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FILE NO. 810-200216
SERVICE MANUAL
DVD VIDEO PLAYER
SD-420EB
SD-420EE
JULY, 2002
DISC
EE_CS , EE_CLK , EE _OUT
LADD
[04:19] I C3F1 I C502
DVD: A,B,C,D, IC304
DVD; RF IC2A1 MIRR FLA SH 93C56
CD: A,B, E, F ROM SDRAM
PICK Hd153702TF RF_XLA T , LDON EEPROM
SPINDLE 16/32BIT
M UP
MOTOR RF /FLD_CS I C301 64M
FLD_CLK LA 0
FLD_OUT
XC9572VL
AD[
LA 1
FLD
00 LA 2
:
CPLD 15 LA 3
]
LOADING I/O PORT 72
MOTOR MSDATO
MDP1 /XRST
1. Overall Block Diagram
FOK
BLOCK DIAGRAMS
M DEFECT
DECK M ECHANI SM
DSP_SENSE
PWEO
LOCK 16
:
OPEN_SW
E_SOUT XI O1,XIO MCLK2 9
CLOSE_SW ZISENB ,XIO10 CKE
FE,DFECT_IN
SBADD , RFO
AD[
CPLD
FOCUS,TRACKI NG,SLED
/SRST MA[00:10]
MIRR,TZC,PI,TE
LI MIT_SW 04
:
F_CLK MA12,13
PSENB
21
]
F_OUT /CS0
XLAT , E_STI , E_ENB , E_DR
PCMCLK /RAS Y_SEL
/A_MUTE
/FLASH_CS , /RD
ALE /CAS
SCLK,SDATA /WE /DAC_CS1
DQM0` 3 /DAC_CS2
; SCOR,SQCK,SQSO
V_MUTE
I C206
DAC_RST
33.8688MHz MD[00:31] DAC_CLK
SPINDLE
LOADING
X-TAL I NVER REQP DAC_OUT
TER ADCCLK
, PAL_SW , AUTO_SW , MIC_ON
SDCLKI , PSYNC
I C201 F_IN
DVD[ 1:7]
3-12
MDP,FDO,TDO,FMO,MON
DSP_
INT IC 501
IC2M 1 HDC25D811
ICADD
SENSE
KA 3032 I C203 [0:8] CD / DVD DSP PANTERA
SDRAM /DSP_
CS
MO TOR F_IN MI C
16bit LADD4~5 , LA0~3
LE / PLUS DA_AI N
DRI VER 16M ICDATA I C401/451
[00:15] AD[0:7] AOUT0~3
CS4391
ACT_MUTE , LOAD_OPEN , LOAD_CLOSE
SPDIF
PCM 1603KY
SPINDLE_FG ACLK
LRCK
FR WOOFER
POWER_CTL L/R RR
RL FL CENTER
F_IN 27MHz SW602
/MRESET X-TAL S.OUT / COM P.OUT
/FLD_CS CVBS/Pr/R , C/Pb/ , Y/G
FLD_CLK SWICHI NG
FLD_OUT VI DEO SW
CPLD
-VF I C901 CVBS
-VF FIL TER
GM S1C2012 AM P
-24VA FL DI S PLA Y REM OCON
+8V FROM RECEI VER
AC 240V, POWER +12VA Y Pr Pb Y RR FR
L/R
60Hz +5.2VA C RL FL WOOFER
Composite
BOARD CENTER
+5V_D 6MHz
+5V_A X-TAL
+3.3V_M1
+3.3V/3.3V_M KE Y Input
DV5000's
F+
F-
RECTIFIER(FLD )
-29VA
RECTIFIER(14V) LPF 12VA
TRANS
8V
RECTIFIER
RECTIFIER(9V) LPF REG(8V)
2. Power(SMPS) Block Diagram
SWITCHING TR
5.2VA
RECTIFIER(5.2V) LPF 5V_D
3-13
5V_A
3.3V/3.3V_M
REG(3.3V)
FEED B .
LINE FIL TER
REG(3.3V) 3.3V_M1
AC90~240V
PWR ON/OFF
DV5000's
SENS, FOK, SLD_FG,
5 MSDAT0, DEFECT,DSP_SENSE
DVD: A,B,C,D, 4 3 SQSO,SQC SCOR
K,
PICK
UP FE,TE,PI,SBADD 4 3 XL AT , S_CL K, S_DATA
CD: A ,B,C,D / E, F 4
UCOM
3 DSP_ /WR, /RD
CS,
IC2A1 IC206 I/F
DVD/CD RF
HD153702TF HDC25D811 8 DO[ 0:7]
MIRR,TZC 2
RF Signal CD / DVD DSP 6 AO[0 :5]
Process or DVD SERVO
8 DVD_DATA[0: 7]
8
MPEG
MCK I/F
9
16
ICADDR[0:8]
MON,MDP ICDAT A[ 00:15]
3-14
IC203
1M x 16bit
FDO,TDO,FMO
IC2M1 SDRAM
KA3082
SpindleMotor, LoadingMotor,
Spi ndle
Actuator Driver
M/D
3. RF/CD DSP/DVD DSP/DVD SERVO Block Diagram
fo cus, tracking, loadi ng,sled SPINDLE_FG
UCOM
L oad open/close(loading control) I/F
DV5000's
DAC_RST
S_DAT A
U-COM
S_CL K L+
I/F DAC_L0 IC402 L
IC401 L-
CS4391 L PF & Bu ffer R
R+
DA_L RCK Audio DAC KA 5532
R-
MPEG DA_BCK OP A MP
DA_XCK
4. Audio Block Diagram
I/F
DA_DAT A0
FL IC452 FL
L PF & Buffer
FR FR
DAC_RST K A 5532 A/V
S_DATA OP A MP JACK
U-COM S_CL K
3-15
I/F
I/F DAC_L1
IC451 RL IC453 RL
PCM1603KY L PF & Buffer
RR RR
Aud i o DAC KA 5532
DA_L RCK
(5.1CH) OP A MP
MPEG DA_BCK
DA_XCK
I/F
DA_DAT A[1: 3]
CENTER
IC454 CENTER
L PF & Buffer
WOOFER WOOFER
KA 5532
OP A MP
DV5000's
IC304
MI RR
RF & SDRAM
L DON IC301
MOTOR IC502 16/32BIT
I/F XC9572VL EE_CS 64M
93C46
CPLD
EEPROM MCL K2
DAT A
I/O PORT 72 32
CKE
MA [00:10] MD[00: 31]
SCL K,S
MA 12,13
/CS0
/RAS/
AD[
ALE /CAS 16
04 AD[ 00:15]
:
F_IN /WE
21
]
/DQM[0:3] IC3F1
SPINDLE_FG
FL A SH
4
LA [0:3] MEMORY
AD[0 :7] 8
16
5. MPEG & MEMORY Block Diagram
DVD[0 :7] 8 L ADD[04 :19]
DSP
3-16
I/F 4
LA [0:3] 16
AD[ 04:19] IC301
SCLK,SDATA
SQCK,SQS0
REQP IC501 DA_DAT A[0:3} 4
SDCL K1,PSYNC DA_BCK,DA_LRCK,DA_XCK
PANTERA-2 AUDIO
DSP_INT DAC_L0,DAC_L1
LE/PLUS I/F
SENSE DAC_RST
/DSP_CS
V_MUTE,16:9
ZISENB
C/R(B) A/V
/RD
CVBS/G(R) JACK
/PWED Y/B(G) I/F
CVBS
DV5000's
CIRCUIT DIAGRAM IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER NO CIR-
NAL CIRCUIT. SPECIAL COMPONENTS ARE SHADED NOTE :
ON THE SCHEMATIC FOR EASY IDENTIFICATION.
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIF-
1. Shaded( ) parts are critical for safety. Replace only
with specified part number.
CUMSTANCES SHOULD THE ORIGINAL DESIGN BE
1. POWER(SMPS) CIRCUIT DIAGRAM MODIFIED OR ALTERED WITHOUT PERMISSION
FER FROM THE ACTUAL CIRCUIT USED. THIS WAY,
IMPLEMENTATION OF THE LATEST SAFETY AND
2. Voltages are DC-measured with a digital voltmeter
during Play mode.
FROM THE TOSHIBA ELECTRONICS CORPORATION. PERFORMANCE IMPROVEMENT CHANGES INTO
ALL COMPONENTS SHOULD BE REPLACED ONLY THE SET IS NOT DELAYED UNTIL THE NEW SERVICE
WITH TYPES IDENTICAL TO THOSE IN THE ORIGI- LITERATURE IS PRINTED.
SD-3780/SD-420E
NOTES) Warning NOTES : Symbol denotes AC ground.
NOTES) Parts that are shaded are critical
NOTES) With respect to risk of fire or
NOTES) electricial shock. Symbol denotes DC chassis ground.
3-17 3-18
2. DVD DSP CIRCUIT DIAGRAM
5
5 6
SD-3780/SD-420E
TRACKING LOOP SLED LOOP WAVEFORM
FOCUS LOOP SPINDLE LOOP
3-19 3-20
3. DRIVE & RF CIRCUIT DIAGRAM
1
6
2
3
SD-3780/SD-420E
TRACKING LOOP SLED LOOP WAVEFORM
FOCUS LOOP SPINDLE LOOP
3-21 3-22
4. MPEG CIRCUIT DIAGRAM
SD-3780/SD-420E
Optical/Coaxial out Y/Pb/Pr(Componet) WAVEFORM
CVBS Y/C(S-VHS)
3-23 3-24