Philips HTB7250D, Service Manual

Page: 19 / 39

4 - 1 4 - 1
BLOCK DIAGRAM
MT8580BDAG
BD Ba
c
k
e
n
d
I2C
INT
IR
UART
HDMI IN + MPEG BOARD
Ethernet
RJ-45
Walleywood loader Loader
BD OPU Sanyo TRV-415H09
RF
Display Unit Part
Fan
FAN Control
From spk output
Tuner/RDS control
256K FLASH,16K SRAM
STM32F100VC
CEC Player
UI-User Input ( Key/IR)
VFD display
D-AMP control
CEC Audio System
PWM port
Transistor
AC(to VFD)
CS5346
MUX+ADC
CS8422
SPDIF Rx
COAXIAL
HDMI SPDIF IN(ARC)
EEPROM
AT24C02
DE-PWR
PWR/STBY
Powre down
I2C
BD-MCLK
I2C
CEC
128MB 2pcs
DDR3
DDR3
NADN Flash
For MCU Debug
Debug2
Debug5
GND
+3.3V
Debug3
Debug4
Debug1
3.3V
5V
LDO Reg.
LM1117-33
DC TO DC
DC TO DC
LDO
DC/DC
1.2V
+5V 1.2V
(3.5A)
3.3V(1.0A)
(0.3A)
LM1117-1.2V
WB1542
G5627F11U
TPS54418RE
1.5V
LDO
3.3V(0.3A) LM1117-3.3V
LDO
9V
LM1117-ADJ +12V (1.3A)
LDO
To video ADC
1.8V
LM1117-1.8V
(2.0A)
TO OPU
AUX-IN
VFD Display
VFD DRIVER
PT6311
BT Audio
HDMI SPDIF IN(ARC)
SPF-MCLK
SPF-MCLK
IC 4558
MIC in
AUX in
13-Char Only THB92XX
Transistor
LRCK
SCLK
PWM pin
Diode
and R.C
DC port
CEC
MP3 in
SW-Upgrade
+3.3V
TX
RX
I2C
USB 2.0
USB1 Front
Current protect
TPS2553
+5V/1.0A
OPTICAL
256MB 1pcs
HDMI Out
7 KEY
I2C
LED x 1 only STB for HTB72XX
Touch PAD IC
eKT4701
MAIN BOARD
Provision Mic for 93/98 version
WiFi Module
BRAND: ALPHA
(Ralink RT3370)
Model Number: WUS-N18M
USB cable
Connector
Build in(integrated)
Current protect
TPS2553
+5V/1.0A
USB2
IR
IR
MP3/Mic
Mic
Tuner Audio
Audio/Karaoke DAO
Audio/Karaoke DAO
Tuner Pack
T
uner
Audio
TPIC2050
Motor driver
SERVO
UART
UART2 0R Jump
0R Jump
(Simple)
(Advance)
MP3/Mic Delect
MP3/Mic Detect
Mic Mono Jack
(7.0A MOSFET SW IC)
CEM8311/AO4813
Motor driver
+12V
+5V
Motor driver
USB/WiFI
H/L Power SW control
TAS5538
D-AMP PWM
FL
VOLUME FL
TAS5612A PWR AMP
OUTPUT 30% 270W
FR/FL
RR/RL
SPK (ohm)
SUB
135W
5
FR/FL
RR/RL
C/SU
B
SR
R
/SR
L
I2C
MCLK
H-I2S
1.8V
3.3V
LDO Reg.
LM1117-33
+33V
+12V
+12V
PSU
BK5V
DE-PWR
STBY
Power consumption < 0.5W
+33V
MCLK
UART1
ESD Protect
x 2pcs
HDMI3 IN
HD3V3
BK5V
LDO Reg.
LM1117-33
HD1V8
BK5V
LDO Reg.
LM1117-33
HDMI
Switch
EP94M3
Audio/Karaoke DAO
ESD Protect
x 2pcs
HDMI1 Out
BD HDMI1
256MB
Fan
FAN CTRL
SUB SPK
+-
3
TAS5612
AMP
PWM IN
Subwoofer Unit Part
Buffer
74HC04
180W(10%)
230W(30%)
+12V
+1
5
V
Transistor
+32.5V
GND
STBY
+15V
BK9V
10pin connector
S-GND
DE-PWR
S-PWM
Reset
GND
+32.5V
GND
STBY
+15V
BK9V
3M 14pin cable
S-PWM
S-GND
DE-PWR
Reset
(wire #24)
(wire #24)
(wire #24)
(wire #24)
(wire #28)
(wire #28)
(wire #28)
(wire #28)
(wire #28)
GND
(wire #24)
+32.5V
(wire #24)
GND
(wire #24)
+15V
GND
(wire #24)
(wire #24)
H_I2S MCLK
MFI337S3959
iPOD
Implementation
Subwoofer PSU
For HTB92xx
White LED
BM84
Blutooth module
CTL IO BT
CTL IO BT
EDID AT24C02
Serial EEP ROM
Only THB92XX
8 - Char Only THB72XX
BD I2S
slot Loader
LED x 7 for HTB92XX
Write
Read
EP94M3 CTL I2C
EP94M3 I2C
RX
5V
(H
1/2/3)
R
X
HPD(
H1
/2
/3
)
TO-EP94M3
TX
H
P
D
To M
T
8580 H
D
M
I I
N
LCD Display Only THB9245
D
D
C
T
X
-I2C
T
o
MT
8580 H
D
MI IN
DDCTX-I2C EP94M3-RST EP94M3-INT
BD
-M
CL
K
Audio I2S
I2
C
SPF-MCLK H_I2S MCLK BD I2S BD-MCLK
Audio I2S
I2
C
For HTB92xx
For HTB72xx
EP94M3 CTL I2C
EDID AT24C02
Serial EEP ROM
EDID AT24C02
Serial EEP ROM
For HTB72xx
I2C