Samsung MAX-805 Service Manual Download

Page: 27 / 72

6-1-3 Tuner Malfunction(FM/AM)

IZD1(8.2V) Voltage ok ?

Yes

Check TUNER IC(LA1836)

pin no.10 ; 8.2V
pin no.14 ; 7.2V

AM ; 0V ?

Yes

LC72131

CONTROL ok?

Yes

FM VT

LC72131 pin no.20

1.7V 7.5V ?

Yes

AM VT

LC72131 pin 20

Check the LC72131

CONTROL ok?

Yes

Check HIC1

pin 20 ?

LPF1,2

output ok?

Check BIC1 TDA7439 function ok?

Check FEP interior

pattern, and any line

disconnections.

1) Power impaired

so repair defects.

2) LC72131 Oscillator

(HX1 : 7.2MHz) ok ?

3) System line ok?

Yes

Check for

-com IC

Replace LC72131

HZD1 (5.6V) Voltage ok?

HIC1 (LC72131) FM/AM BAND

Switching ok?

0.9V 7V

Power section defective

RIC1(MC7812) Voltage ok?

OUT: 12V

Check the voltage ok ?

Samsung Electronics

6-3

Troubleshooting

Summary of Contents for MAX-805

Page 1: ...PONENT 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 Feb 1998 Printed in Korea Code no AH68 20181A ...

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 8KHz 6dB 0 15 60 dB 45 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 noise ...

Page 8: ...Remote Control ...

Page 9: ...3 Disassembly and Reassembly 3 1 Cabinet Top 1 Remove 11 screws holding the Cabinet Top 2 Lift the back of the Cabinet Top and slide it to the rear to remove Figure 3 1 Samsung Electronics 3 1 ...

Page 10: ...nd Reassembly 2 TRAY 1 4 5 4 1 After power is connected Turn power on Open the tray using the open close key 2 After power is not connected Turn the Gear clockwise using the hand as shown in figure 3 2 1 Pull the Tray in the direction of arrow 3 Remove 4 screws and lift the CD Mecha ...

Page 11: ...inet Rear and slide it to rear to remove see arrow 2 Remove the Main PCB 1 Remove 3 screws 2 Remove the Cabinet Rear by pushing the ÒAÓ and ÒBÓ as shown 7 6 5 8 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: ...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 14 7 ...

Page 16: ...IVR1 so that TUNED of FLT is lighted Figure 4 2 4Gain 20dB CE standard Figure4 2 FM Auto Search Level Adjustment Figure4 3 AM I F Adjustment Figure4 1 IF CENTER and THD Adjustment SSG FREQ Adjustment point IVR1 98 MHz BEACON SENSITIVITY SEMI VR 5KΩ FM SSG OUTPUT AM SSG 450KHZ INPUT AM ANT IN Speaker Terminal 60cm IFT1 VTVM Oscilloscope GND 30 dB FM SSG Output GND Speaker Terminal FM Antenna Termin...

Page 17: ... Control Azimuth 1 MTT 111CN 8KHZ Fig 4 6 Output Maximum Remark Standard Figure Location no Item Step Tape HEAD L R Unbalance 1 2 MTT 112B 1KHZ MTT 5512 3000 30KHZ Fig 4 5 Fig 4 5 VTVM A DECK 85KHZ 1KHZ JR30 Remark Frequency Range Figure Location no Item Step Tape JVR3R JL3 Record Frequency TP3 Cassette Deck Speaker Terminal output LINE OUT Frequency Counter Figure 4 4 Figure 4 6 Recording Play he...

Page 18: ...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 19: ...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 20: ...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 21: ... 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 22: ...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 23: ...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 24: ...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 25: ...s UX1 12MHz oscillate FRONT PCB PWR SENS voltage normal pin no 27 5V Check the Main PCB RIC1 pin no 10 15V Yes Front PCB When the power is ON H displays at pin no 5 5V Yes Connect Front PCB and Main PCB Check the connector Main PCB Wafer MCW2 No Replace µ com Yes No No No No Check the Power PCB P T FUSE No Samsung Electronics 6 1 6 Troubleshooting 6 1 Amplifier 6 1 1 Power Malfunction ...

Page 26: ...with Remocon Replace Headphone jack soldering condition Main PCB AIC1 TDA7265 pin no 3 B circuits Check the B power source part in RD7 8 11 12 RC3 38V Yes Confirm for TR short replace it Check if the output line is short No No No No Yes Yes AJ2 6 2 Samsung Electronics Troubleshooting ...

Page 27: ...in 20 LPF1 2 output ok Check BIC1 TDA7439 function ok Check FEP interior pattern and any line disconnections 1 Power impaired so repair defects 2 LC72131 Oscillator HX1 7 2MHz ok 3 System line ok No Yes Check for µ com IC Replace LC72131 No HZD1 5 6V Voltage ok HIC1 LC72131 FM AM BAND Switching ok No No No No No No No 0 9V 7V Power section defective RIC1 MC7812 Voltage ok OUT 12V Check the voltage...

Page 28: ...Check voltage AC 3 6V at FRONT PCB FLT No Check Main PCB Front PCB connection and the voltage of MCW2 pins1 2 AC 3 6V Yes Check voltage at UIC1 pin no 48 30V No Check the voltage of RR7 30V Reinsert the connector Replace UIC1 6 4 Samsung Electronics Troubleshooting ...

Page 29: ... L Check for voltage at JL3 Osc Frequency 85kHz When inoperative LQ3 check Convert of P B R P Signal Oscillate RECORD BIAS 85kHz Convert of PLAY RECORD R P Switching Check for voltage at pin no 16 8 TAPE IC JIC1 KA22291 BIAS OSC Mode Rec PLAY pin no 16 8 12V 9V Samsung Electronics 6 5 Troubleshooting ...

Page 30: ...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 6 6 Samsung Electronics Troubleshooting ...

Page 31: ...C05 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 Samsung Electronics 6 7 Troubleshooting ...

Page 32: ...Y REEL GEAR ASS Y ARM SENSOR PAUSE LOCK ARM ADR2006FW 11134 01280AA 51299 02506XC ADR28 010 ADR26 001 ADR02 042 ADR15 021 ADR15 022 EG530YD2B ADR22 012 11128 00045AA 11102 00530AA 11116 00011A No Code No Description Specification Remarks 13 14 15 16 17 18 19 20 21 22 23 24 25 26 AH81 10025P AH81 10026B AH81 10026W AH81 10026W AH81 10025Q AH81 10025R AH81 10025S AH81 10025T AH81 10026U AH81 10022E ...

Page 33: ... DECK CASSETTE LEAF SWITCH PINCH ROLLER ASS Y SENSOR LEVER R F PULLEY ASS Y BELT FLYWHEEL ASS Y FLYWHEEL ASS Y CAM GEAR S REEL ASS Y T REEL ASS Y BELT EJECT LEVER R P HEAD ERASE HEAD MOTOR REC SAFETY LEVER YN21ZSW 70 8521 200060 300 6021 200213 001 8521 200090 300 6600 090020 001 8521 200110 001 8521 200110 300 8521 200030 300 6021 200802 001 8521 200080 300 8521 200070 300 6600 090013 000 6021 20...

Page 34: ... ASS Y PAUSE LEVER PAUSE LEVER PAUSE STOPPER LEAF SWITCH PINCH ROLLER ARM ASS Y SENSOR RF CLUCH ASS Y RF BLET FLYWHEEL ASS Y CAM GEAR FF GEAR SUPPLY REEL ASS Y TAKE UP REEL ASS Y EJECT SLIDE LEVER PACK SPRING MAIN BELT MOTOR R P HEAD P B HEAD E HEAD AUTO LEVER F AUTO LEVER R EJECT SLIDE LEVER TURN OVER SPRING GEAR T CAM F T CAM GEAR R PINCH ROLLER F PINCH ROLLER R REEL ASS Y LEAF SW FLY WHEEL ASS ...

Page 35: ...DOM ABS 94HB GRAY MAX810 EXP ABS 94HB BLK MQ 810 DOM A STOP ABS GRAY MAX810 STOP ABS 94HB BLK MAX 800 EXP MIPS 94HB BLK MAX 810 PMMA VIOLET LG41802 PC 0 3T BLK MAX 810 MAX800 EXP ABS 94HB GRAY MAX800 EXP ABS 94HB BLK MAX 810 PMMA VIOLET LG71129 AL L30 MQ 800 ABS 94HB BLK MQ 800 DOM A STOP MIPS GRAY MAX810 EXP A STOP MIPS BLK SUS PI1 0 MAX 345 POM M0 8 G130 BLK MAX 630 ABS 94HB MID GRAY MQ 810 ABS ...

Page 36: ...7 2 Main Exploded View and Parts List 7 2 1 Exploded View Exploded Views and Parts List Samsung Electronics 7 5 ...

Page 37: ...A AH66 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 M...

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: ...1035F AH81 11035G AH81 11035H AH81 11035J AH81 11035K AH81 11035L AH81 11035M SPEAKER SYSTEM FRONT PANEL NET FRAME CABINET WOOFER DUCT CORD CLIP CORD ASS Y W F CUSHION DUCT CUSHION SCREW BACK LABEL FOOT PS800E MAX800 EXPORT 139 X 96 X 39t 199 5 x 313 x 51t 199 5 W x 145 D x 314 H SG12G33KFA Ø40 X Ø46 X 85mm Ø11 7 X Ø17 X 13t Ø0 18 X Ø20 X 2P X 2 5m Ø110 X Ø136 X 1 5t Ø36 5 X Ø60 X 2t Ø3 5 X 12L PS...

Page 40: ...200V 3A DO 201AD RD8 0402 000157 DIODE RECTIFIER 1N5402 200V 3A DO 201AD RF1 3601 000304 FUSE FERRULE 250V 630mA TIME LAG GLASS 5 RF3 3601 000248 FUSE FERRULE 250V 2A TIME LAG GLASS 5x20 RF4 3601 000248 FUSE FERRULE 250V 2A TIME LAG GLASS 5x20 RIC1 1203 000242 IC POSI FIXED REG 7812 TO 220 3P PLAS RIC2 1203 000276 IC POSI FIXED REG 7805 TO 220 3P PLAS RQ1 0502 000424 TR POWER 2SB1566 F PNP 60V 50V...

Page 41: ...0V GP TP 5X11 5MM BC8R 2401 002180 C AL 2 2UF 20 50V GP TP 5X11 5MM BC9L 2401 002180 C AL 2 2UF 20 50V GP TP 5X11 5MM BC9R 2401 002180 C AL 2 2UF 20 50V GP TP 5X11 5MM BD1 0401 000101 DIODE SWITCHING 1N4148 100V 200mA 500mW BD2 0401 000101 DIODE SWITCHING 1N4148 100V 200mA 500mW BL2 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4mm 1 0 5 BL3 2701 000179 INDUCTOR AXIAL 33uH 10 4 2x9 8mm BQ1L 0504 0001...

Page 42: ...1975 C AL 47UF 20 16V GP TP 5X11MM 5 IC27 2201 000565 C CERAMIC DISC 47nF 20 50V Y5V 12 5X4 0 IC28 2401 000475 C AL 10UF 20 50V GP 5X11 2MM IC29 2301 000442 C FILM PEF 4 7nF 10 50V TP 5 5x7x3mm 5m IC3 2401 000475 C AL 10UF 20 50V GP 5X11 2MM IC4 2202 000854 C CERAMIC MLC AXIAL 47NF 30 50V Y5R TP IC5 2201 000260 C CERAMIC DISC 180pF 10 50V SL 4x4 2 5 IC6 2202 000781 C CERAMIC MLC AXIAL 100pF 10 50V...

Page 43: ...0m JQ5L 0501 000010 TR SMALL SIGNAL KSC1008 NPN 80V 60V 700m JQ5R 0501 000010 TR SMALL SIGNAL KSC1008 NPN 80V 60V 700m JQ6 0504 001003 TR DIGITAL KSR2003 PNP 300MW 22K 22K TO JQ7 0504 001003 TR DIGITAL KSR2003 PNP 300MW 22K 22K TO JQ8 0504 000118 TR DIGITAL KSR1003 NPN 300mW 22K 22K TO JQ9 0501 000294 TR SMALL SIGNAL KSA708 Y PNP 800mW TO 92 JR10L 2001 000734 R CARBON 4 7Kohm 5 1 8W AA TP 1 8x3 2m...

Page 44: ... 9Kohm 5 1 8W AA TP 1 8x3 2m RR11 2001 000522 R CARBON 22Kohm 5 1 8W AA TP 1 8x3 2mm RR12 2001 000522 R CARBON 22Kohm 5 1 8W AA TP 1 8x3 2mm RR13 2001 001178 R CARBON S 680ohm 5 1 2W AA TP 2 4x6 4 RR14 2001 000802 R CARBON 5 6KOHM 5 1 8W AA TP 1 8X3 2M RR15 2001 000362 R CARBON 150ohm 5 1 8W AA TP 1 8x3 2mm RR16 2001 000331 R CARBON 12Kohm 5 1 8W AA TP 1 8x3 2mm RR17 2001 000522 R CARBON 22Kohm 5 ...

Page 45: ... 2001 000734 R CARBON 4 7Kohm 5 1 8W AA TP 1 8x3 2m UR3 2001 000449 R CARBON 2 2Kohm 5 1 8W AA TP 1 8x3 2m UR31 2001 000429 R CARBON 1Kohm 5 1 8W AA TP 1 8x3 2mm UR32 2001 000290 R CARBON 10Kohm 5 1 8W AA TP 1 8x3 2mm UR33 2001 000449 R CARBON 2 2Kohm 5 1 8W AA TP 1 8x3 2m UR34 2001 000734 R CARBON 4 7Kohm 5 1 8W AA TP 1 8x3 2m UR35 2001 000508 R CARBON 220Kohm 5 1 8W AA TP 1 8x3 2m UR36 2001 0007...

Page 46: ... 2203 000260 C CERAMIC CHIP 10nF 10 50V X7R TP 2012 NC115 2203 001137 C CERAMIC CHIP 68NF 80 20 50V Y5V TP 2 NC116 2203 000260 C CERAMIC CHIP 10nF 10 50V X7R TP 2012 NC118 2203 000787 C CERAMIC CHIP 330pF 5 50V NPO TP 2012 NC119 2203 000199 C CERAMIC CHIP 100nF 80 20 50V Z5U TP NC120 2203 000199 C CERAMIC CHIP 100nF 80 20 50V Z5U TP NC121 2203 000199 C CERAMIC CHIP 100nF 80 20 50V Z5U TP NC124 220...

Page 47: ...3 2007 001177 R CHIP 8 2Kohm 5 1 10W DA TP 2012 NR114 2007 000477 R CHIP 1Mohm 5 1 10W DA TP 2012 NR115 2007 000444 R CHIP 180Kohm 5 1 10W DA TP 2012 NR116 2007 001195 R CHIP 820Kohm 5 1 10W DA TP 2012 NR117 2007 000898 R CHIP 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 T...

Page 48: ...Samsung Electronics 9 1 BIC1 TDA7439 JIC1 TAPE EQ KA22291 IIC1 LA1836 IF MPX UIC1 LC866232 XXXX AIC1 TDA7265 HIC1 LC72131 PLL 9 Block Diagrams 9 1 Main ...

Page 49: ... 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 50: ...Samsung Electronics 9 3 TDA7265 AIC1 9 3 1 Main 9 3 IC TR Internal Diagrams Block Diagrams ...

Page 51: ... REC GND Vcc Vcc PBOUT 2 100K PRE INPUT N F ALC DET PRE N F INPUT REC NF 2 REC IN 2 REC IN 1 REC IN 1 100K ALC TIME CONSTANT R P SW A IN B IN A B SELECT S W A IN B IN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 29 29 28 27 26 25 24 23 22 21 20 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...

Page 52: ... 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 DECDER LATCHES 2 VOLUME TREBLE MIDDLE BASS SPKR ATT RIGHT Verf V3 VOLUME TREBLE MIDDLE BASS 32 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...

Page 53: ... 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 9 6 Samsung Electronics Block Diagrams TR 1 E NOTE KSB564 EBC TYPE C B 2 3 KSR1003 A928 ...

Page 54: ... 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 DIGITAL FILTER DE EMPH D A CONVERTER 8...

Page 55: ...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 56: ...LC72131 DATA INPUT LC72131 PLL CE TEST PIN RESET PORT SUB OSC CLOCK MODE 32 768KHz SUB OSC CLOCK MODE 32 768KHz GROUND MAIN OSC INPUT 12MHz MAIN OSC OUTPUT 12MHz MAIN POWER INPUT PORT 5V A D KEY INPUT 1 A D KEY INPUT 2 TAPE KEY OPTION VOLUME UP TUNET SD POWER SENS CD TRAY SENS SCOR INTERRUPT REMOCON INPUT PORT of GRID CONTROL FLT PORT of GRID CONTROL FLT PORT of GRID CONTROL FLT PORT of GRID CONTR...

Page 57: ... O I O O O O O O O O O O SEGMENT CONTROL PORT OF FLT SEGMENT CONTROL PORT OF FLT SEGMENT CONTROL PORT OF FLT SEGMENT CONTROL PORT OF FLT SEGMENT CONTROL PORT OF FLT SEGMENT CONTROL PORT OF FLT SEGMENT CONTROL PORT OF FLT SEGMENT CONTROL PORT OF FLT SEGMENT CONTROL PORT OF FLT SEGMENT CONTROL PORT OF FLT SEGMENT CONTROL PORT OF FLT SEGMENT CONTROL PORT OF FLT SEGMENT CONTROL PORT OF FLT SEGMENT CON...

Page 58: ...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 of focus search track ju...

Page 59: ...plifier 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 switch The pin for high frequency gain change...

Page 60: ...t 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 terminal2 of reference voltage H Floating Empha...

Page 61: ...e 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 connection TEST input terminal GND connection E...

Page 62: ...10 PCB Diagrams 10 1 Main Samsung Electronics 10 1 ...

Page 63: ...10 2 Front PCB Diagrams 10 2 Samsung Electronics ...

Page 64: ...10 3 CD PCB Diagrams 10 3 1 Main Samsung Electronics 10 3 ...

Page 65: ...PCB Diagrams 10 3 3 SUB 10 4 Samsung Electronics ...

Page 66: ...11 Wiring Diagram Samsung Electronics 11 1 JCW1 MCW2 RCON1 ACW2 UCW1 UCW2 UCW3 1 UCW3 RCW1 PSCW1 TO CD PCB AC CORD TO CD PCB MAIN PCB FRONT PCB POWER PCB NCW101 8 PIN NCW103 12PIN ...

Page 67: ...IIC1 HIC1 BIC1 TDA7439 JIC1 KA22291 AIC1 TDA7265 LA1836 12 Schematic Diagrams 12 1 Main Samsung Electronics 12 1 ...

Page 68: ...12 2 Front Schematic Diagrams 12 2 Samsung Elctronics UIC1 LC866224 ...

Page 69: ... 3 CD Samsung Electronics 12 3 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 1 2 ...

Page 70: ...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 71: ... 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 72: ...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...

Search results

Summary of Contents for MAX-805

Reviews:

Related manuals for MAX-805

Brands by name

Popular brands

Samsung MAX-805, Service Manual

Search results

Summary of Contents for MAX-805

Reviews:

Related manuals for MAX-805

Brands by name

Popular brands