Toshiba TLP511U, TLP511E, TLP510E Power Supply Reset Process, Non-volatile Memory Control Process

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5-3. Power Supply Reset Process

In the power supply reset process, power supply reset IC (RN5VD27A), QL004 is employed.

The reset IC,QL004, develops the reset signal when the power supply voltage for the microprocessor varies and becomes lower than the specified voltage, and sends the signal to the reset terminal of the system microprocessor (QL002).

5-4. Non-volatile Memory Control Process

In the non-volatile memory process, data reading and saving for various adjustments are carried out on the non-volatile memory, QL006 (CAT24C16J).

When the power (AC) is on, all the adjustment data are read out by the system microprocessor (QL002), then the previous status is realized.

When saving the data, all the adjustment data are written by the system microprocessor (QL002), then the current status is preserved.

However, if a failure (such as power interruption due to lightning, etc.) occurs during the adjustment data writing, a data error may occur. If the data is determined as incorrect, the initial data memorized on the system microprocessor (QL002) is read out and stored on the non-volatile memory.

5-5. Remote Control Reception Process

In the remote control reception process, a remote control unit (CT-9925) connected to the remote control terminal emits a remote control signal and a remote control signal receive section on the front panel, the rear panel or the camera arm (for TLP511) decodes the signal.

The remote control signals for rear panel and camera section (for TLP511) are selected by QL012 buffer (TC74HC125AF). Then both signals are mixed with the remote control signal for front panel through QL005 buffer (74HC14AF).

Finally, the signal mixed is supplied to the remote control terminal of the system microprocessor (QL002).

5-6. RS-232C Transmission/Reception Process

In the RS-232C transmission/reception process, an RS- 232C signal entered through the RS-232C connector (D- SUB 9P) is decoded in the RS-232C interface (mPD4721), and fed to RXD1 terminal of the system microprocessor (QL002).

In the RS-232C transmission process, RS-232C signal developed from TXD0 terminal of the system micropro- cessor (QL002) is decoded in the RS-232C interface (mPD4721) and fed to the camera microprocessor section.

 

 

 

 

 

5-7. Status Read Process

 

 

 

 

 

 

 

In the status read process, the following status shown in

 

 

 

 

 

the table below are read by QL010 (74HC165AF) and

 

 

 

 

 

the error process corresponding to each status is carried

 

 

 

 

 

out.

 

 

 

 

 

 

 

 

 

Table 5-7-1 shows the contents of the status read signals

 

 

 

 

 

and the logic.

 

 

 

 

 

Table 5-7-1 The contents of the status read signals and the logic

 

 

 

 

 

 

 

 

 

 

 

 

 

Signal name

A

B

C

D

 

E

F

 

G

H

Pin No.

11

12

13

14

 

3

4

 

5

6

QL010

FAN1. ER

FAN1. SW

FAN2. ER

 

 

TEMP1. ER

 

 

LAMP. ER

MAIN. ER

(L)

Abnormal

Normal

Abnormal

 

 

Normal

 

 

Abnormal

Abnormal

(H)

Normal

Abnormal

Normal

 

 

Abnormal

 

 

Normal

Normal

 

 

 

 

 

 

 

 

 

 

 

5-4

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Contents TLP511U TLP510U TLP511E TLP510E Contents Output Control Main Power Supply CircuitVoltage Switching DescriptionOver-current Protection Overheat ProtectionSupplement Configuration Lamp Power Supply Circuit Lamp DriverName Description Optical SystemXGA 1.3 inch 3 plates system Outline G.B. Drive Circuit2nd line 1st frame1 Terminal description Basic specificationOperation Description Basic Component Outline of Liquid Crystal PanelName Function 2 Input terminal function descriptionSystem Outline Microprocessor1 System block diagram 1 Terminal functions of the system microprocessor System MicroprocessorRS-232C Transmission/Reception Process Power Supply Reset ProcessRemote Control Reception Process Non-volatile Memory Control Process1 Contents of the status display signals and the logic Status Display ProcessOn-screen Display Process 11-1 IC control for each kind of panel system Video System Control ProcessPanel System Control Process I2C control for each kind of video systemDrive System Control Process Various Display Modes12-1 Each kind of the drive system IC control 14-1 Applicable signal Applicable Signal15-2 RS-232C communication conditions 15-1 RS-232C connection signalsPin No Signal name Signal content RS-232C Control MethodCommand Content 15-3 RS-232C command listConv Forc Exchange Digital CircuitPLL Circuit Video Signal Format ConversionPanel Driving Timing Signal Generation Signal Format MeasurementEach IC Description PLL IC CXA3106Q QX028 for RGB Signals5. A/D Converter CXA3026Q QX201, QX401 and QX601 PLL IC TLC2932 QX029 for Video SignalTiming Signal Generation PLD QX009 Sync Process IC SYG QX004INV Memory Picture Size of View Conversion IC T-FORCQX204, QX404, QX604 9. D/A ConverterCircuit Component Video Circuit1 Block diagram RGB Signal Input Signal Switch SectionVideo Signal Audio Signal2 Internal block diagram of CXA1855Q Video Demodulation Block 1 Terminal function of TC9090AN1. Y/C Separation Circuit Video/Color Circuit 4 Pin configuration of TDA9141Pin No Name Function Luminance Y Signal Process CircuitSDA Color Signal Process CircuitPicture Sharpness Correction Circuit Pin Name Function9 Block diagram of TDA4672 RGB Demodulation 4 Terminal function of TDA4780 Audio Circuit 12 Audio circuit block diagramSync Signal Process Circuit RGB Signal Switch Circuit output terminal for SYNC/GVIDEO/VD TC7S08F RGB Signal Amplifier SectionMicroprocessor Interface QB012 M52347FP Input status QB025 CXA1315M HD. COMP. POS NON VD POS VD NEG HD. COMP. NEG HD. HD. CompNON VD POS VD NEG Pre-amp and AD Coversion Circuit Video Signal Process CircuitPower Supply Circuit CCD and Drive Circuit1 CCD camera circuit block diagram Winding Winding specificationOperating Description Coil Terminal TurnsFluorescent does not turn on TroubleshootingToshiba America Consumer PRODUCTS, INC