Toshiba SDK-615, SD-2805, SD-3805 Service manual
SERVICE MANUAL
DVD VIDEO PLAYER
SD-K615
FILE NO. 810-200204
SD-3805
SD-2805
MAY, 2002
3-12
BLOCK DIAGRAMS
1. Overall Block Diagram
M
M
DISC
SPINDLE
MOTOR
LOADING
MOTOR
DECK MECH ANI SM
CD: A,B, E, F
DVD: A,B,C,D,
DVD; RF
CD: A,B, E, F
DVD: A,B,C,D,
DVD; RF
PICK
UP
IC203
DRAM
16bit
16M
IC201
HDC25D811B
DSP II
IC501
PANTERA
IC901
GMS812012
FL DISPLAY
KEY Input
REMOCON
RECEIVER
6MHz
X-TAL
Pb
IC301
CPLD
I/O PORT 72
IC305
SDRAM
64M
IC305
EEPROM
IC2M1
KA3031
MOTOR
DRIVER
IC2A1
HD153702TF
RF
ICDATA
[00:15]
ICADD
[0:8]
LOADING
FOCUS,TRA CK IN G,SLED
SPI ND L E
MI RR,TZC,PI,TE
FE,DFECT_ IN
RFO
SCLK,SDATA
SCOR,SQCK,SQSO
XLAT,E_STI,E_ENB,E_DR
RF_XLAT , LDON
IC401
CS4391
2DAC
XIO1,XIO2
,XIO10
F_CLK
F_OUT
PCMCLK
SPINDLE_FG
MSDATO
MDP1
FOK
DEFECT
DSP_SENSE
LOCK
E_SOUT
ZISENB
/XRST
DA C_RST
16
:9,PAL_SW,AUTO_SW,MIC_ON
Y_SEL
/A_MUTE
/DAC_CS1
/DAC_CS2
V_MUTE
DAC_CLK
DAC_OUT
ADCCLK
ACT_MUTE , LOAD_OPEN , LOAD_CLOSE
MIRR
AD[00:19]
PSEN B
FLD
/FLD_CS
FLD_CLK
FLD_OUT
/FLD_CS
COMM_CLK
COMM_OUT
CPLD
EE_CS , EE_CLK , EE _OUT
F_IN
IC306
FLASH
ROM
F_IN
/MRESET
/FLASH_CS , /RDPWE O
LA0
LA1
LA2
LA3
AD[04:19]
MD[00:31]
MCLK2
CKE
MA[00:10]
MA12,13
/CS0
/RAS
/CAS
/WE
DQM0`3
REQP
SDCLKI , PSYNC
DVD[1:7]
DSP_INT
SENSE
/DSP_CS
LRCK
DAC-CS
AOUT3
L
Composi te
FILTER
Y
Pr
SW602
Video SW
CVBS/Pr/R , C/Pb/, Y/G
Y
C
L/R
-VF
AC 120V,
60Hz
POWER
BOARD
-VF
-27VA
+8V
+5.2VA
+5V_D
+5V_A
+12V_A
+3.3V_M
AD[0:7]
LADD4~5 , LA0~3
AD[00:15]
MDP,FDO,TDO,FMO,MON
OPEN_SW
CLOSE_SW
LIMIT_SW
CPLD
SBA D D ,
27MHz
X-TAL
33.8688MHz
X-TAL
+3.3V
+3.3V_MI
POWER_CTL
/SRST
R
AMP
3-13
2. Power(SMPS) Block Diagram
5V_D
5V_A
-27VA
VF+
RECTI FIER
LINE FILTER
SWITCHING TR
TRANS
FEED B.
REG(8V)
8V
5.2VA
VF-
RECTIFIER(FLD)
RECTIFIER(9V)
RECTIFIER(5.2V)
LPF
LPF
RECTIFIER(14V)
LPF
12V_A
AC120V
PWR ON/OFF
REG(3.3V)
REG(3.3V)
3.3V_MI, 3.3V
3.3V,3.3V_M
RECTIFIER(3.8V) LPF
REG
(12V)
3-14
88
SENS, FOK, SLD_FG,
MSDAT0, DEFECT,DSP_SENSE
IC2M1
KA3031
SpindleMotor,LoadingMotor ,
Actuator Driver
CD: A,B,C,D / E, F
44
44
MIRR,TZC
88
55
33
33
SQSO, SQCK,
SCOR
SCOR
66
XLAT, S_CLK, S_DATA
UCOM
I/F
focus, tracking, loading, sled
Spindle
M/D
PICK
UP
MCK
IC201
HDC25D811B
CD / DVD DSP
DVD SERVO
IC2A1
HD153702TF
RF Signal
Processor
FDO,TDO,FMO
Load open/close(loading control)
UCOM
I/F
DVD: A,B,C,D,
FE,TE,PI,SBADD
44
DVD/CD RF
IC203
SDRAM
16
9
ICADDR[0:8]
ICDATA[00:15]
DO[0:7]
AO[0:5]
DVD_DATA[0:7]
MON,MDP
SPINDLE_FG
MPEG
I/F
22
DSP_CS, /WR, /RD33
88
3. RF/CD DSP/DVD DSP/DVD SERVO Block Diagram
3-15
4. Audio Block Diagram
IC401
CS4391
Audio DAC
IC402
LPF & Buffer
NJM4580D
OP AMP
L
R
U-COM
I/F
A_0WT3
/SRST
DAC
COMM_DATA
COMM_CLK
DAC_CS
LRCK
DA_BCK
DA_XCK
L
R
MPEG
I/F
3-16
5. MPEG Block Diagram
IC501
PANTERA
IC301
CPLD
I/O PORT 72
IC305
SDRAM
64M
IC502
EEPROM
IC3F1
FLASH
MEMORY
AD[0:7] 8
DSP
I/F
DVD[0:7]
8
LA[0:3]
4
SCLK,SDATA
SQCK,SQS0
REQP
SDCLK1,PSYNC
DSP_INT
SENSE
/DSP_CS
AD[00:19]
RF &
MOTOR
I/F
MIRR
LDON
S
C
L
K
,
S
D
A
T
A
EE_CS
F_IN
32
MD[00:31]
MCLK2
CKE
MA[00:10]
MA12,13
/CS0
/RAS/
/CAS
/WE
/DQM[0:3]
SPINDLE_FG
LA[0:3]
4
AD[00:15]
16
AUDIO
I/F
DA_DATA
DA_BCK,DA_LRCK,DA_XCK
DAC_L0,DAC_L1
DAC_RST
A/V
JACK
I/F
C/R(B)
CVBS/G(R)
Y/B(G)
CVBS
V_MUTE,16:9
ZISENB
/RD
/PWED
3-17 3-18
NOTES) Warning
NOTES) Parts that are shaded are critical
NOTES) With respect to risk of fire or
NOTES) electricial shock.
R1A1
56(2W)
SD-3805/2805/K615
'02. 03. 19 R14140A
CIRCUIT DIAGRAM
1. POWER(SMPS) CIRCUIT DIAGRAM
NOTE :
1. Shaded( ) parts are critical for safety. Replace only
with specified part number.
2. Voltages are DC-measured with a digital voltmeter
during Play mode.
Oscillation abnormal
Digitron no Power
3.3V line dead.
No Power
8V line dead
5V_A/5V_D, No Power
No Power
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