Hitachi CL2554AN, CL2854AN Schematic
No. 0105
CL2554AN
SERVICE MANUAL
MANUEL D’ENTRETIEN
CAUTION:
Data contained within this Service
Verbesserungen ändern.
WARTUNGSHANDBUCH
Before servicing this chassis, it is important that the service technician read
the “Safety Precautions” and “Product Safety Notices” in this service manual.
ATTENTION:
Avant d’effectuer l’entretien du châassis, le technicien doit lire les
«Précautions de sécurité» et les «Notices de sécurité du produit» présentés
dans le présent manuel.
VORSICHT:
Vor Öffnen des Gehäuses hat der Service-Ingenieur die „Sicherheitshinweise“
und „Hinweise zur Produktsicherheit“ in diesem Wartungshandbuch zu lesen.
CL2854AN
manual is subject to alteration for
improvement.
Les données fournies dans le
présent manuel d’entretien
peuvent faire l’objet de
modifications en vue de
perfectionner le produit.
Die in diesem Wartungshandbuch
enthaltenen Spezifikationen
können sich zwecks
December 1999
1 - Main features
1-1 Specifications
1-2 Channel table
1-3 ATSS sorting method
2 - Safety instruction
3 - Alignment instructions
3-1 Microcontroller configuration : Service mode
3-2 Microcontroller configuration : Option
3-3 TV set Alignment
4 - IC description
4-1 TDA936x TV signal processor - Teletext decoder with embedded m-Controller.
4-2 MSP3415D Multistandard Sound Processor
4-3 TDA894xJ Stereo Audio Amplifier
4-4 TDA835xJ Vertical Amplifier
4-4-1 TDA8357J
4-4-1 TDA8358J
4-5 TDA6107Q
4-6 24C08 8 Kbit EEPROM
4-7 STR - F6653
Service manual CL2554AN / CL2854AN
Contents
5 - Circuit description
5-1 Block diagram
5-2 IF
5-3 Source switching
5-4 m-Controller I/O pin configuration and function
5-5 Sound processing
5-6 Sound amplification
5-7 Vertical deflection
5-8 Power supply (STR F6653)
5-9 TV start-up, TV normal run and stand by mode operations
6 - Replacement parts list
- 1 -
1-1 Specifications
Service manual CL2554AN / CL2854AN
TV standard
Sound system
Power consumption
Sound Output Power
Speaker
Teletext system
Aerial input
Channel coverage
Tuning system
Visual screen size
Channel indication
Program Selection
Aux. terminal
Remote Control Unit
PAL - SECAM B/G D/K, PAL I/I, SECAM L/L’
NICAM B/G, I, D/K, L,
FM 2Carrier B/G, D/K
21” : 49 W approx.
28” : 75 W approx.
21” : 4.5W x 2 (at 60% mod, 10%THD)
28” : 7W x 2 (at 60% mod, 10%THD)
20”, 21” : 7W 8 ohm x2
25”, 28” : 12W 8 ohm x2
10 pages memory FASTEXT (FLOF or TOP)
75 ohm unbalanced
Off-air channels, S-cable channels and hyperband
frequency synthesiser tuning system
20” : 48 cm
21” : 51 cm
25” : 59 cm
28” : 66 cm
On Screen Display
100 programmes
EURO-SCART 1 : Audio / Video In and Out, R/G/B In, Slow and
Fast switching.
EURO-SCART 2 : Audio / Video In, SVHS In.
Audio-Video Jack on front of cabinet in common connection with
EURO-SCART 2.
Headphone jack (3.5 mm) on front of cabinet
R-40A01
21 Pin EURO-SCART 1 :
Pin Signal Description Matching value
1 Audio Output Right
2 Audio Input Right
3 Audio Output Left
0.5 Vrms, Impedance < 1 kW, ( RF 54% Mod )
0.5 Vrms, Impedance > 10 kW
0.5 Vrms, Impedance < 1 kW, ( RF 54% Mod )
4 Audio Earth
5 Blue Earth
6 Audio Input Left
7 Blue Input
0.5 Vrms, Impedance > 10 kW
0.7 Vpp ±0.1V, Impedance 75W
8 Slow Switching TV : 0 to 2V, AV 16/9 : 4.5 to 7V, AV 4/3 : 9.5 to 12V ,
Impedance > 10 kW
9 Green Earth
10 N.C.
11 Green Input
0.7 Vpp ± 0.1V, Impedance 75W
12 N.C.
13 Red Earth
- 2 -
14 Blanking Earth
15 Red Input
16 Fast Switching
0.7 Vpp ± 0.1V, Impedance 75W
0 to 0.4V : Logic “0”, 1 to 3V : Logic “1”, Impedance 75W
17 Video Out Earth
18 Video In Earth
19 Video Output
20 Video Input
1 Vpp ± 3dB, Impedance 75W
1 Vpp ± 3dB, Impedance 75W
21 Common Earth
21 Pin EURO-SCART 2 :
Pin Signal Description Matching value
1 N.C.
2 Audio Input Right
0.5 Vrms, Impedance > 10 kW
3 N.C.
4 Audio Earth
5 Earth
6 Audio Input Left
0.5 Vrms, Impedance > 10 kW
7 N.C.
8 N.C.
9 N.C.
10 N.C.
11 N.C.
12 N.C.
13 Earth
14 Earth
15 Chroma Input
± 3dB for a luminance signal of 1 Vpp
16 N.C.
17 Earth
18 Video In Earth
19 N.C.
20 Video Input, Y In.
1 Vpp ± 3dB, Impedance 75W
21 Common Earth
Service manual CL2554AN / CL2854AN
- 3 -
Service manual CL2554AN / CL2854AN
1-2 Channel table
FREQUENCY TABLE
CH EUROPE CCIR FRANCE GB(IRELAND) EAST OIRT
C01
C02
C03
C04
C05
C06
C07
C08
C09
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
C24
C25
C26
C27
C28
C29
C30
C31
C32
C33
C34
C35
C36
C37
C38
C39
C40
C41
C42
C43
C44
C45
46.25 47.75 (L') 45.75 49.75
48.25 55.75 (L') 53.75 59.25
55.25 60.5 (L') 61.75 77.25
62.25 63.75 (L') 175.25 85.25
175.25 176.00 183.25 93.25
182.25 184.00 191.25 175.25
189.25 192.00 199.25 183.25
196.25 200.00 207.25 191.25
203.25 208.00 215.25 199.25
210.25 216.00 223.25 207.25
217.25 189.25 (LUX) 231.25 215.25
224.25 69.25 (L') 239.25 223.25
53.75 76.25 (L') 247.25 -
- 83.25 (L') 49.75 -
82.25 90.25 57.75 -
- 97.25 65.75 -
183.75 - 77.75 -
192.25 - 85.75 -
201.25 - - -
- - - -
471.25 471.25 471.25 471.25
479.25 479.25 479.25 479.25
487.25 487.25 487.25 487.25
495.25 495.25 495.25 495.25
503.25 503.25 503.25 503.25
511.25 511.25 511.25 511.25
519.25 519.25 519.25 519.25
527.25 527.25 527.25 527.25
535.25 535.25 535.25 535.25
543.25 543.25 543.25 543.25
551.25 551.25 551.25 551.25
559.25 559.25 559.25 559.25
567.25 567.25 567.25 567.25
575.25 575.25 575.25 575.25
583.25 583.25 583.25 583.25
591.25 591.25 591.25 591.25
599.25 599.25 599.25 599.25
607.25 607.25 607.25 607.25
615.25 615.25 615.25 615.25
623.25 623.25 623.25 623.25
631.25 631.25 631.25 631.25
639.25 639.25 639.25 639.25
647.25 647.25 647.25 647.25
655.25 655.25 655.25 655.25
663.25 663.25 663.25 663.25
- 4 -
Service manual CL2554AN / CL2854AN
C46
C47
C48
C49
C50
C51
C52
C53
C54
C55
C56
C57
C58
C59
C60
C61
C62
C63
C64
C65
C66
C67
C68
C69
C70
C71
C72
C73
C74
C75
C76
C77
S01
S02
S03
S04
S05
S06
S07
S08
S09
S10
S11
S12
S13
S14
S15
S16
S17
S18
671.25 671.25 671.25 671.25
679.25 679.25 679.25 679.25
687.25 687.25 687.25 687.25
695.25 695.25 695.25 695.25
703.25 703.25 703.25 703.25
711.25 711.25 711.25 711.25
719.25 719.25 719.25 719.25
727.25 727.25 727.25 727.25
735.25 735.25 735.25 735.25
743.25 743.25 743.25 743.25
751.25 751.25 751.25 751.25
759.25 759.25 759.25 759.25
767.25 767.25 767.25 767.25
775.25 775.25 775.25 775.25
783.25 783.25 783.25 783.25
791.25 791.25 791.25 791.25
799.25 799.25 799.25 799.25
807.25 807.25 807.25 807.25
815.25 815.25 815.25 815.25
823.25 823.25 823.25 823.25
831.25 831.25 831.25 831.25
839.25 839.25 839.25 839.25
847.25 847.25 847.25 847.25
855.25 855.25 855.25 855.25
863.25 863.25 863.25 863.25
69.25 - - -
76.25 - - -
83.25 - - -
90.25 - - -
97.25 - - -
59.25 - - -
93.25 - - -
105.25 104.75 103.25 105.25
112.25 116.75 111.25 112.25
119.25 128.75 119.25 119.25
126.25 140.75 127.25 126.25
133.25 152.75 135.25 133.25
140.25 164.75 143.25 140.25
147.25 176.75 151.25 147.25
154.25 188.75 159.25 154.25
161.25 200.75 167.25 161.25
168.25 212.75 - 168.25
231.25 224.75 - 231.25
238.25 236.75 - 238.25
245.25 248.75 255.25 245.25
252.25 260.75 263.25 252.25
259.25 272.75 271.25 259.25
266.25 284.75 279.25 266.25
273.25 296.75 287.25 273.25
280.25 136.00 295.25 280.25
- 5 -
Service manual CL2554AN / CL2854AN
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S33
S34
S35
S36
S37
S38
S39
S40
S41
287.25 160.00 303.25 287.25
294.25 - - 294.25
303.25 303.25 - 303.25
311.25 311.25 311.25 311.25
319.25 319.25 319.25 319.25
327.25 327.25 327.25 327.25
335.25 335.25 335.25 335.25
343.25 343.25 343.25 343.25
351.25 351.25 351.25 351.25
359.25 359.25 359.25 359.25
367.25 367.25 367.25 367.25
375.25 375.25 375.25 375.25
383.25 383.25 383.25 383.25
391.25 391.25 391.25 391.25
399.25 399.25 399.25 399.25
407.25 407.25 407.25 407.25
415.25 415.25 415.25 415.25
423.25 423.25 423.25 423.25
431.25 431.25 431.25 431.25
439.25 439.25 439.25 439.25
447.25 447.25 447.25 447.25
455.25 455.25 455.25 455.25
463.25 463.25 463.25 463.25
- 6 -
Service manual CL2554AN / CL2854AN
1-3 ATSS sorting method
The TV set sweeps all the TV bands from beginning of VHF to end of UHF. The TV
controlling software for each program checks if a VPS CNI code is transmitted. If no VPS CNI
code is found, the system check if a CNI code is transmitted in the teletext lines ( Packet 8/30
format 1 ). If such a code ( VPS or teletext ) is found and if this code is in the ATSS list, the
program is automatically named.
The programs found are then sorted in 4 groups :
Group I : It contains all the programs from the selected country and named by the TV
controlling software. Within this group the sorting order is fixed by the ATSS list.
Group II : It contains all the programs with a strong signal strength which are not listed in
group I.
Group III : It contains all the programs with a weak signal strength which are not listed in
group I.
Group IV : If two or more programs with the same code are found, only the strongest ( or if
they have the same level the one with the lowest frequency) is listed in group I, II or III. The
others are listed in group IV. Note : If two programs with the same name but a different code
are found these two programs are listed in group I, II or III ( e.g. Regional program SW3 in
Germany ).
The sorting order within group II, III, and IV is based on the channel frequency. The program
with the lowest frequency is allocated the first rank in its group, and so forth until the last
program of the group which has the highest frequency.
Program
number
1
2 Group I
...
n
n+1
... Group II
m
m+1
... Group III
p
p+1
... Group IV
q
Group Skip
4
Program
Group Skip
number
1
... Group II
m
m+1
... Group III
p
p+1
... Group IV
q
q+1 not used
...
99
0
4
4
q+1 not used
...
99
4
Special case : Country selection = Others
0
Special case : France
If France is selected the TV controlling software sweeps the whole TV bands firstly with France
system selected ( positive video modulation) and secondly with Europe system selected ( negative
video modulation).
- 7 -
Service manual CL2554AN / CL2854AN
Special case : Switzerland
If Switzerland is selected the TV controlling software sweeps the whole TV bands firstly with
Europe system selected (negative video modulation) and secondly with France system selected (
positive video modulation).
Special case : GB
Note for satellite receiver users : Before starting ATSS turn On your satellite receiver and tune “
SKY NEWS “.
If GB is selected the TV controlling software seeks for programs only in UHF ( C21 to C70). The
sorting order is :
1 - BBC1
2 - BBC2
3 - ITV
4 - CH4
5 - CH5
6 - NEWS
If two or more “ identical “programs ( same name but different code e.g. BBC1 and BBC1
Scotland ) are found the following programs in the list will be shifted up. (1 - BBC1, 2 - BBC1, 3
- BBC2, 4 - ITV, 5 - CH4, 6 - CH5, 7 - NEWS, ..)
If one of the program above is not found, the associated program number remains empty
(freq.=467.25 Mhz - Skip selected - no name - system=GB).
example A : 1 - BBC1, 2 - BBC2, 3 - ITV, 4 - -----, 5 - CH5, 6 - NEWS, ...
example B ( if 2 BBC1 found ) : 1 - BBC1, 2 - BBC1, 3 - BBC2, 4 - ITV, 5 - -----, 6 - CH5, 7 NEWS, ...
- 8 -
Service manual CL2554AN / CL2854AN
2 - Safety instruction
WARNING: Only competent service personnel may carry out work involving the testing or repair
of this equipment.
X-RAY RADIATION PRECAUTION
1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To avoid
such hazards, the high voltage must not exceed the specified limit. The nominal value of the
high voltage of this receiver is 25-26 KV (20”-21”) or 26 KV (25” - 28”) at max beam
current. The high voltage must not, under any circumstances, exceed 27.5 KV (20”), 29KV
(21”), 29.5 KV (25") or 30 KV (28"). Each time a receiver requires servicing, the high
voltage should be checked. It is important to use an accurate and reliable high voltage meter.
2. The only source of X-RAY Radiation in this TV receiver is the picture tube. For continued
X-RAY RADIATION protection, the replacement tube must be exactly the same type tube as
specified in the parts list.
SAFETY PRECAUTION
1. Potentials of high voltage are present when this receiver is operating. Operation of the
receiver outside the cabinet or with the back board removed involves a shock hazard from the
receiver.
1) Servicing should not be attempted by anyone who is not thoroughly familiar with the
precautions necessary when working on high voltage equipment.
2) Discharge the high potential of the picture tube before handling the tube. The picture tube
is highly evacuated and if broken, glass fragments will be violently expelled.
2. If any Fuse in this TV receiver is blown, replace it with the FUSE specified in the
Replacement Parts List.
3. When replacing a high wattage resistor (oxide metal film resistor) in circuit board, keep the
resistor 10 mm away from circuit board.
4. Keep wires away from high voltage or high temperature components.
5. This receiver must operate under AC 230 volts, 5O Hz. NEVER connect to DC supply or
any other power or frequency.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this equipment 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 replacement
components rated for higher voltage, wattage, etc. Replacement parts which have these special
safety characteristics are identified in this manual and its supplements, electrical components
having such features are identified by designated symbol on the parts list. Before replacing any of
these components, read the parts list in this manual carefully. The use of substitutes replacement
parts which do not have the same safety characteristics as specified in the parts list may create XRAY Radiation.
- 9 -
Service manual CL2554AN / CL2854AN
3 - Alignment instructions
3-1 Microcontroller configuration : Service mode
To switch the TV set into service mode please see instruction below.
1 - Select pr. number 91
2 - Adjust sharpness to minimum and exit all menu.
3 - Quickly press the key sequence : RED - GREEN - menu
To exit SERVICE menu press menu key or Std By key.
In Service Mode press “OK” to stop the microcontroller i.e. the I2C bus is free and the set can be
controlled by external equipment. Press “OK” again to allow the microcontroller to control the set
again
3-2 Microcontroller configuration : Option
Option Tuner maker Cut off / Video Amp.
0 DAEWOO / SAMSUNG 140V / 92V
1 DAEWOO / SAMSUNG
2 SIEL 140V / 92V
3-3 TV set Alignment
3-3-1 - G2 alignment
- TV in AV mode without video signal Þ Black screen.
- TV pre-set with WP Red, WP Green and WP Blue equal to 32.
- TV pre-set with Black R, Black G equal to 8.
- Set TV in NORMAL I mode
- Adjust screen volume ( on FBT ) such that the highest cathode cut-off voltage measured on CRT
board, is V cut off ± 5V.
Screen size V cut-off
20” & 21” 125 V
25” & 28” 140 V
3-3-2 - White balance
- Select a dark picture and adjust Black G and Black R to the desired colour temperature.
- Select a bright picture and adjust WP Red, WP Green, WP Blue to the desired colour
temperature.
3-3-3 - Focus
- Adjust the Focus volume ( on FBT ) to have the best resolution on screen.
3-3-4 - Vertical geometry
- Adjust the Vertical Amplitude, Shift, S-
Correction and Slope to compensate for
vertical distortion.
- 10 -
Service manual CL2554AN / CL2854AN
3-3-5 - Horizontal picture centring
- Adjust H Shift to have the picture in the centre of the screen.
3-3-6 - East / West correction
- Adjust the H Parall, H Bow, H Width, EW Parabo, Up Corner, Dw Corner, EW trapez to
compensate for geometrical distortion.
H. Parall
H. Bow
H.Width
EW.Parabo
Up Corner
Dw Corner
- 11 -
Service manual CL2554AN / CL2854AN
EW Trapez
3-3-7 - AGC
- Adjust the antenna signal level at 68 dBmV± 2 (UHF - CH25)
- Set RF AGC to 0.
- Increase RF AGC level and stop when the level on pin 6 of TDA936x goes below 2.5 Vdc
- 12 -
Service manual CL2554AN / CL2854AN
4 - IC description
4-1 TDA936x TV signal processor - Teletext decoder with embedded m-Controller.
TV-signal Processor
l Multistandard vision IF circuit with alignment-free PLL demodulator
l Internal (switchable) time-constant for the IF-AGC circuit
l Source selection between 'Internal' CVBS and external CVBS or Y/C signals
l Integrated chrominance trap circuit
l Integrated luminance delay line with adjustable delay time
l Asymmetrical ‘delay line type’ peaking in the luminance channel
l Black stretching for non-standard luminance signals
l Integrated chroma band-pass filter with switchable centre frequency
l Only one reference (12 MHz) crystal required for the m-Controller, Teletext and the colour
decoder
l PAL / NTSC or multistandard colour decoder with automatic search system
l Internal base-band delay line
l RGB control circuit with 'Continuous Cathode Calibration', white point and black level off
set adjustment so that the colour temperature of the dark and the bright parts of the screen
can be chosen independently.
l Linear RGB or YUV input with fast blanking for external RGB/YUV sources. The
Text/OSD signals are internally supplied from the m-Controller/Teletext decoder
l Contrast reduction possibility during mixed-mode of OSD and Text signals
l Horizontal synchronisation with two control loops and alignment-free horizontal oscillator
l Vertical count-down circuit
l Vertical driver optimised for DC-coupled vertical output stages
l Horizontal and vertical geometry processing
l Horizontal and vertical zoom function for 16 : 9 applications
l Horizontal parallelogram and bow correction for large screen picture tubes
µµ-Controller
l 80C51 m-controller core standard instruction set and timing
l 1ms machine cycle
l 32 - 128Kx8-bit late programmed ROM
l 3 - 12Kx8-bit Auxiliary RAM (shared with Display and Acquisition)
l Interrupt controller for individual enable/disable with two level priority
l Two 16-bit Timer/Counter registers
l WatchDog timer
l Auxiliary RAM page pointer
l 16-bit Data pointer
l IDLE and Power Down (PD) mode
l 14 bits PWM for Voltage Synthesis Tuning
l 8-bit A/D converter
l 4 pins which can be programmed as general I/0 pin, ADC input or PWM (6-bit) output
Data Capture
l Text memory 10 pages
l Inventory of transmitted Teletext pages stored in the Transmitted Page Table (TPT) and
Subtitle Page Table (SPT)
- 13 -
Service manual CL2554AN / CL2854AN
l Data Capture for US Closed Caption
l 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
l Automatic selection between 625 WST/VPS on line 16 of VBI
l Real-time capture and decoding for WST Teletext in Hardware, to enable optimised m-
processor throughput
l Automatic detection of FASTEXT transmission
l Real-time packet 26 engine in Hardware for processing accented, G2 and G3 characters
l Signal quality detector for video and WST/VPS data types
l Comprehensive teletext language coverage
l Full Field and Vertical Blanking Interval (VBI) data capture of WST data
Display
l Teletext and Enhanced OSD modes
l Features of lever 1.5 WST and US Close Caption
l Serial and Parallel Display Attributes
l Single/Double/Quadruple Width and Height for characters
l Scrolling of display region
l Variable flash rate controlled by software
l Enhanced display features including overlining, underlining and italics
l Soft colours using CLUT with 4096 colour palette
l Globally selectable scan lines per row (9/10/13/16) and character matrix [12x10, 12xl3,
12x16 (VxH)]
l Fringing (Shadow) selectable from N-S-E-W direction
l Fringe colour selectable
l Meshing of defined area
l Contrast reduction of defined area
l Cursor
l Special Graphics Characters with two planes, allowing four colours per character
l 32 software re-definable On-Screen display characters
l 4 WST Character sets (GO/G2) in single device (e.g. Latin, Cyrillic, Greek, Arabic)
l G1 Mosaic graphics, Limited G3 Line drawing characters
l WST Character sets and Closed Caption Character set in single device
Data Capture
The Data Capture section takes in the analogue Composite Vidéo and Blanking Signal
(CVBS), and from this extracts the required data, which is then decoded and stored in memory.
The extraction of the data is performed in the digital domain. The first stage is to convert the
analogue CVBS signal into a digital form. This is done using an ADC sampling at 12MHz.
The data and clock recovery is then performed by a Multi-Rate Video Input Processor
(MuIVIP). From the recovered data and clock the following data types are extracted WST
Teletext (625/525), Closed Caption, VPS, WSS. The extracted data is stored in either memory
(DRAM) via the Memory Interface or in SFR locations.
Data Capture Features
- Video Signal Quality detector
- 14 -
Service manual CL2554AN / CL2854AN
- Data Capture for 625 line WST
- Data Capture for 525 line WST
- Data Capture for US Closed Caption
- Data Capture for VPS data (PDC system A)
- Data Capture for Wide Screen Signalling (WSS) bit decoding
- Automatic selection between 525 WST/625WST
- Automatic selection between 625WST/VPS on line 16 of VBI
- Real-time capture and decoding for WST Teletext in Hardware, to enable optimised
microprocessor throughput
- 10 pages stored On-Chip
- Inventory of transmitted Teletext pages stored in the Transmitted Page Table (TPT) and
Subtitle Page Table (SPT)
- Automatic detection of FASTEXT transmission
- Real-time packet 26 engine in Hardware for processing accented, G2 and G3 characters
- Signal quality detector for WST/VPS data types
- Comprehensive Teletext language coverage
- Full Field and Vertical Blanking Interval (VBI) data capture of WST data
- 15 -
Service manual CL2554AN / CL2854AN
- 16 -
Service manual CL2554AN / CL2854AN
TV processor version and µµ-Controller capacity
IC version TDA9365 Nx / 3 TDA9367 Nx / 3
TV range 110° 90°
QSS sound IF amplifier with
separated input and AGC circuit
PAL decoder
SECAM decoder
NTSC decoder
Horizontal geometry (E-W)
Horizontal and vertical zoom
ROM size 64 k 64 k
RAM size 2 k 2 k
Teletext 10 pages 10 pages
IC marking and version
üü üü
üü üü
üü üü
üü üü
üü
üü
IC marking
( line 3 )
DW9365/N1/3-BE x
( note : x is the
software version )
DW9365/N1/3-BDx
( note : x is the
software version )
PINNING
OSD languages ATSS country Text
English, French,
German, Italian,
Spanish, Dutch,
Danish, Finnish,
Norwegian, Swedish
GB, France,
Germany,
Belgium, Spain,
Italy,
Switzerland,
Pan-European
( West )
Austria,
Denmark,
Finland,
Netherlands,
Norway,
Sweden, Ireland,
Others
English, Polish,
Russian, Hungarian,
Czech, Slovakian,
Poland,
Hungary, Czech
rep., Others
Pan-European,
East, Cyrillic,
Greek.
Romanian, Greek
SYMBOL PIN DESCRIPTION
n.u. 1 Port 1.3 Not used.
SCL 2 I2C bus clock line
SDA 3 I2C Data line
SECAM L’ out 4 Port 2.0 : High when L’ selected (PushPull )
OCP 5 Port 3.0 : Over Current Protection
RF AGC in 6 ADC 1 : For factory use only ( High impedance )
Key-in 7 ADC 2 : local key input ( High impedance )
S/SW 8 ADC 3 : Scart Slow switching input ( See XXX)
VssC/P 9
digital ground for m-controller core and peripheral
LED 1 10 port 0.5 ( 8mA current sinking capability )
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Service manual CL2554AN / CL2854AN
LED 2 11 port 0.6 ( 8mA current sinking capability )
VSSA 12 analogue ground of teletext decoder and digital ground of TV
processor
SEC PLL 13 SECAM PLL decoupling
VP2 14 2nd supply voltage TV-processor
DECDIG 15 decoupling digital supply of TV-processor
PH2LF 16 phase-2 filter
PH1LF 17 phase-1 filter
GND3 18 ground 3 for TV-processor
DECBG 19 bandgap decoupling
AVL/EWD 20 East / West drive output
VDRB 21 vertical drive B output
VDRA 22 vertical drive A output
IFIN1 23 IF input 1
IFIN2 24 IF input 2
IREF 25 reference current input
VSC 26 vertical sawtooth capacitor
TUNERAGC 27 tuner AGC output
SIFIN1 28 SIF input 1
SIFIN2 29 SIF input 2
GND2 30 ground 2 for TV processor
SIF AGC 31 AGC sound IF
REF0 32 n.u.
HOUT 33 horizontal output
FBISO 34 flyback input / sandcastle output
QSS out 35 QSS intercarrier output
EHT0 36 EHT/Overvoltage protection
PLLIF 37 IF PLL loop filter
IFVO 38 IF video output
VP1 39 main supply voltage TV-processor
CVBSINT 40 internal CVBS input
GND1 41 ground 1 for TV-processor
CVBS/Y 42 external CVBS/Y input
CHROMA 43 chrominance input (SVHS)
AMOUT 44 n.u.
INSSW2 45 2nd RGB insertion input
R2IN 46 2nd R input
G2IN 47 2nd G input
B2IN 48 2nd B input
BCLIN 49 beam current limiter input
BLKIN 50 black current input
R0 51 RED Output
G0 52 GREEN Output
B0 53 BLUE Output
VDDA 54 analogue supply of Teletext decoder and digital supply of TV-
Processor (3.3V)
VPE 55 OTP programming supply
VDDC 56 digital supply to core (3.3V)
OSCGND 57 oscillator ground supply
XTALIN 58 crystal oscillator input
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Service manual CL2554AN / CL2854AN
XTALOUT 59 crystal oscillator output
RESET 60 reset
VDDP 61 digital supply to periphery (3.3V)
Audio Mute 62 Port 1.0 : Audio mute output (PushPull )
Power 63 Port 1.1 : Power output (PushPull )
IR in 64 Interrupt input 0 : R/C Infrared input
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Service manual CL2554AN / CL2854AN
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Service manual CL2554AN / CL2854AN
4-2 MSP3415D Multistandard Sound Processor
The MSP 3415D is designed as a single-chip Multistandard Sound Processor for applications
in analogue and digital TV sets, video recorders, and PC cards.
MSP 3415D features
- sound IF input
- No external filters required
- Stereo baseband input via integrated AD converters
- Two pairs of DA converters
- Two carrier FM or NICAM processing
- AVC : Automatic Volume Correction
- Bass, treble, volume processing
- Full SCART in/out matrix without restrictions
- Improved FM-identification
- Demodulator short programming
- Auto-detection for terrestrial TV - sound standards
- Precise bit-error rate indication
- Automatic switching from NICAM to FM/AM or vice versa
- Improved NICAM synchronisation algorithm
- Improved carrier mute algorithm
- Improved AM-demodulation
- Reduction of necessary controlling
- Less external components
Basic Features of the MSP 3415D
Demodulator and NICAM Decoder Section
The MSP 3415D is designed to simultaneously perform digital demodulation and decoding of
NICAM-coded TV stereo sound, as well as demodulation of FM or AM mono TV sound.
Alternatively, two carrier FM systems according to the German terrestrial specs can be
processed with the MSP 3415D.
The MSP 3415D facilitates profitable multistandard capability, offering the following
advantages:
- Automatic Gain Control (AGC) for analogue input: input range: 0.10 - 3 Vpp
- integrated A/D converter for sound-IF input
- all demodulation and filtering is performed on chip and is individually programmable
- easy realisation of all digital NICAM standards (B/G, I, L and D/K)
- FM-demodulation of all terrestrial standards (include identification decoding)
- no external filter hardware is required
- only one crystal clock (18.432 MHz) is necessary
- high deviation FM-mono mode (max. deviation: approx. ±360 kHz)
DSP-Section (Audio Baseband Processing)
- flexible selection of audio sources to be processed
- performance of terrestrial de-emphasise systems (FM, NICAM)
- digitally performed FM-identification decoding and de-matrixing
- digital baseband processing: volume, bass, treble
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