Panasonic-SAEH700CG-rec-sm 电路图 维修手册.pdf

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1、Table Of Contents COVER 1 Before Repair 2 Protection Circuitry 3 Accessories 4 Operation 5 Operation Checks and Component Replacement Procedures 6 Self-Diagnostic Mode 7 Schematic Diagram 7.1 Schematic Diagram Notes 7.2 Schematic Diagram 8 Printed Circuit Board Diagram 9 Wiring Connection Diagram 10

2、 Type Illustration of ICs, Transistors and Diodes 11 Block Diagram 12 Terminal Function of ICs 13 Replacement Parts List 14 Cabinet Parts Location 15 Packaging Service Manual TOP NEXT AD9906132C3 Tuner/Amplifier SA-EH700 Colour (S).Silver Type Area (GC).Asia, Latin America, Middle East and Africa. R

3、adioFans.CN 收音机爱 好者资料库 PV PV 1999 Matsushita Electronic Industrial Co.,Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. RadioFans.CN 收音机爱 好者资料库 1 Before Repair TOP PREVIOUS NEXT 1. Turn off the power supply. Using a 10, 10 W resistor, connect both ends of power

4、supply capacitors (C701, C703 and C702, C704) in order to discharge the voltage. 2. Before turning the power supply on, after completion of repair, slowly apply the primary voltage by using a power supply voltage controller to make sure that the consumed current at 50/60 Hz in NO SIGNAL mode should

5、be shown below. Power supply voltage AC 110 V AC 240 Consumed current 50 Hz 160-550 mA 80-270 mA TOP PREVIOUS NEXT RadioFans.CN 收音机爱 好者资料库 2 Protection Circuitry TOP PREVIOUS NEXT The protection circuitry may have operated if either of the following conditions is noticed: No sound is heard when the

6、power is switched ON. Sound stops during a performance. The functions of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are shorted, or if speaker systems with an impedance less than the indicated rated impedance of this unit are use

7、d. If this occurs, follow the procedure outlined bellow: 1. Switch OFF the power. 2. Determine the cause of the problem and correct it. 3. Switch ON the power once again. Note: When the protection circuitry functions, the unit will not operate unless the power is first switched OFF and ON again. TOP

8、 PREVIOUS NEXT 3 Accessories TOP PREVIOUS NEXT AC power supply cord (RJA0019-X).1 pc. AM loop antenna set (RSA0022-J).1 pc. FM indoor antenna (RSA0006).1 pc. Speaker cord s (REE0499).2 pcs. (REE0853).2 pcs. Power plug adaptor (SJP5213-2).1 pc. Remote control transmitter (RAK-EHA19WH).1 pc. Video con

9、nection cable (RJL1P019B15).1 pc. Batteries (UM-3, AA, R6/LR6).2 pcs. Note: These are available on sales route. TOP PREVIOUS NEXT 4 Operation TOP PREVIOUS NEXT TOP PREVIOUS NEXT 5 Operation Checks and Component Replacement Procedures TOP PREVIOUS NEXT TOP PREVIOUS NEXT 6 Self-Diagnostic Mode TOP PRE

10、VIOUS NEXT TOP PREVIOUS NEXT 7 Schematic Diagram TOP PREVIOUS NEXT 7.1 Schematic Diagram Notes 7.2 Schematic Diagram TOP PREVIOUS NEXT 7.1 Schematic Diagram Notes TOP PREVIOUS NEXT This schematic diagram may be modified at any time with the development of new technology Notes: S701: Voltage selector

11、 (VOLT ADJ) S901: Power Standby/on switch (/I) S902: ECO mode switch (ECO) S903: Clock/timer, demo switch (CLOCK/TIMER, -DEMO) S904: Play timer/Record timer switch (PLAY/REC) S905: FM mode select switch (FM AUTO/MONO) S906: Tuning mode select switch (TUNING MODE) S907: Set switch (SET) S908: Input s

12、ource select switch (INPUT SELECTOR) S910: Tuning/time adjust/key adjust down switch (TUNING, DOWN, b) S911: Tuning/time adjust/key adjust up switch (TUNING, UP,#) S912: Tuner/band select switch (TUNER/BAND) S913: Super woofer switch (S.WOOFER) S914, 915: KARAOKE and echo (S914:KARAOKE, S915:ECHO) s

13、witch (KARAOKE, ECHO) S916: Key control on/off switch (KEY CON) S917, 918: Mic effect (S917:LOUNGE, S918:CHORUS) switch (MIC EFFECT, LOUNGE, CHORUS) VR401: Microphone volume control VR (MIC VOL) VR901: Volume control VR (VOLUME) Indicated voltage values are the standard values for the unit measured

14、by the DC electronic circuit tester (high-impedance) with the chassis taken as standard. Therefore, there may exist some errors in the voltage values, depending on theinternal impedance of the DC circuit tester. No mark : FM ( ) : AM Important safety notice: Components identified by mark have specia

15、l characteristics important safety. Furthermore, special parts which have purposes of fire-retardant (resistors), high-quality sound (capacitors), low-noise (resistors), etc. are used. When replacing any of components, be sure to use only manufacturers specified parts shown in the parts list. Cautio

16、n! 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. Ground the soldering iron. Put a conductive mat on the work table. Do not touch the legs of IC or LSI with the fingers direct

17、ly. :Positive voltage line :Negative voltage line :AM signal line :AM OSC signal line :FM signal line :FM OSC signal line :Center Sp.drive signal line :Surround Sp.drive signal line :Source signal line :Mic signal line TOP PREVIOUS NEXT 7.2 Schematic Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT 8 Pri

18、nted Circuit Board Diagram TOP PREVIOUS NEXT This printed circuit board diagram may be modified at any time with the development of new technology. TOP PREVIOUS NEXT 9 Wiring Connection Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT 10 Type Illustration of ICs, Transistors and Diodes TOP PREVIOUS NEXT

19、TOP PREVIOUS NEXT 11 Block Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT 12 Terminal Function of ICs TOP PREVIOUS NEXT IC901 (LC8A524A5K01) : System Control/FL drive Pin No. Terminal Name I/ O Function 1 CHECK O Clock check signal output 2 LC72 DI O PLL data signal output for IC102 3 LC72 CE O Chip en

20、able signal output for IC102 4 LC72 DO/ST I IF count data/ stereo detect signal input for IC102 5 LC72 CK O Clock signal output for IC102 6 SW LV1 O LEVEL 1 signal output for IC502 7 SW LV2 O LEVEL 2 signal output for IC502 8 SW MUT O Muting signal output for IC502 9 SEL TUNER - Tuner select signal

21、output (Not used, open) 10 SEL/ TUNER O Tuner select signal output (L=Tuner) 11 AC IN I Power failure detect signal input 12 RESET I Reset signal input 13 X IN I Oscillator connected terminal (32.7 kHz) 14 X OUT O Oscillator connected terminal (32.7 kHz) 15 Vss - GND terminal 16 XC IN I Oscillator c

22、onnected terminal (6 MHz) 17 XC OUT O Oscillator connected terminal (6 MHz) 18 VDD1 I Power supply terminal 19 KEY TU I Operation key signal input (TUNER, TIMER, AMP. section) 20 KEY KARAOKE I Operation key signal input (KARAOKE section) 21 SH REQ I Request signal input for sound processor 22 NC (GN

23、D) - Not used, connected to GND 23 VR JOGB I Volume control signal input 24 VR JOGA I Volume control signal input 25 MIC DET I Microphone connecting detect signal input 26 HP SW I Headphones connecting detect signal input 27 RDS CLK I RDS clock signal input 28 RDS DATA I RDS data signal input 29 REM

24、OCON I Remote control signal input 30 | 41 12G-1G O Grid signal output 42 | 45 P33-P30 O Segment signal output 46 VDD3 I Power supply terminal 47 | 50 P29-P26 O Segment signal output 51 -VP I Power supply terminal (negative) 52 | 71 P25-P6 O Segment signal output 72 VDD4 I Power supply terminal 73 |

25、 77 P5-P1 O Segment signal output 78 REGIN0 I Area select signal input 79 REGIN1 I Area select signal input 80 STANDBY O LED (STAND BY) drive signal output 81 TIMER O LED (TIMER) drive signal output 82 S.W LED O LED (S.WOOFER) drive signal output 83 LOUNGE O LED (LOUNGE) drive signal output 84 CHORU

26、S O LED (CHORUS) drive signal output 85 MUTE O Muting signal output 86 POWER O Power control signal output 87 /ECO O ECO signal output 88 NC - Not used, open 89 VSS2 - GND terminal 90 VDD2 I Power supply terminal 91 | 93 NC - Not used, open 94 SH CS O Chip select signal output to Sound processor 95

27、SH DO O Serial communication signal to Sound processor (Data signal output) 96 SH DI I Serial communication signal to Sound processor (Data signal input) 97 SH CK I Serial communication signal to Sound processor (Clock signal input) 98 E DET I Unusual condition detect terminal(L:Unusual) 99 CR TIMER

28、 I/ O TIME CONSTANT terminal 100 SD I Station detector signal input for tuner circuit TOP PREVIOUS NEXT 13 Replacement Parts List TOP PREVIOUS NEXT Notes: Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have p

29、urposes of fire-retardant (resistors), high-quality sound (capacitors), low-noise (resistors), etc. are used. When replacing any of components, be sure to use only manufactures specified parts shown in the parts list. The mark in Remarks indicates language of instruction manual. : English, Chinese T

30、he marking (RTL) indicates that Retention Time is limited for this item. After the discontinuation of this assembly in production, the item will continue to be available for a specific period of time. The retention period of availabilityis dependent on the type of assembly, and in accordance with th

31、e laws governing part and product retention. After the end of this period, the assembly will no longer be available. All parts are supplied by MESA. Ref. No.Part No.Part Name Super woofer button and lamp (S.WOOFER) Tuning mode select button (TUNING MODE) ? Set button (SET) Tuning/time adjust/key adj

32、ust buttons (X, W TUNING, , fl ) A KARAOKE and echo buttons (KARAOKE, ECHO) B Microphone jacks (MIC, 1, 2) C Microphone volume control (MIC VOL) Remote control B T Buttons such as 1 function in the same way as the buttons on the main unit. T Buttons used for video CD operation are labeled in blue. R

33、ESUME and TIME ACCESS can also be used with audio CDs. j Sleep timer button (SLEEP) k Numeric buttons (19, 0, M) l EQ select button (EQ) m Cursor buttons (2, 1, 3, 4) n Speaker channel select button (CH SELECT) o Test button (TEST) p Video index search button (V-INDEX -, .) q VCR/AUX select button (

34、VCR/AUX) r Resume button (RESUME) s Tape reverse playback/CD pause button (2/;) t Muting button (MUTING) u CD skip/search, previous/next, tape fast forward/rewind buttons (PREV 4, NEXT 5) v Program button (PROGRAM) w Cancel button (CANCEL) x Disc select button (DISC) y Karaoke effect button (KARAOKE

35、 EFFECT) z AV effect button (AV EFFECT) Multi screen button (MULTI SCREEN) | CD, Video CD button (CD, VIDEO CD) CD/tape stop, PBC on/off button (7 PBC) CD play/select/tape forward playback button (1 SELECT) Time access button (TIME ACCESS) A B ?A= 1789:;23456 CB EQKARAOKE EFFECT H AV EFFECT SLEEP CH

36、 SELECT 3D AI PROGRAM 123 456 7890 j/-/- CANCEL DISC TAPE/ DECK 1/2 U? PRO LOGIC TUNER/ BAND CD VIDEO CD TIME ACCESS MULTI SCREEN RETURN /gSELECTRESUMEPBC MUTINGMN ?VOLUME? V-INDEX TEST VCR/AUX SIMULATED STSUPER SRND NEXTPREV v w x y ? 8 d z a e | N k m j 1 l n o p F PLAYF RECOriginal display - With

37、in 5 seconds: 2 Press SET. 3 1 Press TUNING (X or W) to set the present time on the display. The time display can be changed in one minute units by tap- ping the buttons, and quickly by holding down the buttons. 2 Press SET. The display will return to the previous display after about 3 seconds. To d

38、isplay the clock: Press CLOCK/TIMER, DEMO. The time is shown for about five seconds. The time is shown constantly when the unit and ECO mode are off. 1 2 3 A B A B 231 H/I CLOCK/TIMER DEMO SET SET ? TUNING fl ? 77777 Playing CDs Multi screen functions VIDEO CD 1.1 by remote control only Disc multi s

39、creen function This function divides the screen up into several parts so as to display the picture from each of the tracks. You can select the track you want from the various picture on the screen. Preparation: Make sure OSD is on. 1 (While playback is stopped) Press MULTI SCREEN. Track 1 will first

40、 be played back for a few seconds, then will be displayed as a still picture. The same will then happen for the following tracks. Up to 9 tracks will be displayed on the screen at a time. To display subsequent tracks: Press NEXT, 5 To display previous tracks: Press PREV, 4 To cancel the multi screen

41、 mode, press 7 PBC. 2 Select a track number with the numeric buttons. That track will start playing. The number of the selected track is displayed on the units display. For your reference: If you press 1 SELECT as a track is being displayed as in step 1, that track will start playing. Track multi sc

42、reen function A track is divided into 9 sections and those sections are shown on the multi screen. Playback can then be started from the section of your choice. 1 (During playback) Press MULTI SCREEN. The beginning five second segment of each section is played back, then the last frame of the segmen

43、t is displayed on the multi screen. To cancel the multi screen mode, press 7 PBC. 2 Press a numeric button to select the section. Playback begins from that section. For your reference: If you press 1 SELECT as a track is being displayed, playback begins from that section. Note The multi screen funct

44、ions do not work during program play. VIDEO CD 2.0 Multi screen functions are possible as described above by cancelling the menu play mode. 1 2 1 2 2 1 123 456 789 123 456 789 192021 MN SELECT PBC NEXTPREV 123 456 7890 j/-/- MULTI SCREEN MULTI SCREEN 123 456 7890 j/-/- VIDEO CD DISC VIDEO CD DISC Se

45、lected track number Selected track number TV screen To find a scene using the time (TIME ACCESS) A This function allows you to specify a time anywhere on the CD and begin play from that point. VIDEO CD 1.1AUDIO CD by remote control only 1 Press TIME ACCESS. When the CD is stopped: A Total playing ti

46、me appears on the display. When the CD is playing or paused: B Elapsed playing time appears on the display. 2 (within four seconds after the time appears on the display) Press the numeric buttons to enter the time of the desired part. To enter time: Press the numeric button corresponding to the desi

47、red time. Example: 22:40: 2240 00:25: 0025 Press TIME ACCESS and begin again if you make a mistake. Note The time to be entered should be a portion of the total playing time. If, for example, you are playing track 2, and you enter “0:25”, play does not begin from 25 seconds into track 2, but rather

48、it begins from 25 seconds into track 1. 3 Press 1 SELECT. Play starts from the selected time. Note Time access does not work during program play. VIDEO CD 2.0 This function works if menu play is canceled. To find a particular scene using a video index number B VIDEO CD 1.1 by remote control only A particular scene in a track you want to watch can be located by selecting a video index number. Check the users manual or other material for information