Read Harman Kardon CDR 20 (serv.man18) Service Tips online
LG Electronics DAV Engineering LAB.
I / V AMP
I / V AMP
I / V AMP
RF Amplifier
(CXA2581N :Sony)
• Equalizer
• ALPC
• Focus Error
• Tracking Error
• ALPC
• Focus Error
• Tracking Error
LD
LD
Driver
Driver
-Controller
(H8/3062:Hitachi)
• System Control
• Read Channel
• Servo Processor
• Sled Servo
• Read Channel
• Servo Processor
• Sled Servo
MOTOR
DRIVE
(LB11995H
:SANYO)
Spindle
motor
Stepping
Stepping
Sledmotor
Sledmotor
Pick
Pick
-
-
up
up
(SF
(SF
-
-
P151EXV
P151EXV
:Sanyo)
:Sanyo)
disc
Digital Servo Processor
(CXD 3011R:Sony)
• Focus Servo
• Tracking Servo
• Spindle Servo
• EFM decoding
• Tracking Servo
• Spindle Servo
• EFM decoding
• CD-DA Decoder
• ATAPI Interface
• 1Mbit DRAM
• 1bit DAC
• 1Mbit DRAM
• 1bit DAC
CDR
-Controller
RMC-IN
F.FRV
T.DRV
SP.DRV
T.DRV
SP.DRV
F,T,SL,LOAD
DRIVE
(M56788
:MITSUBISHI)
S/W
(BU4053
:
ROHM
ROHM)
REC-CLK
REC-TXD
RW-CLK
RW-RXD
CD
CD
-
-
R
R
LRCK
DATA
BCLK
DATA
BCLK
I/O
I/O
LEVEL METER
LRCK
DATA
BCLK
MCLK
DATA
BCLK
MCLK
FRONT
FRONT
AD-Data
KEY Scan
KEY Scan
CS
BLK
CLK
TXD
BLK
CLK
TXD
CD D-OUT
Block Diagram of CDP [CDR 20]
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