Philips 37PF7320/93 Spezifikationen PDF herunterladen (Seite 83)

Circuit Descriptions, Abbreviation List, and IC Data Sheets

EN 83LC4.9A AA 9.

• For the case of AP, the standard consists of BG/DK/I/M for

a Multi-System set. The diversity here will then depend on

the region. AP China can have a Multi-System and I/DK

version. For India, it might only be BG standard.

9.8.2 Functionality

The features available in the Hercules are as follows:

• Treble and Bass Control.

• Surround Sound Effect that includes:

– Incredible Stereo.

– Incredible Mono.

– 3D Sound (not for AV Stereo).

– TruSurround (not for AV Stereo).

– Virtual Dolby Surround, VDS422 (not for AV Stereo).

– Virtual Dolby Surround, VDS423 (not for AV Stereo).

– Dolby Pro-Logic (not for AV Stereo).

• Bass Feature that includes:

– Dynamic Ultra-Bass.

– Dynamic Bass Enhancement.

– BBE (not for AV Stereo).

• Auto-Volume Leveler.

• 5 Band Equalizer.

• Loudness Control.

All the features stated are available for the Full Stereo versions

and limited features for the AV Stereo

9.8.3 Audio Amplifier

The audio amplifier part is very straightforward. It uses two

integrated TDA8931T power amplifiers for the L and R

channels; each amplifier IC is able to deliver a maximum output

of 20 W

RMS

continuously in a 4-6 ohm speaker without needing

a heatsink.

The operating supply for the amplifier may range from 12 V to

32 V; in the LC04x TV set, depending on the model, supply

voltages of 18 V (for the 5 W / 8 ohm version) or 24 V (for the

15 W / 4 ohm version) are used.

Muting is done via the SOUND_ENABLE line connected to pins

7 of both amplifier-ICs, which comes from the Hercules.

9.8.4 Audio: Lip Sync

No Lip Sync adjustments are neccessary in this model.

9.9 Control

9.9.1 Hercules

The System Board has two main micro-controllers on board.

These are:

• On-chip x86 micro-controller (OCM) from Genesis LCD or

plasma TV/Monitor Controller.

• On-chip 80C51 micro-controller from Philips

Semiconductor UOCIII (Hercules) series.

Each micro-controller has it own I

C bus which hosts its own

internal devices.

The Hercules is integrated with the Video and Audio Processor.

For dynamic data storage, such as SMART PICTURE and

SMART SOUND settings, an external NVM IC is being used.

Another feature includes an optional Teletext/Closed Caption

decoder with the possibility of different page storage depending

on the Hercules type number.

9.9.2 Block Diagram

The block diagram of the Micro Controller application is shown

below.

Figure 9-7 Micro Controller block diagram

9.9.3 Basic Specification

The Micro Controller operates at the following supply voltages:

• +3.3 V

at pins 4, 88, 94, and 109.

• +1.8 V

at pins 93, 96, and 117.

•I

C pull up supply: +3.3V

9.9.4 Pin Configuration and Functionality

The ports of the Micro Controller can be configured as follows:

• A normal input port.

• An input ADC port.

• An output Open Drain port.

• An output Push-Pull port.

• An output PWM port.

• Input/Output Port

The following table shows the ports used for the LC04 control:

Table 9-2 Micro Controller ports overview

The description of each functional pin is explained below:

Pin Name Description Configuration

97 INT0/ P0.5 IR INT0

98 P1.0/ INT1 TV_IRQ INT2

99 P1.1/ T0 TV_SC_COM P1.1

102 P0.4/ I2SWS EXT_MUTE P0.4

103 P0.3/ I2SCLK Lip Sync I2SCLK

104 P0.2/ I2SDO2 NVM_WP P0.2

105 P0.1/ I2SDO1 Lip Sync I2SDO1

106 P0.0/ I2SDI/O Lip Sync I2SDI/O

107 P1.3/ T1 PC-TV_LED P1.3

108 P1.6/ SCL SCL SCL

109 P1.7/ SDA SDA SDA

111 P2.0/ TPWM SOUND_ENABLE P2.0

112 P2.1/ PWM0 (for future use) -

113 P2.2/ PWM1 (for future use) -

114 P2.3/ PWM2 SEL_IF P2.3

115 P3.0/ ADC0 Light Sensor - SDM ADC0

116 P3.1/ ADC1 STATUS_1 ADC1

119 P3.2/ ADC2 STATUS_2 ADC2

120 P3.3/ ADC3 KEYBOARD ADC3

122 P2.4/ PWM3 STANDBY P2.4

123 P2.5/ PWM4 (for future use) -

126 P1.2/ INT2 (for future use) -

127 P1.4/ RX HERC_RESET -

128 P1.5/ TX POWER_DOWN P1.5

HERCULES SCALER

Tuner

ComPair

NVM

Sound

Amp

MUX

NVM

GPROBE for Debug

or ComPair(Scaler)

SDA

SCL

TV_IRQ

TV_SC_COM

+3V3STBY

1407

1406

1405

PC_DET

SD_PCHD_SEL

PC_HD_SEL

POWER_DOWN

LAMP_ON_OFF

PANEL_PWR_CTL

HD_FILTER

BACK_LIGHT_ADJ1

Flash ROM

GPIO2

NVM_WP

IIC BUS 2

NVRAM

_SDA

NVRAM

_SCL

187193194

(GPIO4)

(GPIO5)

(GPIO6)

(PBIAS)

(PPWR)

(PWM1)

(GPIO11/

PWM0)

78 DDC_SDA_VGA

77 DDC_SCL_VGA

82 GPIO1

81 GPIO0

+3V3STBY

111

GPIO23

90 GPIO7

ROM_ADD0-17

ROM_DATA0-7

5 6 7

103 106 107 108

HIGH or

LOW

level input

IIC BUS1

NVM_WP

Sound_Enable

HREC

RST

Sel IF/

SDM

Status1

Light

Sense

TV_IR

P50_LINE_ITV_IR_SW

EXT_MUTE

Standby

POWER

DOWN

127

P1.4

114

P2.3

116

ADC1

115

ADC0

123

P2.5

INT0

102

P0.4

122

P2.4

126

INT2

128

P1.5

SDA 109

SCL 108

INT1 98

P1.1 99

Keyboard

ADC3 120

111

P2.0

104

P0.2

E_14490_062.eps

160904

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