Philips PS1966C122 Bedienungsanleitung

Philips Consumer Electronics

Technical Service Data

Service and Quality

Service Publications Dept.

One Philips Drive

P.O. Box 14810

Knoxville, TN 37914

REFER TO SAFETY GUIDELINES

SAFETY NOTICE: ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE

HIMSELF WITH THE CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS

TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.

CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING

Manual 7584

Model no.: PS1966C122

First Publish: 4-16-1999

Rev. Date: 5-5-1999

Print Date: 18/11/2005

Electrical Adjustments

E8 CHASSIS SERVICE ADJUSTMENTS

REQUIRED TOOLS FOR SERVICING

Isolation Transformer

Multimeter

Oscilloscope

High Voltage (100:1) Oscilloscope Probe

Sencore VG91 Universal Video Generator

Caution: The E8 chassis incorporates a ”hot“ ground system. Always use a separate isolation

transformer when applying power to the exposed chassis.

Service Adjustment Notes:

Unless Otherwise Specified:

1. All service adjustments are ”hot“ voltagewise. For maximum safety, ensure the use of properly

insulated tools.

2. Refer to the E8 Main Chassis Printed Circuit Board for location of test points and adjustable

components.

3. Grid Locations (Ex.: D-3) next to the reference numbers for components refer to the Main Chassis

Printed Circuit Board.

Focus Adjustment

1. Tune the set to a local or cable station.

2. Adjust the Focus Control (located on the upper part of the flyback transformer) for best picture details

at high light conditions.

Degaussing the Television

1. Position the television so that the screen faces the direction it will be facing when in use.

2. Ensure the set is turned off.

3. Move a degaussing coil in a circular motion slowly around the sides and front of the set.

4. Withdraw the degaussing coil at least six feet from the television before disconnecting it from its

power source.

Service Mode

Introduction

1. There are three service modes used in the E8 chassis. They are:

a. SDM - Service Default Mode

b. SAM - Service Alignment Mode

c. CSM - Customer Service Mode

2. The Service Default Mode (SDM) is a technical aid for the service technician. It is used for setting of

options, reading error codes, and erasing error codes. This mode displays the Run Timer, Software

Version, and current option settings. Service Default Mode (SDM) also establishes a fixed,

repeatable setting of controls to allow measurements to be made. On screen display is kept at a

minimum to reduce the cluttering of wave forms with unwanted information.

3. The Service Alignment Mode (SAM) is used to make tuning adjustments, align the white tone, adjust

the picture geometry, and make sound adjustments.

4. The Customer Service Mode shows error codes and information on the TV operation settings. The

servicer can instruct the customer to enter CSM by telephone and read off the information displayed.

This helps the servicer to diagnose problems and failures in the TV set before making a service call.

5. When in a service mode, "SDM" (for Service Default Mode) or ”SAM“ (for Service Alignment Mode) or

”CSM“ (for Customer Service Mode) will be displayed (in green) in the top right corner of the screen.

All other On Screen Display (except highlighted items in SDM or SAM) will be in red.

6. It will be memorized in the EEPROM that the TV set is in SDM or SAM. This is necessary because

the TV must show up in SDM or SAM again after an ac power interrupt.

7. When the television is in SAM or SDM, all normal features (such as volume control and direct

channel access) are available.

EEPROM Replacement or Defective EEPROM

After replacing a EEPROM (or with a defective/no EEPROM) default settings will be used that enable the

set to start up and that allow access to the Service Default Mode and Service Alignment Mode.

Service unfriendly modes

In the service modes, a number of modes/features are ignored since they interfere with diagnosing or

repairing a set. These are ”service unfriendly modes.“

”Ignoring“ means that the event that is triggered is not executed; the setting remains unchanged

(Example: Timer OFF: 8:00 PM; the set will not switch OFF in service mode at 8:00PM, but the setting will

remain).

The service unfriendly modes are:

• (Sleep) timer

• Blue mute

• Auto switch off (when there is no video signal identified)

• Hotel or hospital mode

• Smart lock or blocking by V-chip

• Skipping and/or blanking of ”Not Favorite“ channels

• Automatic storing of Personal Preset settings

• Automatic user menu time-out (menu switches back or OFF automatically)

Service Default Mode (SDM)

1. The Service Default Mode (SDM), set the option codes and bytes of the set, and display the error

codes (the Power LED begins blinking procedure for error code display, if errors are detected). SDM

also overrides software protections.

The Service Default Mode (SDM) must be used when taking voltages and waveforms.

2. To enter the Service Default Mode, press the following key sequence on the remote control

transmitter:

0-6-2-5-9-6-Menu

Do not allow the display to time out between entries while keying the sequence.

SDM can also be entered by pressing the Channel Down and Volume Down keys on the local

keyboard simultaneously while in SAM mode.

When Service Default Mode is entered, the text "SDM" will be displayed in the upper right corner of

the screen.

3. When Service Default Mode is entered, the Power LED will begin blinking to display any detected

error codes, the set automatically tunes to Channel 3 (61.25 MHz), and service unfriendly modes are

disabled. All customer controls are set to predetermined values.

4. When the unit is operating in Service Default Mode, all normal on-screen displays are suppressed

and replaced by a special service display. A sample SDM display is shown below.

5. To select an option code or option byte in SDM, use the Menu Up or Menu Down keys on the remote

control.

6. To change the value of an option code, use the Menu Left or Menu Right keys.

7. To change the value of an option byte, use the Menu Left or Menu Right keys, or enter the new value

using the numeric keys on the remote control.

8. Press the Status button on the remote control to toggle the OSD (except ”SDM“) ON and OFF to

prevent the OSD from interfering with measurements and oscilloscope waveforms.

9. Press the Menu button on the remote control while in SDM to switch the software to a Virtual

Customer Mode; the text "SDM" will still be displayed in the upper right corner of the screen. In this

mode, all customer menu adjustments to the set can be made. From the Virtual Customer Mode,

press the Menu button to return to the SDM display.

10. To exit the Service Default Mode and erase the error codes, turn the unit off with the Power button on

the remote control, then unplug the ac cord.

11. To exit the Service Default Mode and save the error codes, unplug the ac cord to turn off the set.

When the set is turned on again, the Service Default Mode will still be active.

Explanation of Display:

Run Timer

The run timer counts the normal operation hours, not the standby hours. The actual value of the run timer

is displayed in SDM and CSM. The run timer displays hours in hexadecimal format. This display will

increment based on the amount of time the set has been on. The timer will also be incremented one hour

each time the set is turned on.

Software Identification, Cluster, and Version

The software identification, cluster, and version will be shown in the service main menu display.

These numbers consist of the last part of the customer identification printed on the IC package; the

screen will show ”AAABBC-X.Y“. (Example: L90US1 1.2)

− AAA is the engineering project name (Ex: L90 = L9.0).

− BB is a function specification indicating specific functionality or a region (Ex: US). Processors with the

same engineering project name and function name are interchangeable, except for the languages

they support.

− C is the language cluster number within the ”BB“ software version (Ex: 1 = English/Spanish/French)

− X is the main version number (Ex: 1)

− Y is the sub version number (Ex: 2)

− the main version number is updated with a major change of specification (incompatible with the

previous software version)

− the sub version number is updated with a minor change (backwards compatible with the previous

versions)

− if the main version number changes, the new version number is written in the EEPROM

− if the main version number changes, the default settings are loaded

− if the sub version number changes, the new version number is written in the EEPROM

− if the EEPROM is fresh, the software identification, version and cluster will be written to EEPROM

− Note: a new micro controller is considered to be compatible if it works instead of the old software and

the functionality is not significantly changed.

Error Buffer

Error codes are required to indicate failures in the television. For intermittent complaints, always check

the error buffer. A unique error code is available for:

• activated protection (error codes 1, 2, and 3)

• failing I2C device

• general I2C error

• RAM failure (e.g. internal RAM of microprocessor (IC 7600) )

Other error codes are:

• Signal processor (IC 7250) start-up error

• EEPROM check-sum error

The last five errors, remembered in the EEPROM, are shown in the service menu. This is called the error

buffer.

The error that is found last is displayed on the left, except when protection (1 to 3) is active.

Errors 1, 2, and 3 are often shown at the right of the error buffer display whenever they are detected.

Example 1:

Suppose the display shows: 8 – 11 – 2– 0 – 0

With 2 displayed at the right of the error buffer, high beam current protection is active.

Example 2:

Suppose the display shows: 11 – 4 – 5– 3 – 0

With 3 displayed at the right of the error buffer, vertical protection is active.

The following error codes have been defined:

Error Code Table

0= No error

1= X-Ray / overvoltage protection active

2= High beam current (BCI) protection active

3= Vertical protection active

4= I²C error while communicating with the sound processor (IC 7803)

5= Signal processor (IC 7250) start-up error

6= I²C error while communicating with the signal processor IC (IC 7250)

7= General I²C error *

8= Internal RAM error micro controller

9= EEPROM Configuration error (Checksum error)

10 = I²C error, EEPROM error

11 = I²C error, PLL tuner

Note: I²C = (SCL/SDA)

*General I²C error means: no I²C device is responding to the particular I²C bus.

Possible causes: SCL short circuit to GND, SDA short circuit to GND, SCL short

circuit to SDA, SDA open circuit (at IC 7600), SCL open circuit (at IC 7600)

Reading Error Codes

Error codes are displayed in the following ways:

1. By SDM display or CSM display

2. By blinking Power LED

1. If the on screen display is working, enter SDM or CSM and read the error buffer display.

2. If the on screen display is not working, do the following:

a. Remove ac power

b. Use a jumper to connect pin 0224 to pin 0228 at IC 7601 (D-3)

c. Apply ac power; read the error codes (see LED Sequence List below)

d. If there is no LED indication, take the following steps as needed:

Poweron

Press 0–6–2–5–9–6–Menu on the remote control

Note: Some indications take 30 seconds or longer to appear on the LED.

3. LED Sequence List:

a. Wait for long LED on (1.5 seconds)

b. Count the following on flashes (individual errors are separated by 1.5 seconds LED off)

Example:

Start ( 3) ( 2 ) Start

4. Displayed error codes are saved by removing the ac power. Displayed error codes are erased by

pressing the power button on the remote control or local keyboard.

Option Code and Status

The following options in SDM can be identified:

Note:All options may not be available in some sets.

OPTION OP VALUES

System SY SS (This option is not used in US models)

Option Byte 1

Option Byte 2

Option Byte 3

Option Byte 4

Option Byte 5

Option Byte 6

Option Byte 7

OB1

OB2

OB3

OB4

OB5

OB6

OB7

Option Bytes 1 through 7 are used to set 8 options simultaneously with one

byte (when the option byte is highlighted, the value can be keyed in with

the numerical buttons on remote control or changed with the Menu

Up/Down keys on the remote control).

Values = 0 – 255

See the Chassis Feature Listing to see the values for Option Bytes 1

through 7. These values can be used to set the option package for a

particular model.

Slider Bar Value Display DP OFF/ON

Animated Menu AM OFF/ON

Hospital Mode HS OFF/ON

Hotel Mode HT OFF/ON

Demo Mode DM OFF/ON

Games Mode GM OFF/ON

Clock (Volatile) CK OFF/ON

Child Lock CL OFF/ON

V-Chip VC OFF/ON

V-Chip Block Unrated VU OFF/ON

Block No Rating (V-Chip) VN OFF/ON

Smart Sound SS OFF/ON

Smart Picture SP OFF/ON

Remote Control Type RC OFF = RC0702/04 remote control / ON = All other remote controls

Channel Select Time Window TW OFF = 2-second time window / ON = 5-second time window

Surf SF OFF/ON

Video Mute (Channel Change) VM OFF/ON

Tuner Type TN OFF = Philips tuner / ON= ALPS tuner

Fine Tuning FT OFF/ON

AV1 XT OFF/ON

AV2 2X OFF/ON

Auto Cable Detect CD OFF/ON

Blue Mute BM OFF/ON

No Ident (Auto Standby) NI OFF/ON

Noise Reduction NR OFF/ON

Contrast Plus CP OFF/ON

Color Temperature CT OFF/ON

East-West Functions EW OFF/ON (This option is not used in US models)

Video Processor Standby BS OFF/ON

Video Processor Auto Startup AS OFF/ON

Bass/Treble Control/Boost BT OFF/ON

Incredible Surround IS OFF/ON

Volume Limiter VL OFF/ON

Ultra Bass UB OFF/ON

Automatic Volume Leveller (AVL) LV OFF/ON

SAP - Mono/Stereo DU OFF/ON

Audio Out (Fixed/Variable) AO OFF/ON

Sound Type ST BG/I/DK/M (Should remain on M)

Sound Board SB DB = DBX/SAP (BTSC)

EC = BTSC stereo (No SAP)

MA = Mono All

Sound Board SB DB = DBX/SAP (BTSC)

EC = BTSC stereo (No SAP)

MA = Mono All

MS = Bi Sonic (Mono by tuner, stereo by A/V jacks)

Option SY : System

Function: Set the multi system hardware configuration

Values: SS (This option is not used in US models)

OB 1 – OB 7 : Option Byte 1 – Option Byte 7

Function: Set 8 options simultaneously with one byte

(value can be keyed in with numerical buttons on remote control or changed with the

Menu Up/ Down keys on the remote control)

Values: 0 – 255

Option DP : Slider Bar Value Display

Function: Enable/disable slider bar value display in customer menu

Values: OFF = Disable slider bar value display

ON = Enable slider bar value display

Option AM : Animated Menu

Function: Enable/disable animated menu

Values: OFF = Disable animated menu display

ON = Enable animated menu display

Option HS : Hospital Mode

Function: Enable/disable the possibility to enter hospital mode

Values: OFF = Disabled, hospital mode cannot be entered

ON = Enabled, hospital mode can be entered

Option HT : Hotel Mode

Function: Enable/disable the possibility to enter hotel mode

Values: OFF = Disabled, hotel mode cannot be entered

ON = Enabled, hotel mode can be entered

Option DM : Demo Mode

Function: Enable/disable the possibility to enter demo mode

Values: OFF = Disabled, demo mode is not active

ON = Enabled, demo mode is active

Option GM : Games Mode

Function: Enable/disable games function

Values: OFF = Disabled, Games command is ignored

ON = Enabled, Games command is processed

Option CK : Clock (Volatile)

Function: Enable/disable clock function

Values: OFF = Disabled, clock menu not available

ON = Enabled, clock menu available

Option CL : Child Lock

Function: Enable/disable child lock function

Values: OFF = Disabled, child lock menu not available

ON = Enabled, child lock menu available

Option VC : V-Chip

Function: Enable/disable v-chip function (customer menu item Smartlock)

Values: OFF = Disabled, v-chip menu (customer menu item Smartlock) not available

ON = Enabled, v-chip menu (customer menu item Smartlock) available

Option VU : V-Chip Block Unrated

Function: Enable/disable V-Chip block unrated (in Smartlock menu)

Values: OFF = Disabled, V-Chip block unrated (in Smartlock menu) not available

ON = Enabled, V-Chip block unrated (in Smartlock menu) available

Option VN : Block No Rating (V-Chip)

Function: Enable/disable block no rating V-Chip (in Smartlock menu)

Option SS : Smart Sound

Function: Enable/disable smart sound function

Values: OFF = Disabled, Smart Sound command is ignored

ON = Enabled, Smart Sound command is processed

Option SP : Smart Picture

Function: Enable/disable smart picture function

Values: OFF = Disabled, Smart Picture command is ignored

ON = Enabled, Smart Picture command is processed

Option RC : Remote Control Type

Function: Choose the type of remote control to be used

Values: OFF = RC0702/04 remote control

ON = All other remote controls

Note: If changed when using the RC0702/04, this option can only be returned to the original setting

by option byte correction.

Option TW : Channel Select Time Window

Function: Select time window for channel selection

Values: OFF = 2-second time window for channel selection

ON = 5-second time window for channel selection

Option SF : Surf

Function: Enable/disable the possibility to enter surf mode

Values: OFF = Disabled, customer menu item Surf not available and A/CH command alternates

channels

ON = Enabled, customer menu item Surf available and A/CH command surfs or

alternates channels

Option VM : Video Mute (Channel Change)

Function: Enable/disable video mute during channel change

Values: OFF = Disabled, no video mute during channel change

ON = Enabled, video muted during channel change

Option TN : Tuner Type

Function: Choose the tuner type that is configured in the hardware

Values: OFF = Philips tuner (A Philips tuner will have the Philips name embossed on the side)

ON = ALPS tuner (An ALPS tuner will not have the Philips name embossed on the side)

Option FT : Fine Tuning

Function: Enable/disable fine tuning

Values: OFF = Customer menu item fine tuning disabled

ON = Customer menu item fine tuning enabled

Option XT : AV1

Function: Enable/disable external input source 1 (Ext 1)

Values: OFF = Disabled, external input source 1 (Ext 1) not available

ON = Enabled, external input source 1 (Ext 1) available

Option 2X : AV2

Function: Enable/disable external input source 2 (Ext 2)

Values: OFF = Disabled, external input source 2 (Ext 2) not available

ON = Enabled, external input source 2 (Ext 2) available

Option CD : Auto Cable Detect

Function: Enable/disable automatic detection of Cable/Broadcast during autostore.

Values: OFF = Disabled, autostore uses the selected Cable/Broadcast setting

ON = Enabled, autostore will detect and set Cable/Broadcast mode

Option BM : Blue Mute

Function: Enable/disable blue mute when no television station signal is present

Values: OFF = Disabled, no blue mute when no television station signal is present

ON = Enabled, blue mute active when no television station signal is present

Option NI : No Ident (Auto Standby)

Function: Enable/disable automatic switch to standby after 10 minutes when no television station

signal is present

Values: OFF = Disabled, no automatic switch to standby

ON = Enabled, set switches to standby after 10 minutes when no television station signal

is present

Option NR : Noise Reduction

Function: Enable/disable noise reduction function

Values: OFF = Disabled, customer menu item Noise Reduction not available

ON = Enabled, customer menu item Noise Reduction available

Option CP : Contrast Plus

Function: Enable/disable contrast plus function

Values: OFF = Disabled, customer menu item Contrast Plus not available

ON = Enabled, customer menu item Contrast Plus available

Option CT : Color Temperature

Function: Enable/disable color temperature function

Values: OFF = Disabled, customer menu item Color Temperature not available

ON = Enabled, customer menu item Color Temperature available

Option EW : East-West Functions

Function: Enable/disable east-west control function (This option is not used in US models)

Values: OFF = Disabled, east-west alignment not available in SAM (EWW, EWP, EWC, EWT)

ON = Enabled, east-west alignment available in SAM (EWW, EWP, EWC, EWT)

Option BS : Video Processor Standby

Function: Enable/disable video processor standby

Values: OFF = Disabled, video processor standby is not active

ON = Enabled, video processor standby is active

Option AS : Video Processor Auto Startup

Function: Enable/disable video processor auto-startup

Values: OFF = Enabled, video processor is in auto-startup mode

ON = Disabled, video processor is switched on under control of microcontroller

Option BT : Bass/Treble Control/Boost

Function: Enable/disable bass and treble function

Values: OFF = Disabled, customer menu items Bass and Treble not available

ON = Enabled, customer menu items Bass and Treble available

Option IS : Incredible Surround

Function: Enable/disable incredible surround function

Values: OFF = Disabled, incredible surround function not available

ON = Enabled, incredible surround function available

Option VL : Volume limiter

Function: Enable/disable volume limiter

Values: OFF = Disabled, customer menu item Volume Limiter not available

ON = Enabled, customer menu item Volume Limiter available

Option UB : Ultra Bass

Function: Enable/disable ultra bass function

Values: OFF = Disabled, ultra bass function not available

ON = Enabled, ultra bass function available

Option LV : Automatic Volume Leveller (AVL)

Function: Enable/disable automatic volume leveller function

Values: OFF = Disabled, customer menu item AVL not available

ON = Enabled, customer menu item AVL available

Option DU : SAP

Function: Set SAP configuration (sets with DBX stereo system only)

Values: OFF = Disabled, stereo/SAP not available

ON = Enabled, stereo/SAP available

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