LC-37AD5E (serv.man5). Major IC Informations - Sharp TV Service Manual (repair manual). Page 15

LC-37AD5E

5 – 15

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)