DOWNLOAD Harman Kardon CDR 25 (serv.man4) Service Manual ↓ Size: 10.14 MB | Pages: 80 in PDF or view online for FREE

Model
CDR 25 (serv.man4)
Pages
80
Size
10.14 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cdr-25-sm4.pdf
Date
PREV: Harman Kardon CDR 25 (serv.man3) Info Sheet

Harman Kardon CDR 25 (serv.man4) Service Manual ▷ View online

45
•Check the connection of IC310 pin 13.
•Check and replace the IC207. 
•Check the connection lines of IC201.
•Check and replace the IC201. 
•Check the connection lines of IC207.
•Check and replace the IC207. 
•Check the connection lines of
IC207 pin 21,18.
•Check and replace the IC207. 
YES
Are
IC207 pin29(EFM1),
30(EFM2), 42(RESAMP1), 2(RESAMP2),
41(ROPC1) pulse signals? 
Are
IC301 pin 31(WFPDSH), 
32(RFPDSH),33(WBLSH),
34(SPDSH), 35(MPDSH)
pulse signals? 
Are
PN301 pin30(ODON)
31(W/XR) pulse signals?
IC207 Pin 27(WGATE)=“H”?
YES
IC207 Pin 46(WLDON)=“H”?
YES
IC207 Pin 33(CDR/RW)=“L”?
IC207 Pin 34(CDR/R/W)=“H”?
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
Execute ‘E. LD On’ of ‘How to
use Test Tool(Dragon)’: ‘CD-RW
Recording Mode’
K
Dragon : Execute LD ‘off’
Dragon : Execute LD ‘Off’
•Check the connection of IC320 pin 20.
•Check and replace the IC203. 
•Check the connection of IC320 pin 7.
•Check and replace the IC203. 
•Check the connection of IC301 pin 166.
•Check and replace the IC301. 
Normal
46
NO
IC203 Pin 20(CDR/RWS)=“H”?
YES
YES
IC203 Pin 80(BLEVEL0):
2+/-1.0V?
YES
BETA Measurement circuit ceck
IC301 Pin 82(RRF):3+/-1.0V?
RRFIN:2+/0.7V?
(IC301 PIN81)
NO
NO
NO
YES
After inserting Test Disc(TCD-784),
start playing.
K
•Check the connection of IC301 pin 82.
•Check and replace the IC301
(CXA3558R).
•Check 81pin IC301 and replace
the IC301. 
•Check the connection of IC203 pin 20.
•Check and replace the IC320(MICOM). 
•Check the connection of IC301 pin 88.
•Check and replace the IC301. 
-47-
WAVEFORM(I/O)
WAVEFORM(RW)
1. IC7V1(DAC) Pin1(MCLK), Pin2(BICK), Pin3(SDTI), Pin4(LRCK)
MCLK Pin 1
BICK Pin 2
SDTI Pin 3
LRCK Pin 4
PAUSE
MCLK Pin 1
BICK Pin 2
SDTI Pin 3
LRCK Pin 4
PLAY
_ PLAYBACK MODE
WHEN PLAY MODE
7. IC703 Pin6(R-in), Pin7(L_in), Pin5(Level Select), Pin1(A_LEVEL_IN)
R-IN Pin6
L-IN Pin7
LEVEL_SEL Pin5
LEVEL_IN Pin1
PAUSE
PLAY
R-CHANNEL PLAY
_ AUDIO LEVEL METER
6. IC706 Pin10(Optical in)
PAUSE
PLAY
WHEN PLAY MODE
2. IC7VA(DAC) Pin9, Pin10,
Pin11, Pin12 OUTPUT PIN
3. IC704(OP-AMP) Pin3(input),
Pin2(input), Pin1(output)
AOUTR- Pin 9
AOUTR+ Pin 10
AOUTL- Pin 11
AOUTL+ Pin 12
Pin 3(R-CHANNEL)
Pin 5(L-CHANNEL)
Pin 2(R-CHANNEL)
Pin 6(L-CHANNEL)
Pin 1(R-CHANNEL)
Pin 7(L-CHANNEL)
FE
MPXO
DISC DETECTION
IC301 PIN58(FE), PIN19(MPXO)
FE
BS
TOC
IC301 PIN58(FE), IC201 PIN201(BS)
FE
BS
PLAY /  STOP
IC301 PIN58(FE), IC201 PIN201(BS)
FE
FAO
TE
TAO
PLAY /  STOP
IC301 PIN58(FE), IC201 PIN207(FAO)
IC301 PIN57(TE), IC201 PIN208(TAO)
FE
TE
C2PO
TRACK JUMP
IC301 PIN58(FE), IC301 PIN57(TE)
IC201 PIN147(C2P0)
FE
C2PO
TE
PLAYBACK MODE (DEFECT DISC)
IC301 PIN58(FE), IC301 PIN57(TE)
IC201 PIN147(C2P0)
ATFG
ATFW
PLAYBACK MODE (CDDA DISC)
IC301 PIN23(ATFW), IC301 PIN30(ATFG)
FE
C2PO
TE
PLAYBACK MODE (R, RW DISC)
IC301 PIN23(ATFW), IC301 PIN30(ATFG)
4. IC7V2(ADC) Pin11(MCLK), Pin12(SCLK), Pin10(LRCK), Pin9(STDO)
MCLK Pin 11
SCLK Pin 12
LRCK Pin 10
SDTO Pin 9
PAUSE
_ EXT.RECORD(ANALOG) MODE
_ EXT.RECORD(OPTICAL) MODE
LRCK
SDTO
5. IC702(OP-AMP) Pin3(input), Pin2(input), Pin1(output)
Pin 3(L-CHANNEL)
Pin 5(R-CHANNEL)
Pin 2(L-CHANNEL)
Pin 6(R-CHANNEL)
Pin 1(L-CHANNEL)
Pin 7(R-CHANNEL)
MCLK Pin 11
SCLK Pin 12
LRCK Pin 10
SDTO Pin 9
PLAY
LRCK
SDTO
47
-47-
WAVEFORM(I/O)
WAVEFORM(RW)
1. IC7V1(DAC) Pin1(MCLK), Pin2(BICK), Pin3(SDTI), Pin4(LRCK)
MCLK Pin 1
BICK Pin 2
SDTI Pin 3
LRCK Pin 4
PAUSE
MCLK Pin 1
BICK Pin 2
SDTI Pin 3
LRCK Pin 4
PLAY
_ PLAYBACK MODE
WHEN PLAY MODE
7. IC703 Pin6(R-in), Pin7(L_in), Pin5(Level Select), Pin1(A_LEVEL_IN)
R-IN Pin6
L-IN Pin7
LEVEL_SEL Pin5
LEVEL_IN Pin1
PAUSE
PLAY
R-CHANNEL PLAY
_ AUDIO LEVEL METER
6. IC706 Pin10(Optical in)
PAUSE
PLAY
WHEN PLAY MODE
2. IC7VA(DAC) Pin9, Pin10,
Pin11, Pin12 OUTPUT PIN
3. IC704(OP-AMP) Pin3(input),
Pin2(input), Pin1(output)
AOUTR- Pin 9
AOUTR+ Pin 10
AOUTL- Pin 11
AOUTL+ Pin 12
Pin 3(R-CHANNEL)
Pin 5(L-CHANNEL)
Pin 2(R-CHANNEL)
Pin 6(L-CHANNEL)
Pin 1(R-CHANNEL)
Pin 7(L-CHANNEL)
FE
MPXO
DISC DETECTION
IC301 PIN58(FE), PIN19(MPXO)
FE
BS
TOC
IC301 PIN58(FE), IC201 PIN201(BS)
FE
BS
PLAY /  STOP
IC301 PIN58(FE), IC201 PIN201(BS)
FE
FAO
TE
TAO
PLAY /  STOP
IC301 PIN58(FE), IC201 PIN207(FAO)
IC301 PIN57(TE), IC201 PIN208(TAO)
FE
TE
C2PO
TRACK JUMP
IC301 PIN58(FE), IC301 PIN57(TE)
IC201 PIN147(C2P0)
FE
C2PO
TE
PLAYBACK MODE (DEFECT DISC)
IC301 PIN58(FE), IC301 PIN57(TE)
IC201 PIN147(C2P0)
ATFG
ATFW
PLAYBACK MODE (CDDA DISC)
IC301 PIN23(ATFW), IC301 PIN30(ATFG)
FE
C2PO
TE
PLAYBACK MODE (R, RW DISC)
IC301 PIN23(ATFW), IC301 PIN30(ATFG)
4. IC7V2(ADC) Pin11(MCLK), Pin12(SCLK), Pin10(LRCK), Pin9(STDO)
MCLK Pin 11
SCLK Pin 12
LRCK Pin 10
SDTO Pin 9
PAUSE
_ EXT.RECORD(ANALOG) MODE
_ EXT.RECORD(OPTICAL) MODE
LRCK
SDTO
5. IC702(OP-AMP) Pin3(input), Pin2(input), Pin1(output)
Pin 3(L-CHANNEL)
Pin 5(R-CHANNEL)
Pin 2(L-CHANNEL)
Pin 6(R-CHANNEL)
Pin 1(L-CHANNEL)
Pin 7(R-CHANNEL)
MCLK Pin 11
SCLK Pin 12
LRCK Pin 10
SDTO Pin 9
PLAY
LRCK
SDTO
48
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