Page 3 - PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS
2 PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY. NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC-TURER'S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT ...
Page 7 - ENTER SERVICE MODE
! "# " $ " "% $# $# $ && $ ' ENTER SERVICE MODE 1. Select the Pr 91.2. Adjust “Sparpness” to 0.3. Enter the service mode using the following keys. R ! ! ! ! G ! ! ! ! MENU. 1. AFT 1) Set a Signal Generator with RF FREQUENCY = 38.9MHz, 34.2MHz (L’) RF OUTPUT LEVEL = 80 ±±±± 5 ...
Page 8 - to
2. SCREEN 1) Receive the Retma pattern and heat run over 15 minutes.2) Adjust the “R, G BIAS, R, G DRIVE” to 0, “B BIAS” to 127, “B DRIVE” to 32. Adjust the screen volume that the Retma pattern reach to the cut-off point. 3. WHITE BALANCE 1) Receive the Full white pattern and heat run over 15 minute...
Page 9 - CENTER; The VERTICAL CENTER adjustment; HORIZONTAL CENTER; or VOL –“ keys to adjust the picture centering.
6. GEOMETRY 6.1 VERTICAL CENTER 1) Set the TV to “NORMAL I” mode.2) Enter the service mode.3) Locate the cursor at “V. CENTER” then press “VOL +” or “VOL – “ keys to adjust the center line with the mechanical center marks of the CRT. 6.2 VERTICAL SIZE ∗∗∗∗ The VERTICAL CENTER adjustment has to be do...
Page 11 - ON-SCREEN-DISPLAY AND TELETEXT DATA SLICER; Device Summary
November 1998 1/202 Rev. 2.2 ST92195B 32-64K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY AND TELETEXT DATA SLICER ■ Register File based 8/16 bit Core Architecturewith RUN, WFI, SLOW and HALT modes ■ 0°C to +70°C operating temperature range ■ Up to 24 MHz. operation @ 5V±10% ■ Min. instruction cycle time: 1...
Page 12 - GENERAL INFORMATION; The ST92195 microcontroller is developed and
7/202 ST92195B - GENERAL INFORMATION 1 GENERAL INFORMATION 1.1 INTRODUCTION The ST92195 microcontroller is developed and manufactured by STMicroelectronics using a pro-prietary n-well HCMOS process. Its performancederives from the use of a flexible 256-register pro-gramming model for ultra-fast cont...
Page 16 - . Video color analog DAC; FB; tion input to OSD. Positive or negative polarity.; Horizontal/Composite sync; This pin must be tied; GND Digital circuit ground.
11/202 ST92195B - GENERAL INFORMATION PIN DESCRIPTION (Cont’d) RESET Reset (input, active low). The ST9+ is ini- tialised by the Reset signal. With the deactivationof RESET, program execution begins from theProgram memory location pointed to by the vectorcontained in program memory locations 00h and...
Page 17 - Figure 4. ST92195 Required External components
12/202 ST92195B - GENERAL INFORMATION Figure 4. ST92195 Required External components V C C V C C V C C V C C P 2 0 P 2 5 P 0 7P 0 6P 0 5P 0 4P 0 3P 0 2P 0 1P 0 0 P 3 5 P 3 6 P 3 4 P 2 1P 2 2P 2 3P 2 4 P 3 7 P 5 0 P 4 7P 4 6P 4 5P 4 4P 4 3P 4 2P 4 1P 4 0 P 5 1 Y 1 4 M h z C 1 8 2 . 2 n F R 6 1 5 k C ...
Page 18 - Important; logic levels only and are not true open drain.; Table 1. ST92195 I/O Port Alternate Function Summary
13/202 ST92195B - GENERAL INFORMATION PIN DESCRIPTION (Cont’d) P0[7:0], P2[5:0], P3[7:4], P4[7:0], P5[1:0] I/O Port Lines (Input/Output, TTL or CMOS com- patible). 28 lines grouped into I/O ports, bit programmableas general purpose I/O or as Alternate functions(see I/O section). Important : Note tha...
Page 20 - IC DESCRIPTION; POWER CONTROL MODULE; KSE
IC DESCRIPTION I801 POWER CONTROL MODULE PIN NO DESCRIPTION PIN NO DESCRIPTION 1 GATE DRIVE1 10 +12V INPUT 2 OCP 11 POWER CONTROL 3 SOURCE 12 NC 4 GND1 13 GND2 5 GATE 14 +133V INPUT 6 GATE DRIVE2 DPM 001 TI KSE 1 2 3 4 5 6 10 11 12 13 14
Page 21 - BUS CONTROLLED MULTISTANDARD; FEATURES
August 1999 - V4.2 - 1/72 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. STV223XD/223X/224X PRODUCT PREVIEW BUS CONTROLLED MULTISTANDARD ONE CHIP TV PROCESSOR FEATURES ■ I 2 C BUS CONTROL. ■ PIF CIRCUIT WITH ...
Page 27 - CVBS
I501 I701 MICOM U101 TUNER SF101 SAW FILTER #2 #3 #14 #13 SDA SCL #12 #13 #50 #51 X701 4MHz #21 #26 CVBS #12 #16 33V 5V Check IF AGC voltage Check RF AGC voltage Check clock/data signal Check the crystal Check the voltages Check the waveform #21 #59 Check HVCC(8V) IF VCC(5V) I501 T402 FBT #63 Check ...
Page 28 - Check audil output signal of I501 #8; NG : Go to the figure E
33V 5V Check audil output signal of I501 #8 NG : Go to the figure E OK : Go to the figure F E F I501 I701 MICOM U101 TUNER SF102 SAW FILTER #2 #3 #14 #13 SDA SCL #8 #9 #50 #51 X701 4MHz #6 #12 Check IF AGC voltage Check clock/data signal Check the crystal Check SIF input signal Check Audio output si...
Page 29 - NO VERTICAL DEFLECTION
#26 I501 #53 #43 #44 #45 composit video in Check CVBS waveform Check the crystal Check R/G/B signal X502 R OUT B OUT G OUT I301 Vertical D.Y #3(Output) #9 #2 #10 VCC 25V Check the voltage (25V) D303 C306 Check the waveform #8 #7 Inver Input #3 Check vertical signal I501 #62 Vertical output #6 C305 M...
Page 30 - REMOTE CONTROL DOES NOT OPERATE
I701 MICOM V.SYNC IN Check the signal (50/60Hz) 7. REMOTE CONTROL DOES NOT OPERATE 6. NO ON-SCREEN DISPLAY I501 #39 Check the signal (15.625KHz) H.SYNC IN #38 SDA SCL Check clock/data signal OSD R OSD G OSD B FAST BLANK #12 #11 #10 #9 #50 #49 #48 #47 Check OSD R/G/B/FB signal Check the crystal I701 ...
Page 37 - Mechanical Exploded View
Page 38 - WARNING; : Service should not be attempted by anyone unfamiliar with the; Product Safety Notice; nals before soldering.; Important Service Notes
1. X-ray Radiation Rrecaution 1) Excessive high voltage can produce potentially hazardous X-RAY RADIA- TION. To avoid such hazards, the high voltage must not be above the spec-ified limit. The nominal value of the high voltage of this receiver is25.5kv(20”/21”) & 23.5kv(14”)at zero beam current ...
Page 39 - SVC v0; Alignment Instructions
1. AFT 1) Set a signal Generator with - RF FREQUENCY = 38.9MHz, 34.2MHz (L’) - RF OUTPUT LEVEL = 80+/-5dBuV - System = PAL for 38.9MHz. SECAM-I for 43.2MHz. 2) Connect the Signal Generator RF Output (PAL 38.9MHz) to P101 (Tuner IF Output). There must be no signal input to the tuner. 3) Locate the cu...
Page 40 - - Option data has to be change and
6. GEOMETRY 6.1 VERTICAL CENTER 1) Set the TV to “NORMAL I” mode. 2) Enter the service mode. 3) Locate the cusor at “V.CENTER” then press “VOL +” or “VOL -” keys to adjust the center line with the mechanical center marks of the CRT. 6.2 VERTICAL SIZE * The VERTICAL CENTER adjustment has to be done i...
Page 41 - Electrical Parts List; is safety component, so it must be used the same component.
Electrical Parts List LOC PART CODE PART NAME PART DESCRIPTION ZZ100 48B3740A01 TRANSMITTER R-40A01 REMOCON ZZ110 PTACPWA627 ACCESSORY AS DTP-14C5TF 100 4850Q00910 BATTERY R03/NN M821 4858213800 BAG INSTRUCTION L.D.P.E T0.05X250X400 ZZ120 PTBCSHA627 COVER BACK AS DTP-14C5TF M211 4852151401 COVER BAC...