DOWNLOAD Harman Kardon CDR 20 (serv.man18) Service Manual ↓ Size: 536.99 KB | Pages: 23 in PDF or view online for FREE

Model
CDR 20 (serv.man18)
Pages
23
Size
536.99 KB
Type
PDF
Document
Service Tips
Brand
Device
Audio
File
cdr-20-sm18.pdf
Date
PREV: Harman Kardon CDR 20 (serv.man17) Service Manual / Technical Bulletin

Harman Kardon CDR 20 (serv.man18) Service Tips ▷ View online

LG Electronics DAV Engineering LAB.
•
Block Diagram of ACDR [ CDR 20/30 ]
•
Signal Flow (CDR 30)
•
Signal Flow 1-1 (ADR-700)- Opt(Front & Back); 
Opt=HDCD or CDDA , CDP
=
Play
•
Signal Flow 1-2(ADR-700)- Opt/Coax(Front); 
Opt=HDCD or CDDA or MP3, CDP
=
Stop 
•
Signal Flow 2-1(ADR-700)- Coax(Front & Back); 
Coax=HDCD or CDDA , CDP
=
Play
•
Signal Flow 2-2 (ADR-700)- Coax (Front & Back); 
Coax =HDCD or CDDA or MP3 , CDP
=
Stop
•
Signal Flow 3(ADR-700)- Analog Input
•
Signal Flow 4-1(ADR-700)- Dubbing; 
CD-DA or HDCD
•
Signal Flow 4-2(ADR-700)- Dubbing; 
MP3
•
Signal Flow 5(ADR-700)- Dual PB; 
CDP=HDCD or CDDA or MP3 , CDRW=CD-DA only
•
Signal Flow 6-1(ADR-700)- Single PB; 
CDP Only(CD-DA, HDCD)
•
Signal Flow 6-2(ADR-700)- Single PB; 
CDP Only(MP3)
•
Signal Flow 7-1(ADR-700)- Single PB; 
CDRW Only(CD-DA, HDCD)
•
Signal Flow 7-2(ADR-700)- Single PB; 
CDRW Only(MP3)
CDR 20/30 SERVICE  GUIDE
LG Electronics DAV Engineering LAB.
•
Down Load Methode
LG Electronics DAV Engineering LAB.
Block Diagram of ACDR [CDR 20/30] 
FLD
DRIVER
FL DISPLAY
KEY Input
REMOCON
RECEIVER
5MHz
X-TAL
TIMER
RF
(CDR)
DSP
OTI9790
MICOM
(CDR)
20MHz
X-TAL
SRC
CS8420
RF
(CDP)
CDP DSP
CXD 3011
MICOM
(CDP)
20MHz
X-TAL
33MHz
X-TAL
B/DIODE
DAC
ADC
RELAY
TRANS
FEED/B
SWITCHING 
REGULATOR
VIDEIO OUT
BITCK
LRCK
DATA
BITCK
LRCK
DATA
F+
F-
-34V
8V
3.3V
5V
Analog IN
Optical IN
Coaxial IN
Coaxial 
OUT
Optical
OUT
Analog 
OUT
H/P OUT
Digital IN
CDR D-OUT
CD/DVD D-OUT
BITCK
LRCK
DATA
CD-P
POWER
I/O
MCK
Spindle
driver
BA6664
FO,TR,SLED
driver
BA5983/5925
DAC
M62352
Focus
Tracking
Sled
Spindle
driver
KA3032
DRAM
256X16
DRAM
16M
DRAM
256X16
CDR
FPGA
[ASIC]
CDP
FPGA
[ASIC]
LG Electronics DAV Engineering LAB.
I / V AMP
I / V AMP
I / V AMP
RF Amplifier
(CXA2581N :Sony)
• Equalizer
• ALPC 
• Focus  Error
• Tracking Error
LD
LD
Driver
Driver
-Controller
(H8/3062:Hitachi)
• System Control
• 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
• CD-DA Decoder
• ATAPI Interface
• 1Mbit DRAM
• 1bit DAC
CDR 
-Controller
RMC-IN
F.FRV
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
I/O
I/O
LEVEL METER
LRCK
DATA
BCLK
MCLK
FRONT
FRONT
AD-Data
KEY Scan
CS
BLK
CLK
TXD
CD D-OUT
Block Diagram of CDP [CDR 20] 
LG Electronics DAV Engineering LAB.
Block Diagram of CDR [CDR 20] 
I / V AMP
I / V AMP
RF Amplifier
(CXA2551R:Sony)
• Equalizer
• ALPC 
• Focus  Error
• Tracking Error
• Wobble Detect
Spindle
Driver
(BA6664FM
: Rohm)
LD
LD
Driver
Driver
Encoder/Decoder
(OTI9790:OAK Technology)
• CD-Encode
• EFM Encode     
• CD-Decode
• LPM
• ATIP CLV Control 
• ATAPI I/F
Digital Servo Processor
• Focus Servo
• Tracking Servo
• Sled Servo
• Spindle Servo
• EFM decoding
ASIC
(VC00S01
,XC10TQ80)
•Switching
•Serial to Parallel
Data convertion
-Controller
(HD84F/3062:Hitachi)
• System Control
• Read Channel  
• Data Processor   
• Servo Processor
• ATAPI Control
Focus Tracking
Sled Driver
(BA5983FM : Rohm)
Spindle
motor
Sled
Sled
motor
motor
Pick
Pick
-
-
up
up
(KRS
(KRS
-
-
220C
220C
:Sony)
:Sony)
disc
CPLD
CPLD
(XC9536 : XILINX)
(XC9536 : XILINX)
Laser CTL
Laser CTL
S/H Signal Gen.
S/H Signal Gen.
Audio DAC
Audio DAC
L/R
L/R
-
-
CH Jack & 
CH Jack & 
Headphone
Headphone
SRC
(CS8420:
Cirrus Logic)
• 8kHz to 96KHz
• 120dB Dynamic
Range
CDP
D-out
I/O Board
Audio ADC
Audio ADC
Digital in
Digital in
L/R
L/R
-
-
CH Jack & 
CH Jack & 
Optical Jack
Optical Jack
I/O Board
CDP
A/Data
S-data
To CDP:I/F
12 CH 8bit DAC
(M62352)
Sled Speed
(BA5925)
Page of 23
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Harman Kardon CDR 20 (serv.man18) Service Tips ▷ Download

  • DOWNLOAD Harman Kardon CDR 20 (serv.man18) Service Manual ↓ Size: 536.99 KB | Pages: 23 in PDF or view online for FREE
  • Here you can View online or download the Service Tips for the Harman Kardon CDR 20 (serv.man18) in PDF for free, which will help you to disassemble, recover, fix and repair Harman Kardon CDR 20 (serv.man18) Audio. Information contained in Harman Kardon CDR 20 (serv.man18) Service Tips (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.

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