Each time a receiver requires servicing the
high voltage should be checked. It is recommended the reading of the high
voltage be recorded as a part of the service record. It is important to use an
accurate and reliable high voltage meter.
When replacing a high voltage resistor (metal
oxide resistor) on circuit board, keep the resistor APP. 10mm (1/2 in.) away
from circuit board.
CHIPs
ST92195
The ST92195 microcontrollers are developed and manufactured by STMicroelectronics using a proprietary n-well HCMOS process. Their performance derives from the use of flexible 256-register programming model for ultra-fast context switching and real-time event response. The intelligent on-chip peripherals offload the ST9 core from I/O and data management processing tasks allowing critical application tasks to get the maximum use of core resources. TheST92195 MCU support low power consumption and low voltage operation for power-efficient and low-cost embedded systems.
The ST92195 microcontrollers are developed and manufactured by STMicroelectronics using a proprietary n-well HCMOS process. Their performance derives from the use of flexible 256-register programming model for ultra-fast context switching and real-time event response. The intelligent on-chip peripherals offload the ST9 core from I/O and data management processing tasks allowing critical application tasks to get the maximum use of core resources. TheST92195 MCU support low power consumption and low voltage operation for power-efficient and low-cost embedded systems.
28 fully-programmable I/Os
4 channels Analog/Digital Converter.
STV2246H
The STV224XH is fully bus-controlled IC for TV that include PIF, SIF, Luma, Chroma and Deflection processing functions. Used with a vertical frame booster (TDA8174A for a 90° chassis, STV9306 for a 110° chassis), they allow multi-standard (BG/DK/I/MN/LL’, PAL/SECAM/NTSC) sets to be designed with very few external components and no manual adjustments.
The STV224XH is fully bus-controlled IC for TV that include PIF, SIF, Luma, Chroma and Deflection processing functions. Used with a vertical frame booster (TDA8174A for a 90° chassis, STV9306 for a 110° chassis), they allow multi-standard (BG/DK/I/MN/LL’, PAL/SECAM/NTSC) sets to be designed with very few external components and no manual adjustments.
I²C Bus Control
PIF Circuit with PLL Demodulation (Positive and Negative Video)
SIF Circuit with QSS Structure, FM Demodulation and AM Demodulation for France
Intercarrier Capability and Built-in Sound Band pass
Sound Subcarrier Output for Stereo Chassis (FM, NICAM)
Integrated Chroma Filters and Luma Delay Line and Integrated Chroma Delay Line
3 channels input Video Switch and 2 channels CVBS output
OSD RGB Inputs and external RGB Inputs Interface
PAL/SECAM/NTSC Chroma Demodulators
Black Stretch and peaking Circuit.
PIF Circuit with PLL Demodulation (Positive and Negative Video)
SIF Circuit with QSS Structure, FM Demodulation and AM Demodulation for France
Intercarrier Capability and Built-in Sound Band pass
Sound Subcarrier Output for Stereo Chassis (FM, NICAM)
Integrated Chroma Filters and Luma Delay Line and Integrated Chroma Delay Line
3 channels input Video Switch and 2 channels CVBS output
OSD RGB Inputs and external RGB Inputs Interface
PAL/SECAM/NTSC Chroma Demodulators
Black Stretch and peaking Circuit.
Automatic Cut-off Current Loop, manual
Cut-off possible for low-cost applications
Two Horizontal Deflection PLLs
APR (Automatic RGB Peak Regulation) or RGB Peak Limitation Function.
STV9306A
The STV9306 is a fully I2C controlled vertical deflection IC designed forusein110°, 4/3 or 16/9 CRT applications. It integrates both the vertical deflection and E/W correction circuitries necessary in design of a 110° chassis.
The STV9306 is a fully I2C controlled vertical deflection IC designed forusein110°, 4/3 or 16/9 CRT applications. It integrates both the vertical deflection and E/W correction circuitries necessary in design of a 110° chassis.
Fully I2C controlled
Internal flyback generator (UPTO60V) and DC Coupled operation
Self adapted sawtooth (50/60Hz)
Vertical linearity, amplitude and centering adjustments.
Horizontal width, pincushion, trapezoid and corner adjustments. Breathing correction.
Internal flyback generator (UPTO60V) and DC Coupled operation
Self adapted sawtooth (50/60Hz)
Vertical linearity, amplitude and centering adjustments.
Horizontal width, pincushion, trapezoid and corner adjustments. Breathing correction.
CD7522CS
The CD7522CS is a stereo 2× 3W BTL audio amplifier, specially designed for high quality sound TV applications. Features of the CD7522CS include Stand-by and Volume control functions.
The CD7522CS is a stereo 2× 3W BTL audio amplifier, specially designed for high quality sound TV applications. Features of the CD7522CS include Stand-by and Volume control functions.
2×3W output power RL = 8Ω @THD = 0.5% VCC =
10V
Standby and volume control function
Low turn-on turn-off pop noise
Low voltage supply ≤ 14V
Thermal overload protection.
Standby and volume control function
Low turn-on turn-off pop noise
Low voltage supply ≤ 14V
Thermal overload protection.
STV8216
This chip included three main parts:
TV Sound Demodulator: provides all the necessary circuitry for the demodulation of audio transmissions of European and Asian terrestrial TV broadcasts. The various transmission standards are automatically detected and demodulated without user intervention.
Audio Processor: based on DSP technology independently controls loudspeaker, subwoofer and headphone signals. It offers basic and advanced features, such as a ST Wide Surround, Equalizer, Automatic Loudness and Smart Volume Control for television viewer comfort. The STV8226/36 versions can perform additionally the SRS 3D Surround for stereo and mono signals.
Audio Matrix: 3 stereo and 1 mono external analog audio inputs to loudspeakers and headphone, with 2 stereo external analog audio outputs (SCART compatible).
This chip included three main parts:
TV Sound Demodulator: provides all the necessary circuitry for the demodulation of audio transmissions of European and Asian terrestrial TV broadcasts. The various transmission standards are automatically detected and demodulated without user intervention.
Audio Processor: based on DSP technology independently controls loudspeaker, subwoofer and headphone signals. It offers basic and advanced features, such as a ST Wide Surround, Equalizer, Automatic Loudness and Smart Volume Control for television viewer comfort. The STV8226/36 versions can perform additionally the SRS 3D Surround for stereo and mono signals.
Audio Matrix: 3 stereo and 1 mono external analog audio inputs to loudspeakers and headphone, with 2 stereo external analog audio outputs (SCART compatible).
NICAM, AM, FM Mono and FM 2 carrier stereo
demodulators for all sound carriers between 4.5 and 7MHz Mono input provided
for optimum AM demodulation performances Demodulation controlled by automatic
standard recognition system
Sound IF AGC with wide range, over modulation and carrier offset recovery
Smart volume control, smart volume control, 5-band equalizer bass/treble control, automatic loudness control Loudspeaker and Headphone outputs with volume/balance controls and beeper
Subwoofer output with volume control and programmable bandwidth, spatial Sound Effects (ST Wide Surround and Pseudo-Stereo), low-noise audio mutes and switches
I²C Bus-controlled, single and standard 27 MHz crystal oscillator, Power supplies: 3.3V Digital, 5V or 8V Analog, embedded 3.3V regulators.
Sound IF AGC with wide range, over modulation and carrier offset recovery
Smart volume control, smart volume control, 5-band equalizer bass/treble control, automatic loudness control Loudspeaker and Headphone outputs with volume/balance controls and beeper
Subwoofer output with volume control and programmable bandwidth, spatial Sound Effects (ST Wide Surround and Pseudo-Stereo), low-noise audio mutes and switches
I²C Bus-controlled, single and standard 27 MHz crystal oscillator, Power supplies: 3.3V Digital, 5V or 8V Analog, embedded 3.3V regulators.
SERVICE MODE&ADJUSTMENTs
The Service-1 mode is entered by pressing the “SERVICE” key on remote control when the TV is in ON condition and not in any Menu mode. In service mode, by pressing “OK” key, Service-2 is accessed. By pressing “OK” key again, Serivice-3 is accessed. By pressing “PP” key, exit the Service mode.
The Service-1 mode is entered by pressing the “SERVICE” key on remote control when the TV is in ON condition and not in any Menu mode. In service mode, by pressing “OK” key, Service-2 is accessed. By pressing “OK” key again, Serivice-3 is accessed. By pressing “PP” key, exit the Service mode.
WHITE BALANCE ADJUSTMENT
The items within the Service-1 mode can be accessed using P+/P- keys and the selected item can be modified by using V+/V- keys. The parameters controlled in the Service-1 menu are
The items within the Service-1 mode can be accessed using P+/P- keys and the selected item can be modified by using V+/V- keys. The parameters controlled in the Service-1 menu are
a) Red Gain ( 0 ... 63 )
b) DC Red ( 0 .... 127)
c) Green Gain ( 0 .... 63)
d) DC Green ( 0 .... 127)
e) Blue Gain ( 0 .... 63)
f) DC Blue ( 0 .... 127)
g) APR_threshold (0….15)
h) LOGO ( the first show the length of logo, and the followed is the logo)
i) R-Cutoff (0…63)
j) G-Cutoff (0…63)
b) DC Red ( 0 .... 127)
c) Green Gain ( 0 .... 63)
d) DC Green ( 0 .... 127)
e) Blue Gain ( 0 .... 63)
f) DC Blue ( 0 .... 127)
g) APR_threshold (0….15)
h) LOGO ( the first show the length of logo, and the followed is the logo)
i) R-Cutoff (0…63)
j) G-Cutoff (0…63)
VIF ADJUSTMENT
When in Service-1 menu ,if “OK” key is pressed , Service-2 menu appears and the display is as follows.The parameters controlled in the Service-2 menu are:
When in Service-1 menu ,if “OK” key is pressed , Service-2 menu appears and the display is as follows.The parameters controlled in the Service-2 menu are:
a) Tuner AGC ( 0 ... 63 )
b) Horizontal position 50 Hz( 0 ... 63)
c) Vertical position 50 Hz (0…15)
d) Vertical amplitude 50Hz (0…63)
e) Vertical linearity 50Hz (0…63)
f) Horizontal position 60 Hz( 0 ... 63)
g) Vertical position 60 Hz (0…15)
h) Vertical amplitude 60 Hz (0…63)
i) Vertical linearity 60 Hz (0…63)
j) Sub-Bright Maximum (0…63)
k) Sub-Bright Minimum (0…63)
l) Sub Tint (0…63)
m) VCO Coarse ( 0 ... 15)
n) VCO Fine ( 0 ... 127 )
o) VCO Coarse L1( 0 ... 15)
p) VCO Fine L1( 0 ... 127 )
The display of Service-2 menub) Horizontal position 50 Hz( 0 ... 63)
c) Vertical position 50 Hz (0…15)
d) Vertical amplitude 50Hz (0…63)
e) Vertical linearity 50Hz (0…63)
f) Horizontal position 60 Hz( 0 ... 63)
g) Vertical position 60 Hz (0…15)
h) Vertical amplitude 60 Hz (0…63)
i) Vertical linearity 60 Hz (0…63)
j) Sub-Bright Maximum (0…63)
k) Sub-Bright Minimum (0…63)
l) Sub Tint (0…63)
m) VCO Coarse ( 0 ... 15)
n) VCO Fine ( 0 ... 127 )
o) VCO Coarse L1( 0 ... 15)
p) VCO Fine L1( 0 ... 127 )
The VCO status bar at the bottom of the
screen appears only if either VCO Coarse item or VCO Fine item is selected. The
VCO status is read from the Read register of STV223X/4X and guides whether to
Increase / Decrease the VCO registers to attain VCO OK Status.
For doing VCO adjustment , Feed a 38.9MHZ Carrier as IF input and adjust VCO Coarse and fine parameters to get VCO OK Status.
If the cursor is in VCO Coarse or Fine, and the display shows VCO OK status, then pressing of AV” key will automatically put VCO fine to the Centre of the +60 to -60 KHz window.
For doing VCO L1 adjustment ,Feed a 33.9 MHZ carrier as IF input and adjust VCO Coarse L1 and VCO Fine L1 to get VCO OK Status.
If the cursor is in VCO Coarse L1 or Fine L1 , and the display shows VCO OK status, then pressing of “AV” key will automatically put VCO fine for L1 to the Centre of the +60 to -60 KHz window. Another fast way of adjustment of VCO is to put the selection bar to either VCO Coarse or fine and press the
“AV” key. The VCO adjustment is done automatically. Similarly if you put the selection bar to VCO Coarse L1 or Fine L1 and press the “AV” key , the VCO L1 adjustment will be done automatically.
NOTE: Below items are not used in this chassis:
For doing VCO adjustment , Feed a 38.9MHZ Carrier as IF input and adjust VCO Coarse and fine parameters to get VCO OK Status.
If the cursor is in VCO Coarse or Fine, and the display shows VCO OK status, then pressing of AV” key will automatically put VCO fine to the Centre of the +60 to -60 KHz window.
For doing VCO L1 adjustment ,Feed a 33.9 MHZ carrier as IF input and adjust VCO Coarse L1 and VCO Fine L1 to get VCO OK Status.
If the cursor is in VCO Coarse L1 or Fine L1 , and the display shows VCO OK status, then pressing of “AV” key will automatically put VCO fine for L1 to the Centre of the +60 to -60 KHz window. Another fast way of adjustment of VCO is to put the selection bar to either VCO Coarse or fine and press the
“AV” key. The VCO adjustment is done automatically. Similarly if you put the selection bar to VCO Coarse L1 or Fine L1 and press the “AV” key , the VCO L1 adjustment will be done automatically.
NOTE: Below items are not used in this chassis:
Vertical position 50 Hz
Vertical amplitude 50Hz
Vertical linearity 50Hz
Vertical position 60 Hz
Vertical amplitude 60 Hz
Vertical linearity 60 Hz
Vertical amplitude 50Hz
Vertical linearity 50Hz
Vertical position 60 Hz
Vertical amplitude 60 Hz
Vertical linearity 60 Hz
STV9306 ADJUSTMENT
When in Service-2 menu, if “OK” key is pressed, Service-3 menu appears and the display is as follows, if the IC STV9306 has not been detected, then Service-4 (design menu) menu will appear.
When in Service-2 menu, if “OK” key is pressed, Service-3 menu appears and the display is as follows, if the IC STV9306 has not been detected, then Service-4 (design menu) menu will appear.
Vertical amplitude for 50Hz signal.
2) Vertical amplitude for 60Hz signal.
3) Vertical shift (internal separated by 50Hz and 60Hz)
4) S Correction.
5) C Correction.
6) Horizontal width adjustment.
7) Pincushion Correction.
8) E/W Sharp Correction.
9) Trapezium Correction.
2) Vertical amplitude for 60Hz signal.
3) Vertical shift (internal separated by 50Hz and 60Hz)
4) S Correction.
5) C Correction.
6) Horizontal width adjustment.
7) Pincushion Correction.
8) E/W Sharp Correction.
9) Trapezium Correction.
DESIGN OPTION SETTING
When in Service-3 menu, if “OK” key is pressed, Option menu appears and the display is as follows
When in Service-3 menu, if “OK” key is pressed, Option menu appears and the display is as follows
OPTION1
b7 = Over modulation (0=Disable, 1=Enable, it’s suggested to set it to 0 normally.)
b5 = P/N/S crystals application (0=2 Crystals, 1= 1 Crystals, according the quantity of crystal used for color decoding in chassis.)
b4 = Cutoff Loop (0= OFF, 1=ON, it’s suggested to set it to 1 normally)
b3 = Safety Reset (0=Active, 1=Non, it’s suggested to set it to 0 normally)
b2 = MONO IN (0 = OFF, 1= ON, Depend on the sound decoding solution used in chassis. )
b1 = Sound Demodulation (0 = Intercarrier/MONO, 1 =QSS/NICAM, depend on the sound decoding solution used in chassis.)
b0 = logo display (0 =OFF, 1= ON, it’s suggested to set it to 0 normally.)
OPTION2 (set to 0 by default)
b5 = HALF_CONTRAST (0 = OFF, 1=ON)
b4 = Color 6dB (0 = OFF, 1 = ON)
b3 = APR Feature (0 = ON, 1= OFF)
b2 = Black Stretch (0 = ON, 1= OFF)
b1 = Auto Flesh (0 = ON, 1= OFF)
b0 = Coring (0 = ON, 1 = OFF)
OPTION3
b7 =SMART (0 = OFF, 1=ON, it’s suggested to set it to 1 normally)
b5 = AVL (0 = OFF, 1=ON, it’s suggested to set it to 0 normally.)
b4 = PIF overmodulation (0 = OFF, 1= ON, it’s suggested to set it to 0 normally.)
b3 = Market_France --- secam LL (0 = OFF, 1 = ON, depend on the solution of chassis.)
b2 = Manual/Auto cutoff (0 = Manual, 1 = Auto cutoff, depend on the CRT for chassis.)
b1 = Mute pin low/high –to control the mute of speaker (0 = low, 1 = high, depend on the solution of chassis.)
OPTION4b6 = WIDE MODE (0 = OFF, 1=ON, it’s suggested to set it to 0 normally.)
b4 = SCART2 (0 = OFF, 1=ON, depend on the solution of chassis.)b7 = Over modulation (0=Disable, 1=Enable, it’s suggested to set it to 0 normally.)
b5 = P/N/S crystals application (0=2 Crystals, 1= 1 Crystals, according the quantity of crystal used for color decoding in chassis.)
b4 = Cutoff Loop (0= OFF, 1=ON, it’s suggested to set it to 1 normally)
b3 = Safety Reset (0=Active, 1=Non, it’s suggested to set it to 0 normally)
b2 = MONO IN (0 = OFF, 1= ON, Depend on the sound decoding solution used in chassis. )
b1 = Sound Demodulation (0 = Intercarrier/MONO, 1 =QSS/NICAM, depend on the sound decoding solution used in chassis.)
b0 = logo display (0 =OFF, 1= ON, it’s suggested to set it to 0 normally.)
OPTION2 (set to 0 by default)
b5 = HALF_CONTRAST (0 = OFF, 1=ON)
b4 = Color 6dB (0 = OFF, 1 = ON)
b3 = APR Feature (0 = ON, 1= OFF)
b2 = Black Stretch (0 = ON, 1= OFF)
b1 = Auto Flesh (0 = ON, 1= OFF)
b0 = Coring (0 = ON, 1 = OFF)
OPTION3
b7 =SMART (0 = OFF, 1=ON, it’s suggested to set it to 1 normally)
b5 = AVL (0 = OFF, 1=ON, it’s suggested to set it to 0 normally.)
b4 = PIF overmodulation (0 = OFF, 1= ON, it’s suggested to set it to 0 normally.)
b3 = Market_France --- secam LL (0 = OFF, 1 = ON, depend on the solution of chassis.)
b2 = Manual/Auto cutoff (0 = Manual, 1 = Auto cutoff, depend on the CRT for chassis.)
b1 = Mute pin low/high –to control the mute of speaker (0 = low, 1 = high, depend on the solution of chassis.)
OPTION4b6 = WIDE MODE (0 = OFF, 1=ON, it’s suggested to set it to 0 normally.)
b3 = RGB (0 = OFF, 1= ON, depend on the solution of chassis.)
b2 = SVHS (0 = OFF, 1= ON, depend on the solution of chassis.)
b1 = AV2 (0 = OFF, 1= ON, depend on the solution of chassis.)
b2 = SVHS (0 = OFF, 1= ON, depend on the solution of chassis.)
b1 = AV2 (0 = OFF, 1= ON, depend on the solution of chassis.)
b0 = AV1 (0 = OFF, 1= ON, depend on the
solution of chassis.)
OPTION5
There are 8 bits used in OPTION 5. They are b0, b1, b2, b3, b4, b5, b6 and b7.
For b0, normally, ST suggests to set it to 0.
For b1, b2, they are used to select teletext languages.
For b3, it’s used to enable AV3 and SVHS. When b3 is set to 0, SVHS is enabled. When b3 is set to 1 in binary, the value is 8 in decimal. AV3 is enabled.
For b4, b5, b6 and b7 of OPTION 5 are also used to set the brightness of background in teletext mode. When b4 b5 b6 and b7 are all set to 0, the brightness of teletext background is the same as brightness of TV background. When b4, b5, b6 and b7 are all set to 1, it’s the maximum brightness of teletext background. It’s the minimum brightness of teletext background when b4 is set to 1, and b5, b6 and b7 are all set to 0. you can set these 4 bits according to your favorite brightness of teletext background.
OPTION5
There are 8 bits used in OPTION 5. They are b0, b1, b2, b3, b4, b5, b6 and b7.
For b0, normally, ST suggests to set it to 0.
For b1, b2, they are used to select teletext languages.
For b3, it’s used to enable AV3 and SVHS. When b3 is set to 0, SVHS is enabled. When b3 is set to 1 in binary, the value is 8 in decimal. AV3 is enabled.
For b4, b5, b6 and b7 of OPTION 5 are also used to set the brightness of background in teletext mode. When b4 b5 b6 and b7 are all set to 0, the brightness of teletext background is the same as brightness of TV background. When b4, b5, b6 and b7 are all set to 1, it’s the maximum brightness of teletext background. It’s the minimum brightness of teletext background when b4 is set to 1, and b5, b6 and b7 are all set to 0. you can set these 4 bits according to your favorite brightness of teletext background.
A for 11 OSD languages CPU ST92195C7B1/MNS
and ST92195C7B1/MTH for east Europe, the setting of
the b1 and b2 is listed as below.
1. If b1 = b2 = 0, then the TEXT languages like “ENGLISH, FRENCH, SWEDISH, CZECH, GERMAN, PORTUGUESE (SPANISH), ITALIAN, RUMANIAN” can be decoded;
2. If b1=1, b2=0, then the TEXT languages like “ENGLISH, RUSSIAN (BULGARIAN), HUNGARIAN, TURKISH, GERMAN, PORTUGUESE (SPANISH), ITALIAN, RUMANIAN” can be decoded.
3. If b1=0, b2=1, then the TEXT languages like “POLISH, RUSSIAN (BULGARIAN), SWEDISH, SLOVAK, GERMAN, SLOVENIAN, LITHUANIAN, RUMANIAN” can be decoded.
4. If b1 = b2 =1, then the TEXT languages like “POLISH, RUSSIAN (BULGARIAN), SWEDISH, CZECH, GERMAN, CROATIAN, LETTISH, RUMANIAN” can be decoded.
the b1 and b2 is listed as below.
1. If b1 = b2 = 0, then the TEXT languages like “ENGLISH, FRENCH, SWEDISH, CZECH, GERMAN, PORTUGUESE (SPANISH), ITALIAN, RUMANIAN” can be decoded;
2. If b1=1, b2=0, then the TEXT languages like “ENGLISH, RUSSIAN (BULGARIAN), HUNGARIAN, TURKISH, GERMAN, PORTUGUESE (SPANISH), ITALIAN, RUMANIAN” can be decoded.
3. If b1=0, b2=1, then the TEXT languages like “POLISH, RUSSIAN (BULGARIAN), SWEDISH, SLOVAK, GERMAN, SLOVENIAN, LITHUANIAN, RUMANIAN” can be decoded.
4. If b1 = b2 =1, then the TEXT languages like “POLISH, RUSSIAN (BULGARIAN), SWEDISH, CZECH, GERMAN, CROATIAN, LETTISH, RUMANIAN” can be decoded.
B. for 12 OSD languages CPU ST92195C7B1/MNU
and ST92195C7B1/MOK (SHRINK VERSION) for Western Europe, the setting of the b1
and b2 is as below.
1. If b1 = b2 = 0, then the TEXT languages like “ENGLISH, FRENCH, FINNISH, CZECH, GERMAN, PORTUGUESE (SPANISH), ITALIAN, GREEK” can be decoded;
2. If b1=1, b2=0, then the TEXT languages like “ENGLISH, FRENCH, DANISH, NORWEGIAN, GERMAN, PORTUGUESE (SPANISH), ITALIAN, GREEK” can be decoded.
3. If b1=0, b2=1, then the TEXT languages like “POLISH, FRENCH, SWEDISH, CZECH, HOLLAND, SERBIAN, ITALIAN, RUMANIAN” can be decoded.
4. If b1 = b2 =1, then the TEXT languages like “POLISH, FRENCH, SWEDISH, CZECH, GERMAN, PORTUGUESE (SPANISH), LETTISH, RUMANIAN” can be decoded.
ST Text
b0 is used to change the process for adjusting Auto gain.
1) When CPU ST92195C7B1/MOK is used, the b0 is suggested to set to 0, the gain table for shrink version should be selected.
2) When CPU ST92195C7B1/MNU is used, the b0 is suggested to set to 1, the gain table for normal version will be selected.
b1, b2, b3 = select the correct process, only for ST engineer adjustment.
ROM_M6_P_valid | OSDEPROM_M6_R_valid | ROM_M6_R_valid | EPROM_M6_R_valid
EPROM_M6_R_valid | ROMLESS_H5_P_valid | ROM_H5_P_valid | EPROM_M6_A_valid
note: ROMLESS_M6_R_valid == ROM_M6_R_valid*/
b4 = Color transition for SVHS of STV224XX (0 = b5 is available, 1 = b5 is not available, and “SHARPNESS” is no feature.)
b5 = (0 = STV224XH, 1 = STV224XC/D/E).
1. If b1 = b2 = 0, then the TEXT languages like “ENGLISH, FRENCH, FINNISH, CZECH, GERMAN, PORTUGUESE (SPANISH), ITALIAN, GREEK” can be decoded;
2. If b1=1, b2=0, then the TEXT languages like “ENGLISH, FRENCH, DANISH, NORWEGIAN, GERMAN, PORTUGUESE (SPANISH), ITALIAN, GREEK” can be decoded.
3. If b1=0, b2=1, then the TEXT languages like “POLISH, FRENCH, SWEDISH, CZECH, HOLLAND, SERBIAN, ITALIAN, RUMANIAN” can be decoded.
4. If b1 = b2 =1, then the TEXT languages like “POLISH, FRENCH, SWEDISH, CZECH, GERMAN, PORTUGUESE (SPANISH), LETTISH, RUMANIAN” can be decoded.
ST Text
b0 is used to change the process for adjusting Auto gain.
1) When CPU ST92195C7B1/MOK is used, the b0 is suggested to set to 0, the gain table for shrink version should be selected.
2) When CPU ST92195C7B1/MNU is used, the b0 is suggested to set to 1, the gain table for normal version will be selected.
b1, b2, b3 = select the correct process, only for ST engineer adjustment.
ROM_M6_P_valid | OSDEPROM_M6_R_valid | ROM_M6_R_valid | EPROM_M6_R_valid
EPROM_M6_R_valid | ROMLESS_H5_P_valid | ROM_H5_P_valid | EPROM_M6_A_valid
note: ROMLESS_M6_R_valid == ROM_M6_R_valid*/
b4 = Color transition for SVHS of STV224XX (0 = b5 is available, 1 = b5 is not available, and “SHARPNESS” is no feature.)
b5 = (0 = STV224XH, 1 = STV224XC/D/E).
b6 = Tuner Drift Correction (0 = OFF, 1 =
ON.)
b7 = RGB/DVD display on screen (0 = RGB, 1 = DVD.)
HPOS OSD,
Adjust horizontal position of OSD.
VPOS OSD,
Adjust vertical position of OSD.
HPOS TXT,
Adjust horizontal position of teletext.
VPOS TXT,
Adjust vertical position of teletext.
HOTEL MODE,
To set HOTEL MODE ON or OFF. When HOTEL MODE is enabled. The end user can not make any adjustment of items in menu INSTALL, AUDIO and ORGANIZE. Menu INSTALL and AUDIO will disappear automatically.
Volume Limit,
To set maximum volume of HOTEL MODE. It’s only available when HOTEL MODE is enabled.
SndSt 1
b0, b1, b2, b3 of SndSt 1 are used to set the sound output level at pin 26 and pin 27 of STV8216 with RF signal. When b0, b1, b2, b3 of SndSt 1 are all set 0, the minimum sound output level will be got at pin 26 and pin 27 of STV8216 with RF signal. When b0, b1, b2, b3 of SndSt 1 are all set 1, it’s 15 in decimal. The maximum sound output level will be got at pin 26 and pin 27 of STV8216 with RF signal. b4, b5, b6, b7 of SndSt 1 are used to set the “SURROUND” gain at pin 26 and pin 27 of STV8216 with RF & AV signal. When b4, b5, b6, b7 of SndSt 1 are all set 0, the minimum “SURROUND” gain will be got at pin 26 and pin 27 of STV8216 with RF & AV signal. When b4, b5, b6, b7 of SndSt 1 are all set 1, it’s 240 in decimal.
The maximum “SURROUND” gain will be got at pin 26 and pin 27 of STV8216 with RF signal.
b7 = RGB/DVD display on screen (0 = RGB, 1 = DVD.)
HPOS OSD,
Adjust horizontal position of OSD.
VPOS OSD,
Adjust vertical position of OSD.
HPOS TXT,
Adjust horizontal position of teletext.
VPOS TXT,
Adjust vertical position of teletext.
HOTEL MODE,
To set HOTEL MODE ON or OFF. When HOTEL MODE is enabled. The end user can not make any adjustment of items in menu INSTALL, AUDIO and ORGANIZE. Menu INSTALL and AUDIO will disappear automatically.
Volume Limit,
To set maximum volume of HOTEL MODE. It’s only available when HOTEL MODE is enabled.
SndSt 1
b0, b1, b2, b3 of SndSt 1 are used to set the sound output level at pin 26 and pin 27 of STV8216 with RF signal. When b0, b1, b2, b3 of SndSt 1 are all set 0, the minimum sound output level will be got at pin 26 and pin 27 of STV8216 with RF signal. When b0, b1, b2, b3 of SndSt 1 are all set 1, it’s 15 in decimal. The maximum sound output level will be got at pin 26 and pin 27 of STV8216 with RF signal. b4, b5, b6, b7 of SndSt 1 are used to set the “SURROUND” gain at pin 26 and pin 27 of STV8216 with RF & AV signal. When b4, b5, b6, b7 of SndSt 1 are all set 0, the minimum “SURROUND” gain will be got at pin 26 and pin 27 of STV8216 with RF & AV signal. When b4, b5, b6, b7 of SndSt 1 are all set 1, it’s 240 in decimal.
The maximum “SURROUND” gain will be got at pin 26 and pin 27 of STV8216 with RF signal.
Schematic diagram
SndSt 2
b0, b2, b2, b3 of SndSt 2 are used to set the sound output level at pin 26 and pin 27 of STV8216 with AV signal. When b0, b2, b2, b3 of SndSt 1 are all set 0, the minimum sound output level will be got at pin 26 and pin 27 of STV8216 with AV signal. When b0, b2, b2, b3 of SndSt 1 are all set 1, it’s 15 in decimal. The maximum sound output level will be got at pin 26 and pin 27 of STV8216 with AV signal.
b4, b5, b6, b7 of SndSt 2 are used to set the “EQUALIZER” gain at pin 26 and pin 27 of STV8216 with RF & AV signal. When b4, b5, b6, b7 of SndSt 1 are all set 0, the maximum “EQUALIZER” gain will be got at pin 26 and pin 27 of STV8216 with RF & AV signal. When b4, b5, b6, b7 of SndSt 1 are all set 1, it’s 240 in decimal.
The minimum “EQUALIZER” gain will be got at pin 26 and pin 27 of STV8216 with RF & AV signal.
LL1 MAGC,
Just for SECAM LL1 SIF AGC setting purpose in STV8216. No available for PAL and NTSC system.
When the item “LL1 MAGC” is set to OFF, the SIF AGC of STV8216 is set by software.
When the item “LL1 MAGC” is set to ON, the SIF AGC of STV8216 can be set manually. The following steps can be followed when set this item.
1) To get a RF SECAM LL1 signal without sound modulation, only sound carrier is available. And put the signal to input of tuner in CTV 5 chassis.
2) To press “SERVICE” key on remote control to enter service menu. And select the item “LL1 MAGC” by P+ or P- key on remote control.
Set the item “LL1 MAGC” from “OFF” to “ON” by V+ or V- key on remote control. service command,
1) “PP”----exit
2) “OK”---- switch between the service menu
b0, b2, b2, b3 of SndSt 2 are used to set the sound output level at pin 26 and pin 27 of STV8216 with AV signal. When b0, b2, b2, b3 of SndSt 1 are all set 0, the minimum sound output level will be got at pin 26 and pin 27 of STV8216 with AV signal. When b0, b2, b2, b3 of SndSt 1 are all set 1, it’s 15 in decimal. The maximum sound output level will be got at pin 26 and pin 27 of STV8216 with AV signal.
b4, b5, b6, b7 of SndSt 2 are used to set the “EQUALIZER” gain at pin 26 and pin 27 of STV8216 with RF & AV signal. When b4, b5, b6, b7 of SndSt 1 are all set 0, the maximum “EQUALIZER” gain will be got at pin 26 and pin 27 of STV8216 with RF & AV signal. When b4, b5, b6, b7 of SndSt 1 are all set 1, it’s 240 in decimal.
The minimum “EQUALIZER” gain will be got at pin 26 and pin 27 of STV8216 with RF & AV signal.
LL1 MAGC,
Just for SECAM LL1 SIF AGC setting purpose in STV8216. No available for PAL and NTSC system.
When the item “LL1 MAGC” is set to OFF, the SIF AGC of STV8216 is set by software.
When the item “LL1 MAGC” is set to ON, the SIF AGC of STV8216 can be set manually. The following steps can be followed when set this item.
1) To get a RF SECAM LL1 signal without sound modulation, only sound carrier is available. And put the signal to input of tuner in CTV 5 chassis.
2) To press “SERVICE” key on remote control to enter service menu. And select the item “LL1 MAGC” by P+ or P- key on remote control.
Set the item “LL1 MAGC” from “OFF” to “ON” by V+ or V- key on remote control. service command,
1) “PP”----exit
2) “OK”---- switch between the service menu
3) “AV”---- auto VCO adjust
4) “MUTE” ---- one line gain
Enter service menu with user remote control,
1) Press key “Sleep” on remote control to set sleep time to “00:50”.
2) Within 5 seconds, press local key “V+” in TV set to enter service menu.
3) Adjust expecting item as the same as service remote control.
4) “MUTE” ---- one line gain
Enter service menu with user remote control,
1) Press key “Sleep” on remote control to set sleep time to “00:50”.
2) Within 5 seconds, press local key “V+” in TV set to enter service menu.
3) Adjust expecting item as the same as service remote control.
