SITRONICS CMR500 Service Manual Download Page 16 | Manualshive

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6-1

6-1

SERVO BOARD

TABLE OF CONTENTS

Circuit Diagram...................................................................6-2
PCB Layout ........................................................................6-3

..............................................................6-4

Electrical Parts List

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Summary of Contents for CMR500

Page 1: ...Service Aids Safety Instruction etc 1 4 to 1 5 Preparations Controls 1 6 to 1 9 Maintenance Troubleshooting 1 10 Disassembly Instructions Service positions 2 Set Block diagram 3 Set Wiring diagram 4 Key Board 5 Servo Board 6 Main Board 7 Set Mechanical Exploded view parts list 8 CMR500 ...

Page 2: ...w measurable limits 60 dB AM MW Radio Frequency range 522 1620 kHz Europe mode Usable sensitivity S N 20dB 30 dBμ FM Stereo Radio Frequency range 87 5 108 0 MHz Europe mode Usable sensitivity Frequency response Stereo separation Image response ratio IF response ratio Signal noise ratio 8 dB μ 30 Hz 15kHz 30dB 1kHz 50dB 70dB 55dB 65 0 74 0 MHz OIRT mode General Power supply Maximum power output Con...

Page 3: ...ltmeter e g PM5326 250Hz 15kHz e g 7122 707 48001 e g PM2534 S N and distortion meter e g Sound Technology ST1700B Frame aerial e g 7122 707 89001 To avoid atmospheric interference all AM measurements have to be carried out in a Faraday s cage Use a bandpass filter or at least a high pass filter with 250Hz to eliminate hum 50Hz 100Hz DUT L R LEVEL METER e g Sennheiser UPM550 with FF filter S N and...

Page 4: ... SOLDER WICK 4822 321 40042 e g A PAIR OF TWEEZERS HEATING HEATING SOLDERING IRON SOLDER WICK CLEANING PRECAUTIONS COPPER TRACK IRON CORRECT SOLDERING IRON SOLDERING CHIP COMPONENT EXAMPLES CORRECT IRON SOLDERING NO e g A PAIR OF TWEEZERS SLODERING IRON SLODER SLODERING TIME SLODERING IRON Φ0 5 0 8mm 3 secretary side PRESSURE PRESSURE SOLDER Φ0 5 0 8mm A B C B A HANDLING CHIP COMPONENTS ...

Page 5: ...e potentiaal AVVERTIMENTO Tutti IC e parecchi semi conduttori sono sensibili alle scariche statiche ESD La loro longevita potrebbe essere fortemente ridatta in caso di non osservazione della piu grande cauzione alla loro manipolazione Durante le riparazioni occorre quindi essere collegato allo stesso potenziale che quello della massa dell apparecchio tramite un braccialetto a resistenza Assicurars...

Page 6: ...PREPARATIONS Wiring Diagram 1 6 Battery 12V yellow ACC red Auto Antenna blue Ground black Antenna Fuse 15A Connector ISO connector Rear Line out Rear Gray ...

Page 7: ...ing the RESET button will erase the clock setting and stored stations Panel Open Trackseek Radio tune Press to tune in a preset station Hold for more than 2 seconds to store station Radio preset Power ON OFF Radio local distant FM stereo mono Loudness SRC SEARCH PWR DISP MUTE DN VOL UP AMS SEARCH Radio Rotate the knob to adjust volume level Push to select VOL BAS TRE BAL FAD Rotate the knob to adj...

Page 8: ...ing upward Insert the battery holder into the remote control 1 Pull out the battery holder while pressing the stopper Replacing the lithium battery of remote control unit When the operation range of the card remote control becomes short or no Properly replace the lithium battery with a new one Make sure the battery polarity replacement is correct CR 2025 WARNINGS REMOTE CONTROLS Store the battery ...

Page 9: ...seconds each Hold more than 2 seconds the 6 strongest available station will be automatically saved in the memory of preset button AMS Auto Memory Store SEARCH Press DISP button time displays Press again more than 2 seconds time display blinks Rotate the knob clockwise to set hours Rotate the knob anticlockwise to set minutes SET CLOCK DN VOL UP DISP Press the button more than 2 seconds to enter m...

Page 10: ...SEL button once again And rotate the knob to set the tenth digit of the track number Press SEL button again more than 0 5 seconds to play the track IF your desired track number is more than 100 Rotate the knob to select the hundredth digit and press SEL button to confirm Rotate the knob to select the tenth digit and press SEL button to confirm Rotate the knob to select the first digit and press SE...

Page 11: ...in the correct direction and the label side up Clean disc or change another disc Disc is inside but no sound Much noise in broadcasts Station is too far or signals are too weak Select other stations of higher signal level Preset station lost Battery cable is not correctly connected Connect the battery cable to the terminal that is always live Disc sound skips tone quality is low Disc is dirty or d...

Page 12: ...ront Cabinet Remove 2 pcs screw from front cabinet Remove the screw on the left side of the cabinet Loosen 8 screws to remove heatsink top cover bottom cover Remove the 2 pcs screw to dismantle the frame Remove 6 pcs screw on the main board Pull out FPC wire Remove the two connectors from the mainboard Remove the 2 pcs screw to dismantle the frame Remove the screw on the right side of the cabinet ...

Page 13: ...2 2 DISMANTLING INSTRUCTIONS 2 2 Service Position A Service Position B Service Position C Service Position D ...

Page 14: ...m p Offset Adjust TZC Gen Tracking Error RW I V AMP RF Focus E rror CD RW I V A MP Hardware Logic Auto Sequencer Fast Search Febias Focus Servo Tracking Offset A DJ Tracking Balance Gain A djust Interruption Detect EFM Muting S ystem S led Servo Kick Gen Spindle S ervo LPF E FM Comparator Micom Data Interface Logic Decoder Focus Servo Loop Gain P hase Compensation Focus Search Offset Adjust FZC Ge...

Page 15: ...4 4 SET WIRING DIAGRAM ...

Page 16: ...6 1 6 1 SERVO BOARD TABLE OF CONTENTS Circuit Diagram 6 2 PCB Layout 6 3 6 4 Electrical Parts List ...

Page 17: ...6 2 6 2 SERVO BOARD CIRCUIT DIAGRAM ...

Page 18: ...6 3 6 3 SERVO BOARD LAYOUT DIAGRAM TOP VIEW SERVO BOARD LAYOUT DIAGRAM BOTTOM VIEW ...

Page 19: ... 50V 5 SMT 0603 CC0 033 F 50V 20 SMT 0603 CC 390PF 50V 10 SMT 0603 CC0 47 F 25V 80 20 0603 CC 0 068 F 50V 20 SMT 0603 CC 820PF 50V 10 SMT 0603 ZENER DIODE 4 7V 1 2W SMT 1206 TR S8550 SMT SOT 23 IC DRAM 4MX4 TSOP 3 3V IC S1L9226 IC IP4001D IC S5L9276 IC S5L9291X100 TQFP 1414 SAM SUNG CD ESP MP3 SB D S 4 IN 1 15PIN FPC SOCKET PITCH 1 0MM RMF 330K 1 16W 5 SMT 0603 Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω ...

Page 20: ...8 1 8 1 EXPLODED VIEW MAIN UNIT ...

Page 21: ...de stopper Screw M2 6 5 Front U bracket Mut Screw M3 8 Screw PAM2 8 Ni Deck front bracket PRT For CMU501 Servo board ass y CD DECK CL C01FY6 Screw Pw M2 4 color Zn Top cover Deck Rear Bracket For CM700 Screw M2 6 3 Screw M2 6 7 Plating nickel BTS screw M2 6 10 Pole Rubber Screw BTS M2 6 14 Ni Short sheet Ant socket W GND L230mm Screw M2 6 21 Heat sink For CM700 Rear U bracket Bracket IC7386 Main b...

Page 22: ...www mobiteh com ...

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