Sharp AQUOS LC-37AD5E, Service Manual

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LC-37AD5E
5 – 15
2.8. IC4001 (RH-iXB680WJZZQ)
2.8.1 Pin Connections and short description
Pin No. Pin Name I/O Pin Function
Digital power-supply ball assignment
A8, B8, B19, B20, C8,
D8, F1, F2, F3, F4, U23,
U24, V1, V2, V3, V4,
AA23, AA24, AA25,
AA26, AC7, AC15, AD7,
AD15, AE7, AE15, AF7,
AF15 VDD — 1.6 V power supply.
B22, C3, C4, C10, D3,
D4, D10, E4, G25, M1,
M2, M3, M4, W23, W24,
AC3, AC4, AC10, AC13,
AC19, AC23, AC24, AD3,
AD4, AD10, AD13, AD19,
AD23, AD24 VDD3 — 3.3 V power supply.
AD6 RTCVDD — Low power controller 1.8 V power supply.
B13, B21, D25, K10 to
K17, L10, L11, L12, L13,
L14, L15, L16, L17, M10,
M11, M12, M13, M14,
M15, M16, M17, N10,
N11, N12, N13, N14,
N15, N16, N17, P10, P11,
P12, P13, P14, P15, P16,
P17, R10 to R17, T10,
T11, T12, T23, T14, T15,
T16, T17, U10, U11, U12,
U13, U14, U15, U16, U17 GND — Ground for power supplies.
Analog power-supply ball assignment
AE11 VDDVDACRGB — 3.3 V power supply for RGB video DAC
AE9 VDDVDACYCC — 3.3 V power supply for YCC video DAC
AD11 GNDVDACRGB — Ground for RGB video DAC
AD9 GNDVDACYCC — Ground for YCC video DAC
AD8 SHIELDVDAC — Shield ground for 2 x video DACs
AE10 IREFDACRGB — RGB video DAC current reference
AE8 IREFDACYCC — YCC video DAC current reference
AC9 VREFDACRGB — RGB video DAC voltage reference
AC8 VREFDACYCC — YCC video DAC voltage reference
A10 VDDVPLL — Supply 3.3 V power for video PLL
C13 VDDAUDIOFSYN — Supply 1.8 V dedicated power for low jitter audio clock frequency synthe-
sizer
B12 GNDAUDIOFSYN — Dedicated ground for low jitter audio clock frequency synthesizer
C12 VDDGENFSYN — 1.8 V dedicated power for non audio clock frequency synthesizer
B11 GNDGENFSYN — Dedicated ground for non audio clock frequency synthesizer
AA4 VDDAADAC — 3.3 V power for audio DAC
AA2 VSSAADAC — Ground for audio DAC command switches
Y4 VDDASADAC — 3.3 V power for audio DAC substrate
AB2 VCCAADAC — 3.3 V power for audio DAC command switches
AB3 GNDAADAC — Ground for audio DAC
AC2 VCCASADAC — 3.3 V power for audio DAC command switches substrate
AD2 IREF — Audio DAC output reference current
AE2 VBGFIL — Audio DAC filtered output reference voltage
RTC ball assignment
AF4 LPCLKIN I Low power clock input (1.8V tolerant).
AF5 LPCLKOSC O Low power clock oscillator (1.8V tolerant).
A16 NO32XTAL I Select for 32kHz clock source. 0:XTAL 1:Internel divider
System ball assignment
A13 CLK27MA I Selectable input clock to PLL or for x1 mode (5 V tolerant)
A11 CLKSPEEDSEL I PLL speed select (5 V tolerant)
A12 AUXCLKOUT O Auxiliary clock for general use (5 V tolerant)
AF6 not RESET I System reset (1.8 V tolerant)
AD14 not WDOGRSTOUT O Internal watchdog timer reset (5 V tolerant)