Read Sharp HT-SL70 (serv.man3) Service Manual online
HT-SL70
5 – 1
CHAPTER 5. DIAGRAMS
[1] Block Diagram
Figure 5-1: BLOCK DIAGRAM
SPDIF Output
HDMI RST
HDMI INT
SDA
SCL
TO/FROM MICOM
+3.3V UNSW
+1.8V
J3
HDMI IN
J7
HDMI OUT
HDMI PWB
TO MAIN PWB
HDMI OUT/ARC
ARC transceiver
EP91H0
EP91H0
5
C
I
K
1
A
1
9
P
E
C
I 3
C
1
1
0
F
P
E
I2C
I2C
I2C from
host MCU
host MCU
AMP OTW
AMP SD
X601
13.5MHz
IC601
PWM IC
TAS5504A
XTL_OUT
XTL_IN
S
DA
S
DIN2
VALID
DAP
R
E
S
DAP_PWDN
DAP_MUTE
S
CL
PWM_P4
PWM_M4
PWM_P1
PWM_P2
PWM_P2
DVDD_PWM
ADC IC
PCM1808
VINR
VINL
VCC
VD
SCKI
LRCK
BCK
DOUT
MCLK
LRCLK
SCLK
SDIN1
IC501
MICOM IC
R5F21265SNFP
VCC
LEVEL DETECT
+3.3V
BICOLOR LED
LED_RD
CN700
LED
G
R
FROM SUBWOOFER BOX
TO MICOM
FROM MICOM
FROM MICOM
FROM
MICOM
MICOM
S
CL
DC RELAY
S
DA
+5V
IC802
HDMI CE2(1.8V)
MM3421JTRE
+1.8V
+3.3V
+3.3V
+3.3V UN
S
W
KEY
RE
S
ET
MODE
UN
S
W 3.3V
MICOM FLASH
CN500
+5V
+5V
IC800
5V REGULATOR
BD9329EF
+12V
+12V
IC901 AS5352A
+12V
+33V
UN_
S
W 3.9V
SMPS
UN_SW 3.9V
+5V
IC502
OP-AMP
(LEVEL DETECT)
+3.3V UNSW
INPUT
SIGNAL
SIGNAL
TO MICOM IC
LEVEL DETECT
TO HDMI
+3.3V
TO HDMI
D
NJR12094
VALID
IC803
1117Y33
OTW
Internal Pullup
Resistors to VREG
Protection
and
I/O Logic
SD
M1
M2
RESET_AB
RESET_CD
PWM_D
PWM_C
PWM_B
PWM_A
PWM
Rcv.
M3
Under-
voltage
Protection
Power
On
Reset
Temp.
Sense
Sense
VREG
4
4
Overload
Protection
Ctrl.
Timing
PWM
Rcv.
Ctrl.
Timing
Gate
Drive
BTL/PBTL-Configuration
Pulldown Resistor
Gate
Drive
VDD
VREG
AGND
GND
OC_ADJ
GVDD_D
BST_D
PVDD_D
OUT_D
GND_D
GND_C
GVDD_C
GVDD_B
BST_C
BST_B
OUT_B
PVDD_C
PVDD_B
GND_B
GND_A
GVDD_A
BST_A
OUT_A
PVDD_A
OUT_C
sense
BTL/PBTL-Configuration
Pulldown Resistor
PWM
Rcv.
Ctrl.
Timing
Gate
Drive
BTL/PBTL-Configuration
Pulldown Resistor
BTL/PBTL-Configuration
Pulldown Resistor
PWM
Rcv.
Ctrl.
Timing
Gate
Drive
AUDIO IN
JK601
M0004AW
IC302
DIR IC
DIR9001PW
SCKO
DIR AUDIO
DIR FSOUT0
DIR FSOUT1
DIR RST
DIR ERROR
LRCKO
BCKO
DOUT
C
V/
D
D
V
WI
X
R
CKSEL
X301
12.288MHz
XTO
XTI
Y3 (18.432MHZ)
Y2 (24MHZ)
IC4
Sub-MCU/EPF021A
J20
S/PDIF
S/PDIF MUX
+12V
+12V
+12V
+12V
+33V
CNP301
sw-
sw+
R+
L+
R-
L-
S0901
TO
S
PEAKER
TO
S
UBWOOFER
12
+33V
+33V
+33V
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