Toshiba SD-H400 - Combination Progressive-Scan DVD... User manual

DIGITAL MEDIA SERVER
SERVICE MANUAL
FILE NO. 810-200329
SD-H400
DIGITAL VIDEO

PREPARATION OF SERVICING
Pickup Head consists of a laser diode that is very susceptible to external static electricity.
Although it operates properly after replacement, if it was subject to electrostatic discharge during replacement,
its life might be shortened. When replacing, use a conductive mat, soldering iron with ground wire, etc. to
protect the laser diode from damage by static electricity.
And also, the LSI and IC are same as above.
1M W
Ground conductive
wrist strap for body.
Soldering iron
with ground wire
or ceramic type
Conductive mat The ground resistance
between the ground line
and the ground is less than 10 W .

SAFETY NOTICE
SAFETY PRECAUTIONS
LEAKAGE CURRENT CHECK
Plug the AC line cord directly into a 120V AC outlet (do
not use an isolation transformer for this check). Use an
AC voltmeter, having 5000 Wper volt or more sensitivity.
Connect a 1500 W10 W resistor, paralleled by a 0.15 mF
150V AC capacitor between a known good earth ground
(water pipe, conduit, etc.) and all exposed metal parts of
cabinet (antennas, handle bracket, metal cabinet
screwheads, metal overlays, control shafts, etc.).
Measure the AC voltage across the 1500 Wresistor.
The test must be conducted with the AC switch on and
then repeated with the AC switch off. The AC voltage
indicated by the meter may not exceed 0.3 V. A reading
exceeding 0.3 V indicates that a dangerous potential
exists, the fault must be located and corrected.
Repeat the above test with the DVD VIDEO PLAYER
power plug reversed.
NEVER RETURN A DVD VIDEO PLAYER TO THE
CUSTOMER WITHOUT TAKING NECESSARY
CORRECTIVE ACTION.
READING SHOULD NOT EXCEED 0.3V
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage” within the
product’s enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the appliance.
DVD VIDEO PLAYER AC VOLTMETER
(5000 W per volt
or more sensitivity)
Good earth ground
such as a water pipe,
conduit, etc.
1500 W
10 W
0.15 m F 150V AC
AC OUTLET
Test all exposed metal.
Voltmeter Hook-up for Leakage Current Check

SECTION 2
PART REPLACEMENT AND ADJUSTMENT PROCEDURES
SECTION 3
SERVICING DIAGRAMS
1. CIRCUIT SYMBOLS AND
SUPPLEMENTARY EXPLANATION
1-1. Precautions for Part Replacement
1-2. Solid Resistor Indication
1-3. Capacitance Indication
1-4. Inductor Indication
1-5. Waveform and Voltage Measurement
1-6. Others
2. PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM
3. BLOCK DIAGRAMS
3-1. DVD Overall Block Diagram
3-2. Power Supply Block Diagram
3-3. KDB Front, Power Switch Block Diagram
3-4. Logical System Block Diagram (DVD)
3-5. Output Block Diagram (DVD)
3-6. Tivo Block Diagrams
3-6-1. Tivo Block Diagram1
3-6-1. Tivo Block Diagram2
4. CIRCUIT DIAGRAMS
4-1. Power Supply Circuit Diagram
4-2. KDB Front Circuit Diagram
4-3. Power Switch Circuit Diagram
4-4. DVD Main Circuit Diagram
4-5. Tivo Circuit Diagrams
5. PC BOARDS
5-1. Power Switch PC Board
5-2. KDB Front PC Board
5-3. DVD Main PC Board
CONTENTS
SECTION 1
GENERAL DESCRIPTIONS
1. OPERATING INSTRUCTIONS
1. Replacement of Mechanical Parts
1-1. Cabinet Replacement
1-1-1. Top Cover
1-1-2. HDD
1-1-3. Front Panel
1-1-4. Tray Door
1-1-5. Mechanism Chassis Assembly
1-1-6. Fan
1-1-7. Rear Panel
1-2. PC Board Replacement
1-2-1. DVD Main PC Board
1-2-2. Tivo PC Board
1-2-3. Power PC board
1-2-4. KDB Front and Power Switch PC Board
2. LOCATION OF MAIN PARTS AND
MECHANISM PARTS
2-1. Location of Main Parts
2-2. Location of PC Boards
SECTION 4
PARTS LIST
SAFETY PRECAUTION
NOTICE
ABBREVIATIONS
(1) Integrated Circuit (IC)
(2) Capacitor (Cap)
(3) Resistor (Res)
1. EXPLODED VIEWS
1-1. Packing Assembly
1-2. Chassis Assembly
2. PARTS LIST

SECTION 1
GENERAL DESCRIPTIONS
1. OPERATING INSTRUCTIONS
Please refer to the owner's manual about the contents.
SECTION 1
GENERAL DESCRIPTIONS

2.LOCATION OF MAIN PARTS AND MECHANISM PARTS
2-1. Location of Main Parts
Fig. 1-2-1
2-2. Location of PC Boards
Fig. 1-2-2
B903 FAN
HDD UNIT
MD01
Mechanism chassis
assembly
UT01 Tivo Main board
U801 Power PC board
UD01 DVD Main PC board
UX02 KDB Front PC board
UX03 Power Switch
PC board

SECTION 2
PART REPLACEMENT AND
ADJUSTMENT PROCEDURES
CAUTIONS BEFORE STARTING SERVICING
Electronic parts are susceptible to static electricity and may easily damaged, so do not forget to ground as required.
Many screws are used inside the unit. To prevent the screws from missing, dropping, etc.always use a magnetized
screwdriver in servicing. Several kinds of screws are used and some of them need special cautions. That is, take care of
the tapping screws securing molded parts and fine pitch screws used to secure metal parts. If they are used improperly,
the screw holes will be easily damaged and the parts can not be fixed.
1. REPLACEMENT OF MECHANICAL PARTS
1-1. Cabinet Replacement
1-1-1. Top Cover
1. Remove seven screws (1), then remove the top cover
(2).
Fig. 2-1-1
1-1-2. HDD
1. Disconnect a connector (1).
2. Remove four screws (2) and a connector (3), then
remove the HDD (4).
Fig. 2-1-2
SECTION 2
PART REPLACEMENT AND
ADJUSTMENT PROCEDURES
Screws (1)
Screws (1)
Screws (1)
Top cover (2)
Connector (1)
Connector (3)
Screws (2)
HDD (4)

1-1-5. Mechanism Chassis Assembly
Note:
• Before removing the Mechanism chassis assembly (6),
be sure to short-circuit the laser diode output land.
After replacing the Mechanism chassis assembly (6)
and inserting the flexible cables (1), open the land as it
was.
1. Remove the front panel. (Refer to item 1-1-3.)
2. Disconnect three flexible cables (1).
3. Peel off the tape (2) from the mechanism assembly
cover (4).
4. Remove four screws (3), then remove the mechanism
chassis assembly cover (4).
5. Remove four screws (5) , then remove the mechanism
chassis assembly (6).
Fig. 2-1-5
1-1-3. Front Panel
1. Remove the top cover. (Refer to item 1-1-1.)
2. Remove the HDD. (Refer to item 1-1-2.)
3. Disconnect two flexible cadles (1).
4. Remove three screw (2).
5. Release five claws, then remove the front panel (3).
Fig. 2-1-3
1-1-4. Tray Door
1. Remove a spring (1).
2. Remove the tray door (2) while slightly bending it.
Fig. 2-1-4
Flexible
cable (1)
Flexible cable (1)
Screws (2)
Screws (2)
To DVD Main
PC board
Front panel (3) Claw
Claw
Claws
Spring (1)
Tray door (2)
Screws (3)
Mechanism chassis
assembly (6)
Flexible
cables (1)
Screws (5)
Tape (2)
Mechanism
chassis assembly
cover (4)
Pickup head
Laser diode
output lands

1-1-6. Fan
1. Remove a connector (1) and two screws (2) .
2. Remove the fan (3).
Fig. 2-1-6
Fan (3)
Screws (2)
Connector (1)
Screws (1)
Rear panel (2)
Claw
Claw
1-1-7. Rear Panel
1. Remove ten screws (1).
2. Loosen two claws and remove the rear panel (2).
Fig. 2-1-7

TO CNX01
(Tivo PC board)
To CTN21
(Tivo PC board)
To CTY01
(Tivo PC board)
To Pickuphead
To Loading
motor
To Stepper
To PX02
(KDB Front PC board)
CN603 CN601 CN502
CN503
CN501
IC503
IC502
CN901
CN302 CN701
CN103
IC401 IC306
IC305
Main PC board
Power PC board
Note:
• For the detailed information about DVD Main PC
board connection, see Fig. 2-1-9.
Fig. 2-1-9
1-2. PC Board Replacement
1-2-1. DVD Main PC Board
Note:
• Before removing the DVD main PC board (4), be sure
to short-circuit the laser diode output land.
After replacing the DVD main PC board (4) and
inserting the flexible cables (2), open the land as it
was.
1. Remove the top cover. (Refer to 1-1-1.)
2. Disconnect a connector (1).
3. Remove seven flexible cables (2).
4. Remove four screws (3), then remove the DVD main
PC board (4).
Fig. 2-1-8
Connector (1)
Flexible cables (2)
Flexible cable (2)
Flexible
cables (2)
Screws (3)
DVD main
PC board (4)
Pickup head
Laser diode
output lands

1-2-3. Power PC Board
1. Disconnect four connectors (1)
2. Remove a screw (2) and four screws (3), then remove
the power PC board (4).
Fig. 2-1-11
Connector (1)
Connectors (1)
Connector (1)
Screw (3)
Screws (3)
Screw (2)
Power PC
board (4)
1-2-2. Tivo PC Board
Cautions :
• Danger of explosion if battery is incorrectly
replaced.
• Replace only with the same or equivalent type of
battery.
1. Remove the top cover. (Refer to item 1-1-1.)
2. Remove the HDD. (Refer to item 1-1-2.)
3. Remove the front panel. (Refer to item 1-1-3.)
4. Remove the mechanism chassis assembly. (Refer to 1-
1-5.)
5. Remove the rear panel. (Refer to item 1-1-7.)
6. Disconnect three connectors (1).
7. Remove three flexible cables (2).
8. Remove seven screws (3), then remove the tivo main
PC board (4).
Fig. 2-1-10
Screws (3)
Tivo main
PC board (4)
Connectors (1)
Flexible cable (2)
Flexible
cables (2)

1-2-4. KDB Front and Power Switch PC Board
1. Remove the front panel. (Refer to item 1-1-3.)
2. Remove five screws (1), then remove the stay (2).
3. Remove a screw (3) and two flexible cables (4), then
remove the Power switch PC board (5).
4. Remove four screws (6), then remove the KDB front
PC board (7).
6. Remove the three screws (8), then remove the select/
enter button (9).
Fig. 2-1-12
Stay (2)
KDB front
PC board (7)
Front panel
Screws (8)
Flexible
cable (4)
Select/Enter
button (9)
Screws (6)
Screws (3)
Power switch
PC board (5)
Flexible
cable (4) Screws (1)

1-1. Precautions for Part Replacement
• In the schematic diagram, parts marked (ex.
F801) are critical part to meet the safety regulations,
so al ays use the parts bearing specified part codes
(SN) hen replacing them.
• Using the parts other than those specified shall violate
the regulations, and may cause troubles such as
operation failures, fire etc.
1-3. Capacitance Indication
Unit None ........... W
K ........... kW
M ........... MW
Tolerance None ........... ±5%
B ........... ±0.1%
C ........... ±0.25%
D ........... ±0.5%
F ........... ±1%
G ........... ±2%
K ........... ±10%
M ........... ±20%
Rated Wattage (1) Chip Parts
None ......... 1/1 W
(2) Other Parts
None ......... 1/ W
Other than above, described in the Circuit Diagram.
Type None ........... Carbon film
S ........... Solid
R ........... Oxide metal film
W ........... Metal film
W ........... Cement
FR ........... Fusible
Symbol
+
........... Electrolytic, Special electrolytic
NP
........... Non polarity electrolytic
........... Ceramic, plastic
M........... Film
........... Trimmer
Unit None ........... F
m........... mF
p ........... pF
Rated voltage None ........... 50V
For other than 50V and electrolytic capacitors,
described in the Circuit Diagram.
Tolerance (1) Ceramic, plastic, and film capacitors of which
capacitance are more than 10 pF.
None ........... ±5% or more
B ........... ±0.1%
C ........... ±0.25%
D ........... ±0.5%
F ........... ±1%
G ........... ±2%
(2) Ceramic, plastic, and film capacitors of which
capacitance are 10 pF or less.
None ........... more than ±5% pF
B ........... ±0.1 pF
C ........... ±0.25 pF
(3) Electrolytic, Trimmer
Tolerance is not described.
Temperature characteristic None ........... SL
(Ceramic capacitor) For others, temperature characteristics are
described. (For capacitors of 0.01 mF and
no indications are described as F.)
Static electricity capacity Sometimes described with abbreviated letters as
(Ceramic capacitor) shown in Eg. 3.
100k
Rated Wattage Type Tolerance
Eg. 1
104
10x10
4
pF (0.1 µ F)
Temperature characteristic
(or Temperature characteristic+
Static electricity capacity tolerance)
Eg. 3
100 m
Temperature
response Rated voltage Tolerance
Eg. 2
Fig. 3-1-1
Fig. 3-1-3
Fig. 3-1-2
1-2. Solid Resistor Indication
SECTION 3
SERVICIN DIA RAMS
SECTION 3
SERVICING DIAGRAMS
1. CIRCUIT SYMBOLS AND SUPPLEMENTARY EXPLANATION

1-4. Inductor Indication
Unit None ........... H
m........... mH
m ........... mH
Tolerance None ........... ±5%
B ........... ±0.1%
C ........... ±0.25%
D ........... ±0.5%
F ........... ±1%
G ........... ±2%
K ........... ±10%
M ........... ±20%
1-5. Waveform and Voltage Measurement
• The waveforms for CD/DVD and RF shown in the
circuit diagrams are obtained when a test disc is
played back
• All voltage values except the waveforms are expressed
in DC and measured by a digital voltmeter
1-6. Others
• The parts indicated with "NC", "KETSU" or "NO
STUFF" etc are not used in the circuits of this model
Eg. 4
Eg. 5
Fig. 3-1-4
Fig. 3-1-5
Type name
10 µ
Type Tolerance

2. PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
Fig. 3-2-1
UD01
DVD MAIN BOARD
UX02
KDB FRONT
DVD Drive
UX03
POWER SWITCH
U801
POWER BOARD
Power Cord 120VAC 60HZ
UT01
TiVo MAIN BOARD
CNX01
13P
FFC connector
CN302
13P
FFC connector
CTN21
6P
FFC connector
Tuner H001
PX02
11P
FFC connector
PX04
CTN25
15P
FFC connector
VGND
Cb- UTPUT
VGND
Cr- UTPUT
VGND
Y- UTPUT
VGND
C- UTPUT
VGND
Y- UTPUT
VGND
CV- UTPUT
IPX
18
17
16
15
13
12
11
10
9
8
7
14
19
12
11
10
9
7
6
5
4
3
2
1
8
13
6
4
2
5
3
1
7
6
4
2
5
3
1
7
PW N
AUD MUTE / H MUTE F
GND
DVD SPDIF / IEC958 UT
GND
DVD UTL / FL UT
DVD UTR / FR UT
6
4
2
5
3
1
6
4
2
5
3
1
RTS / WRIGHTX
TXD / RXD
NC / 5V
GND
CTS / RTS
RXD / TXD
CNY01
7P
FFC connector
1 2 3 4 5 6 7 8 9
10
E+5V
VDD+5V VDD+3V
VDD+2.5V
GND GND
M+8V
MGND
VKK -31V
F-
1 2 3 4 5 6 7 8 9
10
F+11 11
CN103 11P
connector
CN701
11P
Dip WIRE
CN601
6P
FFC connector
CN901
7P
FFC connector
1 2 3 4 5 6 7 8 9
10 11
3.3V
GND
5V 5V
GND
12V 12V
GND
30V
1 2 3 4 5 6 7 8 9
10 11
GND12 12
13P N13
GND
3.3V
CTN5
13P
DIP WIRE
CN102
13P
connector
1 2 3 4 5
1 2 3 4 5
E-9V
GND
NC / +5V
GND
NC / E+9V
CN101 5P
connector
JT22
40P
IDE CABLE
6
4
2
5
3
1
7
8
10
12
9
11
13
7
DVD_LED
REM TE_ UT
L_RST
PWR_CTRL
KEYSCAN3
GND
KEYSCAN2
12
10
8
11
9
13
2
4
6
3
5
1
KEYSCAN4
KEYSCAN0
KEYSCAN1
REC_LED
LIVETV_LED
CACHE_LED
2 4
6
8
10
12 13
1 3 5 7 9
11 13 15
15 13 11
9 7 5 3
14
12
10
8 6 4 2
1CACHE LED
PWR_CTRL / P WER N
L_RST / DVDREST
REM TE_ UT/IR RECV N
DVD LED
RCE LED
Live TV_ LED / TV LED
KEYSCN4
KEYSCN0
KEYSCN1 KEYSCN2
KEYSCN3
STBYLED
P WER LED
GND
WX01
13P
FFC connector
PX01
13P
FFC connector
CN603 11P
FFC connector
3
2
1
5
4
6
7
12
11
10
9
7
6
5
4
3
2
1
8
13
DMN
DMP
LMT
GND
FMP
FMN
VCC
DMFG
5
6
4
3
2
1
7
8
6
4
2
8
5
3
1
7
LOADING
MOTOR
TCLS
LDMN
T PN
LDMP
GND
5
4
3
2
1
4
2
5
3
1
A
D
C
F
E
VCC
VREF
GND
V R2
M N2
LD2
RF
VCC
M N
V R
LD
GND
Vcc
F-
T+
T-
F+
B
11
9 7 5 3 1
10
8 6 4 2
HMUTE
VKK-34V
F-
F+
GND
E+5V
SCK / DSPCKX
MAIN_T _KDB / DSPSI M-D
KDB_T _MAIN / DSPSI M-M
STB / DSTBX
DVD MAIN / RST X
2 4
6
8
10
1 3 5 7 9
11
22
21
20
19
17
16
15
14
18
23
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
STEPPER
PICK UP
HEAD
12
11
10
9
7
6
5
4
3
2
1
8
13
14
25
24
23
21
20
19
18
17
16
15
22
26
36
35
33
32
31
30
29
28
27
34
37
38
39
40
12
11
10
9
7
6
5
4
3
2
1
8
13
14
25
24
23
21
20
19
18
17
16
15
22
26
36
35
33
32
31
30
29
28
27
34
37
38
39
40
IDEDD4
IDEDD11
IDEDD3
IDEDD12
IDEDD2
IDEDD10
IDEDD5
IDEDD9
IDEDD6
IDEDD8
IDEDD7
GR UND2
IDERST
GR UND3
IDEI W
GR UND4
IDEI R
GR UND5
IDEDMAR
KEYPIN
GR UND1
IDEDD15
IDEDD0
IDEDD14
IDEDD1
IDEDD13
IDEDA0
IDEDA2
IDECS0
IDECS1
DASP
PDIAG
IDEDA1
I CS16
IDEINTRQ
GR UND6
IDEDMAC
CSEL
IDEI RDY
GR UND7
HARDDISK
CNY02
5P
DIP WIRE
6
4
2
5
3
1
7
6
4
2
5
3
1
7
D
C M
L
NC
R
C
U
SE ECT ENTER
BUTTON SWITCH
PX03
7P
FFC JST connector
4
2
3
1
4
2
3
1
+5V
GND
GND
+12V
CN104 4P
connector
Power Supply Cable
CN501
23P
FFC connector
CN503
8P
FFC connector
CN502
5P
FFC connector

Fig.3-3-1
3. BLOCK DIAGRAMS
3-1. DVD Overall Block Diagram
PUH
Display-CPU
Display
(FL)
POWER
CONTROL
Feed
Motor
Tray
Motor
PUH Driver
Motor Driver
1M-DRAM
Decryption,
Video Process,MPEG-2 Decoder
Dolby-Digital Decoder, OSD
MAIN CPU
64M-S-DRAM
MEDIA SW
PX01
PX04
PWR_CTRL
KDB SWITCH
1chip-SERVO
Data Processor
SPM
VIDEO LPF
with
AMPLIFIRE
Composite
Video Out
S Video Out
Y,C
B ,C R
Coaxial
Digital
TOS Link Digital
Audio Out
22.5792
MHz
E2PROM
RF Amp.
Data/Control Bus
DVD AV Data
SP DIF Data
Buffer
POWER CONTROL
UT70
TC7S08F
LPF &
Amplifier
Audio Out
FL, FR Analog
Audio Out
RF CUT
POWER SWITCH SUPPLY
KDB FRONT UNIT
DVD MAIN PROCESSOR UNIT AUDIO/VIDEO OUTPUT UNIT
IC502
TA1323F
X501
Xtal
27MHz
IC503
BA5813FM
IC307
S24C02AFJ-TB
IC402
M11B11664A-30T
IC401
TC94A03F
ICX01
TMP86PM74F
IC305
MT48LC2M32B2
32M-FRAM
IC309
MBM29LV160TE
IC902
AD1958
IC302
TC7S08F
HDD To
DVD INTERFACE
UT60
PCA9554DB
MODULATOR
UT4
TMDH2XA38A
IC306
ZR36750
UT50
MM1231
SWITCH
SWITCH
UT49
MM1231
UT3
CTN21
CN302
WX01
CN901 CNY01
CTN25
CNX01
CN601
CN901 CNY01
UT81
TC74HCU04AF
ICY01
NJM4580E
UT11
MM1568
AV
Master Clock
Audio DAC
+ PLL
RELAY
K1
A-5W-HK

3-2. Power Supply Block Diagram
Fig. 3-3-2
RECTIFIER
SMOOTHIN
AC FILTER
D11-D14, NTC1,
C51, C5
C13, C14, C1
AC100-120V
50/60Hz
RECTIFIER
SMOOTHING
D801, C801 Q801
E-9V
3
+5V
5
E+9V
1
D781
IC751
Q301, Q311,
Q312, D303-D305
CONTROL
CIRCUIT
Q1, Q2 PC1
PC51
PHOTO
COUPLER
CONTROL
CIRCUIT
Q51, Q52
PHOTO
COUPLER
IC101, VR101
IC401, VR401
ERROR
AMP
RECTIFIER
SMOOTHING
D301, C301
RECTIFIER
SMOOTHING
D752
D701, C701, D751
ERROR
AMP
9V SW
IC231
RECTIFIER
SMOOTHING
D201
3.3V REG/SW
Q151, Q152
RECTIFIER
SMOOTHING
D101, P101, C101
T1
TRANS RECTIFIER
SMOOTHING
D501, D502, C501 Q501
CN101
5V REG/SW
-34V REG/SW
F+F- SW
D221
-9V
REG/SW E+5V
1
VDD+5V
2
VDD+3V
3
CN103
VDD+2.5V
4
M+8V
7
VKK-34V
9
F-
10
F+
11
+5V
5
+5V
6
Power
control
13
CN102
+12V
8
+12V
9
To
TiVo
MAIN
AV SW
To
DVD
MAIN
To
TiVo
MAIN
+12V
1
+5V
4
CN104
To
HDD

Fig. 3-3-3
3-3. KDB Front, Power Switch Block Diagram
To DVD Main
FRONT DISPLAY MAIN
DVD
2322 21 2827262524
15161718192021 3231 14
77
76
75
74
73
72
71
52 53 54 55 56 57 58 59 60 61
17
9
16
15
2
3
385
G7
G6
G5
G4
G1
G2
G3
G4
S18
S17
S16
S15
S14
S13
S12
S11
S10
S9
XX01
8MHz
6
10
9
8
6
10
9
8
EVER+5V
Vkk
F(-)
F(+)
CN603PX02
KEYSCAN0
KEYSCAN4
GND
REMOTE-OUT
L-RST2
9
5
10
WX01
ZX02 REMOTE
CONTROL
MODULE
3
12
5
9
4
11
DVD_LED
REC_LED
KEYSCAN3
KEYSCAN1
KEYSCAN27
4
6
12
8
7
10
LIVE TV_LED11 3
CHCHE-LED13 1
8
2
6
PX01
PX03
POWER
KDB SW POWER
LED
STANDBY
LED
PX04
CTN25
EVER+5V
SELECT
ENTER
BUTION SW
TRANSFER
SERIAL
REC-LED LIVE TV-LED CACHE-LED POWER-LED STANDBY-LED13
6 1
7
To Tivo Main
14
13
6
1
7
14
KEYSCAN2 KEYSCAN1 KEYSCAN0 DVD-LED KEYSCAN48
11
9
10
5
8
11
KEYSCAN312 12 REMOTE OUT44
9
10
5
C D
COM
NC
L2
5
3
4
1
R U7
6
FLIP DRIVE
DISPLAY MEMORY
112byte
Vdd VASS
F(-) F(+)
G1 G2 G3 G4 G5 G6 G7 S18 S17 S16 S15 S14 S13 S12 S11S10 S9
ICX01
TMP86PM74F
DISPLAY MICROCOMPUTER
29
G8
70 G8
8
DVD
7 GND 7
3
4
2
3
4
2
KDB_TO_MAIN
MAIN_TO_KOB
STB
5 SCK 5
62 63 64 65 66 67 68 69
S8
S7
S6
S5
S4
S3
S2
S1
KEYSCAN 4 KEYSCAN 0 KEYSCAN 1 KEYSCAN 2 KEYSCAN 3
DVD LED
13
S8
12
S7
11
S6
10
S5
9
S4
8
S3
7
S2
6
S1
45
LIVE
TV
OPEN/
CLOSE PAUSE
TIVO >>>>><<<<<
STOP PLAY
GX01
8-BT-230GNKM
REC LED
LIVE TV LED
CACHE LED
PX02
Pin 6

Fig.3-3-4
3-4. Logical System Block Diagrams (DVD)
From
IC502
PIN30
65
PD0
PD7
73
72
71
PDCK
PDREQ
PDSYC
1M DRAM
IC401
TC94A03F
DATA PRO-1
DISC STREAM
DATA 8bit
IC306
ZR36750
AV 1 CHIP PROCESSOR
8
10
12
14
CN302
CVBSOUT
143
DVD VALD
DVD SOS
DVD STB
M11B11664A-30T
IC402
MBM29LV160TE
IC309
16M FROM
CNX01
CV
C
64M-SDRAM
MT48LC2M32B2
IC305
RFDVD
62
OUTPUT UNIT
C
Y (I/P) G
B
16
18
8
10
12
14
16
18
CR
Y
7
5
ROUT
7
LOUT
5
3
1
AUDIO MUTE
3
DVD SPD IF
1
4
POWER ON
4
YOUT
COUT
GYOUT
B/UOUT
R/VOUT
AOUT0
SPDIF
DUPTD
ABCLK0
ALRCK0
70
PD8 DVDERR
60
67
69
PD1
PD3
PD2
PD0
PD5
PD6
PD7
PD4
CNY01CN901
BCLK
LRCK
SDATA
OUTL
OUTR
ZERO
5
23
6
4
20
26
IC902
AD1958
AUDIO DAC
1
IC302
IC7S08F
1
IC314
IC7S08F
5
3
RTS
4
TXD
3
CN602
6
4
CTS
6
RXD
WRIGHTX
RTS
5
CTN21
CN601
4
6

Fig. 3-3-5
3-5. Output Block Diagram (DVD)
DVD MAIN TiVo MAIN
CN302
CN601
12
10
16
18
14
8
C-IN/OUTPUT
Y-IN/OUTPUT
Cb(I/P)-IN/OUTPUT
Cr(I/P)-IN/OUTPUT
Cy(I/P)-IN/OUTPUT
Cv(I/P)-IN/OUTPUT
RXD
TXD
6
4
10
12
8
2
33
55
CNX01
CTN21
To
DVD Main
CN901
5 FL OUTPUT 5
7 FR OUTPUT 7
1 IEC958 OUT DVD_SPDIF
UT70
TC7S08F UT60
PCA9554DB
UT81
TC74HCU04AF MIXER
UT8
MSP448G 64PLQFP
ICY01
NJM4580E
UT3
MEDIA SWITCH
K1
A-5W-HK
QY04
HN-IC03F
UT11
MM1568AJBE
Video Driver
UT49
MM1231
UT50
MM1231
UT19
BCM7020 PCI
SYSTEM
Controller
PW ON
SC1_OUTR
SC1_OUTL
I/O3
POWERON
CTN25
PXO4
Power SW
214POWERON
IEC_958
AUDR
L
R
C
Y
PB
PR
JX01
Y
UT4 pin 2
ICY03 TOTX179
DIGITAL
OUT
(COAXIAL)
Lch OUT
Rch OUT
S TERMINAL
COMPOSITE
VIDEO
(modulator)
MUTE
IN1B
YINI
CIN
CYOUT
CBOUT
CRONT
COUT
VOUT
YOUT
CRIN
CBIN
CYIN
OUT1
OUT2
OUT3
AD19
AD26 T1_CV
Y25 T1_C
Y24 T1_Y
AA24 T1_CR
AA25 T1_CY
AA26 T1_CB
OUT1
OUT2
OUT3
AUDL
1
4 POWERON 4
CNY01
To
DVD Main
To
DVD Main
4
1
28
2
6
1
IN2B
14
IN3B
9
IN1A
16
IN3A
8
IN2A
11
IN2B
14
IN1B
1
IN3B
9
177
176
IN1A
16
IN3A
8
IN2A
11
6
Vin
4
2
25
22
19
31
133
28
16
14
12
3
5
6
3
5
6
7
7
8
4
1
43
29
7
5 2
8
3
10
12
2
QT8, QT09, QT15
2
9