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LG CM9540 [64/85] Front 385w x 2 surr 385w x 2 woofer 385w x 2
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3-45 3-46
2. MAIN SYSTEM BLOCK DIAGRAM
LC78615ERF+ SERVO
AM5890
Motor Drive
A,B,C,D,E,F,P
D
LD
USB_HUB_DP/DN
CS5346
MLC3730
MCS LOGIC
SPDO/SLDO/FOD/TRD
LOAD±,SLED±,
SPIN±,TR±,F±
OP_SW,CL_SW,UP_SW,DN_SW,D_SENSE
MOT_MUTE,CLOSE,OPEN
ADC_DATA
DAC_MCLK
/BCK/LRCK
PT_L/R
AUX_L/R
AUX
USB1
Portable
CD_DIN_DOUT
CD_R/W,
BUSY,CD_16M
,
SUBSYQ,
CD_RST
CD_MCK/BCK
/LRCK/DATA
TUNER_L/R
USB2
TUNER
FRONT
MICOM
R5F100GEAFB
VFD_STB/CLK/DO/RS T
STANDBY_LED,VOL_LED,
VFD_LED/REMOCON
USB_PWR_CTRL/VOL_A/B/
KEY1,2,3
E2PROM_CLK/DATA
TAS5548
PWM
FL±
RL±
DRIVER
IRS2092
(x 4EA)
Front : 385W x 2
Surr : 385W x 2
Woofer : 385W x 2
16.9344MHz
VFD
DIG301
IR
Receiver
LED_CTRL, FILE A/B,
SCRATCH A/B FAN CTRL,
MIC_VOL A/B
Volume/
Key
32.768KHz
MCU_CS/MCU_
RST
MUC_TX/RX
MIC_O_DATA0
(+3.3V)
(+3.3V_UCOM)
(+3.3V_CD, VCC1.2)
(+5V)
(+3.3V_RF,+3.3V_CD,+1.8V)
(+3.3V_USB)
(+5V,
+3.3V_ADC)
(+3.3V)
M
P/UP
DECK
MECHANISM
(VCC50)
12.288MHz
FR±
RR±
SW
DAC IC
AZ4580
DAC IC
AZ4580
DAC IC
AZ4580
FL
RL
FR
RR
SW
FET
IRF6775
(x 12EA)
FL
RL
FR
RR
SW1
SW2
FL
RL
SW1
SW2
I2C/EXT_MUTE/RST
PWM_MCK/BCK/
LRCK
SPENA
AGL_F/R
AGL_SW
PROTEC / SD/
DCP
OTW
TH
FAN_CTL
AMP_OSC
MCS Interface
128Mbit
SDRAM
8MByte
Serial Flash
(+3.3V_CD)
(+3.3V_CD)
CLK/DAT/CE/RST /GP O2
S4308
MIC
MIC_SIG0
MIC_SIG
(+5_MIC)
MIC_DET
MIC CODE C
ADC CODE C
BT
BT_RX, BT_CTS
EEPROM
24MHz
FL1
FL2
Содержание
291- Service manual
- Cm9540
- Mini hi fi system
- Contents
- Section 1
- Contents
- Specification
- Servicing precaution
- Service information for eepro
- Program download update guid
- Hidden key mod
- Esd precaution
- Summary
- Repair notes
- Servicing precautions
- Notes regarding handling of the pick up
- Notes for transport and storage
- Notes for repair
- Preparations
- Notes regarding compact disc player repairs
- Esd precautions
- Electrostatically sensitive devices esd
- Caution graphic symbols
- Bluetooth dut
- Amp clip on off
- Edit eeprom
- Disc lock on off cd function only active
- Clear eeprom
- Check version and option code
- Push both front key and rcu key to activate it for 5 seconds
- Power disc lock on off cd function only active
- Hidden key mode
- Power on
- Service information for eeprom
- Remote control front stop push same timing during 5 seconds
- Remote control front stop push same timing
- Press stop key
- Move to appropriate position and make changes with remote control repeat
- Fld write ok
- Fld op0
- Fld no disc status
- Fld e2p clr
- Completed
- Program download update guide
- On vfd display screen
- Audio program
- On vfd display screen
- Cd program
- On vfd display screen
- Demo program
- On vfd display screen
- Eq program
- Specifications
- Section 2
- Exploded view
- Contents
- Cabinet main chassis
- Exploded views
- Cabinet and main frame section cm9540
- Mechanism deck section dp17tm2
- Packing accessory section
- Speaker section
- Left speaker
- 1 front speaker cms9540f
- Right speaker
- Front speaker cms9540f
- 2 subwoofer speaker cms9540w
- Section 3
- Electrical
- Contents
- No power
- 1 fuse bridge diode thermistor
- 1 2 how to troubleshoot countermeasure
- If the unit doesn t work by no power problem repair the set according to the following guide
- 1 3 service hint any picture remark
- 1 1 solution
- One point repair guide
- 2 no amp power
- One point repair guide
- No power
- If the unit doesn t work by no pvdd problem repair the set according to the following
- 1 micom ic501
- The set doesn t work when press the power button on the front board or the remote control
- One point repair guide
- No booting when power on the set
- 1 3 service hint any picture remark
- 1 2 how to troubleshoot countermeasure
- 1 1 solution
- 1 vfd dig300
- 1 3 service hint any picture remark
- 1 2 how to troubleshoot countermeasure
- 1 1 solution
- When power on the set any icons or characters on vfd are not displayed
- Vfd is not displayed when power on the set
- One point repair guide
- One point repair guide
- No booting in cd usb function
- One point repair guide
- No booting in cd usb function
- Cd or usb on vfd it will not display other message on vfd and it will not boot up normally
- 2 crystal x500
- 2 3 service hint any picture remark
- 2 2 how to troubleshoot countermeasure
- 2 1 solution
- 3 3 service hint any picture remark
- 3 2 how to troubleshoot countermeasure
- 3 1 solution
- One point repair guide
- No booting in cd usb function
- Cd or usb on vfd it will not display other message on vfd and it will not boot up normally
- 3 serial flash ic503
- 4 3 service hint any picture remark
- 4 1 solution
- One point repair guide
- No booting in cd usb function
- Cd or usb on vfd it will not display other message on vfd and it will not boot up normally
- 4 sdram ic502
- 4 2 how to troubleshoot countermeasure
- One point repair guide
- No booting in cd usb function
- Cd or usb on vfd it will not display other message on vfd and it will not boot up normally
- 5 dsp ic ic501
- 1 spindle motor
- When no sound output in the cd function you can not listen to music reading data from a cd disc if the servo motors in md don t work this step is for checking the spindle motor among them
- One point repair guide
- No operation of md driving the servo motors
- When no sound output in the cd function you can not listen to music reading data from a cd disc if the servo motors in md don t work this step is for checking the sled motor among them
- One point repair guide
- No operation of md driving the servo motors
- 2 sled motor
- One point repair guide
- No operation of md driving the servo motors
- When no sound output in the cd function you can not listen to music reading data from a cd disc if the pickup module in md doesn t work this step is for checking the laser tracking actuator
- One point repair guide
- No operation of md driving the servo motors
- 5 1 solution
- 4 laser tracking actuator
- 4 3 service hint any picture remark
- 4 2 how to troubleshoot countermeasure
- When no sound output in the cd function you can not listen to music reading data from a cd disc if the pickup module in md doesn t work this step is for checking the laser focusing actuator
- One point repair guide
- No operation of md driving the servo motors
- 5 laser focusing actuator
- 5 3 service hint any picture remark
- 5 2 how to troubleshoot countermeasure
- 5 1 solution
- No sound
- There is no sound output in the usb function repair the set according to the following
- One point repair guide
- 1 in the usb function
- No sound
- 2 in the aux function
- 2 3 service hint any picture remark
- 2 2 how to troubleshoot countermeasure
- 2 1 solution
- There is no sound output in the aux function repair the set according to the fol lowing guide
- One point repair guide
- There is no sound output in the port in function repair the set according to the following guide
- One point repair guide
- No sound
- 3 in the port in function
- 3 3 service hint any picture remark
- 3 2 how to troubleshoot countermeasure
- 3 1 solution
- There is no sound output in the tuner function repair the set according to the following guide
- One point repair guide
- No sound
- 4 in the tuner function
- 4 3 service hint any picture remark
- 4 2 how to troubleshoot countermeasure
- 4 1 solution
- There is no sound output in the mic in function repair the set according to the following guide
- One point repair guide
- No sound
- 5 in the mic in function
- 5 3 service hint any picture remark
- 5 2 how to troubleshoot countermeasure
- 5 1 solution
- There is no sound output in the bluetooth function repair the set according to the following guide
- One point repair guide
- No sound
- 6 in the bluetooth function
- 6 3 service hint any picture remark
- 6 2 how to troubleshoot countermeasure
- 6 1 solution
- 1 2 how to troubleshoot countermeasure
- 1 1 solution
- One point repair guide
- Audio signal output is small or not when you power on the middle power mini system
- Audio output is small or no audio output
- 1 ic700 ic705
- 1 3 service hint any picture remark
- No power on standby led is blinking
- One point repair guide
- It doesn t turn on and blinks standby led red
- 1 amp fets
- 1 3 service hint any picture remark
- 1 2 how to troubleshoot countermeasure
- 1 1 solution
- Speaker no audio
- 1 amp ic
- 1 3 service hint any picture remark
- 1 2 how to troubleshoot countermeasure
- 1 1 solution
- One point repair guide
- Power supply on smps board
- Electrical troubleshooting guide
- Electrical troubleshooting guide
- Electrical troubleshooting guide
- Electrical troubleshooting guide
- System part
- Electrical troubleshooting guide
- No audio part
- Electrical troubleshooting guide
- Electrical troubleshooting guide
- Electrical troubleshooting guide
- Electrical troubleshooting guide
- Electrical troubleshooting guide
- Electrical troubleshooting guide
- No lighting woofer speaker
- Waveforms of major check point
- Waveform of servo
- Figure 1 1 cd 16m ic407 pin31 figure 1 2 servo fe te fod rf ic407 pin61 62 63 ic408 pin1
- Waveform of motor drive
- Waveform of audio signal
- Waveform of adc 5 waveform of usb
- Waveform of vfd grid current driver
- Waveform of crystal 7
- Wiring diagram
- P 1 5mm
- Mic portable
- Block diagrams
- Front 385w x 2 surr 385w x 2 woofer 385w x 2
- Vfd dig301
- Dac ic az4580
- Tas5548 pwm
- Cs5346
- S4308 mic
- Am5890 motor drive
- Portable
- Mlc3730 mcs logic
- Micom r5f100geafb
- Mbyte serial flash
- Mbit sdram
- Main system block diagram
- Lc78615erf servo
- Ir receiver
- Fet irf6775 x 12ea
- Eeprom
- Driver irs2092 x 4ea
- Volume key
- Deck mechanism
- Main power block diagram
- Smps power 1 circuit diagram
- Circuit diagrams
- 49 3 50
- Smps power 2 circuit diagram
- 51 3 52
- Main cd dsp circuit diagram
- 53 3 54
- Main rf servo circuit diagram
- 55 3 56
- Main adc pwm circuit diagram
- 57 3 58
- Main amp circuit diagram
- 59 3 60
- 61 3 62
- Front volume circuit diagram
- Mic portable circuit diagram
- 63 3 64
- Front speaker main circuit diagram
- 65 3 66
- 67 3 68
- Front speaker sub circuit diagram
- Woofer speaker main circuit diagram
- 69 3 70
- Woofer speaker sub circuit diagram
- 71 3 72
- Connectors 2 capacitors
- Circuit voltage chart
- 73 3 74
- Smps p c board
- Printed circuit board diagrams
- Top view
- Top view
- Main p c board
- Bottom view
- Main p c board
- Front volume p c board
- Woofer speaker sub p c board
- Woofer speaker main p c board
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