Read Sharp LC-46XD1E (serv.man7) Service Manual online
LC-46/52XD1E-RU
7 – 18
15. IC4001: RH-IXB680WJZZ
DIGITAL-PROCESSOR
Pin No.
Pin Name
I/O
Pin Function
NET NAME
A8,B8,B19,B20,C8,
D8,F1-F4,U23,U24,
V1-V4,AA23-AA26,
AC7,AC15,AD7,
AD15,AE7,AE15,AF7,AF15
D8,F1-F4,U23,U24,
V1-V4,AA23-AA26,
AC7,AC15,AD7,
AD15,AE7,AE15,AF7,AF15
VDD
-
1.8 V power supply
P1.8V
B22,C3,C4,C10,D3,D4,D10,
E4,G25,M1-M4,W23,W24,
AC3,AC4,AC13,AC19,AC23,
AC24,AD3,AD4,AD10,
AD13,AD19,AD23,AD24
E4,G25,M1-M4,W23,W24,
AC3,AC4,AC13,AC19,AC23,
AC24,AD3,AD4,AD10,
AD13,AD19,AD23,AD24
VDD3
-
3.3 V power supply
P3.3V
AD6
RTCVDD
-
Low power controller 1.8 V power supply
P1.8V
B13,B21,D25,K10-K17,L10-
L17,M10-M17,N10-
N17,P10-P17,R10-R17,T10-
T17,U10-U17
L17,M10-M17,N10-
N17,P10-P17,R10-R17,T10-
T17,U10-U17
GND
-
Ground for power supplies
GND
C4
Others
Typical load, but the maximum is 75 pF.
S8
SDRAM/EMI
Typical load, but the maximum is 75 pF.
S8b
SDRAM/EMI
Typical load, but the maximum is 75 pF.
E8
EMI (programmable)
Typical load, but the maximum is 75 pF.
P4
PIO
Typical load, but the maximum is 75 pF.
AE11
VDDVDACRGB
-
3.3 V power supply for RGB video DAC
VDDDAC
AE9
VDDVDACYCC
-
3.3 V power supply for YCC video DAC
VDDDAC
AD11
GNDVDACRGB
-
Ground for RGB video DAC
GNDDAC
AD9
GNDVDACYCC
-
Ground for YCC video DAC
GNDDAC
AD8
SHIELDVDAC
-
Shield ground for 2 x video DACs
GND A
AE10
IREFDACRGB
-
RGB video DAC current reference
YOUT
AE8
IREFDACYCC
-
YCC video DAC current reference
AC9
VREFDACRGB
-
RGB video DAC voltage reference
AC8
VREFDACYCC
-
YCC video DAC voltage reference
A10
VDDVPLL
-
3.3 V power for video PLL
VDDPLL
C13
VDDAUDIOFSYN
-
1.8 V dedicated power for low jitter audio clock frequency synthe-
sizer
sizer
VDDF3
B12
GNDAUDIOFSYN
-
Dedicated ground for low jitter audio clock frequency synthesizer
GNDF3
C12
VDDGENFSYN
-
1.8 V dedicated power for nonaudio clock frequency synthesizer
VDDF3
B11
GNDGENFSYN
-
Dedicated ground for nonaudio clock frequency synthesizer
GNDF3
AA4
VDDAADAC
-
3.3 V power for audio DAC
VDDADCA
AA2
VSSAADAC
-
Ground for audio DAC command switches
GNDADAC
Y4
VDDASADAC
-
3.3 V power for audio DAC substrate
VDDADAC
AB2
VCCAADAC
-
3.3 V power for audio DAC command switches
VDDA
AB3
GNDAADAC
-
Ground for audio DAC
GNDADAC
AC2
VCCASADAC
-
3.3 V power for audio DAC command switches
substrate
substrate
VDDA
AD2
IREF
I
Audio DAC output reference current
AE2
VBGFIL
I
Audio DAC filtered output reference voltage
VBGFIL
AF4
LPCLKIN
I
Low power clock input (1.8 V tolerant)
CLOCK IN
AF5
LPCLKOSC
I/O
Low power clock oscillator (1.8 V tolerant)
CLOCK
A16
NO32XTAL1
I
Select for 32 kHz clock source
0: XTAL, 1: Internal divider
0: XTAL, 1: Internal divider
TCK
A13
CLK27MA
I
Selectable input clock to PLL or for x1 mode (5 V tolerant)
CLK27MHZ
A11
CLKSPEEDSEL
I
PLL speed select (5 V tolerant)
A12
AUXCLKOUT
O
Auxiliary clock for general use (5 V tolerant)
AF6
notRESET
I
System reset (1.8 V tolerant)
SYSRESET
AD14
notWDOGRSTOUT
O
Internal watchdog timer reset (5 V tolerant)
AE14
TDI
I
Boundary scan test data input (5 V tolerant)
TDI
AC14
TMS
I
Boundary scan test mode select (5 V tolerant)
TMS
AF16
TCK
I
Boundary scan test clock (5 V tolerant)
TCK
AF14
notTRST
I
Boundary scan test logic reset (5 V tolerant)
NOTTRST
AE13
TDO
O
Boundary scan test data output (5 V tolerant)
TDO
P1
DCUTRIGGERIN
I
External trigger input to DCU (5 V tolerant)
TRIGIN
P3
DCUTRIGGEROUT
O
Signal to trigger external debug circuitry (5 V tolerant)
TRIGOUT
C23
TSIN2LBYTECLK
I/O
Transport stream bit clock (5 V tolerant)
TS2CLK
C22
TSIN2LBYTECLKVA
LID
LID
I/O
Transport stream bit clock valid edge (5 V tolerant)
TS2VAL
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