RCA P52939YX1, PTK195S1B Diagram

SAFETY PRECASAFETY PRECA

SAFETY PRECA

SAFETY PRECASAFETY PRECA

SERSER

VICE VICE

SER

SERSER

Only qualified service technicians who are familiar with safety checks and guidelines should perform service work. Before replacing parts, disconnect power source to protect electrostatically sensitive parts. Do not attempt to modify any circuit unless so recommended by the manufacturer. When servicing the receiver, use an isolation transformer between the line cord and power receptacle.

SERSER

SER

SERSER

Use EXTREME CAUTION when servicing the high voltage circuits. To discharge static high voltage, connect a 10K ohms resistor in series with a test lead between the receiver ground and CRT anode lead. DO NOT lift the CRT by the neck. Always wear shatterproof goggles when handling the CRT to protect eyes in case of implosion.

X-RAX-RA

X-RA

X-RAX-RA

Be aware of the instructions and procedures covering X-ray radiation. In solid-state receivers and monitors, the CRT is the only potential source of X-rays. Keep an accurate high voltage meter available at all times. Check meter calibration periodically. Whenever servicing a receiver, check the high voltage at various brightness levels to be sure it is regulating properly. Keep high voltage at rated value, NO HIGHER. Excessive high voltage may cause X-ray radiation or failure of associated components. DO NOT depend on protection circuits to keep voltage at rated value. When troubleshooting a receiver with excessive high voltage, avoid close contact with the CRT. DO NOT operate the receiver longer than necessary. To locate the cause of excessive high voltage, use a variable AC transformer to regulate voltage. In present receivers, many electrical and mechanical components have safety related characteristics which are not detectable by visual inspection. Such components are identified by a

# on both the schematic and the parts list. For SAFETY, use only

equivalent replacement parts when replacing these components.

GENERAL GUIDELINESGENERAL GUIDELINES

GENERAL GUIDELINES

GENERAL GUIDELINESGENERAL GUIDELINES

Perform a final SAFETY CHECK before returning receiver to customer. Check repaired area for poorly soldered connections, and check entire circuit board for solder splashes. Check board wiring for pinched wires or wires contacting any high wattage resistors. Check that all control knobs, shields, covers, grounds, and mounting hardware have been replaced. Be sure to replace all insulators and restore proper lead dress.

WARNINGWARNING

VICE

WARNING

VICE VICE

WARNINGWARNING

VICING VICING

VICING

VICING VICING

Y RADIAY RADIA

Y RADIA

Y RADIAY RADIA

THE HIGH THE HIGH

THE HIGH

THE HIGH THE HIGH

TION AND HIGH TION AND HIGH

TION AND HIGH

TION AND HIGH TION AND HIGH

OLOL

GE AND CRGE AND CR

GE AND CR

GE AND CRGE AND CR

OLOL

GE LIMITSGE LIMITS

GE LIMITS

GE LIMITSGE LIMITS

UTIONSUTIONS

UTIONS

UTIONSUTIONS

SAFETY CHECKS — FIRE AND SHOCK HAZARDSAFETY CHECKS — FIRE AND SHOCK HAZARD

SAFETY CHECKS — FIRE AND SHOCK HAZARD

SAFETY CHECKS — FIRE AND SHOCK HAZARDSAFETY CHECKS — FIRE AND SHOCK HAZARD

Cold LeakaCold Leaka

Cold Leaka

Cold LeakaCold Leaka

Unplug the AC cord, connect a jumper across the plug prongs, and turn the power switch on (if applicable). Use an ohmmeter to measure the resistance between the jumped AC plug and any exposed metal cabinet parts such as antenna screw heads, control shafts, or handle brackets. Exposed metal parts with a return path should measure between 1M ohms and 5.2M ohms. Parts without a return path must measure infinity.

Hot LeakaHot Leaka

Hot Leaka

Hot LeakaHot Leaka

Plug the AC cord directly into an AC outlet. DO NOT use an isolation transformer. Use a 1500 ohms, 10W resistor in parallel with a .15µF capacitor to connect between any exposed metal parts on the receiver and a good earth ground. (See figure below.) Use an AC voltmeter with at least 5000 ohms per volt sensitivity to measure the voltage across the resistor. Check all exposed metal parts and measure voltage at each point. Voltage measurements should not exceed .75VAC, 500µA. Any value exceeding this limit constitutes a potential shock hazard and must be corrected. If the AC plug is not polarized, reverse the AC plug and repeat exposed metal part voltage measurement at each point.

e Chece Chec

e Chec

e Chece Chec

ks fks f

ks f

ks fks f

e Current Chece Current Chec

e Current Chec

e Current Chece Current Chec

or Receiveror Receiver

or Receiver

or Receiveror Receiver

s with Isolated Grs with Isolated Gr

s with Isolated Gr

s with Isolated Grs with Isolated Gr

oundound

ound

oundound

PF GOLD 18PF GOLD 18

PF GOLD 18

Error Codes ............................................8

IC Functions ...........................................7

Important Parts Information ...................6

Main Tuner Voltage Chart ......................5

Miscellaneous Adjustments ....................3

Parts List .......................................... 9, 10

Placement Chart ..................................... 1

Safety Precautions .................................. 1

Schematic Component Location ............8

Schematic Notes ..................................... 5

Schematics

PF GOLD 18

Test Equipment....................................... 6

INDEXINDEX

INDEX

INDEXINDEX

Audio ...............................................7

Component Video............................ 8

CRT (Red, Green & Blue) .............. 2

CRT Convergence ...........................4

CRT Convergence Power Supply.... 3

Gemstar 3 ........................................ 6

Main Tuner ...................................... 5

PIP ...................................................4

PIP Tuner Board.............................. 5

Power Supply ..................................3

System Control ................................6

Television ........................................ 2

PF GOLD 18

Technical Service Data

RCARCA

RCA

RCARCA

Model P52939YX1 (Chassis PTK195S1B_S1)Model P52939YX1 (Chassis PTK195S1B_S1)

Model P52939YX1 (Chassis PTK195S1B_S1)

Model P52939YX1 (Chassis PTK195S1B_S1)Model P52939YX1 (Chassis PTK195S1B_S1)

Representative Model

or seror ser

or ser

or seror ser

Essential coEssential co

Essential co

Essential coEssential co

vicing a televicing a tele

vicing a tele

vicing a televicing a tele

veravera

vera

veravera

vision receivervision receiver

vision receiver

vision receivervision receiver

......

...

......

PF GOLD 18

HIGH HIGH

OLOL

HIGH

HIGH HIGH

Apply 120VAC. Use the remote to set customer controls for normal operation. Momentarily short BC14901 base of Q14901 to ground. The receiver should lose raster and sound. If receiver does not lose raster and sound, the shutdown circuit should be repaired. To resume normal operation, remove AC power for approximately 30 seconds and then turn the receiver on.

The listing of any available replacement part herein in no case constitutes a recommendation, warranty, or guarantee by SAMS Technical Publishing as to the quality and suitability of such replacement part. The numbers of the listed parts have been compiled from information furnished to SAMS Technical Publishing by the manufacturers of the specific type of replacement part listed.

Reproduction or use, without express permission, of editorial or pictorial content, in any manner, is prohibited. No patent liability is assumed with respect to the use of the information contained herein.

5436 West 78th Street Indianapolis, IN 46268-4149

Printed in the United States of America 5 4 3 2 1

e 1e 1

PF GOLD 18 PF GOLD 18

e 1

PF GOLD 18

e 1e 1

PF GOLD 18 PF GOLD 18

GE SHUTDOGE SHUTDO

GE SHUTDO

OLOL

GE SHUTDOGE SHUTDO

WN WN

TESTTEST

TEST

TESTTEST

02PT02022

UPC

HERE

MODEL P52939YX1 (CHASSIS PTK195S1B_S1)MODEL P52939YX1 (CHASSIS PTK195S1B_S1)

MODEL P52939YX1 (CHASSIS PTK195S1B_S1)

RCARCA

RCA

For Supplier AdFor Supplier Ad

For Supplier Ad

For Supplier AdFor Supplier Ad

See PHOSee PHO

See PHO

See PHOSee PHO

OFOF

CT AnnCT Ann

CT Ann

CT AnnCT Ann

dress,dress,

dress,

dress,dress,

ual Indeual Inde

ual Inde

ual Indeual Inde

ScSc

hematicshematics

•

hematics

ScSc

hematicshematics

Component locationsComponent locations

•

Component locations

Component locationsComponent locations

arar

ts listts list

•

ts list

arar

ts listts list

Coverage includes these additional models and chassis:

ModelsModels

Models

ModelsModels

P52939YX2 PTK195S16B_S1 P52939YX3 PTK195S2B_S2 P61960YX1 PTK195Y06T_Y

DECEMBER DECEMBER

DECEMBER

DECEMBER DECEMBER

2002 PF GOLD 18 2002 PF GOLD 18

2002 PF GOLD 18

2002 PF GOLD 18 2002 PF GOLD 18

ChassisChassis

Chassis

ChassisChassis

e 1e 1

PF GOLD 18 PF GOLD 18

e 1

PF GOLD 18

e 1e 1

PF GOLD 18 PF GOLD 18

PF GOLD 18 PPF GOLD 18 P

PF GOLD 18 P

PF GOLD 18 PPF GOLD 18 P

e 1e 1

e 1

e 1e 1

RCA MODEL P52939YX1 (CHASSIS PTK195S1B_S1)

RCA MODEL P52939YX1 (CHASSIS PTK195S1B_S1)RCA MODEL P52939YX1 (CHASSIS PTK195S1B_S1)

PF GOLD 18 PPF GOLD 18 P

PF GOLD 18 P

PF GOLD 18 PPF GOLD 18 P

e 1e 1

e 1

e 1e 1

e 2e 2

PF GOLD 18 PF GOLD 18

e 2

PF GOLD 18

e 2e 2

PF GOLD 18 PF GOLD 18

PF GOLD 18 PPF GOLD 18 P

PF GOLD 18 P

PF GOLD 18 PPF GOLD 18 P

e 2e 2

e 2

e 2e 2

PF GOLD 18 PF GOLD 18

e 2

PF GOLD 18

e 2e 2

PF GOLD 18 PF GOLD 18

RCA MODEL P52939YX1 (CHASSIS PTK195S1B_S1)

RCA MODEL P52939YX1 (CHASSIS PTK195S1B_S1)RCA MODEL P52939YX1 (CHASSIS PTK195S1B_S1)

PF GOLD 18 PPF GOLD 18 P

PF GOLD 18 P

PF GOLD 18 PPF GOLD 18 P

e 2e 2

e 2

e 2e 2

e 3e 3

PF GOLD 18 PF GOLD 18

e 3

PF GOLD 18

e 3e 3

PF GOLD 18 PF GOLD 18

PF GOLD 18 PPF GOLD 18 P

PF GOLD 18 P

PF GOLD 18 PPF GOLD 18 P

e 3e 3

e 3

e 3e 3

PF GOLD 18 PF GOLD 18

e 3

PF GOLD 18

e 3e 3

PF GOLD 18 PF GOLD 18

PFGOLD 18 PPFGOLD 18 P

PFGOLD 18 P

PFGOLD 18 PPFGOLD 18 P

e 3e 3

e 3

e 3e 3

MISCELLANEOUS ADJUSTMENTS

SERSER

VICE MENUVICE MENU

SER

VICE MENU

SERSER

VICE MENUVICE MENU

To access the service menu, turn the receiver on, press the menu button on the front panel, and hold it down while pressing the power button. While holding down the menu button, release the power button and press the volume + button. The screen will display a one line menu, on the left the parameter P0, and on the right the value of that parameter V0. Release buttons. Adjustments are made by selecting the proper parameter and changing the value of that parameter. To change the parameter number use channel up and down buttons. To adjust the current value of that parameter use volume + and - buttons. To access and change any of the adjustments, the proper parameter pass number must be entered. This information is listed at the beginning of the alignment. When these parameters are modified, the T-Chip and the corresponding EEPROM are updated. All service adjustments are bus controlled, except focus and screen.

NOTE: In order to adjust the RF AGC, audio or video levels, tuner, PIP, or stereo circuits, the Chipper Check hardware and software must be used. This can be purchased from Thomson Electronics.

SERSER

VICE ADJUSTMENT PARAMETERSVICE ADJUSTMENT PARAMETERS

SER

VICE ADJUSTMENT PARAMETERS

SERSER

VICE ADJUSTMENT PARAMETERSVICE ADJUSTMENT PARAMETERS

arameterarameter

arameter

arameterarameter

No.No.

No.

No.No.

0 Pass number for service adjustment Must set to 76 - May not advance until value is set to 76.

1 Error Code 1 0 0 - 255 Displays the first error detected. Set to 0 before exiting.

2 Error Code 2 0 0 - 255 Displays the second error detected. Set to 0 before exiting.

3 Error Code 3 0 0 - 255 Displays the last error detected. Set to 0 before exiting.

4 Horizontal Phase 10 0 - 15 Tune in a crosshatch pattern, adjust to center the pattern on

5 EW DC (Width) 16 0 - 31 Tune in a crosshatch pattern, adjust for slight horizontal overscan. 6 EW Amplitude 8 0 - 15 Set value to 8. 7 EW Tilt 8 0 - 15 Set value to 8. 8 Top Corner Pin Correction 2 0 - 7 Set value to 2. 9 Bottom Corner Pin Correction 2 0 - 7 Set value to 2. 10 Vertical DC 33 0 - 63 Tune in a crosshatch pattern, adjust to center vertically. 11 Vertical Size 84 0 - 127 Tune in a crosshatch pattern, adjust for slight vertical overscan. 12 Vertical Countdown Mode 0 0 - 3 Set value to 0. ( 0 = Standard, 1 = Non-Standard, 2 = 50Hz,

13 Red Bias 30 0 - 127 Press menu button on the TV set for setup line. 14 Green Bias 15 0 - 127 Press menu button on the TV set for setup line. 15 Blue Bias 34 0 - 127 Press menu button on the TV set for setup line. 16 Red Drive 41 0 - 63 17 Green Drive 33 0 - 63 18 Blue Drive 32 0 - 63 19 Gemstar Horizontal OSD Position 166 0 - 255 Set value to 166. 20 Gemstar Vertical OSD Position 68 0 - 255 Set value to 68. 21 Gemstar PIP Horizontal Position 40 0 - 255 Set value to 40. 22 Gemstar PIP Vertical Position 43 0 - 255 Set value to 43. 23 Gemstar PIP Window Vertical Size 3 0 - 13 Set value to 3.

arameter Namearameter Name

arameter Name

arameter Namearameter Name

parameters.

On SetOn Set

On Set

On SetOn Set VV

aluealue

alue

aluealue

DIGITDIGIT

AL CONVERGENCEAL CONVERGENCE

DIGIT

AL CONVERGENCE

DIGITDIGIT

AL CONVERGENCEAL CONVERGENCE

Enter service mode. Using the remote control from a position that enables you to have clear details of the picture, press the VOL UP button to advance the Value range to “80”, then press CH UP. The incoming Video signal will be blanked out and a crosshatch pattern with a small yellow centered cursor will be displayed. The volume and channel buttons will move the cursor up, down, left, and right in single steps. The four navigation move buttons on the remote will adjust the selected color at the cursor point. The green color will be stationery, the red and blue colors are to be adjusted to the green. To select between the Red, or Blue adjustment press the INFO or DISPLAY button on the remote control. When INFO button is pressed the cursor color change from yellow to cyan indicating that the color to be adjusted is the blue instead of the red. Pressing the power button on the remote will end and save changes to the DigiCon EEPROM, and the screen will return to normal signal reception.

NOTE: Before making any changes in the service adjustments its recommended to keep a record of the on set values.

aluealue

alue

aluealue

RangRang

CommentComment

Comment

CommentComment

See Error Codes Chart.

the screen.

3 = 48Hz )

Rang

RangRang

RCA MODEL P52939YX1 (CHASSIS PTK195S1B_S1)

RCA MODEL P52939YX1 (CHASSIS PTK195S1B_S1)RCA MODEL P52939YX1 (CHASSIS PTK195S1B_S1)

PF GOLD 18 PPF GOLD 18 P

PF GOLD 18 P

PF GOLD 18 PPF GOLD 18 P

e 3e 3

e 3

e 3e 3

+ 28 hidden pages