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COLOUR TV SET
Models:
25CT23FSR
29CT23FSR
SERVICE MANUAL
www.akai.ru
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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
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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.
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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
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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.
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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.
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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.
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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
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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.
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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.)
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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 )
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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 )
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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 )
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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
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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
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2. Block Diagram for Supply Voltage System
15
Fig.6 Block Diagram for Supply Voltage System
150-250V
AC, 50Hz
Page 17
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
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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
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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
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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
Page 21
(3) Block Diagram
20821
7
Page 22
Page 23
(4) Pining
9
(5) Refer to Table 12 about Functions and Data of the IC’s Pins.
22
Page 24
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
Page 25
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
Page 26
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
Page 27
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
Page 28
(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
Page 29
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
Page 30
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
Page 31
(2) Circuit Block Diagram
(3) Pin Configuration and Functions
Fig. 17
Dwg MK-003-50mm
Fig. 18
30
Page 32
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
Page 33
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
Page 34
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
Page 35
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
Page 36
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
Page 37
7-TDA938X-PIN31 8-TDA938X-PIN33
-TDA938X-PIN34 10-TDA938X-PIN38
9
11-TDA938X-PIN40 12-TDA938X-PIN42
36
Page 38
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
Page 39
. 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
Page 40
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
Page 41
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
Page 42
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
Page 43
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
Page 44
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
Page 45
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
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Page 46
APPENDIX
CIRCUIT
DIAGRAM
JUC .8 20 .6 44
JUC .8 20 .7 25
JUC .8 20 .5 91
JUC .8 20 .9 75
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