGATIVE VOLTAGE LINE D.GND +10V A.GND R763 E201 0.33 CN202 SYNC CD REQ CT.GND +B(10V) D.GND SCLK DATA DECK REQ R236 V.GND To CD CHANGER(SL-EH790) & TAPE Rch IN CASSETTE DECK(RS-DV290) R235 TAPE Lch IN… -
Page 38
SCHEMATIC DIAGRAM-1 NOTE: The number which noted at the connectors on the schematic diagram as «SCHEMATIC DIAGRAM-1» or «SCHEMATIC DIAGRAM-2» FL CIRCUIT indicates the schematic diagram serial number located on the left corner in the schematic diagram. FL601(A2BD00000041) FL DISPLAY 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47… -
Page 39
:POSITIVE VOLTAGE LINE :NEGATIVE VOLTAGE LINE R668 2.2K D607 MA165TA FW601B 2.7V 1.2V CD REQ 0.4V 0.5V R612 Q602 Q603 S CLK S DATA DECK REQ MAIN Q604 R658 0.5V SYNC CIRCUIT(FW601A) 4.7K on SCHEMATIC Q602-604 DIAGRAM-5/40-A,B 2SC3311ATA SA DATA INTERFACE SA CLK CS/ REQ… -
Page 40
SCHEMATIC DIAGRAM-2 MAIN CIRCUIT :POSITIVE VOLTAGE LINE :NEGATIVE VOLTAGE LINE :CD PLAYBACK SIGNAL LINE E101 R131 R132 R257 5.6K R103 R211 JK102 2.2K -10.4V R104 VCR(EXT) R105 JK102 IC201 NJU7313AMT2 SIGNAL SELECTOR DATA 9.4V R106 R113 JK101 R256 4.7K AUX (DVD) R207 R209 R114… -
Page 41
FL CIRCUIT(FW602B) GNAL LINE on SCHEMATIC DIAGRAM-1/11,12-D FW602A C B A 5.1V IC401 C2BBFD000246 SYSTEM CONTROL L401 5.1V 5.1V VREF AVss R414 NJ ST R415 ECK/ NJCK R411 EDA/ NJDT EXP26 R410 4.6V R409 SENSE R417 4.8V DACK R408 RST2 R407 R406 RST1… -
Page 42
SCHEMATIC DIAGRAM-3 MAIN CIRCUIT :POSITIVE VOLTAGE LINE :CD PLAYBACK SIGNAL LINE 5.1V R812 R811 4.7K R814 L801 100K C827 R815 50V4.7 C828 R816 50V4.7 C829 R817 50V4.7 C830 R818 50V4.7 2.5V 2.5V C811 LIN4 ELRI/ O 0.022 C831 R819 2.5V LIN3 SYNC 50V4.7… -
Page 43
R861 100K R890 L806 5.1V L814 R856 CK01 TST0 CK00 TST1 R858 TST2 TP12 TST3 TP11 C864 5.1V TP10 6.3V47 C862 2.5V VRM1 470P R859 2.5V IC802 M IN 2.5V C2HBZC000008 M OUT C863 6.3V47 4.3V DIGITAL SIGNAL VRM2 PROCESSOR R860 GNDM C861… -
Page 44
SCHEMATIC DIAGRAM-4 MAIN CIRCUIT :POSITIVE VOLTAGE LINE :NEGATIVE VOLTAGE LINE :CD PLAYBACK SIGNAL LINE C301 R313 C303 C307 L301 50V4.7 3.9K 50V4.7 C305 R315 100P 270K R305 R307 0.6V 0.6V Q301 Q303 -10.4V R311 IC301 Q301,302 Q303,304 M5218AP 2SD2144STA 2SD2144STA BUFFER AMP MUTING ATTENUATOR… -
Page 45
5.1V D762 R761 Q761 RL1N4003N02 7.2V 10.2V Q764 Q766 2SB621ARSTA R765 R764 2SA1309ATA 7.8V REGULATOR REGULATOR 5.1V 5.1V D761 Q765,767 MA4082LTA R762 Q762 2SC3311ATA 5.4V 5.4V C765 C767 7.2V 10.2V STABILIZER 0.01 0.01 Q761,762 R773 R767 C773 5.4V 5.4V 7.8V 2SD2137PQTA 10V220 REGULATOR… -
Page 46
SCHEMATIC DIAGRAM-5 :POSITIVE VOLTAGE LINE :CD PLAYBACK SIGNAL LINE MAIN CIRCUIT :NEGATIVE VOLTAGE LINE D.GND +10V A.GND R763 E201 0.33 CN202 SYNC CD REQ CT.GND +B(10V) D.GND SCLK DATA DECK REQ R236 V.GND To CD CHANGER(SL-EH790) & TAPE Rch IN CASSETTE DECK(RS-DV290) R235 TAPE Lch IN… -
Page 47
790) & S-DV290) SA-EH790) 1/11,12-G… -
Page 48
M5218AP 2SD2137PQTA BU4053BCFE2 16PIN C2BBGF000434 100PIN M62457AFPE1 16PIN C2HBZC000010 80PIN NJU7313AMT2 30PIN C2HBZC000008 100PIN . . . C2BBFD000246 42PIN … . NJM4558MTE1 8PIN .. -
Page 49
SUBWOOFER DVD 6ch To CD CHANGER& To TUNER/ (EXT) (DVD) INPUT CASSETTE DECK AMPLIFIER MAIN P.C.B. FW602A FW601A 1 ..8 1 … 13 1 ..8 1 . -
Page 51
CN202 SYNC NJU7313AMT2 IC201 CD REQ SIGNAL SELECTOR CT.GND (29) +B(10V) (28) D.GND Q602 SCLK INTERFACE Q603, (27) DATA INTERFACE (25) DECK (26) NJM4558MTE1 (DVD) IC202 To CD CHANGER V.GND & CASSETTE DECK BU4053BCFE2 (24) (22) BUFFER BLOCK DIAGRAM IC203 TAPE Rch IN SIGNAL SELECTOR (23) -
Page 52
C2HBZC000010 IC801 C2HBZC000008 DIGITAL SIGNAL IC802 PROCESSOR DIGITAL SIGNAL PROCESSOR DVD 6ch 79 78 INPUT FRONT LIN4 (69) (RIN4) 82~85 TST0~3 GNDR LIN3 SELF MICOM (70) MICU I/F AUDIO SERIAL INTERFACE D-IN/OUT TIMING GENERATOR (RIN3) BOOT WOOFER LIN2 VRM1 (71) (RIN2) DELAY RAM VDA12… -
Page 53
CN201 TU LIC TUNER Lch/C R ch TUNER Rch M5218APC IC301 A.GND BUFFER Lch OUT Q301 Q305 (Q302) R ch Rch OUT Q303 MUT F MUTING MUTING NJM4558MTE1 (Q304) CONT. IC303 +B(10V) SUR L1 BUFFER SUR L NOTES : CD PLAYBACK SIGNAL LINE ) indicates pin No. -
Page 54
Note: This printed circuit board diagram may be modified at any time with the development of new technology. FL P.C.B. MAIN P.C.B. E101 DVD 6ch INPUT JK104 FW602A FW602B R115 R616 R117 S601 FRONT D604 R118 R668 L814 R827 DISPLAY R116 MODE D603… -
Page 55
SCHEMATIC DIAGRAM-1 NOTE: The number which noted at the connectors on the schematic diagram as «SCHEMATIC DIAGRAM-1» or «SCHEMATIC DIAGRAM-2» FL CIRCUIT :POSITIVE VOLTAGE LINE :NEGATIVE VOLTAGE LINE indicates the schematic diagram serial number located on the left corner in the schematic diagram. R668 2.2K FL601(A2BD00000041)
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Инструкция для Technics SC-EH790
Категория: Музыкальные центры
Производитель: Technics
Модель: SC-EH790
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