Samsung MAX-870 Service Manual Download

Page: 27 / 92

Front PCB

-com VDD(5V)

normal?

UIC1 pin no. 18,46,90

Check the Main PCB
RIC2(MC7805),FJ1
Check the Front PCB
UD9(1N4002), CN1-1

Main PCB RIC2(MC7805) IN: 12V

Input voltage normal?

Yes

Check the Main PCB;
RIC5(MC7812),PBD2
RR11 10

Ω

(1/2W)

Check the Power PCB;
Fuse P/T, PW1

Yes

Front PCB

Does UX1(6MHz)

oscillate ?

FRONT PCB PWR-SENS

voltage normal ?

(pin no. 11 ; 5V)

Check the Main PCB
RD4,RR19,RC13,RZD3
RC12,RR22,RR20

Yes

Front PCB

When the power is

ON 'H' displays

at pin no. 3 ?(5V)

Yes

Check the Main PCB

RQ7(C1008Y),RR9(22K)
RQ6(B1566), RR8(680

Ω

)

Replace

-com.

Yes

Samsung Electronics

6-1

6. Troubleshooting

6-1 Amplifier

6-1-1 Power Malfunction

Summary of Contents for MAX-870

Page 1: ... COMPONENT CONTENTS 1 Precautions 2 Specifications 3 Disassembly and Reassembly 4 Alignment and Adjustments 5 Special Circuit Descriptions 6 Troubleshooting 7 Exploded Views and Parts List 8 Electrical Parts List 9 Block Diagrams 10 PCB Diagrams 11 Wiring Diagram 12 Schematic Diagrams ...

Page 2: ...ELECTRONICS Samsung Electronics Co Ltd Jan 1998 Printed in Korea Code no AH68 20177A ...

Page 3: ...rrent for Appliances and Underwriters Laboratories UL Publication UL1410 59 7 With the unit completely reassembled plug the AC line cord directly into a 120V AC outlet With the unit s AC switch first in the ON position and then OFF measure the current between a known earth ground metal water pipe etc and all exposed metal parts Examples Handle brackets metal cabinets screwheads and control shafts ...

Page 4: ...nplug the unit s AC power cord from the AC power source before attempting to a Remove or reinstall any component or assembly b Disconnect an electrical plug or connector c Connect a test component in parallel with an electrolytic capacitor 3 Some components are raised above the printed circuit board for safety An insulation tube or tape is sometimes used The internal wiring may be clamped to preve...

Page 5: ...ou are ready to install it Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam aluminum foil or other conductive materials 8 Immediately before removing the protective material from the leads of a replacement ESD touch the protective material to the chassis or circuit assembly into which the device will be installed 9 Minimize body motions when h...

Page 6: ...tical Pickup Follow this procedure 2 Place a conductive sheet on the work bench i e the black sheet used for wrapping repair parts Note The surface of the work bench should be covered by a copper ground plane which is grounded 3 The repair technician must wear a wrist strap which is grounded to the copper sheet 4 To remove the Optical Pickup block Place the set on the conductive sheet and momentar...

Page 7: ...F rejection ratio Total harmonic distortion Frequency range WOW FLUTTER Erasing effect Signal to noise ratio Total harmonic distortion Frequency response Signal to noise ratio Channel separation Total harmonic distortion Audio Output 125Hz 12 5KHz 5dB 0 15 60 dB 40 dB 2 5 20Hz 20KHz 1dB 90 dB 1kHz 75 dB 1kHz 0 1 100Hz 0 05 1kHz 0 2 10kHz 1V 1kHz 0dB Frequency range Usable sensitivity Signal to noi...

Page 8: ...Remote Control ...

Page 9: ...ve 2 Remove 7 screws holding the Cabinet Top Lift the back of the Cabinet Top and shade it to the rear to remove If power is not connected Remove the Cabinet Top and Turn the Gear the clockwise using the hand as shown in figure 3 1 1 Open the Door CD and pull the Tray in the direction of arrow 2 TRAY 1 Figure 3 1 Samsung Electronics 3 1 Figure 3 1 1 ...

Page 10: ...Figure 3 2 3 2 Samsung Electronics 3 2 CD Mecha Door CD Disassembly and Reassembly 1 Remove 4 screws 2 Lift the back of the CD Mecha to remove ...

Page 11: ...ng the hook of Cabinet Bottom 3 Remove 2 screws and slide the Main PCB to the rear to remove 1 Remove 2 screws 2 Slide it to the front by releasing two hooks on the bottom of Cabinet Front to remove Figure 3 3 Figure 3 4 3 4 Cabinet Front and Cabinet Bottom Samsung Electronics 3 3 Disassembly and Reassembly ...

Page 12: ...msung Electronics Disassembly and Reassembly 3 5 CD Mecha 13 8 2 7 6 5 4 9 3 1 10 17 16 12 11 20 15 21 14 19 CD SUB PCB TRAY DISC ASS Y TRAY STOPPER CD MAIN PCB HOOK BASE MAIN 18 Refer to the next page for timming point ...

Page 13: ...e Base Main by turning it 2 Push the Slider Cam towards right then lift it up to remove 3 Remove the Gear Tray from the Base Main by releasing the fixed hook 4 Remove the Gear Converter from the Base Main by releasing the fixed hook 5 Remove the Gear Cam from the Base Main by releasing the fixed hook 6 Remove the Belt from the Pulley Motor AssÕy 7 the Gear Pulley 7 Remove the Gear Pulley from the ...

Page 14: ...stall in reverse order Align the Gear Cam with the Gear Tray as shown ing Figure 3 6 then mount the Tray Disc When assembling the Tray Disc take extreme care not to engage with Gear Synchro Gear Cam Gear Cam Gear Cam Gear Cam Timming Point Gear Cam Gear Synchro Gear Disc Insert ...

Page 15: ... 3 Lift the Center ring 4 Remove the Spring T Table 5 Remove the Turn Table M 6 Remove 2 screws and then remove the Spindle Motor 7 Remove the Cover Gear by pushing the hook 8 Remove the Gear c by pushing the hook 9 Lift the Gear b 10 Remove the Gear a 1 11 Remove 2 screws 2 and the then remove the Feed Motor 3 12 Remove the Chassis Deck M 4 Disassembly and Reassembly 3 4 5 6 12 2 1 8 9 10 11 13 1...

Page 16: ...b smeared alcohol 3 Lift the Center Knob 4 Remove the Center ring 5 Remove the Spring T Table 6 Remove the Turn Table M 7 Remove 2 screws and then remove the Spindle Motor 8 Remove the Cover Gear by pushing the hook 9 Remove the Gear c by pushing the hook 10 Lift the Gear b 1 11 Remove the Gear a 2 12 Remove 2 screws 3 and then remove the Feed Motor 4 13 Remove the Chassis Deck M 5 4 6 7 13 2 1 9 ...

Page 17: ... Adjust IVR1 so that TUNED of FLT is lighted Figure 4 2 Figure4 2 FM Auto Search Level Adjustment Adjust FM S S G level to 23dB Figure4 1 IF CENTER and THD Adjustment SSG FREQ Adjustment point TSR2 98 MHz BEACON SENSITIVITY SEMI VR 5KΩ FM S S G GND 23 dB FM S S G Output GND Speaker Terminal FM Antenna Terminal Distortion Meter Input SET Input output Oscilloscope FM IN FM Antenna SET 5 kΩ TSR1 AM T...

Page 18: ...tput andsamephase bothchannels After adjustment secureitwith REGION LOCK 150mV L CH TurnJSR1L totherightand left R CH TurnJSR1Rto therightandleft Seethe diagramfor adjustment locations Remark Standard To Adjust Pre Setup Item Step Pre Setup Condition Sameas above AfterputtingMTT 114NAintoDeck1 1 PressFWDPLAY button 2 PressREVPLAY button PLAYMTT 150 onDeck1 PlayBack out Level AZIMUTH 1 2 TP1OUT VTV...

Page 19: ... 6 mV Connect to TP2 as in Figure4 6 and read VTVM L CH JSR3L to the right and left R CH JSR3R to the right and left L CH JSR4L and R CH JSR4R to the right and left To Adjust Standard Remark Pre Setup Item Step Pre Setup Condition Connect to TP3 as in Figure 4 6 and read the VTVM Insert MTT 5512 into Deck2 then press REC button Insert MTT 5512 into Deck2 then press REC button BIAS Electric current...

Page 20: ...mp and they are added to RF summing Amp The photo diode A B C D signal which is I V changed is outputted by RFO pin74 At this pin the eye pattern can be checked The output of the focus error amp is the difference between RF I V AMP 1 output Va and RF I V AMP 2 output Vb just is the Photo Diode A C B D signal which is I V changed The focus error bias voltage applied to the of focus error amp can be...

Page 21: ...ying the gain of E I V AMP and the tracking gain Pin TE1 can be adjusted automatically by micom program Extracting the DC part of RFI and RFO and comparing with the basic DC level if RF Level is more than basic level the FOK is output The focus OK circuit generates a timing window of focus on to monitor the focus search status of focus serve 79 68 67 F E EI TGFI BAL 4 0 GAIN 3 0 from Digital TGL T...

Page 22: ...al between track on disc ÒHÓ when the defect beyond 1 4ms is detected The time constant for the mirror hold must be sufficiently large than of the traverse signal The EFM comparator converts a RF signal into a binary signal As the asymmertry due to variations in disc manufacturing can not be eilminated by thr AC coupling alone the reference voltage of EFM comparator is controlled utilizing the fac...

Page 23: ... capacitor coupling and shifting the level both signals are compared to generate the mirror defect detection signal As the laser diode has large negative temperature characteristic in its optical output when driven with a constant current on laser diode Therefore the output on processing monitor photo diode must be a controlled current for getting regularly output power thus the APC Auto Power Con...

Page 24: ...eference voltage RFO level is kept stable in 1Vp p and input to EFM Slice The adjustment of audio output gain and the integration of possible de emphasis output are executed by the low pass filter If the control by MUTE signal from micom exist and when input signal absent two channel of right and left is builted in The Center Voltage is generated by using resistor dividing voltage 75 78 76 IRF CAG...

Page 25: ...op During detection of defect the tracking error signal is output through the tracking servo loop after through the low pass filter formed by connecting a capacitor 0 1µF and a built in 470K resistor to the TDFCT pin pin57 in case of tracking phase compensation The value of tracking gain up down can be controlled by TGU and TG2 pin The peak frequency of tracking loop phase compensation the dynamic...

Page 26: ...nthening the filter further The characteristics of high frequency phase compensation in focus tracking servo and the characteristics of cut off frequecny in CLV low pass filter are test by FSET pin The moving of pick up is controlled by tracking servo output through low pass filter The sled kick voltage is output for track jump operation 43 42 44 TM6 TM2 SL SL SLO PS 4 3 0 X1 0 0 X2 1 1 X3 0 1 X4 ...

Page 27: ...1 10Ω 1 2W Check the Power PCB Fuse P T PW1 Yes No No Front PCB Does UX1 6MHz oscillate FRONT PCB PWR SENS voltage normal pin no 11 5V Check the Main PCB RD4 RR19 RC13 RZD3 RC12 RR22 RR20 Yes Front PCB When the power is ON H displays at pin no 3 5V Yes Check the Main PCB RQ7 C1008Y RR9 22K RQ6 B1566 RR8 680Ω Replace µ com Yes No No No Samsung Electronics 6 1 6 Troubleshooting 6 1 Amplifier 6 1 1 P...

Page 28: ... Power source BPD1 RC7 RC8 RWA1 Check the Power PCB Fuse P T PW1 Yes Check the Main PCB AIC1 FIC2 FIC1 No No Yes Check the Main PCB AQ8L 8R 1L 1R No Headphone Jack short Check Headphone jack soldering condition Yes No UIC1 µ COM pin 5 Check the Front PCB UIC1 µ COM Yes No Check the H Base B 6 2 Samsung Electronics Troubleshooting ...

Page 29: ...3 No Check the Main PCB TIC2 LC72131 pin3 4 5 6 Check the Front PCB UIC1 µ com No Yes TIC2 LC72131 VT Level Changeable pin 20 Check the Main PCB TIC2 LC72131 Oscillator TX2 7 2MHz No Yes TIC2 LA1836 If input normal pin 1 5 Check the Main PCB TFE1 Front END Pack TL1 MW LW coil No Yes Check the Main PCB FIC2 TDA7439 Function IC Samsung Electronics 6 3 Troubleshooting ...

Page 30: ... 4 39 41 Input signal normal No Check the Tape PCB DCW8 DCW9 JIC1 JIC2 Check the Main PCB FIC2 TDA7439 Function IC Yes Tape PCB JIC3 HA12203 pin8 35 Output signal normal No Check the Tape PCB JIC3 JIC5 Yes Yes Check the Tape PCB JZD1 JZD2 FZD2 6 4 Samsung Electronics Troubleshooting ...

Page 31: ...es Is Roulette Control ok No Check Roulette Control Sensor Is Focus Search ok No Check oscillation of NXF100 16 9344MHZ Does Laser function during Focus Search Replace PICK UP Replace NIC9223 or NIC9258 Yes POWER ON Check UP DOWN MOTOR Replace NIC9286 Check NIC9286 pin73 voltage during Focus Search 5V No Yes Yes No No Yes Yes No No Yes Samsung Electronics 6 5 Troubleshooting ...

Page 32: ...o Output Malfunction Check voltage of NIC05 5V No Check waveform of NIC9223 pin no 12 13 Check NIC9223 soldering Check waveform of NC55R L Replace NIC9223 Check NIC9223 soldering Yes Replace NIC05 Check Amp Malfunction of Audio Output Yes Yes Yes No No ...

Page 33: ...ASSETTE MOTOR ASS Y HEAD ASS Y R P HEAD ASS Y P B SOLENOID ASS Y CNTR ASS Y R P CNTR ASS Y P B FLYWHEEL ASS Y F ADR2118TW EG530YD2BH YK56RAA4N3 YK50PBB4N3 ADR2100 01 ADR2118TW 03 ADR2118TW 04 ADR2100 04 No Code No Description Specification Remarks 8 9 10 11 12 13 14 AH81 10798J AH81 10798K AH81 10798M AH81 10798N AH81 11052A AH81 11052E AH81 10798U FLYWHEEL ASS Y R PINCH ARM F PINCH ARM R CLUTCH A...

Page 34: ...33 7 2 Main Exploded View and Parts List 7 2 1 Exploded View Exploded Views and Parts List 7 2 Samsung Electronics ...

Page 35: ... HF 0660I G3174 ABS D GRAY HF 0660I G3174 ACRYL ACRYL SECC 1 0T SECC 0 8T BRACKT FAN FAN DC REMOCON ASSY No Code No Description Specification Remarks 2 3 4 5 6 7 8 9 10 11 12 13 14 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 AH64 30390A AH64 40431A AH64 40432A AH64 50335C AH64 50337C AH61 62004A AH61 62005A AH61 20480B AH64 11222C AH64 42002B AH64 42001C AH64 11221C AH64 40430C AH64 5033...

Page 36: ...66 20193A AH66 90056A AH66 90055A AH59 10099A AH59 10100A AH59 10101A AH66 30086A AH73 10016A AJ59 20003F SLIDER CAM BELT LOAD GEAR PULLEY GEAR LOAD GEAR CAM GEAR TRAY GEAR CONVERT GEAR SYNCRO ASSY TRAY DISC ASS WORM MOTOR CUSHION MOTOR GEAR ROULETTE TRAY ROULETTE TRAY DISC ASSY PCB SENSOR ASSY TABLE CHUCK ASSY PULLEY MOTOR LEVER LIFTER RUBBER CD DECK CDP ABS HF 380 NTR CR POM M90 44 WHT POM M90 4...

Page 37: ...AH66 90056A AH66 90055A AH59 10099A AH59 10100B AH59 10101A AH66 30086A AH73 10016A AH59 20004Y AH63 70141A SLIDER CAM BELT LOAD GEAR PULLEY GEAR LOAD GEAR CAM GEAR TRAY GEAR CONVERT GEAR SYNCRO ASSY TRAY DISC ASS WORM MOTOR CUSHION MOTOR GEAR ROULETTE TRAY ROULETTE TRAY DISC ASSY PCB SENSOR ASSY TABLE CHUCK ASSY PULLEY MOTOR LEVER LIFTER RUBBER CD DECK CDP SHEET CHUCK ABS HF 380 NTR CR POM M90 44...

Page 38: ... 10014A DECK CD CHASSIS DECK M COVER GEAR GEAR A GEAR B GEAR C SHAFT PU CENTER RING TURN TABLE M PICK UP CDP SPRING T TABLE MOTOR SPINDLE MOTOR FEED SCREW PH M2 3 CMS P30NM6 CMSA30 POM M90 44 CMS V30 BLK ABS CMS V30 M0 3 Z13 SP POM CMS V30 M0 3 Z13 SP POM CMS V30 M0 3 Z16 Z90 SP POM CMS V30 D3 L79 SUS420J2 ABS GS 20 CMS V10N ABS GS 20 CMS V10N P U SOH A1 ROW V P J CS STS W PI0 4 D5 7 L9 3 CMS V10N...

Page 39: ...055A AH31 10009A AH31 10002B AH60 10014A DECK CD CHASSIS DECK M COVER GEAR GEAR A GEAR B GEAR C SHAFT PU CENTER RING CENTER KNOB TURN TABLE M PICK UP CDP SPRING T TABLE MOTOR SPINDLE MOTOR FEED SCREW PH M2 3 CMS P30AM6UD CMSP30 POM M90 44 CMS V30 BLK ABS CMS V30 M0 3 Z13 SP POM CMS V30 M0 3 Z13 SP POM CMS V30 M0 3 Z16 Z90 SP POM CMS V30 D3 L79 SUS 420J2 ABS GS 20 CMS V10N ABS 94HB CMS V30 P U SOH ...

Page 40: ... SPEAKER SYSTEM FRONT PANEL TOP PANEL NET FRAME PUNCHING CABINET WOOFER TWEETER PIEZO BADGE CORD ASS Y STEEL HOLDER NET HOLDER DUCT CUSHION FOOT SCREW W F SCREW T W SCREW T PANEL SCREW S HOLDER CAP HOLDER PS880 EXPORT 210 X 383 8 X 42 84 210 X 230 X 73 3 196 0 X 377 8 X 10 4 179 4 X 365 2 X 0 6t 209 X 302 5 X 230 SG16W50KFA SG06T13BFA ø28 35mm SAMSUNG ø5 X 0 5t STEEL ø0 18 X 20 X 29 X 2 5 mm ø17 X...

Page 41: ...0 VJ1 3722 000377 JACK RCA 4P 2C 3 5MM SN BLK 16 22 VWA1 3711 002809 CONNECTOR HEADER BOX 8P 1R 2MM STRAIGHT AH93 20003U ASSY MAIN CHIP MAX870 MAIN CHIP DOM S N A AC1 2203 000609 C CERAMIC CHIP 22nF 10 50V X7R TP 2012 AC2L 2203 001640 C CERAMIC CHIP 390PF 10 50V X7R TP 1608 AC2R 2203 001640 C CERAMIC CHIP 390PF 10 50V X7R TP 1608 AR16R 2007 000686 R CHIP 3 3Kohm 5 1 10W DA TP 2012 AR22 2007 000941...

Page 42: ...86 R CHIP 22Kohm 5 1 10W DA TP 2012 RR9 2007 000586 R CHIP 22Kohm 5 1 10W DA TP 2012 TC1 2203 000609 C CERAMIC CHIP 22nF 10 50V X7R TP 2012 TC100 2203 000979 C CERAMIC CHIP 47nF 10 50V X7R TP 2012 TC11 2203 000408 C CERAMIC CHIP 180pF 5 50V NPO TP 2012 TC12 2203 000979 C CERAMIC CHIP 47nF 10 50V X7R TP 2012 TC14 2203 000609 C CERAMIC CHIP 22nF 10 50V X7R TP 2012 TC16 2203 000979 C CERAMIC CHIP 47n...

Page 43: ... AD TP 1 8X3 2MM AR8 2001 000734 R CARBON 4 7Kohm 5 1 8W AA TP 1 8x3 2m AR8L 2003 000468 R METAL OXIDE S 10OHM 5 1W AA TP 3 3X9 AR8R 2003 000468 R METAL OXIDE S 10OHM 5 1W AA TP 3 3X9 AZD1 0403 000363 DIODE ZENER UZ6 8BH 6 8V 6 8 7 2V 500MW AZD2 0403 000363 DIODE ZENER UZ6 8BH 6 8V 6 8 7 2V 500MW DC0 2401 001954 C AL 4 7UF 20 50V GP BK 5X11MM 5 DC1 2401 001968 C AL 470NF 20 50V GP TP 5X11MM 5 DC10...

Page 44: ...IFIER 1N5392 100V 1 5A DO 15 RD4 0402 000127 DIODE RECTIFIER 1N4002 100V 1A DO 41 RD5 0402 000127 DIODE RECTIFIER 1N4002 100V 1A DO 41 RD6 0402 000127 DIODE RECTIFIER 1N4002 100V 1A DO 41 RD7 0401 000101 DIODE SWITCHING 1N4148 100V 200mA 500mW RQ12 0501 000010 TR SMALL SIGNAL KSC1008 NPN 80V 60V 700m RQ4 0501 000296 TR SMALL SIGNAL KSA709 Y PNP 800mW TO 92 RQ5 0501 000010 TR SMALL SIGNAL KSC1008 N...

Page 45: ...W DA TP 2012 UR115 2007 001028 R CHIP 560ohm 1 1 10W DA TP 2012 UR118 2007 000401 R CHIP 150ohm 5 1 10W DA TP 2012 UR120 2007 000300 R CHIP 10Kohm 5 1 10W DA TP 2012 UR130 2007 000221 R CHIP 1 2Kohm 5 1 10W DA TP 2012 UR131 2007 001177 R CHIP 8 2Kohm 5 1 10W DA TP 2012 UR135 2007 001201 R CHIP 820ohm 5 1 10W DA TP 2012 UR137 2007 000023 R CHIP 120ohm 5 1 10W DA TP 2012 UR140 2007 000518 R CHIP 2 7...

Page 46: ...000165 SWITCH TACT 12V 50MA 160GF 50GF 6X6MM S SW27 3404 000165 SWITCH TACT 12V 50MA 160GF 50GF 6X6MM S SW28 3404 000165 SWITCH TACT 12V 50MA 160GF 50GF 6X6MM S SW29 3404 000165 SWITCH TACT 12V 50MA 160GF 50GF 6X6MM S SW3 3404 000165 SWITCH TACT 12V 50MA 160GF 50GF 6X6MM S SW30 3404 000165 SWITCH TACT 12V 50MA 160GF 50GF 6X6MM S SW31 3404 000165 SWITCH TACT 12V 50MA 160GF 50GF 6X6MM S SW34 3404 00...

Page 47: ... 1 8x3 2mm UR65 2001 000429 R CARBON 1Kohm 5 1 8W AA TP 1 8x3 2mm UR67 2001 000429 R CARBON 1Kohm 5 1 8W AA TP 1 8x3 2mm UR71 2001 000429 R CARBON 1Kohm 5 1 8W AA TP 1 8x3 2mm UR79 2001 000429 R CARBON 1Kohm 5 1 8W AA TP 1 8x3 2mm UR82 2001 000429 R CARBON 1Kohm 5 1 8W AA TP 1 8x3 2mm UR83 2001 000429 R CARBON 1Kohm 5 1 8W AA TP 1 8x3 2mm UR84 2001 000429 R CARBON 1Kohm 5 1 8W AA TP 1 8x3 2mm UR87...

Page 48: ...A TP 2012 JR24R 2007 000409 R CHIP 15Kohm 5 1 10W DA TP 2012 JR25L 2007 000774 R CHIP 33Kohm 5 1 10W DA TP 2012 JR25R 2007 000774 R CHIP 33Kohm 5 1 10W DA TP 2012 JR27 2007 000282 R CHIP 100Kohm 5 1 10W DA TP 2012 JR2L 2007 001024 R CHIP HARNESS 560Kohm 5 1 10W DA TP 20 JR2R 2007 001024 R CHIP HARNESS 560Kohm 5 1 10W DA TP 20 JR32L 2007 000267 R CHIP 1 8Kohm 5 1 10W DA TP 2012 JR32R 2007 000267 R ...

Page 49: ...W TO 92L JQ8 0504 000118 TR DIGITAL KSR1003 NPN 300MW 22K 22K TO JQ9L 0504 000118 TR DIGITAL KSR1003 NPN 300MW 22K 22K TO JQ9R 0504 000118 TR DIGITAL KSR1003 NPN 300MW 22K 22K TO JR16 2001 000281 R CARBON 100ohm 5 1 8W AA TP 1 8x3 2mm JR18 2001 000281 R CARBON 100ohm 5 1 8W AA TP 1 8x3 2mm JR18L 2001 000734 R CARBON 4 7Kohm 5 1 8W AA TP 1 8x3 2m JR18R 2001 000734 R CARBON 4 7Kohm 5 1 8W AA TP 1 8x...

Page 50: ...nF 10 50V X7R TP 2012 NC190 2203 001256 C CERAMIC CHIP 8pF 0 25pF 50V NPO TP 201 NC200 2203 000979 C CERAMIC CHIP 47nF 10 50V X7R TP 2012 NC2000 2203 001026 C CERAMIC CHIP 4PF 0 25PF 50V SL TP 2012 NC201 2203 001551 C CERAMIC CHIP 1 5nF 10 50V X7R 2012 2m NC202 2203 001619 C CERAMIC CHIP 27pF 5 50V NPO TP 2012 2 NC203 2203 001619 C CERAMIC CHIP 27pF 5 50V NPO TP 2012 2 NC204 2203 000919 C CERAMIC ...

Page 51: ...HIP 430KOHM 5 1 10W DA TP 2012 NR118 2007 001213 R CHIP 82ohm 1 1 10W DA TP 2012 NR119 2007 000395 R CHIP 150Kohm 5 1 10W DA TP 2012 NR120 2007 000355 R CHIP 12Kohm 5 1 10W DA TP 2012 NR121 2007 000355 R CHIP 12Kohm 5 1 10W DA TP 2012 NR200 2007 000653 R CHIP 27Kohm 5 1 10W DA TP 2012 NR201 2007 000686 R CHIP 3 3Kohm 5 1 10W DA TP 2012 NR202 2007 000686 R CHIP 3 3Kohm 5 1 10W DA TP 2012 NR203 2007...

Page 52: ... O O O O 10EA 2EA 10 ohm 1W 20 ohm 2W R CARBON 3 3Kohm 5 1 8W AA TP 1 8 3 2mm R CHIP 3 3Kohm 5 1 10W DA TP 2012 TR SMALL SIGNAL KSD471AY NPN 800MW SCREW 3 12 YEL SCREW 3 14 YEL Code no MAX850 MAX870 860 880 Power Source Parts List PCB Ass y Main PCB Ass y Location no AC4 5 AC6 9 RC7 8 RBD1 2 AZD1 2 RBD12 2401 001902 2401 000375 2401 000475 2401 000385 2401 001943 2401 003266 2401 003267 0402 00045...

Page 53: ...000892 C CERAMIC CHIP 4 7nF 10 50V X7R TP 2012 NC101 2203 000802 C CERAMIC CHIP 33nF 10 50V X7R TP 2012 NC102 2203 001551 C CERAMIC CHIP 1 5nF 10 50V X7R 2012 2m NC103 2203 000260 C CERAMIC CHIP 10nF 10 50V X7R TP 2012 NC104 2203 001537 C CERAMIC CHIP 1nF 10 50V X7R TP 2012 NC106 2203 000892 C CERAMIC CHIP 4 7nF 10 50V X7R TP 2012 NC107 2203 000199 C CERAMIC CHIP 100nF 80 20 50V Z5U TP NC108 2203 ...

Page 54: ...1502 0501 000314 TR SMALL SIGNAL KSA812 PNP 150MW SOT 23 NR100 2007 000355 R CHIP 12Kohm 5 1 10W DA TP 2012 NR101 2007 000593 R CHIP 22ohm 5 1 10W DA TP 2012 NR102 2007 000468 R CHIP 1Kohm 5 1 10W DA TP 2012 NR103 2007 000395 R CHIP 150Kohm 5 1 10W DA TP 2012 NR104 2007 000338 R CHIP 120Kohm 5 1 10W DA TP 2012 NR105 2007 000830 R CHIP 39Kohm 5 1 10W DA TP 2012 NR106 2007 000338 R CHIP 120Kohm 5 1 ...

Page 55: ...IRE NO SHEATH CU SPCW 300V 52 4mm 1 0 5 NJW106 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4mm 1 0 5 NJW107 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4mm 1 0 5 NJW107 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4mm 1 0 5 NJW108 3301 000297 CORE FERRITE BEAD AA 3 6x1 2x5 7mm 1400 NJW109 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4mm 1 0 5 NJW110 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4mm 1 0 5 N...

Page 56: ... O O O O 10EA 2EA 10 ohm 1W 20 ohm 2W R CARBON 3 3Kohm 5 1 8W AA TP 1 8 3 2mm R CHIP 3 3Kohm 5 1 10W DA TP 2012 TR SMALL SIGNAL KSD471AY NPN 800MW SCREW 3 12 YEL SCREW 3 14 YEL Code no MAX850 MAX870 860 880 Power Source Parts List PCB Ass y Main PCB Ass y Location no AC4 5 AC6 9 RC7 8 RBD1 2 AZD1 2 RBD12 2401 001902 2401 000375 2401 000475 2401 000385 2401 001943 2401 003266 2401 003267 0402 00045...

Page 57: ... Code no Description Specification Description Specification MAX870 DUAL 230V 115V O X X O O X X X O O O O O X X O X X X X X X O X X X O X X O O X X Power PCB Pats Option List PCB Ass y Power PCB Ass y Location no RF1 RF2 RF3 4 JWA JWB JWC JWD JWE JWF JWG 3601 000263 3601 000263 3601 000301 3601 000282 3811 000389 3811 000389 3811 000389 3811 000389 3811 000389 3811 000389 3811 000389 FUSE FERRULE...

Page 58: ...0 60Hz TRANS POWER E185 8 57 115 230V 50 60Hz Code no Model Power Source BAND Option List Main PCB Ass y AH40 10001T AH40 10001U 2707 000029 2707 000586 2707 000300 3811 000389 0501 000398 2903 000102 2903 000105 3811 000389 2903 000105 AH27 80060B AH26 80060A TFE1 J6 7 8 TR20 21 TR22 JW3 4 IQ5 6 7 TFL1 3 JW18 TFL2 TL1 X O X O O X O X O O X O X X O O X X O X X O O X X O O X X O O X O O X X O O X T...

Page 59: ...VR ROTARY 10Kohm 20 1 10W TOP IC OP AMP 4560 SOP 8P 150ML DUAL 100V M TR SMALL SIGNAL KSD471A Y NPN 800mW TR SMALL SIGNAL KSC945 NPN 250mW TR SMALL SIGNAL KSC945 NPN 250mW R CARBON 560ohm 5 1 8W AA TP 1 8x3 2mm R CHIP 10Kohm 5 1 10W DA TP 2012 LED ROUND RED 3 1mm 650nm SWITCH TACT 12V 50MA 160GF 50GF R CARBON 47ohm 5 1 8W AA TP 1 8X3 2mm DIODE SWITCHING 1N4148 100V 200mA 500mV C AL 1UF 20 50V TP 5...

Page 60: ...9 Block Diagrams 9 1 Main Samsung Electronics 9 1 ...

Page 61: ... MOTOR CONTROL S W SENSOR FOK MAIN PCB MAIN PCB MICOM CTRL LINE POWER AUDIO LINE 10 1 11 2 19 19 R G L 21 20 36 37 38 68 25 26 30 29 10 70 72 73 75 76 27 MCK MDATA MLT ISTAT SQDT LKFS SOS1 SQCK A GND R CH L CH GND B RESET LOCK SMEF WDCH SMON SMSD SL IN SP IN TE IN EF IN VREF SL SL MOTOR ACTUATOR DRIVER 6 ASSP KB9223 NIC 9223 SCW1 SCW4 SIC1 SIC2 SIC3 DIGITAL SIGNAL PROCESSOR 16 9344MHz 66 69 8 EFM ...

Page 62: ...9 3 Samsung Electronics Block Diagrams DATA CLK STB CLK P1 P2 P3 P4 P5 P15 P16 SO Controller Circuit Shift Register Latch Circuit NJU3716M JIC5 BA4560 DIC4 9 3 1 Main 9 3 IC TR Internal Diagrams ...

Page 63: ...ABLE DIVIDER SWALLOW COUNTER 1 16 1 17 4D1ts 1 2 L N1 L N2 L N3 L N4 R N1 R N2 R N3 R N4 11 12 13 14 10 9 8 7 100K 100K 100K 100K 100K 100K 100K 100K G G 0 30dB 2dB STEP INPUT MULTIPLEXER GAIN MUXOUTL 15 16 27 26 25 23 24 TREBLE L MOUT L BN L BOUT L UN L R R MUXOUTR TREBLE R MOUT R BN R BOUT R CREF UN R R R 17 18 20 19 20 21 22 2 4 3 5 30 1 29 6 AGND R OUT L OUT DIGGND SDA SCL SPKR ATT LEFT I CBUS...

Page 64: ...3 N C 4 N C 5 DIFOUT 6 CIN 7 AIN 8 VCC 9 PEAK HOLD PEAK HOLD PEAK HOLD PEAK HOLD PEAK HOLD PEAK HOLD PEAK HOLD RES RES RES RES RES RES RES G4Hz BPF 160Hz BPF 400Hz BPF 1KHz BPF 2 5KHz BPF 6 3KHz BPF 15 6KHz BPF DIF 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 GND AOUT TEST N C N C SEL C B A BIAS VREF REFFERENCE CURRENT MPX A A C C DES BA3834S UIC3 NJU3718 UIC2 ...

Page 65: ...0 19 18 17 16 ALC DUFF AM OSC AM MIX AM RF AMF AGC AM DET AM IF SMFT LEVEL DET FM IF FM DET REG GND TUNING DRIVE S CURVE AM FM IF BUFF COMP VCC AM FM SW VCC PHASE DET PILOT DET FF FF FF STEREO DRIVE TRIG MUTE STERO SW DECODER PM AM SW A SW B SW C SW D 14 13 12 10 9 8 11 1 2 3 5 6 7 4 LA1836 TIC1 LC4966 DIC2 ...

Page 66: ...1 31 2 30 3 29 4 28 5 27 6 26 7 25 8 24 9 23 10 22 11 21 12 20 13 19 14 18 15 17 16 C L K L P F A D L O G I C SFB SW MODE SEL SU EC SU EC MODE SEL PHASE SEL V O L 16kSRAM L P F D A 6 1 2Vcc MICMIX SW DMIX SW ON OFF 1 2 Vcc VOL SEL PHASE SEL NJM074 DIC3 M65846FP DIC1 ...

Page 67: ... MSOUT 20 19 18 17 16 15 14 13 12 PB A B 11 10 9 8 7 6 5 BIAS 1 DET R RECOUT R EQOUT R EQIN R PBOUT R RIN R 33k 0 1µ 4 3 ABO R 0 0047µ 2 AIN R 1 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 V EE V CC V CC VEE BIAS V CC V EE BIN R DET L RIN L BIN L ABO L AIN L GND BIAS 2 0 1µ 0 0047µ 22k A 120 70 NORM HIGH BIAS ON OFF NR ON OFF RM ON OFF B NORM CROM METAL REC PB PASS BIAS M BIAS C...

Page 68: ...P3 P4 P5 P15 P16 SO Controller Circuit Shift Register Latch Circuit CK C SI SO OP 10 I O 10 I O 9 OP 9 I O 8 OP 8 I O 7 OP 7 I O 6 OP 6 I O 5 OP 5 I O 4 OP 4 I O 3 OP 3 I O 2 OP 2 I O 1 OP 1 GND VDD STB Serial Latch Latch Latch Driver Y NJU3716M JIC5 TC9173P JIC6 ...

Page 69: ...edriver LB1641 BA6209 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 6 7 8 9 10 11 12 13 14 LEVEL SHIFT LEVEL SHIFT BUY 10K 10K REGULATOR 10K MUTE 50K 50K 10K LEVEL SHIFT LEVEL SHIFT 10K BUY T S D 10K BUY 5 KA9258 NIC9258 LB1641 BA6209 MOTOR DRIVER SIC1 SIC2 SIC3 NIC1641 9 3 2 CD TR 1 E NOTE KSB564 EBC TYPE C B 2 3 KSR1003 A928 ...

Page 70: ... LRCHI EMPH VREFL1 VREFH1 XTALSEL TESTO CDROM TEST1 DATX RCHOUT LCHOUT S0S1 SBCK SDAT SUBCODE SYNC DETECTOR SUBCODE OUTPUT SUBCODE Q REGISTER EFM PHASE DETECTOR FRAME SYNC DETECTOR PROTECTOR INSERTOR EFM DEMODULATOR SQDT SQCK DIGITAL PLL DIGITAL CLV SERVO 23BIT SHIFT REGISTER X TAL TIMING GENERATOR CPU INTERFACE TRACK COUNTER MODE SELECTOR DIGITAL OUTPUT ADDRESS GENERATOR 16K SRAM ECC INTERPOLATOR...

Page 71: ...0 CH11 MUTEI RRC CH20 CH21 GC21 GC20 DCC1 RFO PD1 PD2 F E EI PD LD VR ARF IRF ASY EFM RFI DCB Focus Error Amp FE BIAS Adjustment Tracking Error Amp E F Balance Gain Control APC Amp Center Voltage Amp RF Level AGC Equalizer EFM Comparator Defect Dectection Circuit Micom Data Interface Logic MICOM TO SERVO CONTROL AUTO SEQUENCER ADJUSTMENT FREE CONTROL FS1 to FS4 TM to TM6 BAL1 to BAL5 PS1 to PS4 GA...

Page 72: ...0 11 12 13 14 15 16 S1 2 3 4 I I O I O O O I O O O I O I I I I I I I I I I I O O O O O O O O O O O O O O O O O O TC9173 INPUT MULTI JOG IN POWER ON OFF TUNED DSP MUTE AUDIO MUTE LC72131 PLL CE LC72131 DATA INPUT LC72131 TDA7439 LC72131 TDA7439 M65846 CE POWER SENSE FM MONO STEREO SUB OSC CLOCK MAIN GND MAIN OSC MAIN OSC MAIN 5V POWER AMP PROTECT HPS AMPS SIGNAL EQUALIZER INPUT A D KEY INPUT 1 A D ...

Page 73: ...CLK3 DO3 CE33 O O O O O O O O O O O O O I I I I I I I O O O O O O O O O I I I O O O O O O O O O O I O O O O VFD SEG 5 VFD SEG 6 VFD SEG 7 VFD SEG 8 VFD SEG 9 VFD SEG 10 VFD SEG 11 VFD SEG 12 VFD SEG 13 VFD SEG 14 VFD SEG 15 VFD SEG 16 VFD SEG 17 TUNER TIME PRO LOGIC FOCUS OK SENSE LIMIT SWITCH SENSE1 ROULETTE LATCH OPEN MOTOR CLOSE MOTOR RESET C LATCH REM DO PRO DO EMPHASI REM CE PRO LED P ERE VR ...

Page 74: ...LED ECHO LED PRO LED SCORE LED MICOM 99 MICOM 98 MICOM 93 VDD STOP LED COMM 1 LED GND COMM 2 LED COMM 3 LED DISC 1 LED JOG LED CD MUTE VCD REMAKE RESET Name No Function 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 P 7 8 9 10 11 GND P 12 13 14 15 16 S 0 DO3 CLK3 CE32 CLR P 1 GND P 2 3 4 5 6 VDD STS 1 R P P B 1 MOTOR HI SP REC 1 A B NOR HI REC MUTE DOLBY NR TUNER MODE SRS STS LINE ...

Page 75: ...for post filter channel2 The output pin for post filter channel1 The input pin for post filter channel1 Amplifier output pin for gain and low pass filtering of DAC output CH1 Amplifier negative input pin for gain and low pass filtering of DAC output CH1 The pin for noise reduction of post filter bias VSS for post filter The input pin for post filter muting control The input pin for current setting...

Page 76: ...acking servo input pin Tracking error amplifier output pin The input pin of tracking error low pass filtering signal The power supply pin for logic circuit The capacitor connectiong pin for tracking defect compensation Focus servo input pin Focus error amplifier output pin The capacitor connection pin for focus defect compensation The capacitor connection pin for high frequency tracking gain switc...

Page 77: ...udio data bit clock output of 48 bit Slot 2 1168MHz 4 2336MHz when ESP ON C2 Pointer for output audio data Input terminal2 of reference voltage L Floating Input terminal2 of reference voltage L GND connection Analog VCC2 Right Channel audio output through D A converter Left Channel audio output through D A converter Analog ground2 Input terminal1 of reference voltage H VDD connection Input termina...

Page 78: ...gital ground2 Window or unprotected frame sync RA7 Frame sync protection state RA8 Display of either RAM overflow or underflow for 4 frame jitter margin RA9 Only monitoring signal 4 2336MHz RA10 16 9344MHz signal output RA11 Terminal for test Terminal for test Mode Selection1 H 33 8688MHz L 16 9344MHz TEST input terminal GND connection Mode Selection2 H CD ROM L CDP TEST input terminal GND connect...

Page 79: ...10 PCB Diagrams 10 1 Main Samsung Electronics 10 1 ...

Page 80: ...10 2 Samsung Electronics PCB Diagrams ...

Page 81: ...10 2 Front PCB Diagrams Samsung Electronics 10 3 ...

Page 82: ...10 3 Deck PCB Diagrams 10 4 Samsung Electronics ...

Page 83: ...10 4 CD PCB Diagrams 10 4 1 Main Samsung Electronics 10 5 ...

Page 84: ...PCB Diagrams 10 4 2 SUB 10 6 Samsung Electronics ...

Page 85: ...11 Wiring Diagram Samsung Electronics 11 1 FWC1 FCW2 FCW3 FCW3 1 FJ1 VWA1 FJ2 RWA1 AJ2 PW1 PJ1 SCW1 SCW2 SCW4 SCW3 NCW101 NCW103 FJD2 DCW6 DCW8 DCW9 DCW7 ...

Page 86: ...TIC1 LA1836 TIC2 LC72131 OIC1 LC4066 QIC2 IR3R42 FIC2 TDA7439 DIC1 M65846 DIC2 LC4966 AIC1 417 100 130 12 Schematic Diagrams 12 1 Main Samsung Electronics 12 1 ...

Page 87: ...12 2 Front Schematic Diagrams 12 2 Samsung Elctronics UIC2 NJU3718 UIC1 LC866548V XXXX MIC1 BA4560 UIC4 MSM6654 UIC3 BA3834 ...

Page 88: ...C5 NJU3716 SIC8 NJM318 SIC7 NJM318 SIC6 SIC4 NJM072 SIC1 NJM074 MC14066 SIC2 SIC3 NJM072 JIC6 TC9173P JIC3 HA12203 L CH GND R CH L CH L CH R R CH R R CH GND ERASE 12 3 Deck Schematic Diagrams 12 3 Samsung Electronics ...

Page 89: ...D 12 4 Samsung Electronics Schematic Diagrams 1 2 NCW104 NCW100 G3X8 KB9223 KS9286 SCHEMATIC DIAGRAM NIC1641 SIC2 1 CD SIC1 LB1641 3 CD NIC9223 KB9223 ASSP NIC9286 KS9286 DSP D ACON NIC9258 KA9258 NCW101 1 2 ...

Page 90: ...2 5V 2 5V 2 5V 8V 5V 5V 0V 2 5V 2 5V 2 5V 0V 2 5V 2 5V 2 5V 8V 8V 2 5V 2 5V 2 5V 2 5V 0V 4 5V 4 5V 2 5V 8V 5V 5V 0V 2 5V 4 5V 4 5V 0V 4 5V 4 5V 2 5V 8V 8V 2 5V 2 5V 4 5V 4 5V 0V No IC Name STOP MODE STOP MODE KB9223 PLAY MODE PLAY MODE 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 5V 0V 5V 2 5V 5V 0V 5V 0V 3 8V 2 5V 5V 0V KB...

Page 91: ... Date Running Change SUBJECT Service Guide for model employed the new speaker NO 1 2 3 4 5 6 7 8 9 Old Model Name MAX 800 MAX 810 MAX 820 MAX 830 MAX 850 R MAX 852P MAX 860 MAX 870 MAX 880 New Model Name MAX 805 MAX 818 MAX 828 MAX 838 MAX 858 R MAX 858P MAX 868 MAX 878 MAX 888 Service Manual Code No AH68 20181A AH68 20173A AH68 20186A AH68 20186A AH68 20176A AH68 20195A AH68 20176A AH68 20177A AH...

Page 92: ...ic bass sound Especially by the dynamic range of the medium and low frequency response the noise generated through the port is reduced effectively to reproduce the clear bass sound Power PortTM is the patent of Polk Audio in U S A Samsung Electronic has the manufacturing license to produce it Right R speaker Red cable Black cable Red cable Black cable R L Left L speaker Front and rear tweeter Refl...

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