Grundig GMM1100-STF55-1001 Schematic

COLOR TELEVISION

SERVICE MANUAL

21” T2S08 CHASSIS

WITH NICAM&TELETEXT

CONTENTS

ⅠSAFETY PRECAUTION ………………………………………………… 1
ⅡSPECIFICATION ………………………………………………………… 2
Ⅲ IC’S GENERAL DESCRIPTION ……………………………………… 3
Ⅳ SPECIAL IC INTRODUCTION ………………………………………… 3
Ⅴ CHASSIS BLOCK DIAGRAM ………………………………………… 12
Ⅵ SERVICE MODE&ADJUSTMENT …………………………………… 13
Ⅶ TEST POINT WAVE FORM&SCHEMATIC DIAGRAM …………… 18

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ⅠSAFETY PRECAUTION

1. X-RAY RADIATION PRECAUTION

1.1 Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To avoid such hazards
the high voltage must be specified limit. The normal value of the high voltage of this receiver is 27KV±

500V under 230V AC power source. The high voltage must not exceed 30KV.

1.2 Each time a receiver requires servicing the high voltage should be checked following the HIGH

VOLTAGE CHECK procedure in this manual. 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.

1.3 The primary source of X -RAY RADIATION in this TV receiver is the picture tube. For continued X-RAY

RADIATION protection, the replacement tube must be exactly the same type tube as used in this TV
receiver.

1.4 Some parts in this receiver have special safety-related characteristics for X-RAY RADIATION protection.

For continued safety, parts replacement should be undertaken only after referring the PRODUCT SAFETY

NOTICE below.

2. GENERAL SAFETY PRECAUTION

The following are the necessary precautions to be observed before servicing this chassis

WARNING: Service should not be attempted by anyone unfamiliar with the necessary

2.1 Since the power supply circuit of this receiver is directly connected to the AC power line. An isolation

transformer should be used during any dynamic service to avoid possible shock hazard.

2.2 Always discharge the picture tube anode to the CRT conductive coating before handling the picture

tube. The picture tube is highly evacuated and if broken, glass fragments will be violently expelled. Use

shatterproof goggles and keep picture tube away from the unprotected body while handling.

2.3 When replacing a chassis in the cabinet, always be certain that all the protective devices are put back

in place, such as: nonmetallic control; knobs, insulating covers, shields, isolation resistor-capacitor,

network, etc.

2.4 Connection wires must be kept away from components with high voltage or high temperature.

2.5 When replacing parts or circuit boards, disconnect the power cord.

2.6 When replacing a high voltage resistor (metal oxide resistor) on circuit board, keep the resistor APP.

10mm (1/2 in.) away from circuit board.

2.7 If any fuse in this TV receiver is broken, replace it with the FUSE specified in the chassis parts list.

2.8 The receiver is designed to operate with 230V (50Hz) AC mains.

3. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety-related characteristics are often

passed unnoticed by a visual inspection and the X-RAY RADIATON protection afforded by them cannot

necessarily be obtained by using replacement components rated for higher voltage. The use of substitute

replacement parts that do not have the same safety characteristics as specified in the parts list may create

shock, fire, X-RAY RADIATION or other hazards.

Warning!

There are no any repairable components in this TV set. Do not try to make any change to it. High voltage

inside may cause danger.

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ⅡSPECIFICATION

RF SYSTEM

VIDEO SYSTEM PAL SECAM NTSC4.43

TUNING SYSTEM VOLTAGE SYNTHESIZER TUNING

RECEIVING CHANNEL

PROGRAM PRESET 99

AV JACKS

TELETEXT 1PAGE

ANTENNA INPUT

AUDIO OUTPUT

MAIN POWER 170-260V AC 50/60Hz

POWER CONSUMPTION 100W

SOUND SYSTEM:B/G D/K I NICAM STEREO

VHF-L: E2～S6 48.25 MHz～140.25MHz

VHF-H: S7～S36 147.25 MHz～423.25MHz

COLOR SYSTEM: PAL SECAM

UHF: S37～DS57 431.25 MHz～863.25MHz

1 FULL SCART AND 1 AV SCART

75（UNBALANCE）

ⅢCHIP GENERAL DESCRIPTION

1 SIDE RCA AV IN

≥2.5W

1. MAIN BOARD PART

IC001 ST92195 MCU With ON SCREEN DISPLAY and TELETEXT Decoder

IC002 24C08 8 Kbit Serial I2C Bus EEPROM

IC101 STV2246 I²C BUS-Controlled Multistandard Single Chip TV Processor

IC301 STV9306A/B BUS-Controlled VERTICAL DEFLECTION W.E/W CORRECTION CIRCUIT

IC601 H11A817C OPTOCOUPLERS

IC603 MC7808CT +8V VOLTAGE REGULATOR

IC604

IC605

IC606 MC7812CT +12V VOLTAGE REGULATOR

IC701 CD7522CS 3W AUDIO AMPLIFIER

IC801 STV8216 Multi-standard TV Audio Processor and Digital Sound Demodulator

MC7805CT +5V VOLTAGE REGULATOR

ⅣCHIP INTRODUCTION

1. 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.

1.1 Main features

28 fully-programmable I/Os

4 channels Analog/Digital Converter

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2

Built in I

Built in OSD and Teletext decoder

14-bit Voltage Synthesis PWM output for VS tuning system

C bus interface

1.2 Pin description

Pin No. Pin Name Signal Name I / O Function

1 P2.0 IRIN I IR Input
2 RESET RESET I Hardware Reset
3 P0.7 NC I/O Not Used
4 P0.6 MUTE O Mute Output PIN
5 P0.5 NC I/O Not Used
6 P0.4 ON/OFF O Standby Output
7 P0.3 DESIGN I Service menu control
8 P0.2 SCART1 I Identify scart entering Design

9 P0.1 SCART2 I Identify scart entering Design
10 P0.0 AV SEL O AV Selection
11 P3.7 S0 O AV/TV
12 P3.6 S1 O AV/TV
13 P3.5 TV/DVD O TV/DVD
14 P3.4 DFD O Default data control
15 B B O OSD Blue colour Signal Output
16 G G O OSD Green colour Signal Output
17 R R O OSD Red colour Signal Output
18 BLANK BLANK O OSD Blanking Output
19 P5.1 SDA I/O I2C data line
20 P5.0 SCL O I2C clock line
21 VDD VDD
22 JTDO JTDO
23 WSCF WSCF
24 WSCR WSCR
25 AVDD3 AVDD3
26 TEST0 TEST0
27 MCFM MCFM
28 JTCK JTCK
29 TXCF TXCF
30 CVBSO CVBSO
31 AVDD2 AVDD2
32 JTMS JTMS
33 CVBS2 CVBS2 I CVBS In for VPS / WSS
34 CVBS1 CVBS1 I CVBS In for Teletext Slicer
35 AGND AGND
36 GND GND
37 JTRST0 JTRST0
38 PXFM PXFM
39 AVDD1 AVDD1
40 HSYNC HSYNC I Horizontal Sync Input

+5 V Digital Supply

Test Pin
Analog Pin For VPS / WPP slicer line PLL
Analog Pin For VPS / WPP slicer line PLL

+5V Analog VDD For PLL

Test Pin

Analog Pin for display pixel freq. multiplier

Test Pin

Analog pin for VPS /WSS line PLL

Test Pin

Analog Power supply

Test Pin

Analog ground

Digital ground

Test Pin

Analog Pin for display pixel freq. multiplier

Analog Power Supply

41 VSYNC VSYNC I Vertical Sync Input

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42 P4.0 BSW1 O Band switch 1
43 P4.1 BSW2 O Band switch 2
44 P4.2 SAW_SW1 O SAW Filter switch 1
45 P4.3 NC I/O Not connected
46 P4.4 SAW_SW2 O SAW Filter switch 2
47 P4.5 NC I/O Not connected
48 P4.6 Vlin PWM O V-linearity PWM output
49 P4.7 VOL PWM O VOL PWM output
50 XTAL XTAL
51 XTAL XTAL
52 P2.5 LED2 O LED driver
53 P2.4 LED1 O LED driver
54 P2.3 VS O VST Voltage ouput
55 P2.2 NC I/O Not connected
56 P2.1 KB INPUT I KEY Input

1.3 Block diagram

Clock oscillator
Clock oscillator

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1.4 General application description

BAND SWITCH OUTPUT (Pin42 Pin43)

Pin42 BSW1 Pin43 BSW2 SELECTED BAND

0 0 NOT USED

0 1 VHF-L

1 0 VHF-H

1 1 UHF

KEYBOARD INPUT LEVEL (Pin56)

KEY IN (Pin 56) KEY PRESSED

0.285 ~ 0.587V Volume – (1 K ohm)

0.706 ~ 1.098V Volume + (2.2 K ohm)

1.204~ 1.596V Program- (3.9 K ohm)

1.704 ~ 2.096V Program+ (6.2 K ohm)

2.194 ~ 2.586V MENU (9.1 Kohm)

2.704 ~ 3.096V TV/DVD (13.8 Kohm)

3.205 ~ 3.606V AV/TV(22 Kohm)

3.745 ~ 4.145V Analog (37.4 Kohm)

4.282 ~ 4.682V OK (86.5 K ohm)

Note:The pull up resistor of Pin56 is 10K.

TV/AV SELECTION (Pin11/Pin12)

S0-Pin11 0 1 0 1

S1-Pin12 0 0 1 1

TV/AV MODE TV AV1/RGB AV2 S-VHS

STANDBY OUTPUT (Pin6)

STD-BY (Pin 6) Mode

0 Standby

1 Operating

2. 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.

2.1 Main features

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

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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

2.2 Pin description

PIN NO. SYMBOL DESCRIPTION

1 SIFIN1 SIF input

2 SIFIN2 SIF input

3 AGCSIFCAP AGC SIF capacitor

4 V

5 AGCPIFCAP AGC PIF capacitor

6 PIFIN1 PIF input

7 PININ2 PIF input

8 TUNERAGCOUT AGC Tuner output

9 IFPLL IF PLL filter

10 GNDIF IF Ground

11 AM/FMOUT/SC AM/FM Mono sound or stereo carriers output

12 VCCIF 5V IF Supply

13 INTCVBSOUT Internal CVBS output

14 EXTAUDIOIN External audio input

15 PIFLC1 LC input

16 PIFLC2 LC input

17 V

18 CVBSIN1 Internal video input

19 GND2 Video/LUMA ground

20 CVBSIN2 External video input

21 BS Black stretch capacitor

22 Y/CVBSIN3 Y(SVHS) or CVBS3 external input

23 CHR Chroma(SVHS) input

24 APR Automatic RGB peak regulation

25 BEXT/Cb External blue input or Cb input

26 GEXT/Y External green input or Y input

27 REXT/Cr External red input or Cr input

28 FBEXT External fast blanking input

29 NC/CVBSOUT1 Not connected or CVBS output1

30 BOUT Blue output

31 GOUT Green output

32 ROUT Red output

33 I

34 BOSD OSD Blue input

35 GOSD OSD Green input

36 ROSD OSD Red input

37 FBOSD/HC OSD Fast blanking input/half contrast

38 XTAL3/BTUN 3.5x MHz Crystal or bell filter tuning capacitor

39 XTAL2 3.5x MHz Crystal

40 XTAL1 4.43/3.5x MHz Crystal

Voltage reference filter

REFIF

Video/LUMA Supply voltage (8V)

CC2

Cathode current measurement input

CATH

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41 CLPF Chroma PLL filter

42 X1/VAMP/CHROUT

43 GND1 Chroma/scanning ground

44 CVBSOUT2 Second video switch output

45 V

46 BCL/SAF Beam current limiter control voltage and safety input(X-ray)

47 VERT Vertical output pulse

48 HOUT Horizontal output pulse

49 LFB/SSC Line flyback input and super-sandcastle output

50 SLPF Scanning PLL filter

51 SCL I2C Bus clock input

52 SDA I2C Bus data input

53 V

54 GNDD Digital ground

55 AUDIOOUT Main audio output

56 FMCAP FM demodulation capacitor

Chroma/scanning power supply (8V)

CC1

Digital supply voltage(5V)

CCD

2.3 Block diagram

XTAL1 control pin, vertical amplitude DAC output and chroma

reference signal output

3. 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.

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3.1 Main features

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.

3.2 Pin description

PIN NO. SYMBOL DESCRIPTION

1 SCL I2C Bus clock

2 CRAMP Ramp capacitor

2

3

4 CHOLD Hold capacitor

5 SYNC Sync input

6 VS Supply voltage

7 FLYBACK Flyback output

8 GND Vertical output

9 OUT Vertical output

10 VOPS Vertical output Power Supply

11 EWOUT EW output

12 SENS2 Vertical current sense2

13 EWFB EW feedback

14 SENS1 Vertical current sense1

15 BREATHING Breathing input

SDA I

C Bus data

3.3 Block diagram

-8-

4. 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.

4.1 Main feature

2×3W output power RL = 8 @THD = 0.5% VCC = 10V

Standby and volume control function

Low turn-on turn-off pop noise
Low voltage supply  14V

Thermal overload protection

4.2 Pin description

Pin NO. SYMBOL DESCRIPTION

1 VCC Power supply

2 OUT1+ Ch1 output +

3 GND Gnd (output ch1)

4 OUT1- Ch1 output -

5 ST-BY Standby control

6 Ch1 In Ch1 audio output

7 GND Gnd (Input)

8 Ch2 In Ch2 audio output

9 Vol DC volume control

10 OUT2- Ch2 output -

11 GND Gnd (output ch2)

12 OUT2+ Ch2 output +

4.3 Block diagram

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5. 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).

5.1 Main features

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

5.2 Pin description

Pin NO. SYMBOL Pin TYPE DESCRIPTION

1 SIF Analog Sound IF input

2 VTOP Analog ADC VTOP decoupling pin

3 VREF IF Analog AGC Voltage reference decoupling Pin

4 VDDIF Analog power supply 3.3V Power supply for IF AGC & ADC

5 GNDIF Analog power supply Ground for IF AGC & ADC

6 MONOIN Analog Mono Input

7 AO1L Analog Left SCART1 audio output

8 AO1R Analog Right SCART1 audio output

9 VDDC Analog power supply 3.3V Power supply for audio DAC/ADC

10 GNDC Analog power supply Ground for audio DAC/ADC

11 AI1L Analog Left SCART1 audio input

12 AI1R Analog Right SCART1 audio input

13 VMC1 Analog Switched V

14 VMC2 Analog V

15 AI2L Analog Left SCART2 audio input

16 AI2R Analog Right SCART2 audio input

17 VDDA Analog power supply 3.3 V power supply for audio buffers, matrix & bias

decoupling Pin for audio converters (VMC)

REF

decoupling Pin for audio converters (VMCP)

REF

18 GNDAH Analog power supply Ground for audio buffers and SCART

19 AO2L Analog Left SCART2 Audio output

-10-

20 AO2R Analog Right SCART2 Audio output

21 VDDH Analog power supply 8V/5V power supply for SCART and audio buffers

22 VREFA Analog Voltage reference for audio buffers

23 AI3L Analog Left SCART3 audio input

24 AI3R Analog Right SCART3 audio input

25 BGAP Analog Bandgap voltage source decoupling

26 LSL Analog Left loudspeaker output

27 LSR Analog Right loudspeaker output

28 SW Analog Subwoofer output

29 HPL Analog Left headphone output

30 HPR Analog Right headphone output

31 GNDSA Analog power supply Substrate analog/digital shield

32 HPD Bidirectional Headphone detection input (active low)

33 ADR Input Hardware I²C chip address control

34 SCL Open drain I²C serial clock

35 SDA Open drain I²C serial data

36 REG Analog 5V power regulator control

37 RESET Input Hardware reset (active low)

38 SYSCK Bidirectional System clock output

39 MCK Bidirectional I²S master clock output

40 VDD1 Digital power supply 3.3V Power supply for digital core & IO cells

41 GND1 Digital power supply Ground for digital core & IO cells

42 GNDSP Analog power supply Substrate analog/digital shield for clock-PLL

43 XTI Input Crystal oscillator Input

44 XTO Output Crystal oscillator output

45 VDDP Analog power supply 3.3V power supply for analog PLL clock

46 GNDP Analog power supply Ground for analog PLL clock

47 GND2 Digital power supply Ground for digital core, DSPs & IO cells

48 VDD2 Digital power supply 3.3V power supply for digital core, DSPs & IO cells

49 CKTST Input Must be connected to ground

50 SDO Bidirectional I²S bus data output

51 ST/SDI Bidirectional Stereo detection output / I²S bus data input

52 WS Bidirectional I²S bus word select output

53 SCK Bidirectional I²S bus clock output

54 BUS1 Bidirectional I²C bus expander output1

55 BUS0 Bidirectional I²C bus expander output2

56 IRQ Bidirectional I²C status read request

5.3 Block diagram

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ⅤCHASSIS BLOCK DIAGRAM

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Ⅵ SERVICE MODE&ADJUSTMENT

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 Service mode.

6.1 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 :

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)

The display of Service-1 menu is showed as follows:

6.2 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 :

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 )

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The display of Service-2 menu is showed as shown:

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:

Vertical position 50 Hz

Vertical amplitude 50Hz

Vertical linearity 50Hz

Vertical position 60 Hz

Vertical amplitude 60 Hz

Vertical linearity 60 Hz

6.3 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.

1) 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.

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6.4 DESIGN OPTION SETTING

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.)

OPTION4

b6 = 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.)

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.)

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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.

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.

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).

-16-

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.

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

-17-

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.

Ⅶ TEST POINT WAVE FORM&SCHEMATIC DIAGRAM

-18-

-19-

-20-

-21-

SCL
SDA
+5V-1

BUS0

VTOP

C804

0.1u

+5V

C127

0.1u

R136 6.8K
R110 4.7K

R160 6.8K

R105 6.8K

WC

VCC

A0A1A2

+

C109

100u/16V

C105 0.22u

R802

R203

4.7K

22

IC103

HS0038

R122

4.7K

SCL

+

BUS1

VERFIF

I R

SDA

GND

1K

1K

1K

C104
220p

SCK

VDDIF

L802

10uH

AGCVTBU

R202

27K

C214

47u/16V

R120

4.7K

R106 12K

IC102
24C08

R123 10K

R129 1K

R131 1K

R133 1K

R134 1K

C108

0.1u

R111 5.6K

R119 6.8K

C112

0.1u

R118 5.6K

C113

22p

WS

GNDIF

C805

C216

0.1u

R170
510

R168 10

0.1u

+

TP1 TP2

XS101

1

2

3

4

5

6

7

8

9

10

11

R107 12K

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 29

IRQ

IC801

STV8216

SIF

12345678910111213141516171819202122232425262728

C803

0.22u

C802

56p

SIF

AGC
VT

+

C220

22u/16V

L206

+5V-1

10uH

+8V

+5V

RST

MUTE

STD BY
+5V

SCART1 ID

SCART2 ID

R109 2.7K
R108 2.7K

SDA
SCL
+5V

OSD B

R128

OSD G

R127

OSD R

R126

OSD FB

R125 2. 7K

SDA
SCL

L101

10uH

R117 10

+5V

C110

47u/16V

C103
4700p

ST

MONOIN

IR IN

RESET

NC

MUTE

NC

STD BY

SERVICE

SCART1 ID

SCART2 ID

TV /AV

S0

S1

NC

DATA PRT

OSD B

OSD G

OSD R

OSD FB

SDA

SCL

VDD

JTD0

WSCF

ESCR

AVDD3

TEST0

MCFM

JTCK

R813 33

SD0

AO1L

AO1L

R015
1K

CKTST

AO1R

C806
10u/16V

AO1R

+

D111

HFT505M

IC101 ST92195

STDBY LED

STDBY LED

VOL PWM

VLIN PWM

10u/16V

C826

0.1u

VDD2

VDCC

C807

0.1u

+

VCCBHBL

C212
47u/16V

+

KB IN

SIF SW

PIF SW

BSW2

BSW1

V SYNC

H SYNC

AVDD1

PXFM

JTRET0

AGND

TXT VIN

JTMS

AVDD2

CVBS0

TXCF

C825

+

C213
47u/16V

OSC

OSC

GND

WSS

C824

0.1u

GNDP

GND2

AI1L

GNDC

AI1L

AI1R

83154672 9 10 11

SW3

SW3

P-

R074

R074

3.9K

3.9K

56

55

NC

54

VT

53

52

51

50

49

48

47

NC

46

45

NC

44

43

42

D104

1N4148

41

40

TP19 TP20

39

38

37

36

35

34

33

32

31

30

VDDP

AI1R

C810

C808

0.1u

10u/16V

SW3P-SW4P+SW5V-SW6

P-

R074

3.9K

R137 39K

C131 47p

R102 10K

2N3904

X101

4MHz

C115

39p

C133

0.1u

R139 5.6K

C136

22p

C119

0.47u/50V

+

C121
82p

C122

0.1u

R121 15K

T2S08 CHASSIS SCHEMATIC DIAGRAM

C823 22p

X801

R807

270K

XTO

VMC1

+

C811

R075

6.2K

Q101

C114

D105

1N4148

2200p

0.1u

39p

C123

IF

C135
4700p

+

XTI

VMC2

R190 1K

+

27MHz

C822

22p

C809

10u/16V

TU201

R0721KR073

R171 10K

R112 33K

R101
33K

C101 0.1u

R103
33K

R104 33K

R149 5.6K

R143 10
C134
47u/16V

R124 1.5K

R141 10
C111
47u/16V

47u/16V

C827

+

R808

Q801

D801

220K

2SA1015

C820

C821

+

0.1u

0.47u/16V

MCK

VDD1

GND1

GNDSP

AI2R

AI2L

+

AI2R

AI2L

R201

100

BSW2
BSW1

V+

2.2K

+33V

C102

0.1u

SIF SW

BSW2
BSW1

ZD102

5.1V
V SYNC

R130

1.5K

RESET

SYSCK

AO2R

VDDA

GNDAH

AO2L

C812

0.1u

+

+

C815

C813

10u/16V

10u/16V

L803

R803

10uH

330

+8V

+8V

AO2L

AO2R

IF

STV2248

+5V

C603-C606 D603-D607
1000p 1KV RM11C

C603 C605

VT

R602
5D11

+5V

C606 C604

0.22u 250V

SC

+5V

0.22u 250V

TXT

+5V

R805

R804

1N4148

REG

VDDH

C814

0.1u

C816

0.1u

IC201

C204

IF

D603

D606

C601

F601

XS602

XP601

SW601

XS601

R806

100

100

4.7K

SCL

HPD

SAD

ADR

BGAP

VERFA

AL3R

AI3L

C819

C817

10u/16V

10u/16V

+

+

C818 0.1u

+5V-1

L204

10uH

C234

0.1u

C232

C235

+

+

1u/50V

100u
16V

VCC D

GND D

FM CAP

AUDIO OUT

VREF IF

AGCSIFCAP

SIF IN2

SIF IN1

12345678910111213141516171819202122232425262728

+

+

C223

C224

C222

10u/16V

0.022u

1u/50V

45

SF201
K9650M

3

Q201

2SC1815

12

D201

1N41

48

R217

R218

R216

0.1u

6.8K

2.2K

2.2K

+8V

D605

D604

C602

T601

UF-LB-1604

RT601

MZ72-18

T3.15A 250V

0.1u 400V

L601

DEGAUSSING COIL

AC230V

50Hz

100

C608

XS603

GNDSA

LSL

OUT L

R248

C209

1u/50V

R215

R214

SDA

10K

22K

IC701 CD7522CS

VCC

OUT1+

GND1

OUT1-

STDBY

IN1

GND

IN2

VOL

29303132333435363738394041424344454647484950515253545556

HPR

LSR

OUT R

SCL

C243

R247

100

SCL

SDA

PIF IN1

AGCPIFCAP

+

12

SF202
K3953M

SIF SW

R611

5.6K

R707 0.47

+12V-1

2

+

C703

R704

470u/25V

10K

R705 3.3K

R245

2.2u/50V

C206

0.33u

45

C205

0.1u

100u/400V

D617

Q611

OUT L

OUT R

+8V

1N4148

2.2K

LFB

AGC OUT

R221
150

C207

0.1u

C607

1N4148

SPK L

R810 18K

R812

4.7K

R809 18K

R811

4.7K

SC

TP3 TP4

H OUT

VSYNC

R244
56K

D202

L205

10uH

8.2K

R243

2.2K
C245

+

D203

4.7u

R239

2.2K

R246

R238

C241

0.1u

2.2K

BCL

VERT

H OUT

AM/FM OUT

GND IF

IF PLL

C801

47p

L801
10uH

C208

1000p

R801560

C203

0.1u

+

C221

3

47u/16V

L201
10uH

SIF

AGC

+

R620
180K

R621
180K

R622

D614

15K

R619

R624

22

39

C614

0.1u

R626

2.7K

D616

1N4148

R617

2.2K

C615

R615

0.015u

22K

HPL

SW

+

4700p

C242

R237

15K

SLPF

PIF IN2

IF

C613
4700p

RGP15J

2SA1015

ZD601

11V

R623

2.7K

R708 2.2

C708 0.1u

XS701

C702

47u/16V
C829
2200p

+

C830

R703

2200p

100K

MUTE

Q207

+8V

ABL

TXT

2SC1815

R257

1N4148

1K

C239

0.1u

C237 0.1u

C231

+

470u
16V

R229 56K

CLPF

GND1

VCC1

V AMP

CVBSOUT

PIF LC2

PIF LC1

EXTAUDIAIN

INTCVBSOUT

VCC IF

TP8

R219
150

L203

T201

7K011

C219

10uH

0.1u

C233

SF203

470u/16V

5.5MHz
L202

10uH

+5V-1

+8V

R625

2

6.8

5

C616

1000p 2KV

Q613

ST1802

2

C617

0.015u

Q612

2SC3807

8
2

3

C629

2200p 400V

C707

0.1u

R230

470

C238 4700p

R236 27K

XTAL1

VCC2

+

R211

470

R213

560

IC601

H11A817

T604

R629

8.2M 1/2W

TP9

C706

0.1u

Q702

2SC1815

C261
15p

X202

4.43
MHz

OUT2-

R709 2.2

Q701

2SA1015

R702

4.7K

OSD FB

V OUT2

R240
560

0.1u

C229

XTAL3

XTAL2

OSD FB

CVBS IN2

CVBS IN1

GND2

C426

C218

+

+

1u/50V

1u/50V

R223

1K

R224

1K

Q202

2SC1815

47u/16V

R212

1K

Q203

2SC1815

TP10

V OUT1

R638 3.3K

15

9

17

16
13

47u/160V

9

1. IS MARK OF CRITICAL COMPONENT

2.SUBJECT TO CHANGE WITHOUT NOTICE

GND2

C709

0.1u

C701
220u
16V

OSD R

C228

0.1u

OSD R

C217

+

R420
75

+

C210

D634

RU3YX

C634
470P

+

C645 470u/25V

D635

RU4YX

C637
470P

C635

1000u/25V

+

D631

RG2

C631

470P

C641

T302

D302
RGP15J

SENS2

+

ZD501

C306
1000u/16V

C311

0.22uF

5.6V

+

R308 10K

100K

R415

CRT

EWSENS

R314
10K

R323

1

0.56

C312 0.01uF

2

C319

10u/250V

***

R249
10K

+

C418

C246

4.7u/50V

330p

SENS1

R335

0.033u

+

R416

100K

C421

330p

R311

BREATH

220K

R324
68K

100

C308

L301 31uH

1

R312 1K
D305
RGP15J

R399

***

3

R319
22K

CRAMP

D304
1N4148

+

C320

1000u/35V

1N4007

RILISW

ROLO

BI

D504

R514 10K
R505 10K

Q501

BF422

R509

100

C505
680p

SDA

C304

0.68u

R317 1K

TP24

L302
1mH

2

R303
150

TP27

R513

Q504
BF423

D303

RGP15J

C322

470p/500V

R325

8.2K

CHOLD

C516

1.2K

680p

C310

4.7u/160V

2SC5296

123456789101112131415161718192021

BF423

R504

330

SYNC

R318 1K

Q302

D506

1N4007

Q507

VCC

D302 1N4007

+

1

R310

R307

22u/160V

L303

0.2uH

Q504
BF422

C510
680p

100u/35V

R331 10

R329 10

1

1

2

1

C321

C415
330p

R520
10K

ZD301

R506

2.2K
R515

2.2K
R521

R519

1.2K

R512
330

FLYBACK

C305

2

2

43V

+

C313

7500p

1.6KV

C316

220p

2KV

C422

C419

C416

C420

330p

330p

330p

330p

L407 15uH
L406 15uH
L408 15uH
L405 15uH

TP21

KB

TP22

KG

TP23

KR

2.2K

R507
47K

Q501

2SC1815

R518

330

C515
680p

C506

100u/16V

GND

OUT

VOPS

EWOUT

R322
100

+

TP25

C309

1u/250V

+

C318 470p/500V

D308

RGP15J

1

R316

TP29

D301

BY228

C314
4700p

C315

0.018uF

VIVOFBI

VIVOFBI

XS402

OUT2+

XS702

R SPK

R701

4.7K

+

D701

1N4148

+15V

ICAT

OSD G

OSD B

R OUT

G OUT

TP5 TP6 TP7

1K

470

R232

R233

R235

C226

C227

0.1u

0.1u

ICAT

OSD B

G OUT

R OUT

OSD G

B EXT

Y/CVBS IN3

1u/50V

+

C425
1u/50V

C211

0.1u

+8V

V IN1

+

G EXT

APRBSCHR

C429

C428

0.1u

0.1u

+

1u/50V

C225

R228
330K

R418

75

75

V IN2

TP11

Q683
B892

C651

R685

0.1u

15K

IC605

V in

V out

GND

7805

R655
1K

R635
150K

VR631

2K

R637

150K

D641

6.2V

GIRI

C401

C406

C402

330p

330p

330p
C404

C408

C403

330p

330p

330p

R408 100K

R409
68

C410

SCART2 ID

V IN2

B OUT

470

B OUT

R EXT

C427

0.1u

R42175R42275R423

IC606
7812

V in

GND

R116

270

Q631 2SC1815

1u/50V

V OUT2

R231
470

R234
47K

29303132333435363738394041424344454647484950515253545556

NC

FB EXT

FBI

RI
GI
BI

R253

75

TP12 TP13

C658

220u/16V

V out

+

C657

0.1u

R633 22

5

C661

+

100u/16V

+

C639

470u/16V

R115
470

ZD101

3.9V

R114

4.7K

R639

15K

R636
10K

RILISW

ROLO

BI

123456789101112131415161718192021

R419

C405

330p
C407

330p

R407 100K

R401 10K

C411

C409

1u/50V

+

+

AI2L

AO2L

+8V
B OUT
G OUT
R OUT

ICAT

ABL-V
+12V

SCL
SDA

V SYNC
+24V
+12V

+12V

+15V

IC603
7808

V in

GND

IC604 7805

V in

Q102

2SA1015

D636

1N4148

+

C638

0.22uF

V IN1

V OUT1

L403 15uH

L402 15uH

L404 15uH

L401 15uH

R406 220

R402 10K

R405 220

C412

1u/50V

1u/50V

+

+

AI2R

AO2R

XP502

XS302

XP501XS101

C675

47u/16V

V out

+

C674

0.1u

TP14

C632

47u/16V

V out

+

GND

C671

0.1u

TP15

D101

C106

1N4148

1u/50V

+

R113
100K

R640

15K

1N4148

2

uPC574

Q682
2SC1815

D309

TP16

TP17

+

IC602

STD BY

C326

0.1u

Q301

2SC2383

68

C517
680p

R301
100

R302
100

+5V-1

+12V-1

+140V

C659
1uF/50V

TP18

H OUT

GIRI

XS401

FBI

RI

GIBISCART1 ID

D501

1N4007

C511
680p

R501

1.2K

Q502

BF423

2

2

2

R523 10K

R522 10K

R524 10K

Q503

2SA1015

R508 4.7K

R502 100
R510 100
R516 100

R526 22

IC301 STV9306

SCL

1 2 3 4 5 6 7 8 9101112131415

C303

0.1u

+8V

SC

C330

47p

+5V

+24V

RST

D310

1N4007

+140V

+15V

D311

+33V

1N4007

+24V
ABL-V
ABL

T301

TP28

JDT1924

R306

220

C324
2200p

C423 1u/50V

+

R414

C413

220

1u/50V

+

C417

330p

C424

R413 10K

1u/50V

R417 220

+

R412 10K

+

C414

1u/50V

AO1L

AO1R

AI1L

AI1R

C521

2200p/2KV

R313

R312

15K

100K

C307

R320

2.2K

1000p

R336

2

470

V CIOL

H COIL

R326 220K

TP26

HV

FOCUS

SCREEN

C317

R321

0.039u

8.2K

T2S08 CHASSIS SCHEMATIC DIAGRAM

Title:
Number:

20-May-2007 1 of 1

Date:

Revision:
Sheet:

1

Described: Checked: Approved: