Akai 25CT23FSR, 29CT23FSR Schematic

COLOUR TV SET

Models:
25CT23FSR
29CT23FSR

SERVICE MANUAL

www.akai.ru

SERVICE MANUAL

TABLE OF CONTENTS

TABLE OF CONTENTS................................................................................................... 1

SAFETY INSTRUCTIONS AND MAINTENANCE......................................... 2

X-RAY RADIATION PRECAUTION.......................................................................................... 2

SAFETY PRECAUTION.............................................................................................................. 2

PRODUCT SAFETY NOTICE .................................................................................................... 3

SAFETY SYMBOL DESCRIPTION........................................................................................... 3

MAINTENANCE............................................................................................................................ 4

ADJUSTMENTS .................................................................................................................. 5

SET-UP ADJUSTMENTS ........................................................................................................... 5

CIRCUIT ADJUSTMENTS.......................................................................................................... 8

STRUCTURE AND CHASSIS FUNCTION DESCRIPTION..................... 14

STRUCTURE BLOCK DIAGRAM ............................................................................................. 14

BLOCK DIAGRAM FOR SUPPLY VOLTAGE SYSTEM ...................................................... 15

CHASSIS DESCRIPTION ...........................................................................................................16

SERVICE DATA ..................................................................................................................17

TECHNICAL DATA OF KEY ICS ...............................................................................................17

WAVEFORMS OF KEY POINTS ...............................................................................................35

SERVICE DATA OF KEY ICS ....................................................................................................38

REPLACEMENT OF PARTS .......................................................................................44

APPENDIX

1. CIRCUIT DIAGRAM

1

INSTRUCTIONS FOR SERVICE SAFETY AND MAINTENANCE

WARNING: BEFORE SERVICING THIS CHASSIS, READ THE X-RAY

RADIATION PRECAUTION , SAFETY PRECAUTION AND PRODUCT

SAFETY NOTICE INSTRUCTION BELOW.

X-RAY RADIATION PRECAUTION

1. The EHT must be checked every time the TV is serviced to ensure that the CRT does not emit

X-ray radiation as result of excessive EHT voltage. The maximum EHT voltage permissible in

any operating circumstances must not exceed the rated value. When checking the EHT, use

the High Voltage Check procedure in this manual using an accurate EHT voltmeter.

2. The only source of X-RAY radiation in this TV is the CRT. The TV minimizes X-RAY radiation,

which ensures safety during normal operation. To prevent X-ray radiation, the replacement

CRT must be

3. Some components used in this TV have safety related characteristics preventing the CRT from

emitting X-ray radiation. For continued safety, replacement component should be made after

referring the PRODUCT SAFETY NOTICE below.

4. Service and adjustment of the TV may result in changes in the nominal EHT voltage of the

CRT anode. So ensure that the maximum EHT voltage does not exceed the rated value after

service and adjustment.

identical to the original fitted as specified in the parts list.

SAFETY PRECAUTION

WARNING: REFER SERVICING TO QUALIFIED SERVICE PERSONNEL ONLY.

1. The TV has a nominal working EHT voltage. Extreme caution should be exercised when

working on the TV with the back removed.

1.1 Do not attempt to service this TV if you are not conversant with the precautions and procedures

for working on high voltage equipment.

1.2 When handling or working on the CRT, always discharge the anode to the TV chassis before

removing the anode cap in case of electric shock.

1.3 The CRT, if broken, will violently expel glass fragments. Use shatterproof goggles and take

extreme care while handling.

1.4 Do not hold the CRT by the neck as this is a very dangerous practice.

2. It is essential that to maintain the safety of the customer all power cord forms be replaced

exactly as supplied from factory.

3. Voltage exists between the hot and cold ground when the TV is in operation. Install a suitable

isolating transformer of beyond rated overall power when servicing or connecting any test

equipment for the sake of safety.

4. When replacing ICs, use specific tools or a static-proof electric iron with small power (below

35W).

5. Do not use a magnetized screwdriver when tightening or loosing the deflection yoke assembly

to avoid electronic gun magnetized and decrement in convergence of the CRT.

2

6. When remounting the TV chassis, ensure that all guard devices, such as nonmetal control

buttons, switch, insulating sleeve, shielding cover, isolating resistors and capacitors, are

installed on the original place.

7. Replace blown fuses within the TV with the fuse specified in the parts list.

8. When replacing wires or components to terminals or tags, wind the leads around the terminal

before soldering. When replacing safety components identified by the international hazard

symbols on the circuit diagram and parts list, it must be the company-approved type and must

be mounted as the original.

9. Keep wires away from high temperature components.

PRODUCT SAFETY NOTICE

CAUTION: FOR YOUR PROTECTION, THE FOLLOWING PRODUCT SAFETY NOTICE

SHOULD BE READ CAREFULLY BEFORE OPERATING AND SERVICING THIS TV SET.

1. Many electrical and mechanical components in this chassis have special safety-related

characteristics. These characteristics are often passed unnoticed by a visual inspection and

the X-ray radiation protection afforded by them cannot necessarily be obtained by using

replacements rated at higher voltages or wattage, etc. Components which have these special

safety characteristics in this manual and its supplements are identified by the international

hazard symbols on the circuit diagram and parts list. Before replacing any of these components

read the parts list in this manual carefully. Substitute replacement components which do not

have the same safety characteristics as specified in the parts list may create X-ray radiation.

2. Do not slap or beat the cabinet or CRT, since this may result in fire or explosion.

3. Never allow the TV sharing a plug or socket with other large-power equipment. Doing so may

result in too large load, causing fire.

4. Do not allow anything to rest on or roll over the power cord. Protect the power cord from being

walked on, modified, cut or pinched, particularly at plugs.

5. Do not place any objects, especially heavy objects and lightings, on top of the TV set. Do not

install the TV near any heat sources such as radiators, heat registers, stove, or other

apparatus that produce heat.

6. Service personnel should observe the SAFETY INSTRUCTIONS in this manual during use and

servicing of this TV set. Otherwise, the resulted damage is not protected by the manufacturer.

SAFETY SYMBOL DESCRIPTION

The lightning symbol in the triangle tells you that the voltage inside this product

may be strong enough to cause an electric shock. Extreme caution should be

exercised when working on the TV with the back removed.

This is an international hazard symbol, telling you that the components identified

by the symbol have special safety-related characteristics.

FDA This symbol tells you that the critical components identified by the FDA marking

have special safety-related characteristics.

UL This symbol tells you that the critical components identified by the UL marking

3

have special safety-related characteristics.

C UL This symbol tells you that the critical components identified by the C-UL marking

have been evaluated to the UL and C-UL standards and have special

safety-related characteristics.

VDE This symbol tells you that the critical components identified by the VDE marking

have special safety-related characteristics.

MAINTENANCE

1. Place the TV set on a stable stand or base that is of adequate size and strength to prevent it

from being accidentally tipped over, pushed off, or pulled off. Do not place the set near or

over a radiator or heat register, or where it is exposed to direct sunlight.

2. Do not install the TV set in a place exposed to rain, water, excessive dust, mechanical

vibrations or impacts.

3. Allow enough space (at least 10cm) between the TV and wall or enclosures for proper

ventilation.

4. Slots and openings in the cabinet should never be blocked by clothes or other objects.

5. Please power off the TV set and disconnect it from the wall immediately if any abnormal

condition are met, such as bad smell, belching smoke, sparkling, abnormal sound, no

picture/sound/raster. Hold the plug firmly when disconnecting the power cord.

6. Unplug the TV set from the wall outlet before cleaning or polishing it. Use a dry soft cloth for

cleaning the exterior of the TV set or CRT screen. Do not use liquid cleaners or aerosol

cleaners.

4

ADJUSTMENTS

SET-UP ADJUSTMENTS

The following adjustments should be made when a complete realignment is required or a new

picture tube is installed.

Perform the adjustments in the following order:

1. Color purity

2. Convergence

3. White balance

Notes:

The purity/convergence magnet assembly and rubber wedges need mechanical

positioning. Refer to Fig1, 2.

For some picture tubes, purity/ convergence adjustments are not required.

1. Color Purity Adjustment

Preparation:

Before starting this adjustment, adjust the vertical sync, horizontal sync, vertical amplitude and

focus.

1.1 Face the TV set north or south.

1.2 Connect the power plug into the wall outlet and turn on the main power switch of the TV set.

1.3 Operate the TV for at least 15 minutes.

1.4 Degauss the TV set using a specific degaussing coil.

1.5 Set the brightness and contrast to maximum.

1.6 Counter clockwise rotate the R /B low brightness potentiometers to the end and rotate the

green low brightness potentiometer to center.

1.7 Receive green raster pattern signals.

1.8 Loosen the clamp screw holding the deflection yoke assembly and slide it forward or backward

to display a vertical green zone on the screen. Rotate and spread the tabs of the purity magnet

around the neck of the CRT until the green zone is located vertically at the center of the screen.

1.9 Slowly move the deflection yoke assembly forward or backward until a uniform green screen is

obtained.

1.10 Tighten the clamp screw of the assembly temporarily. Check purity of the red raster and blue

raster until purities of the three rasters meet the requirement.

2. Convergence Adjustment

Preparation:

Before attempting any convergence adjustment, the TV should be operated for at least 15

minutes.

2.1 Center convergence adjustment

2.1.1 Receive dot pattern.

2.1.2 Adjust the brightness/contrast controls to obtain a sharp picture.

2.1.3 Adjust two tabs of the 4-pole magnet to change the angle between them and red and blue

vertical lines are superimposed each other on the center of the screen.

5

Yok

Fig. 1

2.1.4 Turn both tabs at the same time keeping the angle constant to superimpose red and blue

horizontal on the center of the screen.

2.1.5 Adjust two tabs of the 6-pole magnet to superimpose red/blue line and green line.

2.1.6 Remember red and blue movement. Repeat steps 2.1.3 2.1.5 until optimal convergence is

obtained.

2.2 Circumference convergence adjustment

2.2.1 Loosen the clamp screw holding the deflection yoke assembly and allow it tilting.

2.2.2 Temporarily put the first wedge between the picture tube and deflection yoke assembly.

Move front of the deflection yoke up or down to obtain better convergence in circumference.

Push the mounted wedge in to fix the yoke temporarily.

2.2.3 Put the second wedge into bottom.

2.2.4 Move front of the deflection yoke to the left or right to obtain better convergence in

circumference.

2.2.5 Fix the deflection yoke position and put the third wedge in either upper space. Fasten the

deflection yoke assembly on the picture tube.

2.2.6 Detach the temporarily mounted wedge and put it in either upper space. Fasten the

deflection yoke assembly on the picture tube.

2.2.7 After fastening the three wedges, recheck overall convergence and ensure to get optimal

convergence. Tighten the lamp screw holding the deflection yoke assembly.

3. White Balance Adjustment

Generally, white balance adjustment is made with professional equipment. It’s not practical to

get good white balance only through manual adjustment. For TVs with I2C bus control, change

the bus data to adjust white balance.

6

Fig. 2

4-pole Magnet Movement 6-pole Magnet Movement

Center Convergence by Convergence Magnets

Incline the Yoke Up (or Down) Incline the Yoke Right (or Left)

Circumference Convergence by DEF Yoke

Fig.3

7

CIRCUIT ADJUSTMENTS

Preparation:

Circuit adjustments should be made only after completion of set-up adjustments.

Circuit adjustments can be performed using the adjustable components inside the TV set. For TVs

2

with I

C bus control, first change the bus data.

1. Degaussing

A degaussing coil is built inside the TV set. Each time the TV is powered on, the degaussing

coil will automatically degauss the TV. If the TV is magnetized by external strong magnetic field,

causing color spot on the screen, use a specific degausser to demagnetize the TV in the

following ways. Otherwise, color distortion will be shown on the screen.

1.1 Power on the TV set and operate it for at least 15 minutes.

1.2 Receive red full-field pattern.

1.3 Power on the specific degausser and face it to the TV screen.

1.4 Turn on the degausser. Slowly move it around the screen and slowly take it away from the TV.

1.5 Repeat the above steps until the TV is degaussed completely.

2. Confirmation and Adjustment for Voltage

Caution: +B voltage has close relation to high voltage. To prevent X-ray radiation, set +B

voltage to the rated value.

2.1 Power on the TV and receive Philips test pattern.

2.2 Check the resistors and coils for being burned. (If the fuse is burned out, do not power on the

TV again until the cause is found out.)

2.3 Measure voltages of test points with the digital voltmeter. Measure the CRT high voltage with

the high-voltage testing equipment and heater voltage with the high-frequency effective

voltmeter. The rated values are shown as table 2.

Table 2

Test Point Voltage (V)

Negative of VD831 145 1.5V

Negative of VD461B 12 1V

Negative of VD832 15 1V

Positive of C462 17 1V

Positive of C452 47 3V

Positive of C492 195 5V

Heater 6.3 0.3Vrms

CRT 28.8KV 1KV

3. High Voltage Inspection

Caution: No high voltage adjustment components inside the chassis. Please perform

high voltage inspection in the following ways.

8

3.1 Connect a precise static high voltmeter to the second anode (inside the high voltage cap) of the

CRT.

3.2 Plug in the supply socket (150-250V ~, 50Hz) and turn on the TV. Set the brightness and

contrast to minimum (0 A).

3.3 The high voltage reading should be less than the limited EHT voltage.

3.4 Change the brightness from minimum to maximum, and ensure high voltage not beyond the

limitation in any case.

Nominal EHT voltage: 28.8KV 1KV Limited EHT voltage: 32KV

4. Focus Adjustment

Caution: Dangerously high voltages are present inside the TV. Extreme caution should

be exercised when working on the TV with the back removed.

4.1 After removing the back cover, look for the FBT on the main PCB. There should be a FCB on

the FBT.

4.2 Power on the TV and preheat it for 15 min.

4.3 Receive a normal TV signal. Rotate knob of the FCB until you get a sharp picture.

Before Adjusting After Adjusting

Fig. 4

5. Safety Inspection

5.1 Inspection for insulation and voltage-resistant

Perform safety test for all naked metal of the TV. Supply high voltage of 3000V, 50Hz (limit

current of 10mA) between all naked metal and cold ground. Test every point for 3 sec. and

ensure no arcing and sparking.

5.2 Requirements for insulation resistance

Measure resistance between naked metal of the TV and feed end of the power cord to be

infinity with a DC-500 high resistance meter and insulation resistance between the naked metal

and degaussing coil to be over 20M .

6. SERVICE mode

6.1 To enter the SERVICE mode

Set the volume to 0 by the remote control. Then press and hold the MUTE button on the

remote control and MENU button on the TV at the same time for over 2 seconds. In the S mode,

press the POWER button to quit the S mode.

S

( S is red and other items are yellow.)

9

Use the / buttons on the remote control to highlight an adjustment and the / buttons

to adjust it.

The POS+/-, / / / ,1~6, RECALL, VOL+/-, MUTE and POWER buttons on the remote

control function in the S mode, but 100+, 7, 8, 9 and 0 buttons not.

6.2

Bus data

Table 3 Bus data

Data in S

Mode

OP1 7B Option set byte 1 See Table 4

OP2 48 Option set byte 2 See Table 4

OP3 FF Option set byte 3 See Table 4

OP4 F5 Option set byte 4 See Table 4

OP5 36 Option set byte 5 See Table 4

OP6 28 Option set byte 6 See Table 4

AVG Vertical output

INIT Initializing E2PROM

TAB Data check sheet See Table 5

VX00 19 4:3

VX50 01 16:9

VX99 38 Zoom

VS Set to the optimum Half vertical output

VA Set to the optimum

SC Set to the optimum S correction

VSH Set to the optimum

5OV Set to the optimum

HP Set to the optimum Parallelogram correction

HB Set to the optimum Bow correction

5HS Set to the optimum

5HA Set to the optimum

Adjustment Description

Vertical amplitude (When vertical frequency is identified to

50Hz, “5VA” is displayed when identified to 60Hz, “6VA”

displayed.)

Vertical shift (When vertical frequency is identified to 50Hz,

“5VSH” is displayed when identified to 60Hz, “6VSH”

displayed.)

Character field starting position (When vertical frequency is

identified to 50Hz, “5OV” is displayed when identified to

60Hz, “6OV” displayed.)

Horizontal shift (When vertical frequency is identified to

50Hz, “5HS” is displayed when identified to 60Hz, “6HS”

displayed.)

Horizontal amplitude (When vertical frequency is identified to

50Hz, “5HA” is displayed when identified to 60Hz, “6HA”

displayed.)

( continued )

10

East-west pincushion correction (When vertical frequency is

5EW Set to the optimum

UCP Set to the optimum Upper corner correction

BCP Set to the optimum Bottom corner correction

TC Set to the optimum Trapezoidal correction

RCUT Set to the optimum Red gun cutoff voltage

GCUT Set to the optimum Green gun cutoff voltage

RDRV Set to the optimum Red gun drive voltage

GDRV Set to the optimum Green gun drive voltage

BDRV 20 Blue gun drive voltage

YDFP 0D Brightness delay PAL

YDFN 0D Brightness delay NTSC

YDFS 0D Brightness delay SECAM

YDAV 0D AV brightness delay

AGC Set to the optimum Automatic gain control (AGC)

VOL 28 Volume initial value

IFFS O3 Intermediate frequency

CL OB

AGCS 03 AGC speed

VG2B 30 VG2 brightness

SVOL 36 Volume 00

MVOL 3C Volume 25

SBRI 1F Sub brightness

MBRI 33 Brightness Max.

SCON 0C Sub contrast

MCON 3F Contrast Max.

MCOL 3F Color Max.

identified to 50Hz, “5EW” is displayed when identified to

60Hz, “6EW” displayed.)

OP1

Table 4 Option bit setting

Bit Item Description

0 OP_HOTEL Hotel Mode: 1: Yes, 0: No

1 OP_HWSN Audio processor: 1: TDA9859, 0: No

2 OP_SUPERWOOFER Super woofer: 1: Yes, 0: No

3 OP_NTSC NTSC option: 1: Yes, 0: No

4 OP_AV2 1: With AV2; 0: Without AV2

5 OP_SVHS S-Video: 1: Yes, 0: No

6 OP_DVD DVD 1: Yes, 0: No

( continued )

11

7 OP_RGB RGB 1: Yes, 0: No

0 OP_AVL AVL 1: Yes, 0: No

OP2

OP3

1 OP_AUTO_SOUND

2 OP_KEY

3 OP_OSO Switch off in vertical overscan

4 OP_NOT_3 National option (disabled)

5 OP_USER_LOGO User write-in logo option (prior to Changhong logo)

6 OP_ON_BACK Power-on auto-test background: 1: Blue, 0: Black

7 OP_FSL Slicing level for vertical sync

0 OP_ENGLISH English

1 OP_FARSI Farsi

2 OP_ARABIC Arabic

3 OP_RUSSIAN Russian

4 OP_FRENCH French

5 OP_GERMAN German

6 OP_ITALY Italian

uto sound system test: 1:Yes, 0: No

Key: 1: Standard 0: Non-standard

OP4

OP5

7 OP_SPAIN Spanish

Window selection of sound PLL:

0 OP_FMWS

1: Large window, 0: Small window

OP_DIRECT_SWITCH_ONMemory on: 1: Remote on if remote off; instant on if

1

AC off 0: Soft on

2 OP_HCO EHT: EW control 1:On 0: Off

Changhong logo display

3 OP_CHH_LOGO

1: Yes under no signal condition 0: No

4 OP_SOUND_DK Audio system DK option: 1: Yes, 0: No

5 OP_SOUND_BG Audio system BG option: 1: Yes, 0: No

6 OP_SOUND_I Audio system I option: 1: Yes, 0: No

7 OP_SOUND_M Audio system M option: 1: Yes, 0: No

0 OP_TUNER Tuner 1: Philips tuner, 0: Panasonic tuner

1 OP_AUTO_LANG0

Auto language option: English - Farsi - Arabic -

2 OP_AUTO_LANG1

Russian - French - German - Italian – Spanish, for

( continued )

12

example:

OP6

3 OP_AUTO_LANG2

4 OP_FORF

5 OP_FORS

6 OP_AV_ON

7 OP_HOTEL_ON_PROG

0 OP_AUTOTEST Power-on auto test: 1: Yes, 0: No

1 OP_PSNS Sensitivity

2 OP_BSCREEN Black screen when changing channels 1: Yes 0: No

3 OP_SECAM SECAM option: 1: Yes, 0: No

4 OP_DFL Disable flash protection

LANG2 /LANG1/ LANG0

0/0/0”: English, “0/0/1”: Farsi

Vertical frequency (OP_FORS/FORF): 00-Auto (60Hz

under no signal condition), 01-KeepLast,

10-Force60Hz, 11-Auto (50Hz under no signal

condition)

1: The former mode before power-off when power-on

0: TV mode when power-on

Fixed to Channel 1 when power-on Activated with

OP-HOTEL 1: Yes, 0: No

Notes:

5 OP_SIF SIF selection 1: External, 0: Internal

6 OP_EXT_SIF0

7 OP_EXT_SIF1

Table 5 TAB data check sheet

OP1 OP2 OP3 OP4 OP5 OP6

VX00 YD( FP/FN/FS/ AV) AGC I FFS CL AGCS

VOL VG2B SVOL MVOL

SBRI MBRI SCON MCON MCOL

RCUT GCUT RDRV GDRV BDRV

The data sheet may differ dependent on different models.

The data sheet may differ dependent on different CRTs for the same model.

External circuit sound system selection (SIF1/SIF0)

00: DK, 01: BG, 10: I, 11: M

Activated with OP-SIF

13

STRUCTURE AND CHASSIS FUNCTION DESCRIPTION

A

)

(

)

1. Structure Block Diagram

From

ntenna

Tuner

A100

EEPROM

AT24C08

(N200)

I2C BUS

SDA

SCL

IF Pre-

Amplifier

+

SAWF

Analog switch

Band 1, 2
Vt, AGC

UOC

TDA9384/CH05T1610 (N100)

H. Drive
V432

HEF4053(N350

CRT
Drive
TDA6107Q
(NY01)

V.OUT
TDA8350 (N400)

YUV In

AV I/O

CRT

V.OUT

R-AMP

Audio Processor

TDA9859

Audio Amplifier
TDA7057AQ

Speaker

R

Speaker

L

N606

(N600)

H.OUT

V436

Power

150-250V

AC 50Hz

Fig.5 Structure Block Diagram

Supply
Circuit
STR-F6454R
or STR-F6656

(N801)

FBT

+145V

+15V

+16V-S

+5V-2

+3.2V

190V
45V
16V
8V
5V-1

14

2. Block Diagram for Supply Voltage System

15

Fig.6 Block Diagram for Supply Voltage System

150-250V

AC, 50Hz

3. Chassis Description

General Description

CH-16 chassis is applied in PF2939S, which mainly uses Philips’ advanced UOC-ultimate one

chip TDA938X and I2C-bus controlled IC. With combination of microcontroller and small signal

processor, the TDA938X features high-integrity, high-performance-to-price ratio and

high-reliability and advanced functions with fewer external components, which provide much

more convenience for manufacturing and technical service. In addition, TDA938X is good in

geometric distortion, more suitable for pure flat TV sets.

The following features are available in the chassis:

PAL/NTSC/SECAM reception

Real time clock/Child lock/Alarm/Electronic program guide

Auto identification of video signal source

Auto identification of color/audio system

AV input/output

CCD/V-CHIP

PAL/NTSC D-COMB

HI-FI stereo

Surround

The chassis mainly uses the following ICs and assemblies.

Table 6 Key ICs and Assemblies

Serial No. Position Type Function Description

1 N100 TDA9384 (CH05T1610) Microcontrollerand small signal processor (UOC)

2 N200 AT24C08 EEPROM

3 N606 TDA9859 Audio processor

4 N400 TDA8350Q-N6 Vertical scan output stage circuit

5 NY01 TDA6107Q Video amplifier

6 N801 STR-F6454R Power module

7 N350 HEF4503BP Electronic switch circuit

8 N600 TDA7057Q Sound power amplifier

9 A100 TDQ-5B6-M Tuner

16

SERVICE DATA

1. Technical Data of Key ICs

1.1 Microcontroller and Small Signal Processor TDA935X/6X/8X

(1) General Description

The various versions of the TDA935X/6X/8X PS/N2 series combine the functions of a TV

signal processor together with a -Controller and US Closed Caption decoder. Most

versions have a Teletext decoder on board. The Teletext decoder has an internal RAM

memory for 1 or 10 page text.

The ICs are intended to be used in economy television receivers with 90° and 110° picture

tubes.

The ICs have supply voltages of 8V and 3.3V and they are mounted in S-DIP envelope with

64 pins.

The features are given in the following feature list. The differences between the various ICs

are given in the table 7 on page 19.

(2) Features

TV-signal processor

Multi-standard vision IF circuit with alignment-free PLL demodulator

Internal (switchable) time-constant for the IF-AGC circuit

A choice can be made between versions with mono intercarrier sound FM demodulator and

versions with QSS IF amplifier.

The mono intercarrier sound versions have a selective FM-PLL demodulator which can be

switched to the different FM sound frequencies (4.5/5.5/6.0/6.5 MHz).

The quality of this system is such that the external band-pass filters can be omitted.

Source selection between “internal” CVBS and external CVBS or Y/C signals

Integrated chrominance trap circuit

Integrated luminance delay line with adjustable delay time

Picture improvement features with peaking (with variable centre frequency and

positive/negative overshoot ratio) and black stretching

Integrated chroma band-pass filter with switchable centre frequency

Only one reference (12 MHz) crystal required for the µ-Controller, Teletext and the color

decoder

PAL/NTSC or multi-standard color decoder with automatic search system

Internal base-band delay line

RGB control circuit with “Continuous Cathode Calibration”, white point and black level offset

adjustment so that the color temperature of the dark and the light parts of the screen can

be chosen independently.

Linear RGB or YUV input with fast blanking for external RGB/YUV sources. The Text/OSD

signals are internally supplied from the µ-Controller/Teletext decoder

Contrast reduction possibility during mixed-mode of OSD and Text signals

Horizontal synchronization with two control loops and alignment-free horizontal oscillator

Vertical count-down circuit

Vertical driver optimized for DC-coupled vertical output stages

17

Horizontal and vertical geometry processing

Horizontal and vertical zoom function for 16:9 applications

Horizontal parallelogram and bow correction for large screen picture tubes

Low-power start-up of the horizontal drive circuit

µ-Controller

80C51 µ-controller core standard instruction set and timing

1 µs machine cycle

16 - 128Kx8-bit late programmed ROM

3 - 12Kx8-bit DATA RAM (shared between Display, Acquisition and Auxiliary Ram)

Interrupt controller for individual enable/disable with two level priority

Two 16-bit Timer/Counter registers

One 16 bit Timer with 8-bit Pre-scaler

Watchdog timer

Auxiliary RAM page pointer

16-bit Data pointer

Stand-by, Idle and Power Down (PD) mode

14 bits PWM for Voltage Synthesis Tuning

8-bit A/D converter

4 pins which can be programmed as general I/O pin, ADC input or PWM (6-bit) output

Data Capture

Text memory for 0, 1 or 10 pages

In the 10 page versions inventory of transmitted Teletext pages stored in the Transmitted

Page Table (TPT) and Subtitle Page Table (SPT)

Data Capture for US Closed Caption

Data Capture for 525/625 line WST, VPS (PDC system A) and Wide Screen Signalling

(WSS) bit decoding

Automatic selection between 525 WST/625 WST

Automatic selection between 625 WST/VPS on line 16 of VBI

Real-time capture and decoding for WST Teletext in Hardware, to enable optimized

µ-processor throughput

Automatic detection of FASTEXT transmission

Real-time packet 26 engine in Hardware for processing accented, G2 and G3 characters

Signal quality detector for video and WST/VPS data types

Comprehensive teletext language coverage

Full Field and Vertical Blanking Interval (VBI) data capture of WST data

Display

Teletext and Enhanced OSD modes

Features of level 1.5 WST and US Close Caption

Serial and Parallel Display Attributes

Single/Double/Quadruple Width and Height for characters

18

Scrolling of display region

Variable flash rate controlled by software

Enhanced display features including overlining, underlining and italics

Soft colors using CLUT with 4096 color palette

Globally selectable scan lines per row (9/10/13/16) and character matrix [12x10, 12x13,

12x16 (VxH) ]

Fringing (Shadow) selectable from N-S-E-W direction

Fringe color selectable

Meshing of defined area

Contrast reduction of defined area

Cursor

Special Graphics Characters with two planes, allowing four colours per character

32 software redefinable On-Screen display characters

4 WST Character sets (G0/G2) in single device (e.g. Latin, Cyrillic, Greek, Arabic)

G1 Mosaic graphics, Limited G3 Line drawing characters

WST Character sets and Closed Caption Character set in single device

Functional Difference between the Various IC Versions

IC Version (TDA) 9350 9351 9352 9353 9360 9361 9362 9363 9364 9365 9366 9367 9380 9381

9382 9383 9384 9385 9386 9387 9388 9389

IC VERS ION (T DA )

TV ra nge

Mo no interc ar ri er m ul ti - s t a n d a r d
so un d de mo dul at o r ( 4. 5 -6.5 M Hz)
wit h s wi tch abl e ce ntr e fr eq uen c y

Au di o swi tc h

Au to ma tic Vo lu me Le ve ll in g

Au to ma ti c V olu me Le ve ll in g or
su bc ar ri er o utp ut ( fo r c ombf il ter

ap pl ic at ions )

Qs s sou n d IF amp li fi er wit h

sepa ra te i np ut a nd AG C cir cu it

AM s ou nd de mod ul ato r wi th ou t

ex tr a ref er enc e circuit

PAL d ec ode r

SE CA M d eco de r

NTS C de c o de r

Hor izo nta l g eo met ry ( E- W )

Hor izo nta l a nd Ver ti ca l Zoo m

RO M si z e

Use r RA M si ze

(3) BLOCK DIAGRAM

Telet ext

Cl os ed c a pt i on i ng

9350

90 °

V

V

V

V

V

3 2­64K

1K

1
page

V

9351

90 °

V

V

V

V

V

V

3 2 ­64 K

1K

1
page

V

9352

90 °

V

V

V

V

V

3 2 ­64 K

1K

1
page

V

9353

110 °

V

V

V

V

V

V

V

3 2­64 K

1K

1
page

V

9360

90 °

V

V

V

V

V

V

64 -

128K

2K

10
page

V

Table 7

9361

9362

90 °

110 °

V

V

V

V

V

V

V

V

V

V

V

V

V

64 -

64 -

I28K

I28K

2K

2K

10

10

page

page

V

V

9363

110 °

V

V

V

V

V

V

V

V

64-

128K

2K

10
page

V

9364

110 °

V

V

V

V

V

V

64 -

128K

2K

10
page

V

9365

110 °

V

V

V

V

V

V

V

V

64 -

128K

2K

10
page

V

9366

90 °

V

V

V

V

64 -

128K

2K

10
page

V

9367

90 °

V

V

V

V

V

64 -

128K

2K

10
page

V

9380

90 °

V

V

V

V

V

16 -

64K

1K

V

9381

90 °

V

V

V

V

V

V

16 -

64K

1K

V

9382

90 °

V

V

V

V

V

16-

64K

1K

V

9383

110 °

V

V

V

V

V

V

V

16 -

64K

1K

V

9384

110 °

V

V

V

V

V

V

V

V

16 ­64K

1K

V

9385

110 °

V

V

V

V

V

V

16 -

64K

1K

V

9386

110 °

V

V

V

V

V

V

V

V

16 ­64K

1K

V

9387

90 °

V

V

V

V

16-

64K

1K

V

9388

110 °

V

V

V

V

16 ­64K

9389

110 °

V

V

V

V

V

V

V

16­64K

1K

1K

V

V

19

(3) Block Diagram

20821

7

(4) Pining

9

(5) Refer to Table 12 about Functions and Data of the IC’s Pins.

22

1.2 Triple 2-Channel Analog Multiplexer/Demultiplexer HEF4053

(1) Description

The HEF4053 is a triple 2-channel analog

multiplexer/demultiplexer with a common

enable input (

E ). Each

multiplexer/demultiplexer has two

independent inputs/outputs (Y

and Y1), a

0

common input/output (Z), and select inputs

(Sn). Each also contains two-bidirectional

analogue switches, each with one side

connected to an independent input/output

(Y

and Y1) and the other side connected to

0

a common input/output (Z).

(2) Block Diagrams

With (

sele w impedance ON-state) by Sn.

With

E

) LOW, one of the two switches is

cted (lo

E HIGH, all switches are in the high

impedance OFF-state, independent of SA to

SC.

VDD and VSS are the supply voltage

connections for the digital control inputs (SA to

S

and E ).

C

The VDD to VSS range is 3 to 15V. The analog

inputs/outputs (Y0, Y1 and Z) can swing

between V

as a positive limit and VEE as a

DD

negative limit. VDD-VEE may not exceed 15 V.

For operation as a digital
multiplexer/demultiplexer, V

is connected to

EE

VSS (typically ground).

Fig. 10

23

Fig. 11 Pinning Diagram

H

EF4053P(N): 16-lead DIL; plastic

(SOT38-1)

H

EF4053D(F): 16-lead DIL; ceramic (cerdip)

4)

(SOT7

HEF4053T(D): 16-lead S0; plastic

(SOT109-1)

Package Designator North America

Pinning

Y0A to Y0C Independent inputs/outputs

Y

to Y1C Independent inputs/outputs

1A

SAto Sc Select inputs

E Enable input (active LOW)

ZA to Z

C

Common inputs/outputs

(3) Function Table

Inputs

E Sn

L L Y0n-Z

L H Y1n-Z

Channel

on

n

n

H X none

Notes

H=HIGH state (the more positive voltage)

L=LOW state (the less positive voltage)

alX=STATE is immateri

Fig. 12 Schematic Diagram (One Switch)

atings

R

imiting values in accordance with the Absolute Maximum System (IEC 134)

L

upply voltage (with reference to V

S

ote

N

) VEE -18 to + 0,5V

DD

To avoid drawing VDD current out of terminal Z, when switch current flows into terminals Y, the

voltage drop across the bidirecctional switch must not exceed 0,4 V. If the switch current flows

into terminal Z, no VDD current will flow out of terminals Y, in this case there is no limit for the

voltage drop across the switch, but the voltages at Y and Z may not exceed VDD or VEE.

) Refer to Table 13 about Functions and Data of the IC’s Pins.

(4

24

1.3 2×8W Stereo BTL Audio Output Amplifier with DC Volume Control TDA7057AQ

(1) Features

DC volume control

Few external components

Mute mode

Therm

al protection

Short-circuit proof

No switch-on and switch-off

clicks

Good overall stability

Low power consumption

Low HF radiation

ESD protected on all pins.

(3) Block Diagram

(2) General Description

The TDA7057AQ is a stereo BTL output amplifier

with DC volume control. The device is designed

for use in TVs and monitors, but is also suitable for

battery-fed portable recorders and radios.

Missing Current Limiter (MCL)

A MCL protection circuit is built-in. The MCL

circuit is activated when the difference in current

between the output terminal of each amplifier

exceeds 100 mA (typical 300 mA). This level of

100 mA allows for single-ended headphone

applications.

Fig. 13

(4) Refer to Table 14 about Functions and Data of the IC’s Pins.

25

1.4 DC- coupled Vertical Deflection circuit TDA8356/N6

(1) F

eatures

Few external components
H led vertical outpu

ighly efficient fully DC-coup t bridge circuit
Vertical flyback
Guard circuit
Protection against:
Short-circuit of the output pins (7 and
Short-circuit of the output pins to Vp
T

emperature protection
High EMC immunity because of common mod
A guard signal in zoom mode.

(2

) General Description

The TDA8356 is a power circuit for use in 9 colour deflection systems for field
frequencies of 50 to 120 Hz. The circuit provides a DC driven vertical deflection output circuit,
operating as a highly

) Block Diagram

(3

switch

4)

e inputs

0 and 110

efficient class G system.

26

Fig.14

(4) Pinning

Fig.15

Table 8

Symbol Pin Description

I

drive(pos)

I

drive(neg)

1 Input power-stage (positive); includes II

2 Input power-stage (negative); includes II
VP 3 Operating supply voltage
V

O(B)

4 Output voltage B
GND 5 Ground
V

FB

V

O(A)

V

O(guard)

V

I(fb)

6 Input flyback supply voltage

7 Output voltage A

8 Guard output voltage

9 Input feedback voltage

(5) Refer to Table 15 about Functions and Data of the IC’s Pins.

signal bias

(sb)

signal bias

(sb)

27

1.5 Universal

Hi-Fi Audio Processor for TV TDA9859

(1) Features

Multi-source selector switches six AF

inputs (three stereo sources or six mono

sources)

Each of the input signals can be switched

to each of the outputs (crossbar switch)

Outputs for loudspeaker channel and

peri-TV connector (SCART)

Switchable spatial stereo and pseudo

stereo effects

(3) Block Diagram

Note: For extended bass control, the capacitor between C

be replaced by the extended bass control network.

Audio surround decoder can be added

externally

Two general purpose logic output ports

2

I

C-bus control of all functions.

(2) General Description

The TDA9859 provides control facilities

for the main and the SCART channel of

a TV set. Due to extended switching

possibilities, signals from three stereo

sources can be handled.

Fig. 16

BR/L1

and C

BR/L2

should

(4) Refer to Table 16 about Functions and Serv

ice Data of the IC’s Pins.

28

1.6 Switch-mode Power Supply STR- F6454R/F6656

T F6454R/F6654 is specifically designe d

he Series STR- d to satisfy the requirements for increase

in esonant fly rs. The series incorporates a

tegration and reliability in off-line quasi-r

high rive circuit with discrete avalanche-rated power

-precise error amplifying control and d

back converte

MOSFET, featuring fewer external components, small-size and standard power supply.

Cov s up to 300

ering the power range from below 25 watt watts for 100/115/230 VAC inputs, and up

to sal input, these devices can be used in a range of

150 watts for 85 to 265 VAC univer

app d set top boxes, to t

lications, from battery chargers an

sup

ply units.

elevisions, monitors, and industrial power

Cycle-by-cycle current limiting, under-voltage lockout with hysteresis, over-voltage protection, and

thermal shutdown protects the power supply during the normal overload and fault conditions.

Low-current startup and a low-power standby mode selected from the secondary circuit completes

a compre s suite f features. The series is provided in a five-pin overmolded SIP style

hen ive o

package, affording dielectric isolation without compromising thermal characteristics.

(1) Features

Flyback Operation with Quasi-Resonant Soft Switching for Low Power Dissipation and EMI

Rugged Avalanche-Rated MOSFET

Soft drive circuit MOSFET

Adjustable MOSFET switching speed

Choice of MOSFET Voltage and r

DS(on)

Full Over-Current Protection (no blanking)

Under-Voltage Lockout with Hysteresis

Over-Voltage Protection

Direct Voltage Feedback

Low Start-up Current (100 Amax)

Low-Frequency, Low-Power Standby Operation

Overmolded 5-Pin Package

29

(2) Circuit Block Diagram

(3) Pin Configuration and Functions

Fig. 17

Dwg MK-003-50mm

Fig. 18

30

Table 9 Pin Function for STR-F6454R/F6656

Symbol Function Description

1 OCP/FB Over-current protection detection signal/ voltage-limiting signal input

2 S MOSFET source

3 D MOSFET drain

4 V

Supply voltage input for control circuit

IN

5 GND Ground

31

1.7 Triple Video Output Amplifier TDA6108JF/6107Q

(1) Features

Typical bandwidth of 9.0MHz (for

TDA6108J

for an output signal of k

value)

High ew rate 850

TDA6108JF) s (for

TDA6107Q)

No external components required

Very simple application

Single supply voltage of 200 V

Internal reference voltage of 2.5 V

Fixed gain of 51 (for TDA6108JF) or 50 (for

TDA6107Q)

Black-Current Stabilization (BCS) circuit

Thermal protection.

F) or 5.5MHz (for TDA6107Q)

60 V (peak-to-pea

sl of 1 V/ s (for

or 900V/

(2) General Description

The TDA6107Q/6108JF includes three video

output amplifiers in one plastic DIL-b

9-pin medium power (DBS9MPF) package (SOT

111-1), using high-voltage DMOS technology,

and is inte

colour CRT directly. To obtain maximum

performance, the amplifier should be used with

black-current control.

(3) Ordering Information

Type

Number

nded to drive the three cathodes of a

Table 10

Package

Name Description Version

Plastic

ent-SIL

(4) Block Diagram

TDA6108JF/

TDA6107Q

DBS9MPF

DIL-bent-SIL

medium power

package with fin;

9 leads

Fig. 19

SOT111-1

32

Table 11 Pinning

Symbol Pin Description

V

i(1)

V

i(2)

V

i(3)

1 Inverting input 1

2 Inverting input 2

3 Inverting input 3

GND 4 ground (fin)

Black-current

Iom 5

measurement output

VDD 6 Supply voltage

V

oc(3)

V

oc(2)

V

oc(1)

7 Cathode output 3

8 Cathode output 2

9 Cathode output 1

(5) Refer to Table 17 about Functions and Data of the IC’s Pins.

. 20 Pin Co

Fig nfiguration.

33

1

.8 EEPROM AT24C08

(1) Features

Data EEPROM internally organized as 1024/2048

bytes and 64/128 pages×16 bytes

Page rotection mode, y-

p flexible page-b page

hardware write protection

- Additional protection EEPROM of 64/128 bits, 1 bit
per data page

- Protection setting for each data page by writing its
protection bit

- Protection management without switching WP in

p
Low power CMOS

Vcc=2.7 to 5.5V operation

Two wire serial interface bus, I

C-Bus compat

ible

2

Filtered inputs for noise suppression with Schmitt

trigger

Clock frequency up to 400 kHz

High programming flexibility

- Internal programming voltage

- Self timed programming cycle including erase

- Byte-write and page-write programming, between 1 and 16 bytes

- Typical programming time 6 ms (<10 ms) for up to 16 bytes
High reliability

- Endurance 10

6

- Data retention 40 years

cycles

1)

1)

- ESD protection 4000 V on all pins

8 pin DIP/DSO

packages

Available for extended temperature ranges

- Industrial: -40

- Automotive: -40

to +85

to +125

(3) Block Diagram

(2) Pin Configuration

Fig. 21

Fig. 22

Page

Prot.Bit

EEPROM

(4) Refer to Table 18 About Functions and Service Data of AT24C08’s Pins.

34

2. Waveforms of Ke

1-TDA938X-PIN4 2-TDA938X-PIN5

y Points

3-TDA938X-P PIN8

5-TDA938X-PIN22 6-TDA938X-PIN26

IN7 4-TDA938X-

35

7-TDA938X-PIN31 8-TDA938X-PIN33

-TDA938X-PIN34 10-TDA938X-PIN38

9

11-TDA938X-PIN40 12-TDA938X-PIN42

36

13-TDA938X-PIN44 14-TDA938X-PIN49

15-TDA938X-PIN58 16-Horizontal

17-Waveform of Line Drive Voltage 18-Waveform of Horizontal Scan Current

Flyback Pulse

19-Waveform of Vertical Scan Current

37

. Service Data of Key ICs

3

Table 12 Functions and Service Data of TDA9384 (N100)’s Pins

Digital Multimeter Victor DT890D

Pin No.

1

2

3

4

5

6

7

8

9

10

11

12

Function Description

P1.3/T 33.4 1 6.63 6.6

P1.7/SDA 2.7 6.59 6.63

P2.0/TPW 18.1 M 19.02 36.13

P3.0/ADC0/PWM0 0.17 1.6 1.63

P3.1/ADC1/PWM1 0.1 4.87 4.87

P3.2/ADC2/PWM2 0.02 7.55 7.57

P3.3/ADC3/PWM3 0.02 7.54 7.55

Reference Voltage

(V)

78.2 LCS/6.1P 6.58 6.64

0 P/CSSV 0 0

20.0 5.0P 4.88 4.9

60.3 6.0P 5.05 5.07

0 ASSV 0 0

Positive Resistance

(K )

Negative Resistance

(K )

13

14

15

16

17

18

19

20

21

22

23

24

25

92.2 LLPCES 21.46 27.35

68.7 2PV 1.27 1.29

99.4 GIDCED 16.2 23.33

PH2LF 3.43 21.01 27.32

PH1LF 3.9 21.33 27.58

0 3DNG 0 0

99.3 GBCED 18.75 24.58

AVL/EW 20.36 26.37D (1) 0.74

3.2 ARDV 20.21 27.28

IF 43.2 1NI 19.53 27.27

IF 58.1 2NI 20.55 24.87

IREF 48.1 20.63 24.87

T 58.3 CGARENU 21.14 25.33

( continued )

38

26

26

AUDEEM/SIFIN1(1)

AUDEEM/SIFIN1(1) 3.77 21.42 27.443.77 21.42 27.44

27

28

29

30

31

32

33

34

35

36

37

38

39

40

DECSDEM/SIFIN2(1) 3.96 8.25 8.3

3.3 2DNG 20.45 26.76

VSSA 2.42 27.5

SECPLL 0 0 0

SNDPLL/SIFAGC(1)

AVL/SNDIF/REF0/AMOUT(1) 0.13 26.2320.2

HOUT 3 16.08 24.39

FBISO 0.73 20.3 26.33

AUDEXT/QSSO/AMOUT(1) 3.72 22.04 27.46

AUDEXT/ 1.98 8.48 8.66

QSSO/AMOUT(1) 2.44 21.48 1.98

AUDEXT/ 2.87 21.62 23.98

QSSO/AMOUT(1) 7.86 1.26 1.31

AUDEXT 66.3 / 21.24 27.2

2.42 21.8 27.58

21.54

41

42

43

44

45

46

47

48

49

50

51

52

53

54

GND1 0 0 0

CVBS/Y 3.76 21.12 27.2

CHROMA 1 83.1 26.67.48

AUDOUT /AMOUT(1) 3.56 21.97 27.71

INSSW 86.1 2 19.35 22.46

R2/VIN 2.54 21.7 1.83

G2/YIN 2.54 21.76 1.83

B2/UIN 2.54 21.76 1.83

BCLIN 2 21.76 27.1.71

BLKIN 3.19 20.81 21.25

RO 2.38 18.64 6.94

GO 2.3 6.92 6.89

BO 2.4 6.89 6.89

VDDA 3.23 6.89 0.63

55

56

VPE 0 0.62 0

VDDC 3.28 0.62 0.63

continued )continued )

(

39

57

OSCGND 0 0 0

58

59

60

61

62

63

64

Pin No.

1

2

XTALIN 1.5 16.83 31.63

XTALOUT 76.1 16.73 27.8

RESET 0 0 0

VDDP 3 0.62 0.63.3

P1.0/INT1 0.03 13.12 13.47

P1.1/T0 0.03 13.15 13.62

P1.2/INT0 96.4 16.45 19.94

Table 13 Functions and Service Data of HEF4053 (N350 )’s Pins

Digital Multime Victor DT890D

Function Desc

Ground 3.0 22.2 47.0

Signal input 3.9 22.2 47.0.

ription

Reference Voltage Positive Resistance Negative Resistance

(V)

ter

(K ) (K )

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Signal input 21.2 40.01.3

Signal output 2.5 0 0

Signal input 2.4

0 dnuorG 0 0

0 dnuorG 0 0

0 dnuorG 0 0.

Control signal input 0.03 13.5 13.1

Control signal input 0.03 13.5 13.1

Control signal input 0.03 13.5 13.1

Signal input 3.9 22.2 47.0

Signal output 0.7 22.2 47.0

Signal input 3.9 21.9 26.0

Audio output 3.9 21.9 26.0

Supply voltage 7.8 0 0

- -

40

Pin No.

Table 1

Functi

4 Functions and Service Data of TDA7057AQ (N600)’s Pins

Digital Multimeter

on Description

erenc

Ref e Voltage

Positive Resistance

Negati stance

ve Resi

(V)

Volume control input 350. 7.05 7.05

1

Not connected 0

2

Audio R signal input 62.3 23.54 54.61

3

S e 23upply voltag 15. 0.41 0.41

4

Audio L signal input 2.36 23.54 54.61

5

6

Volume control input 0.35 7.057.05

7

Left ch outpuannel in-phase signal t 7.35 18.74 21.49

8

9

Left channel inverting signal output 39 7

0

1

ght channe

Ri l inverting signal

11

tput

ou

2

1

0 dnuorG 0 0

0 dnuorG

7. 18.4 21.47

7.39 18.47 21.47

0 dnuorG

(20K )

0 0

0 0

0K

(2 )

ight channe

R l in-phase signal

13

ou

tput

7.4 16.47 21.46

Table 15 Functions and Service Data of TDA8356 (N400)’s Pins

Digital Multimeter Victor DT890DPin

No.

1 I

dr4ive(pos)

2 I

dr.4ive(neg)

3 V 4.51 26.3 13.5

4 V

P

O(B)

5 GND 0 0 0

6 V .0 .3

7 V .5 .1

8 V

9 V

FB

O(A)

O(guard)

I(fb)

Symbol

Reference

Voltag (K (K )

e (V)

Positive Resistance )Negative Resistance

2. 27.7 20.3

2 27.7 20.4.

7.7 6.1 6.1

45 113 13.7

7 6 6.1

2.0 10.0 9.7.

7.7 6.1 6.1

41

Pin No.

Table 16 Functions and Service Data of TDA9859(N606 )’s Pins

Digital Multimeter: Victor DT890D

Fu

nction Description

Re

ference Voltage P)ositive Resistance

N

egative Resistance

1

2

3

4

5

6

7

8

9

10

11

(V

Audio input 3.8 20 24 .53 7.75

Output 1 0.19 7.8 75 .84

Audio input 3.8 24 0.46 27.73

Reference volta

capacitor

Audio input 3.84 20.4 27.653

Supply voltage 7.6 19 .28 1.28

Audio output 3.85 21.24 27.19

Ground 0 0 0

Audio output 3.85 19.93 26.27

Audio input 8 3.85 19.93 26.31

Channel 1 audio

compens

ge for filtering

7.63 7.39

3.85 20.67 25.854

ation

(K )

(K )

7.39

12

13

14

15

16

1

18

1

2

2

22

2

24

Channel 2 audio

3.85 21.45 27.59

compensation

Audio output 8 0.01

Treble compensation 3.84 22.31 27.01

Audio output 3.84 14.72 14.79

Clock line 6

Serial data line 8 54 .62

7

Audio output 3.84 14.44 14.5

Treble compensati

9

Audio output

0

Bass2 compensation 5 .44 7.55

1

Bass1 compensation 3.85 20.66 25.85

Audio input 5 88 .27

3

Audio output 3.85 19.88 26.26

on 3.84 22.32 27.02

2.9 .58 6.64

2.6 6. 6

0

3.8 21 2

3.8 19. 26

( continued )

42

25

Mode 0address selection 0 0

26

27

28

29

30

31

32

Pin No.

1

2

3

Audio output 3.85 21.24 27.1

Audio compensation 1 3.84 12.29 27.84

Audio input 7.64 1.3 1.31

Audio compensation 1 3.84 22.32 27.4

Audio input 3.84 20.45 28.58

Output 2 4.55 7.54 7.54

Audio input 3.84 20.52 27.56

T Functions and Service Data of TDA6107Q/TDA6108JF (NY01)’s Pins

able 17

Digital Multimeter

Function Description

G inverting input 3.33 5.32 4.72

R inverting input 3.26 5.32 4.72

B inverting input 3.28 5.32 4.72

Reference Voltage

(V)

Positive Resistance

(20K )

Negative Resistance

(20K )

4

Black level current input 6.03 18.65 5.65

5

Supply voltage 199 4.48

6

B output 69.9 5.45

7

R output 69.18 5.45

8

G output 65.9 5.45

9

Table 18 Functions and Serv Data of AT24C 200)’s Pins

Pin No.

1 Address input 0 0 0

2 Address input 0 0 0

3 Address input 4.93 3.18 3.2

4 Common ground 0 0 0

5 Clock line 3.35 6.55 6.61

6 Data line 3.42 6.56 6.64

7 PW write protect 0 20.78

8 Supply voltage 4.93 3.18 3.2

Function

Description

Reference Voltage Positive Resistance(Negative Resistance

00.0 dnuorG 0.00 0.00

ice 08 (N

Digital Multimeter

(V) 20K ) 20K )

(

43

REPLACEMENT OF PARTS

1 sc

. De ription

Many electrical and mechanical components in this chassis have special safety-related

characteristics. his m

nd identified by the rnational haza bols or UL, FCC, FDA or

a its supplements are inte rd sym

VDE the circuit diagram and parts list. When repl any of these c ents,

marking on acing ompon

substitute the one which has the same safety characteristics as specified in the manual.

Description of the special markings:

A: The components identified by the A marking have special safety-related characteristics.

A pecial

E: The components identified by the AE marking are listed by EMC and have s

safety-related characteristics.

CB: The components identified by the CB marking have been evaluated to the CB standard.

The components identified by li

E: the E marking are sted by EMC

G: The components identified by the G m ing have critic cteristics.

Z: The components identified by the Z marking have important characteristics.

Components which have these special safety characteristics in t anual

ark al chara

44

APPENDIX

CIRCUIT

DIAGRAM

JUC .8 20 .6 44

JUC .8 20 .7 25

JUC .8 20 .5 91

JUC .8 20 .9 75