Toshiba SD-33 Schematic
SERVICE MANUAL
DVD VIDEO PLAYER &
VIDEO CASSETTE RECORDER
FILE NO. 810-200311X
MARCH, 2003
SD-33VB
SD-33VE
SD-33VL
PAL
Hi-Fi
3-20 3-21
BLOCK DIAGRAMS
1. POWER(SMPS) BLOCK DIAGRAM
4
3
12
TO DRUM MOT
12VA
TO FLD TIMER
-27VA, FD(-), D(+)
TO CAP MOT
27VA
TO DVD/Hi-Fi
REG 12V
TO DVD
8V
TO DVD
3.3V
TO TUNER
33V
TO SYS/Hi-Fi/Tu
5.0V
TO DVD
5V
FROM µ-COM
PWR CTL 'H'
TO SYS/Hi-Fi/Tu
5.3VA
DRIVE & S/W BLOCK
OVER CURRENT LIMIT
BLOCK
(IC101,BD01,R124, R125,
R126, C112, D103, C135)
SW I/C VIN SUPPLY
BLOCK
(R106, R107, C104, C109,
D102, R105)
FROM µ-COM
TIMER 'H'
FROM µ-COM
HSR 'H'
LINE FILTER
BLOCK
(C101, L102, C102)
BD101
C103
V101
1
2
222
21
20
19
18
17
15
14
8
10 12
3
4
3
IC102
D117
RL104
D115 RL104
IC103
PW101
BR
(BK)
HOT CIRCUIT
BL
(WH)
F101
C111
HOT GND
R101
SNUBBER
BLOCK
(D101, R104,
C105, C106)
RECTIFIER &
SMOOTHING
(D110, C123,
L122, C126)
-27VA, FD(-), FD(+)
SUPPLY BLOCK
(D108, D107, ZD101, C121,
C130, R111, R118, R167, R168)
FD(-)
-27VA
FD(+)
FD(+)
FD(-)
-27VA
RECTIFIER &
SMOOTHING
(D106, C117, R130)
HSR SWITCHING
BLOCK
(Q155, R131, ZD104,
C156, Q153, Q154,
R151, R152, R110)
RECTIFIER &
SMOOTHING
(D111, C127,
L123, C128)
RECTIFIER &
SMOOTHING
(D118, L125,
C129, C131)
FEED-BACK
BLOCK
(R112, R113, C133,
R114, R115, R116,
R117)
8VA REG
BLOCK
(D114, IC151,
C154, R170)
12VA REG
BLOCK
(Q156,ZD103,C151,
C152,R153)
3.3V REG
BLOCK
(IC152, C153, R156)
RECTIFIER &
SMOOTHING
(D113, R119, C132)
33V S/W
BLOCK
(Q161, R154, R155)
PWR CTL
BLOCK
(Q162,R163,R164,
R171,C161)
5V BLOCK
(R157, Q150, R158,
R159, D121, C155)
!
!
C110
! !
!
!
16
NOTES : Symbol denotes AC ground.
Symbol denotes DC chassis ground.
COMBI SCART
TOSHIBA
3-22 3-23
3. VPS BLOCK DIAGRAM
14 11 10 9 8
1 4 5 6
DATA/SYNV
SLICER
CLOCK PLL
DATA
AQUISITION
IIC BUS
INTERFACE
TIMING
VPS BLOCK
IC7V1
SDA5650
151 5.2VA
378 VPS V.out
59 CLK
60 DATA
55 DAV
VSUP
CVBS
Iref
VC01
VCS
CSO
SDA
SCL
GND
PD1
EHBDA VIN
T1
PD2/
VC02
2 3 7
13 12
COMBI SCART
TOSHIBA
2. Tu/IF, NICAM & A2 BLOCK DIAGRAM
(From Power)
159
27
731
60
59
93
94
158
143
872
159
871
151 5.4VA
5.2VT
S.V.W
MSP3417
MSP3407
3-24 3-25
4. Y/C BLOCK DIAGRAM
(PB MODE)
90
93
96
84V.ENV
87
70
V.H.SW
C.ROTARY
DATA
CLOCK
C.SYNC
V.OUT
(MICOM)
S2 V.OUT
S1 V.OUT
SYNC IN
69 68 67
C-Delay
(1H/2H)
BPF
MAIN
CONV
ACCC LPF
CCD
LPF
ACC
DET
CNC
2521
IC201
LA70100M
IC301
LA71750M
29
18 14
PB FM EQ FM OEM
PB FM
AGC
MAIN
DE EMP
Y-LPF
YNR
SUB LPF
60dB AMP
Y/C MIX
65 63 61
46
43
Y-Delay
79 78
(REC MODE)
80
REC'H'
V.H.SW
C.ROTARY
DATA
CLOCK
C SYNC
V.OUT
MICOM
V.IN4
FRONT
V.IN3
DEC
79 78 76 75 70 69 68 67 65 59 58 54 52
50 V.IN2 S1
V.IN1 TUNER
48
46
43
33
32
31
CLK-IN
2928
4.43MHz
2721
95
94
89
88
Killer C-LPF ACC
BPF
Main
Conv
Main
Conv
DETAIL
ENH
NL
EMPHA
W/D
CLIP
IC301
LA71750M
UP REC
SP REC
(To Drum)
(To Drum)
W/D
CLIP
REC
FM EQ
Y-LPF FBC
AGC
SW
Y-DELAY
KILL DEC
REC APC
VX02 VX02
COMP
AMP
1H/2H
DELAY
YNR
29 16
2 12
IC201 LA70100M
COMBI SCART
TOSHIBA
3-26 3-27
5. Hi-Fi BLOCK DIAGRAM
IC802
A
B
Hi-Fi/
REC
10 22
16
6
129
12
26
IC801
A.OUT
To JACK
37
Hi-Fi PB 'B'
Hi-Fi PB 'A'
Hi-Fi REC
1
2
3
4
5
6
7
10
11
21 22
36 35
16
A.OUT 'L'
A.OUT 'R'
17
8
9
AUDIO INPUT
BLOCK
VIDEO INPUT
BLOCK
AUDIO INPUT BLOCK
OSD V. IN
DVD/R V. IN
DVD A.IN 'L'
DVD A.IN 'R'
NORMAL AUDIO
OUT(To AVCP)
NORMAL AUDIO
IN(From AVCP)
Tu A.IN 'L'
Tu A.IN 'R'
DVD A.IN 'L'
DVD A.IN 'R'
EU1 A.IN 'L'
EU1 A.IN 'R'
EU2 A.IN 'L'
EU2 A.IN 'R'
AV2 A.IN 'L'
AV2 A.IN 'R'
MODULATOR
A.OUT
(To Tu)
COMBI SCART
TOSHIBA
3-28 3-29
6. SYSTEM BLOCK DIAGRAM
2fsc
R524, R514, R518,
R516, R589, C577,
C576, L501, Q504
LD(+)
LD(-)
L/M CONTROL
R525, R526
IC501
HD6432197A
DVD
VCR DATA IN
VCR DATA OUT
DVD CLK
DAV
OTPB LED 'H'
R/C IN(2W)
NC
CST SW
A.ENV
CANAL DET 'H'
COMBI SCART
TOSHIBA
3-30 3-31
CIRCUIT DIAGRAMS
1. POWER(SMPS) CIRCUIT DIAGRAM
IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE
MODIFIED OR ALTERED WITHOUT PERMISSION
FROM THE TOSHIBA ELECTRONICS CORPORATION.
ALL COMPONENTS SHOULD BE REPLACED ONLY
WITH TYPES IDENTICAL TO THOSE IN THE ORIGI-
NAL CIRCUIT. SPECIAL COMPONENTS ARE SHADED
ON THE SCHEMATIC FOR EASY IDENTIFICATION.
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM THE ACTUAL CIRCUIT USED. THIS WAY,
IMPLEMENTATION OF THE LATEST SAFETY AND
PERFORMANCE IMPROVEMENT CHANGES INTO
THE SET IS NOT DELAYED UNTILTHE NEW SERVICE
LITERATURE IS PRINTED.
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.
Switching Error.
IC101 is defective.
Switching Error.
IC103, 102 are defective.
2.5V, 3.3V no power.
D111 is defective.
No Power.
F101 is defective.
5.3VA no power.
D112 is defective.
33V no power.
D113 is defective.
No power.
BD101, R101 are defective.
12VA no power.
D110 is defective.
NOTES) Symbol denotes AC ground.
NOTES) Symbol denotes DC chassis ground.
NOTE) Warning
NOTE) Parts that are shaded are critical
NOTE) With respect to risk of fire or
NOTE) electricial shock.
3-32 3-33
2. TU/IF, NICAM & A2 CIRCUIT DIAGRAM
EE MODE(VIDEO)
TU MODE (AUDIO)
TOSHIBA
3-34 3-35
3. A/V CIRCUIT DIAGRAM
1
4
5
2
7
8
13
11 12
2
39
1014
6
2
PB SECAM COLOR
REC AUDIO
PB Y+C
PB Y
PB C
REC Y+C
REC Y
REC C
REC SECAM COLOR
PB AUDIO(MONO)
WAVEFORM
TOSHIBA
VB602CS OPTION
Audio Tracking is failed.
IC301 Pin 84 is defective.
EE, PB Screen doesn’t appear.
Q305 is defective.
PB COLOR Signal disappear.
IC301 Pin70 is defective.
PB COLOR Signal disappear.
IC301 is defective.
D301or IC301 Pin 80
REC is defective.
PB and Recording is failed.
(IC301 doesn’t operate.)
IC301 Pin 69, 68 are defective.
Normal Audio signal is not recorded.
FL301, Q301, Q306 are defective.
No mono Audio Signal
in PB MODE.
Q302, Q303, Q314
are defective.
3-36 3-37
4. Hi-Fi CIRCUIT DIAGRAM
PB
REC
TOSHIBA
44 Pin is defective.
Hi-Fi Audio is not appear.
IC801 Pins42, 43 aredefective.
All Audio is not appear.
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