Sharp 37GT-28FP User manual

1
37GT-28FP
SHARP CORPORATION
CONTENTS
PAL / SECAM SYSTEM COLOUR TELEVISION
S0037GT28FP00
SQUAD-T CHASSIS
SERVICE MANUAL
In the interests of user safety (required by safety
regulationsinsomecountries)thesetshouldrestored
to its original condition and only parts identical to
those specified should be used.
MODEL 37GT-28FP
Issued:14th March 2002
This document has been published to
be used for after sales service only.
ELECTRICAL SPECIFICATION.......................3
IMPORTANT SERVICE NOTES.......................4
SERVICE ADJUSTMENTS...............................5
PRINTED WIRING BOARDS..........................12
COMPONENT LOCATION TABLES................14
ICs ADDITIONAL INFORMATION..................17
○○
SCHEMATIC DIAGRAM, WAVE FORMS.......24
BLOCK DIAGRAM..........................................30
TROUBLESHOOTING TABLES......................32
PART LIST.......................................................37
PACKING OF THE SET...................................42
REMOTE CONTROL DESCRIPTION..............43

2
37GT-28FP
Use this page to keep any special servicing information as Technical Report (Bulletin), Technical Information, etc.
If only part number changes are required, just change part number directly the part number in the Parts Listing Section.
If you need more information, please refer to the Technical Report (Bulletin).
SERVICE MANUAL UPDATE LOG SHEET
Part No.
Technical Report No.
Technical Bulletin No. Cause / Solution Page No. Application
Data /Serial No.

3
37GT-28FP
ELECTRICAL SPECIFICATIONS
•Power Input .......................220V-240 Volts AC 50Hz
•Power Consumption
•Audio Power Output Rating .....................2W (MPO)
Speaker............................32Ω2W, 8cm Round, 1pc
Normal Operating....................................30W
(Method IEC60107)
Stand-by Operating................................7.5W
•White Level
Setbrightnesscontroltogettotalpicturetubecathodecurrentof600uAundernosignalcondition.Maximum necessary
correction of each picture tube cathode current to get 8950 degree K-20 MPCD screen temperature should not
exceed 15% of its original value.
X=0.290 Y=0.284
Convergence.........................Self Converging System
Focus....................................Bi-Potencial Electrostatic
Sweep Deflection...........................................Magnetic
•Sound Carrier Trap
L’..........................................................40.4MHz
L...........................................................32.4MHz
B/G.......................................................33.4MHz
•Picture Intermediate Frecuencies
L’.........................................................33.9MHz
L, B/G..................................................38.9MHz
•Adjacent Sound Carrier Trap
L’..........................................................32.4MHz
L, B/G...................................................40.4MHz
•Adjacent Picture Carrier Trap
L’..........................................................41.9MHz
L...........................................................30.9MHz
B/G.......................................................30.9MHz
•Aerial Input Impedance
VHF/UHF...........................75 ohm Unbalanced
•Tuning Ranges
CATV Special Channels
L/L’..........................55.75MHz thru 855.25 MHz
B/G.........................48.25MHz thru 855.25 MHz
WARNING
The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug
and power receptacle, when servicing this chassis.
To prevent electric shock, do not remove cover. No user-serviceable parts inside. Refer servicing to
qualified service personnel.
Specifications are subject to change without prior notice.

4
37GT-28FP
Only qualified service personnel are allowed to carry out mintenance and repair of this receiver.
Itis important thatthe static chargeisremovedfromthehigh voltage system whencarryingoutworkon
thereceiver. This can be achieved by connecting a 10K resistor (with a suitably insulated lead) from the
CRT cavity connectortothe CRTgroundtag.This must becarriedout with theACsupply disconnected
from the receiver.
Note the following:
•The CRT in this receiver employs Integral Implosion Protection.
•If the CRThas to be changed it MUST be replaced with the correct type for continued safe
working.
•DO NOT lift the CRT by its neck.
•When handing the CRT, ensure that shatterproof goggles are worn.
•Ensure that the CRT is discharge before handling.
X-RAY
Thisreceiverisdesignedtokeepanyx-rayemissiontoanabsoluteminimum.Somefaultconditions and
servicing procedures may produce potentially hazardous x-ray radiation levels. This is a problem when
in close proximity to the receiver for long periods of time. To reduce any risks associated with this,
please observe the following precautions:
1. When undertaking any servicing on this chassis, DO NOT increase the EHT to more than 30KV,
at a instantaneous beam current of 300µΑ).
2. Ensure that during normal operation the EHT does not exceed 27.5KV(at a beam current of
800µΑ). Thislevelhasbeenpre-setinthefactory.Alwayscheckthatthislevelhasnotbeenexceeded
after carrying out any repair on the receiver.
3. DO NOT replace the CRT with any other type than that specified in the parts listing as this may
cause excessive x-ray radiation.
BEFORE RETURNING THE RECEIVER TO THE CUSTOMER
Inadditiontotheabovechecks,thefollowingshouldalsobecarriedoutbefore returningthereceiver to
the customer.
1.Inspectalltheleadstoensurethattheyaredressedcorrectlyandthattheyarenotobstructedorpinched
by any other parts.
2.Ensurethatallprotectivedevicesareingoodcondition.Thesewillincludenonmetalliccontrolknobs,
insulating fish papers, cabinets backs, compartment covers or shields, mechanical insulators, etc.
IMPORTANT SERVICING NOTES
SERVICING OF HIGH VOLTAGE SYSTEM AND CRT

5
37GT-28FP
Indicates operative Service Mode
Auto Gain Control
Auto Frecquency Control Fine PAL B/G
Auto Frecquency Control Coarse SECAM B/G, L
Auto Frecquency Control Fine L’
Auto Frecquency Control Coarse L’
HorizontalShift
Vertical Shift
Verical Amplitud
Red Gain
Green Gain
Blue Gain
Red Cut Off
Green Cut Off
NVM Data Change
SERVICE ADJUSTMENT
Service Mode Function
XXXX
XX
XX
POS (Green)
VALUE (Red)
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
m.
n.
-SERV-
AGC
AFT F
AFT C
AFT FL
AFT CL
H-SHFT
V-SHFT
V-AMPL
GAIN R
GAIN G
GAIN B
CUT R
CUT G
NVM
Displayed
on screen Hexadecimal /
Decim. Range Function
00∼ 3F
02∼ FE
00∼ 0F
02∼ FE
00∼ 0F
00∼ FF
00∼ 3F
00∼ 0F
00∼ 3F
00∼ 3F
00∼ 3F
00∼ 3F
00∼ 3F
00∼ 3F
00∼ FF
1. Turn the receiver on and ensure that it is tuned into a test pattern.
2. Turn the receiver off using the mains switch.
3. Press the volume down and channel up buttons together. See Fig. 1.
4. Continue pressing the volume down and channel up buttons while turning
the mains on using the mains switch. See Fig. 1.
5. Keep pressing the volume down and channel up buttons until the picture appears.
6. Release the two buttons and the receiver is now in the service mode.
To move between the various service mode functions, use the channel up and down buttons.
Use the volume buttons to change the data to the desired value.
The data will be stored automatically when exiting the service mode.
To exit the service mode, press the stand-by button on the remote control or turn the receiver off
with the mains switch.
On Screen
Display
(Blue)
}
}
3
4
CH
All required adjustments for servicing this TV set, may be done in «Service Mode», excepting G2 and FOCUS.
How to access the Service Mode
Fig. 1

6
37GT-28FP
Adjustment of Data within the NVM memory
To access the NVM memory, press the channel up buttonontheremote control until the NVM setting is reached. Note that
the NVM address is shown in green and the NVM value is shown in red. Each of the NVM values are stored as a
hexadecimalcode,each code comprises of two hexadecimal numbers. Each of these numbers will break downintoafour
bit binary code as in the example below.
Hex code A 5
Binary code 1010 0101
Button on remote to toggle Bit 7654 3210
Inthe example given above, the hexadecimal code is A5, the binary equivalentis10100101.The remote control button to
toggle each bit on or off (1 or a 0) is shown below the binary code. Therefore to change this to A6, remote control buttons
1 then 0 would have to be pressed.
Note: In the tables below appear b0, b1, b2,.........,b7, whose indicate the bit number:
b0 is the Least Significant Bit (LSB).
b7 is the Most Significant Bit (MSB).
VALUE DESCRIPTION ADDRESS
44 RESERVED
b7: x
b6: CO_BLK
b5: SVHS
b4: FRAME_BLK
b3: BLACK_ST_REF
b2: S_STD2
b1: S_STD1
b0: QSS
0F
38 RESERVED
b7: BLACK_ST
b6: COR
b5: CK_ON
b6: COR
b5: CK_ON
b4: VID_ST2
b3: VID_ST1
b2: CK_1
b1: CK_2
b0: CK_3
10
A5 SIGNATURE VALUE 11
32 TEMPERATURE RED 12
32 TEMPERATURE GREEN 13
32 TEMPERATURE BLUE 14
26 VERTICAL SHIFT 15
32 RED CUTOFF 16
32 GREEN CUTOFF 17
1F HORIZONTAL SHIFT 18
37 VERTICAL AMPLITUDE 19
08 LUMA DELAY
b6-b5:AUDIO OUT
b4-b5: 00
b3: LUMA DELAY SHIFT
b1-b2:00
b0: V OUT INHIBITION
1 A
VALUE DESCRIPTION ADDRESS
32 TEMPERATURE RED 00
32 TEMPERATURE GREEN 01
32 TEMPERATURE BLUE 02
26 VERTICAL SHIFT 50HZ 03
32 RED CUTOFF 04
32 GREEN CUTOFF 05
1F HORIZONTAL SHIFT 50HZ 06
37 VERTICAL AMPLITUDE 07
08 LUMA DELAY
b6-b5:AUDIO OUT
b4-b5: 00
b3: LUMA DELAY SHIFT
b1-b2:00
b0: V OUT INHIBITION
08
2C CAG ADJUSTEMENT VALUE 09
63 TV OPTIONS
b7: ENGLISH OSD
b6: AUTOINSTALLATION FIRST
OPTION
b5: CHILD LOCK ENABLED
b4: X
b3: UHF BAND ONLY
b2: BASIC HOTEL MODE
b1: AV FRONT ENABLED
b0: FP VERSION
0A
3A AFT COARSE FOR B/G AND L'
SYSTEMS 0B
38 AFT FINE FOR B/G AND L
SYSTEMS 0C
92 AFT FINE FOR L' SYSTEMS 0D
FF VOLUME LIMIT (MAXIMUM) 0E
NVM List Description

7
37GT-28FP
VALUE DESCRIPTION ADDRESS
2C CAG ADJUSTEMENT VALUE 1B
63 TV OPTIONS
b7:
ENGLISH OSD
b6: AUTOINSTALLATION FIRST
OPTION
b5: CHILD LOCK ENABLED
b4: X
b3:
UHF BAND ONLY
b2:
BASIC HOTEL MODE
b1: AV FRONT ENABLED
b0: FP VERSION
1C
3A AFT COARSE FOR B/G AND L'
SYSTEMS 1D
38 AFT FINE FOR B/G AND L
SYSTEMS 1E
92 AFT FINE FOR L' SYSTEMS 1F
FF VOLUME LIMIT (MAXIMUM) 20
44 RESERVED
b7: X
b6: CO_BLK
b5: SVHS
b4: FRAME_BLK
b3: BLACK_ST_REF
b2: S_STD2
b1: S_STD1
b0: QSS
21
38 RESERVED
b7: BLACK_ST
b6: COR
b5: CK_ON
b6: COR
b5: CK_ON
b4: VID_ST2
b3: VID_ST1
b2: CK_1
b1: CK_2
b0: CK_3
22
A5 SIGNATURE VALUE 23
32 TEMPERATURE RED 24
32 TEMPERATURE GREEN 25
32 TEMPERATURE BLUE 26
26 VERTICAL SHIFT 27
32 RED CUTOFF 28
32 GREEN CUTOFF 29
1F HORIZONTAL SHIFT 2 A
37 VERTICAL AMPLITUDE 2B
08 LUMA DELAY
b6-b5:AUDIO OUT
b4-b5: 00
b3: LUMA DELAY SHIFT
b1-b2:00
b0: V OUT INHIBITION
2C
2C CAG ADJUSTEMENT VALUE 2D
63 TV OPTIONS
b7:
ENGLISH OSD
b6: AUTOINSTALLATION FIRST
OPTION
b5: CHILD LOCK ENABLED
b4: X
b3:
UHF BAND ONLY
b2:
BASIC HOTEL MODE
b1: AV FRONT ENABLED
b0: FP VERSION
2E
3A AFT COARSE FOR B/G AND L'
SYSTEMS 2F
VALUE DESCRIPTION ADDRESS
38 AFT FINE FOR B/G AND L
SYSTEMS 30
92 AFT FINE FOR L' SYSTEMS 31
FF VOLUME LIMIT (MAXIMUM) 32
44 RESERVED
b7: X
b6: CO_BLK
b5: SVHS
b4: FRAME_BLK
b3: BLACK_ST_REF
b2: S_STD2
b1: S_STD1
b0: QSS
33
38 RESERVED
b7: BLACK_ST
b6: COR
b5: CK_ON
b6: COR
b5: CK_ON
b4: VID_ST2
b3: VID_ST1
b2: CK_1
b1: CK_2
b0: CK_3
34
A5 SIGNATURE VALUE 35
A5 SIGNATURE VALUE 37
20 NVM SATURATION 38
05 OFFSET FOR VOLUME CURVE 39
1E VOLUME VALUE (DECIMAL) 3A
31 CONTRAST 3B
19 COLOR SATURATION 3C
20 BRIGHTNESS 3D
07 0,0,P5,P4,P3,P2,P1,P0
LUMA PEAKING VALUE LUPK 3E
01 CURRENT PROGRAM 3F
00 TV STATUS: 00H : TV ON
FFH : TV STBY 40
36 FACTORY CONTRAST 41
19 FACTORY COLOR SATURATION 42
20 FACTORY BRIGHTNESS 43
06 FACTORY PEAKING
b5-b0: LUMA PEAKING VALUE 44
16 END OF HORIZONTAL CLAMP
PULSE 45
19 OSD STATUS
b6: X
b5: PIN ENABLED
b4: CLOCK
b3 R8/30
b2: FRONT LOCK
b1: AV LOCK
b0: E_NORMALIZED PICTURE
46
06 TXT AND OSD OPTIONS
b7: X
b6: ROW 8/30 (TXT)
PREPROCESSING FOR UK
b5: PASSWORD ON/OFF
b4: OSD REMAINING TIME
b3: SIZE OSD PROG: 0= 14”
1= 21”
b2: VPS LOCK ON / OFF
b1: FLOF
b0: TOP
47

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37GT-28FP
VALUE DESCRIPTION ADDRESS
00 BEGINING OF HORIZONTAL
CLAMP PULSE. 48
1F VOLTAGE TO CHANGE TO L-L'
SYSTEM 49
1F VOLTAGE TO CHANGE TO L-L'
SYSTEM 4A
1A VERTICAL SYNC DELAY FOR TXT. 4B
69 SLICER CONTROL TTX ->
NIBBLE_UP = /NIBBLE_DOWN 4C
F0 CHANNEL SEARCH SPEED [UHF] 4D
F0 CHANNEL SEARCH SPEED [VHL] 4E
F0 CHANNEL SEARCH SPEED [VHH] 4F
AA HORIZONTAL SYNC DELAY 50
00 PASSWORD 1st DIGIT 51
00 PASSWORD 2nd DIGIT 52
00 PASSWORD 3rd DIGIT 53
00 PASSWORD 4th DIGIT 54
01 CHARACTER SET (LANGUAGE
TXT) 55
40 MAXIMUM TUNNING VOLTAGE
DECREASE DURING PROG.
CHANGE (IN CASE IT IS NOT
FOUND THE SYNCHRO)
56
VALUE DESCRIPTION ADDRESS
00 b0: HOTEL MODE: DEACTIVATE
THE TV PANEL FRONTAL KEY.
IT STARTS UP IN SCART
MODE
WHEN SSW SIGNAL IS GIVEN
b1: SPECIAL HOTEL MODE FOR
S.E.I.S. THE TIME CONSTANT
TO VCR MODE
b2: OPTION FOR DK_SYSTEM.
b3: AUTOINSTALL ON.
b4: COUNTRY SELECTION
MENU.
b5-b6: RGB DACs LEVEL.
b7: VPS_LOCK_SET
57
0F TIMING PACKET SEARCH, VPS. 58
20 VERTICAL SHIFT FOR 60HZ 59
BB ONE STEP DOWN WHEN THE
FIRST SYNCHRO LOOSING IS
PRODUCED
5A
15 UP MAXIMUM STEP No DURING
SEARCHING (

). 5B
00 CORRECTION VALUE OF V-SHIFT
IN ORDER TO BE INDEPENDENT
TO V-AMP BAND OFFSET SPEED
DURING SEARCHING
5C
15 AUTOMATIC PEAK RGB
REGULATION: PIC REGULATOR 5D
D2 BAND OFFSET SPEED DURING
SEARCHING (

)
NIBBLE_UP=/ NIBBLE_DOWN
5E
00 FREE 5F
10 TIMING PACKET SEARCH, 8/30. 60
---- RESERVED 61
a
FF
PIF/AGC Adjustment
1. B/G, L “AFT C”should not be adjusted. The value should be fixed to 0A.
2. B/G, L “AFT F”Adjustment
2.1. Connect the output of SSG (Standard Signal Generator) to the tuner IF output terminal.
·SSG output 38.9 MHz (CW) ± 5 KHz.
·SSG output level: approx. 90 dB/uV.
2.2. Enter into Service Mode.
2.3. Select parameter AFT F.
2.4. Push «CALL»button on R/C, see Page 43. «AFT OK»will appear in On Screen Display (OSD).
2.5. Switch set OFF and ON again, setting is now memorized.
3. L’“AFT C”should not be adjusted. The value should be fixed to 03.
4. L’“AFT FL”Adjustment
4.1. Connect the output of SSG (Standard Signal Generator) to the turner IF output terminal.
·SSG output 34.47MHz (CW) ± 5 KHz.
·SSG output level: approx. 90 dB/uV.
4.2. Enter into Service Mode.
4.3. Select parameter AFT FL.
4.4. Push «CALL»button on R/C, see Page 43. «AFT OK»will appear in OSD.
4.5. Switch set OFF and ON again, setting is now memorized.
5. RF-AGC Adjustment
5.1. Receive the “COLOUR Bar”Signal (Channel E-10). Signal strength: 53dB/uV
5.2. Enter into Service Mode.
5.3. Select parameter AGC.
5.4. Push “CALL”button on R/C, see Page 43. “BUS STOP”will appear in OSD.

9
37GT-28FP
Screen Adjustment
1. Focus Adjustment
1.1. Apply mains voltage of 220V AC/50HZ to TV.
1.2. Receive Philips pattern signal to a level between 60 and 80 dB/uV.
1.3. Set contrast to 10/10, brightness to 5/10 and colour 0/10.
1.4. Adjust focus potentiometer to obtain maximum definition.
2.G2 Adjustment
2.1. Apply mains voltage of 220V AC/50HZ to TV.
2.2. Receive the “Cross Hatch”pattern signal to a level between 60 and 80 dB/uV.
2.3. Apply High Voltage Probe to Pin 8 of CRT socket
2.4. Adjust G2 potentiometer until obtaining 525V ±10%.
2.5. Check BKGD. If it is necessary adjust BKGD according to instructions detailed below.
Geometry Adjustment Procedure
1. Horizontal Shift
1.1. Receive Philips pattern signal.
1.2 Select H-SHFT with channel up or channel down buttons.
1.3. When volume up button is pressed, picture moves to the left.
1.4. When volume down button is pressed, picture moves to the right.
1.5. Adjust the horizontal location to obtain picture centering (Fig.2).
Fig. 2
2. Vertical Shift
2.1. Receive Philips pattern signal.
2.2. Select V-SHFT with channel up or channel down buttons.
2.3. When volume up button is pressed, picture moves up.
2.4. When volume down button is pressed, picture moves down.
2.5. Adjust the vertical location to obtain picture centering (Fig.3).
Fig. 3
3. Vertical Amplifier
3.1. Receive Philips pattern signal.
3.2. Select V-AMPL with channel up or channel down buttons.
3.3. When volume up button is pressed, vertical size of picture increases.
3.4. When volume down button is pressed, vertical size of picture decreases.
3.5. Adjust the vertical size to obtain picture overscan (Fig.4).
Fig. 4
The following adjustments are required when the Picture Tube or IC801 are replaced, or may be nec-
essary after adjustment of the G2 voltage.
Colour Adjustment (BKGD) Procedures
1. «B-GAIN», «G-GAIN»
1.1. Adjust G2.
1.2. Tune a grey scale pattern.
1.3. Adjust colour to minimum.
1.4. Fix R-GAIN value to 32.
1.5. Position colorimeter in the left point of Fig.5.
1.6. Using brightness and contrast buttons, select a luminance of »120 nits.
1.7. Operate again in Service Mode and select location B-GAIN and G-GAIN to obtain colour coordinates:
X = 0.290 ± 0.015
Y = 0.284 ± 0.015
6 5 4 3 2 1 0
Gain point
DC point
5.5. Push “GREEN”button on R/C (to exit Bus Stop Mode).
5.6. Switch set OFF and ON again, setting is now memorized.
Fig. 5

10
37GT-28FP
Procedure to Program Functions of Hotel Mode
Below listed can be found the procedure to carry out in the above TV Sets functions called HOTEL MODE as follows:
Consider that HOTEL MODE is implemented by means of HOTEL MODE 1. The HOTEL MODE 2 or HOTEL MODE 3
can be used at the same time than HOTEL MODE 1.
HOTEL 1 Blockade of tuning functions Restriction of sound
HOTEL 2 Blockade of tuning functions Start on SCART mode + SW when
SCART IS ACTIVE (Front Panel inactive)
HOTEL 3 Blockade of tuning functions VCR constant changed
Hotel 1 Mode: blockade of the TUNING function by modifying the value in 0A address of the NVM.
-This change besides blocking the tuning function, makes the TV always starts to operate in program 1.
Procedure:
A) Press the volume up or volume down buttons (RC) as far as the NVM address (green colour) displays “0A”location.
Check the NVM value (red colour) displays the NORMAL VALUE .
B)Pay Attention: Press the button 2 (RC) only once. The NORMAL VALUE has been changed to the HOTEL 1 MODE
VALUE now. If the button 2 (RC) is pressed again the NORMAL VALUE is recovered. For the same reason, if a wrong
button has been pressed, NORMAL VALUE can be recovered by pressing the same button again. See NVM table on
page 6.
Restriction of Sound Volume: by modifying the value in 0E address of the NVM.
Notes:
a) Before blocking the tuning function is necessary to memorise the programs according to the necessities of the destina-
tion hotel.
b) Since the Hotel Mode functions have been programmed the end users of the television won’t be able to tune different
channels neither to erase the existent ones.
1.8. Exit Service Mode and check colour coordinates «X»and «Y»at 20 and 120 nits. It may be necessary to repeat the
same procedure or readjust the cuts as show the be below one.
2. «CUT R», «CUT G»
2.1. Adjust G2, in the case that it has not been made previously.
2.2. Tune a grey scale pattern.
2.3. Adjust colour to minimum.
2.4. Position colorimeter in the right point of Fig.4.
2.5. Using brightness and contrast buttons, select a luminance of »20 nits.
2.6. Operate again in Service Mode and select location CUT-G and CUT-R to obtain colour coordinates:
X = 0.290 ± 0.015
Y = 0.284 ± 0.015
2.7. Exit Service Mode and check colour coordinates «X»and «Y»at 20 and 120 nits. It may be necessary to repeat
the same procedure or the previous one.
Cancel password (PIN)
The following process describes how to cancel actual password (PIN) when the customer forgets the code.
1. Press channel up or down to select the channel, wich you locked with input PIN number.
2. The TV picture will be blue and the key appear on screen.
3. Press and hold volume down on the TV and simultaneously press CHILD LOCK button (see Page.43) on the remote
control several times until the key disappears.

11
37GT-28FP
c) Neither one will be able to get the sound volume in a superior level to the maximum limited in each case.
Procedure:
A) Press the volume up or volume down buttons as far as the NVM address displays 0E location.
B) By pressing some specific numerical buttons (RC) can be modified the value previously stored in SEES factory in the
0E location, so that the maximum level of sound can be limited from FF (= 100%, the highest volume level stored in
Factory) to 00 (= 0%, no sound). Please find below listed some values which can be stored to reduce the sound
volume level:
Example: After having selected “OE”location, press button 6 of RC (value changed to BF).
- Next press button 5 (value changed to 9F). The value stored will be 9F. The sound volume will be limited to 62% approx.
- If it were necessary to reduce till other different sound levels please change the original FF value to the proper value.
- If it were necessary to recover the original value FF (100% volume) please proceed the contrary.
For instance: If you have limited the sound level to 62% the “0E”location will display “9F”value. Press button 5 (RC) to
recover BF value, then press button 6 (RC) and FF value will be recovered.
Hotel 2 Mode: by modifying the value in 57 address of the NVM .
-When the TV set is switched on by main it starts working in SCART mode.
-When the TV is in STAND-BY mode and it is connected to a VCR through a 21 pins wire, it may be switched on simply
by SLOW SWITCH (VCR in PLAY mode).
-In these circumstances the Front Panel Control Keys does not work.
Procedure:
A) Press the volume up or volume down buttons (RC) as far as the NVM address (green Colour) displays “57”location.
Check the NVM value (red colour) displays the NORMAL VALUE . See NVM Table on page 8.
B)Pay Attention: Press the button 0 (RC) only once. The NORMAL VALUE has been changed to the HOTEL 2 MODE
VALUE now. If the button 0 (RC) is pressed again the NORMAL VALUE is recovered. For the same reason, if a wrong
button has been pressed, NORMAL VALUE can be recovered by pressing the same button again.
Hotel 3 Mode: by modifying the value 57 address of the NVM.
-When this it is activated VCR mode is set in all programs.
Procedure:
A) Press the volume up or volume down buttons (RC) as far as the NVM address (green colour) displays “57”location.
Check the NVM value (red colour) displays the NORMAL VALUE.
B)Pay Attention: Press the button 1 (RC) only once. The NORMAL VALUE has been changed to the HOTEL 3 MODE
VALUE now. If the button 1 (RC) is pressed again the NORMAL VALUE is recovered. For the same reason, if a wrong
button has been pressed, NORMAL VALUE can be recovered by pressing the same button again. See NVM Table on
page 8.
Finally press the Mains Power Button to switch OFF the TV SET . The changes made are stored automatically when the
TV SET is switched OFF.
Check the Hotel Functions work OK.
BUTTON (RC) VALUE SOUND VOL.
TO BE PRESSED STORED LIMITED TO
(4)(3) (EF)(E7) 90%
(5)(4) (DF)(CF) 80%
(6) (BF) 73%
(6)(5) (BF)(9F) 62%

12
37GT-28FP
J105
C605
R615
D704
R714
L802
+
C406
J64
+
C408
C815
+
J42
J86
J7
+
C817
C878
+
+
C607
D603
R604
C603
+
+
C717
C722
+
R701R702
C707
+
R716
C718
J94
JL10 FB401
J101
R862
IC1003
+
C1018
+
C1016
+
C1015
J95
R1046
J18 C1020
+
+
C1019
C730
+
C726
+
+
C714 J85
F7323BMN3
K7323BM
J83
J11
R530
R1028
R819 R820
R536
Q704
J81
R1044
R1025 R1022 R1024
R1023
C503
X1001
J23
J34
J35
L801
J13
R223 R224
J1
R1034 R1037
R1036
L5
+
C1017
R612
J66
J65
+
C801
1
(FV)
3
J63
J60
+
C822
+
C401
R402
+
C819
J67
L206
C209
+
EQ501
B
R502
R511
J22
R529
C216
J58 J57
J39
E
Q503
B
JL1,
JF12
L701
JF15
GND
SDA SCL
IR
(SERVICE)
TP701 C509
JL1
C725
R703
L4
L861C879
R887
(L2)
C701
C705
+
JF10
D709
R510
D503
FB601
D708
C874
(H)
R885
E
Q883
B
C876
G2
R883
B
Q872
E
B
Q887
E
D710
+
C713
R611
TP602
TP601
C608
+
R616
C609
C601
1
2
3
(A)
PR701
C702
+
C604
(H).
X801
.
+
C301
J32 R608
ESPA¥A
F7324BMN3
+
C1001
D1001
KS1001 S1002 S1003 S1004
RMC001
+
C207
C820
+
+
C215
R606
L601
B
Q603
E
R609
R605
EQ602
B
SC401
IF2
IF1
33V
B+
DA
CL
AS
TU
AGC
TU201
1
2
3
4
56
7
8
9
10
T601
R607
R603
R610
SF201 1
5
5
1
SF202
C208
+ +
C205
(L3)
R866
CRT
9
8
7
6
5
4
3
14
8
7
1
T701
T3.15AH
5432
1
(F)
D606
C602
Q601
B
C
E
.
C508
C711
+
S701
12
(G)
F701
B
Q885
E
J71
J87
C803
+
E
Q502
B
D717
J89
J3
J82
JL1.
JL2.
S1
JF13 JF14
5
(K)
E
Q871
B
D201
L205
L204
J5
R305
R302
J2
C812
JL2
JL10.
J55
CF201
1
C223 L202
J40
J50
5
1
(K).
C805
+
J15
R537
R1048
J14
J16
D301
R315
L301
+
C304
FB301
E
C
Q302
E
Q301C
R304
R303
+
R710
R1018
J33
R717
J12
J31
C
Q702
E
C728
+
C712
C727
+
+
C729
L1001
L1002
J26
L1005
BCE
Q708
Q707
J61
J62
J69
J73
J19
J20
J30
J72
R1063
J48
J47
J45 D801
R516
J79 J91
J92 J78
R523
J84
C312
J88
FB701
J70
J46
J54
D602 R816
J52
D605
R617
D604 R613
L602
R614
D608
R1001
R1004
J41
C302
+
+
C307
+
C308
C303
+
C
Q1001
E
R1012
R1011
J36
R301
J38
J37
J100
R1013
+
B
Q870
E
K7324BM
J44
J43
C814
+
C710
+
C709
R708
C734
D707
E
C
Q703
D711
FB405
J29
J76
R718
(S)
R864
J28
J99
D703
C704
D702
C731
R707
D701
J108
F7323N3 MOTHER BOARD UNIT PWB. Component side.
22
23
24
25
17
18
19
20
21
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
Y
X
010 11 12 13 14 15 16 171234 56789

13
37GT-28FP
J105
C605
R615
R715
D704
R210 R215
R218
C809 C810
R421
R1076
Q1011
R1058
R714
R1071
L802
JF16
C406
D411
K
J64
R412
+
C408
K
D808
K
D1009
R1073
C815
+
J42
C816
J86
J7
+
C817
C878 +
C861
R893
+
C607
D603
R604
C603
+
R705
C723
K
D705
K
D716
+
C717
C722
+
R701
R702
+
C707
R716
C718
R312
R321
Q1010 J90
J106
R205
J94
KD410
FB401
R411
J8
R406
R407
D407
K
R826
R823 R824
R825 C808
J6
J101
R409 R408
R414
C405 C404
C872
R880
D861
K
R862
R888
IC1003 C1010
R1042
+
C1018
+
C1016
+
C1015
R1050
J95
R1046
J18
Q1009
R1033
R1039
R1040
Q1006
Q1008
K
D1008
R1041
R1072
C1020
+
R1067
R1068
R1069 R538
R1070
Q1018
R1007
Q1003
Q1002
+
C1019
K
D1006
J80
R1002
R1003
R1006
C730
+
D714 K
R711
C726
+
+
C714
J85
R1005
.
R305
C606
Q704
K
D706
IC701
R812
R811
R1054
R1064
R1017
R802
R801
R804
R803
R1032
J83
J11
R530
R1028
R819 R820
R536 Q705
Q706
R727
R720
R721
J81
R1044
R1025 R1022 R1024
R1023
C503
Q507
Q505
IC1001
R1035
R1065
C1002
C1003
X1001
J23
R1038
J21
J17
Q1007
J34
J35
L801
J13
R223 R224
R1053
R1052
Q1004
R1014
J1
R1034 R1037
R1036
J25
J24
R1066
+
C1017
L201
R1062
Q1015
R612
Q1013
R1061
R1059 R1060
Q1014
J66
J65
+
C801
KD804
D805
K
(FV)
J63
J60
+
C822
+
C401
R402 D401
K
D404
KD405
K
D406
K
+
C819
J4
J67
L206
C209
+
R401
Q501
E
B
R502 R511
K
D505
KD506
J22
R529
C225
C216
J58
J57
J39
J98
K
D811
J96
Q503
E
B
GND
SER
IR SCL
SDA
JF12
L701
JF15
Q401 D607
K
Q506
C725
R703
L861
C879
R887
C701
C705
+
JF10
D709
R510
C509
D503
FB601
(H)
41
R885
Q883
E
B
C876
R883
D812
KC874
B
E
Q872 BE
Q887
D710
C713
R611
C608
+
R616
C609
C601
(A)
1
2
3
PR701
C702
+
C604
(H).
X801
.
F7324BMN3
+
C301
J32
R608
SF201
C207
+
C1001
D1001
K
S1001S1002S1003S1004
RMC001
+
C820
+
+
C215
IC801
48
16
1
R606
L601
BE
Q603
R609
R605
Q602 E B
SC401
TU201
AGC
33V
IF1
IF2
T601
Q604
R607
R603
R610
L203
5
5SF202
C208
+
+
C205
R866
K
D860
CRT
9
8
7
6
5
4
3
T701
1
5432 1
(F)
D606
C602
Q601 C
E
B
C508
C711
+
S701
(G)
1
2
F701
D601
K
D708
BE
Q885
D806
K
J71
J87
C803
+
Q502 E
B
D717
J89
J3
J82
S1
JF13 JF14
5
(K)
Q871 E
B
Q202
D201
L205
L204
J5
R302
J2
C812
J56
J55
CF201 C223
L202
Q204
J40
J50
(K).
D807
K
C805
+
R404
R405
J9
J10
J15
Q305
R537
R1048
J14
J16
D301
R315
L301
+
C304
FB301
E
C
Q302
ECQ301
R304
R303
C312
+
R710
R1018
J33
R1016
R717
J12
J31
Q702
C
C728
+
C712
C727
+
+
C729
L1001
L1002
J26
L1005
Q708
Q707
J61
R719
J62
J69
R1051
J73
J19
J20
J30
C1012
J72
Q1016
R1063
J48
J47
J45
D801
R516
Q1005
K
D1005
J79
J91
J92 J78
IC1002
C1005
C1007 C1008
C201
C203 C204
C206
C210
C211
C212
C213
C214
C217
C218
C219
C220
C221
C222
C315
C409
C507
C610
C611
C715
C724
C802
C804
C806
C807
C811
C813
C818
C860
C862
C871
C873
C901
J103
J51
J59
J93
J97
JF1
JF17 JF2 JF3 JF4 JF5
JF7
JF8
R1015
R1019
R1020
R1021
R1029
R1030
R1031
R1055
R201
R202
R204
R206
R207
R211
R212
R213
R214
R216
R217
R219
R220
R203
R221
R222
R310 R311
R318
R403
R410
R416
R418
R420
R509
R512
R513
R515
R517
R524
R525
R533
R534
R601
R602
R535
R722
R808
R809
R810
R813
R814
R822
R879
R881
R892
R894R899
R523
J84
R519
Q509
C1013
C510
IC501
1
Q701
J88
R704
FB701
C708
R1049
C1014
J70
J46
J54
D602
R816
R815
J52
D605
R617
D604
R613 L602
R614 JF9
JF6
D608
R1001
R1004
R1056
J41 Q1017
J77
R1008
Q304
Q303
R307
C302
+
C309 R306
+
C307
R313
C308
+
R314
+
C303
R1026
Q1001
R1009
C1006
R1012
R1011
R1010
J36
R301
J38
J37
J100
R1013
B
E
Q870
R898
K
D715
K
D721
F7323BMN3
R706
J44
J43
C814
+
R818
R817
C202
J104
C710
+
C709
R708
C734
D707
E
C
Q703
D711
D863
K
D402
K
K
D1004 R1074
K
D802
D610
K
D803
K
R821
JF11
FB405
R415
C410
R413
R417
K
D403
Q203
R1045
R1075
D609
K
J29
J76
R718
Q1012
(S) 1
R864
D862
K
C1009
J28 J99
R1043
R1077
D703
C704
D702
C731
R707
D701
J108
F7323N3 MOTHER BOARD UNIT PWB. Copper side.
Y
X
22
23
24
25
17
18
19
20
21
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
0
21
10 987654317 16 15 14 13 12 11

14
37GT-28FP
F7325N1 FRONT A / V UNIT PWB.
Copper side.
K
D1321
D1320
K
R1420
R1337
R1336
C1330
R1300 R1301
R1317
C1311
L1302
J1301 J1401
(S)
(SH)
+
C1400
R1316
C1310
(FV)
C1300
L1300
C1301
+
D1300
R1400
D1301
C1320
C1331
R1320
R1321
F7325BMN1
1
2
3
4
5
6
7
8
9
Y
X
01234
22
K7325BM
R1300
R1301 R1317
C1311 L1302
J1301
4
2
6
5317
J1401 (S)
(SH)
+
C1400
R1316
C1310
(FV)
C1300
L1300
C1301
+
D1300
R1400
D1301
F7325BMN1
Y
X
1
2
3
4
5
6
7
8
9
0
4321
Component side.
F7325N1 FRONT A / V PWB COMPONENT LOCATION TABLES
Copper side. Component side.
Ref_No Xum Yum
C1320 18135 14859
C1330 53187 18034
C1331 53187 6096
D1320 10007 12954
D1321 34137 13462
R1320 25247 11430
R1321 14071 13970
R1336 53187 16002
R1337 63347 6858
R1420 40487 13970
Ref_No Xum Yum
(FV) 10515 4318
(S) 70967 14986
(SH) 70967 6096
C1300 15849 14224
C1301 7467 13462
C1310 60807 14732
C1311 53187 6350
C1400 44297 7366
D1300 22707 6350
D1301 35153 6350
J1301 52984 20929
J1401 29489 20929
L1300 12039 13462
L1302 62077 3302
R1300 22707 3810
R1301 22707 8890
R1316 64871 14478
R1317 63601 6350
R1400 35153 8890

15
37GT-28FP
MOTHER UNIT F7323N3 PWB COMPONENT LOCATION TABLES.
Component Side.
Ref_No Xum Yum
(A) 17526 178562
(F) 22860 95504
(FV) 84328 43688
(G) 56642 193548
(H) 93472 223012
(H). 71120 32512
(K) 115824 182118
(K). 84328 58166
(L2) 80772 186944
(L3) 68834 181864
(S) 147066 239522
C1 32512 166370
C1001 98806 233680
C1015 149860 154432
C1016 148590 161290
C1017 126492 33782
C1018 148082 167132
C1019 110998 152654
C1020 144018 126492
C205 141732 69596
C207 135890 70104
C208 130048 69596
C209 134112 51308
C215 155448 14224
C216 155194 24130
C223 124206 41148
C301 119888 79248
C302 153416 219710
C303 153416 199898
C304 150114 233426
C307 152654 213360
C308 152654 207010
C312 141478 211074
C401 83820 27432
C406 116586 33020
C408 126492 27686
C503 117856 109728
C508 66040 97536
C509 102870 110998
C601 22352 102108
C602 11176 76962
C603 64008 82042
C604 65786 72644
C605 52578 47244
C607 61214 65024
C608 40386 110744
C609 23368 110236
C701 43942 216662
C702 51562 188214
C704 37592 180594
C705 32765 166116
C707 14478 122936
C709 70104 171196
C710 86868 170434
C711 53340 109474
C712 97536 126238
C713 71882 113538
Ref_No Xum Yum
C714 91948 151892
C717 20828 134620
C718 12954 156718
C722 11684 135128
C725 34798 118618
C726 103632 167132
C727 84836 130555
C728 78486 130048
C729 93218 140716
C730 103632 156718
C731 52578 170688
C734 80264 154432
C801 108712 33274
C803 101600 67056
C805 104902 40894
C812 94234 59690
C814 96520 73152
C815 95250 83058
C817 108966 80772
C819 104140 47498
C820 114554 40894
C822 82804 33528
C874 103886 189992
C876 108204 206756
C878 105664 222758
C879 71628 192278
CF201 132842 42418
CRT 89408 200660
D1001 38506 235991
D201 133096 76708
D301 141224 187706
D503 92202 104394
D602 49276 69850
D603 60198 73914
D604 68072 43180
D605 60198 43688
D606 42418 101346
D608 60706 56388
D701 55372 179578
D702 55372 174498
D703 39624 184404
D704 26924 183134
D707 82042 157988
D708 64516 113284
D709 82550 142240
D710 73660 120904
D711 84836 161544
D717 28448 152146
D801 81280 81280
F701 8890 177546
FB301 138176 233172
FB401 118618 23876
FB405 129794 21844
FB601 6858 91440
FB701 27432 140970
G2 102108 209550
IC1003 152908 174244
Ref_No Xum Yum
IC801 114046 57912
J1 135636 201676
J100 139954 178054
J101 97536 26162
J105 45974 8382
J108 45466 173228
J11 121666 100584
J12 81280 138938
J13 157226 84836
J14 147320 108712
J15 134112 115062
J16 147320 111252
J18 148590 84836
J19 137922 164592
J2 135636 199136
J20 137922 167132
J22 81026 107950
J23 140208 122174
J26 113030 133350
J28 154432 147320
J29 91440 131063
J3 25146 146558
J30 137922 169672
J31 81280 136398
J32 61468 94234
J33 129794 156464
J34 150368 99568
J35 150368 97028
J36 142494 184658
J37 139954 175768
J38 139954 173228
J39 156718 34290
J40 81788 84836
J41 127254 158496
J42 103378 77470
J43 114554 82296
J44 116840 82296
J45 78994 78740
J46 123698 135128
J47 78740 76200
J48 92964 72898
J5 127000 235712
J50 83058 69342
J52 74676 62992
J54 121158 135128
J55 130809 50800
J57 154178 37338
J58 151638 40640
J60 97536 29718
J61 121158 146050
J62 113030 143510
J63 97536 32258
J64 133096 31242
J65 97536 34544
J66 97536 36830
J67 71120 25654
J69 113030 141224
Ref_No Xum Yum
J7 81534 152146
J70 113030 138684
J71 76708 95250
J72 110744 105156
J73 138176 161544
J76 91440 133604
J78 64135 21640
J79 56642 16687
J81 104648 141732
J82 91440 113538
J83 73914 88138
J84 113030 124714
J85 113030 149098
J86 102616 86106
J87 144780 78740
J88 39116 145542
J89 23774 125476
J91 59055 21640
J92 61595 16687
J94 145288 56388
J95 149606 114554
J99 156718 147320
JF10 6858 91440
JF12 16256 194564
JF13 6096 202438
JF14 6096 215646
JF15 32004 212090
JL1 66040 26416
JL1, 100330 218948
JL1. 61214 117602
JL10 79502 29972
JL10. 93980 65531
JL2 93980 65531
JL2. 132334 10414
KK1 75438 165862
KK4 6858 126238
KK5 6858 144018
L1001 113030 127762
L1002 113030 130809
L1005 113030 135890
L202 129794 38100
L204 133096 84328
L205 133096 80518
L206 124714 46736
L301 156464 228854
L4 47244 13970
L5 150876 62738
L601 46736 81026
L602 60706 52832
L701 43180 201930
L801 150368 94234
L802 135890 29972
L861 67564 193040
PR701 40894 190246
Q1001 152400 192786
Q301 143510 219710
Q302 144272 226314
Ref_No Xum Yum
Q501 102870 120396
Q502 86868 98044
Q503 101346 101600
Q601 13462 82804
Q602 26924 87630
Q603 45720 87630
Q702 85090 123190
Q703 95250 164846
Q704 102108 145796
Q707 104648 130555
Q708 102108 133096
Q870 121158 219710
Q871 117602 189484
Q872 100838 182626
Q883 112776 195326
Q885 109728 214630
Q887 89916 181864
R1001 110744 164592
R1004 113284 164592
R1011 155956 184150
R1012 151892 184150
R1013 139954 180848
R1018 123698 146050
R1022 124206 124714
R1023 129286 124714
R1024 126746 124714
R1025 121666 124714
R1028 140716 97790
R1034 156210 73914
R1036 151130 73914
R1037 153670 73914
R1044 147320 103124
R1046 149860 143002
R1048 147320 105664
R1063 76200 57912
R223 154686 84836
R224 152146 84836
R301 131063 185928
R302 138430 194310
R303 139192 216662
R304 137160 222504
R305 145288 203708
R315 141224 190246
R402 81280 23622
R502 102362 117602
R510 98806 110998
R511 88392 117348
R516 127254 100838
R523 106426 111252
R529 77978 107950
R530 124714 100838
R536 113030 146558
R537 133858 111252
R603 52070 94234
R604 51054 77216
R605 30734 84582
R606 46736 84074
Ref_No Xum Yum
R607 51816 73406
R608 58928 94234
R609 30734 81026
R610 55372 94234
R611 66040 103632
R612 73660 43688
R613 70866 43180
R614 60706 59182
R615 55626 40386
R616 42164 105410
R617 63754 43688
R701 6858 144018
R702 6858 126238
R703 10668 124968
R707 57658 164084
R708 75438 165862
R710 88392 120396
R714 98044 160782
R716 18288 157734
R717 100838 151638
R718 97028 141986
R816 71120 69850
R819 132334 100584
R820 134874 100584
R862 121666 195834
R864 114808 221996
R866 107950 186436
R883 110236 201168
R885 97790 216408
R887 76708 185928
RMC001 98501 244983
S1 20497 243484
S1001 48488 238201
S1002 60502 238201
S1003 72491 238201
S1004 84505 238201
S701 20497 243484
SC401 101117 17246
SF201 134874 62738
SF202 125222 74168
T601 27940 10414
T701 59182 143510
TU201 145034 7874
X1001 135890 122936
X801 100330 56642

16
37GT-28FP
MOTHER UNIT F7323N3 PWB COMPONENT LOCATION TABLES.
Copper Side.
Ref_No Xum Yum
C1002 134874 123952
C1003 134874 121920
C1005 134366 98044
C1006 149606 189230
C1007 138938 12954
C1008 138938 19050
C1009 152654 157480
C1010 147828 168910
C1012 132080 125730
C1013 122936 134874
C1014 125984 132080
C201 127762 46736
C202 126238 55626
C203 138430 52324
C204 134366 80518
C206 134112 70104
C210 134112 51308
C211 148082 34036
C212 146812 29972
C213 147574 24384
C214 148590 21082
C217 134366 84836
C218 142748 76200
C219 151384 52324
C220 146558 80518
C221 130301 36830
C222 130301 39370
C225 148844 17272
C309 155448 215900
C315 143510 224028
C404 112522 13208
C405 116586 13208
C409 119634 17780
C410 112776 26162
C507 111252 105156
C510 111252 112522
C606 71628 34544
C610 69850 83820
C611 46736 85344
C708 29972 138430
C715 66802 143256
C723 16510 140462
C724 49022 137922
C802 118872 44196
C804 102362 68326
C806 97282 36830
C807 97282 32512
C808 100076 27686
C809 80391 73152
C810 82423 73152
C811 95504 53340
C813 100330 62738
C816 97282 83312
C818 114046 75184
C860 82296 181356
C861 108458 219202
C862 117094 198120
Ref_No Xum Yum
C871 110998 190754
C872 118364 204470
C873 96520 186182
C901 97536 56388
D1004 149606 142875
D1005 101092 239268
D1006 117094 160274
D1008 140208 122428
D1009 143002 117856
D401 84074 21844
D402 80518 14986
D403 131063 22606
D404 92202 23876
D405 92202 21844
D406 101092 15748
D407 106172 26416
D410 113284 29972
D411 131572 24892
D505 76454 108458
D506 76454 110490
D601 47752 81280
D607 68072 28194
D609 90424 135890
D610 92710 81026
D705 14986 135382
D706 24638 139446
D714 100584 164084
D715 88138 118110
D716 18034 135382
D721 90170 118110
D802 98806 75438
D803 91948 85090
D804 87376 48260
D805 87376 50546
D806 94742 47752
D807 92456 47752
D808 119888 69596
D811 103632 194564
D812 101600 194310
D860 82296 183388
D861 119380 195072
D862 112268 219456
D863 105918 79502
IC1001 136652 139446
IC1002 144780 154940
IC501 110363 117602
IC701 32512 132588
J10 96012 43180
J103 103632 189611
J104 135636 58674
J106 144018 66040
J17 148844 127508
J21 148844 122174
J24 148590 29972
J25 150368 29972
J4 104648 49784
J51 86360 72136
Ref_No Xum Yum
J56 140716 52324
J59 77470 26924
J6 87376 30734
J77 124460 165608
J8 106680 33274
J80 122174 160528
J9 96012 41148
J90 155448 110998
J93 123698 85852
J96 91186 194310
J97 108712 183642
J98 110744 179070
JF1 147828 45974
JF11 33274 8382
JF16 116586 33528
JF17 131826 12954
JF2 26670 16002
JF3 20320 16002
JF4 13970 16002
JF5 7620 16002
JF6 48768 57404
JF7 48768 63246
JF8 48768 61214
JF9 48768 59182
L201 124206 46736
L203 148844 51816
Q1002 111760 156972
Q1003 116332 156972
Q1004 38862 239522
Q1005 138430 99314
Q1006 153416 125984
Q1007 153416 121920
Q1008 153924 130048
Q1009 153924 134112
Q1010 155448 106680
Q1011 102108 160274
Q1012 92202 127508
Q1013 79502 37084
Q1014 87884 37084
Q1015 81280 41656
Q1016 81534 50038
Q1017 125984 160528
Q1018 120142 152400
Q202 132334 75946
Q203 141478 80518
Q204 121158 37592
Q303 151130 226060
Q304 141224 229870
Q305 146050 205486
Q401 69596 14478
Q505 124968 111252
Q506 107950 103886
Q507 115062 110490
Q509 115824 117602
Q604 57912 83058
Q701 27178 144526
Q705 98806 142240
Ref_No Xum Yum
Q706 101092 138684
R1002 118872 162306
R1003 118872 164084
R1005 120650 157480
R1006 118872 165862
R1007 114554 144780
R1008 130048 167640
R1009 147828 189230
R1010 155448 181864
R1014 141986 13716
R1015 138938 14986
R1016 132080 155194
R1017 129286 149098
R1019 111760 233680
R1020 114554 140462
R1021 111760 235966
R1026 147828 196342
R1029 138176 94996
R1030 62992 32765
R1031 65024 32765
R1032 56388 27686
R1033 148844 123952
R1035 148844 132842
R1038 148844 120396
R1039 148844 125730
R1040 148844 129286
R1041 147320 146304
R1042 153162 164465
R1043 152654 147193
R1045 103378 153670
R1049 145542 149860
R1050 147066 164084
R1051 135128 155956
R1052 42164 239268
R1053 35814 239268
R1054 105156 234188
R1055 93472 234950
R1056 130555 163576
R1058 105664 160528
R1059 82804 37084
R1060 84582 37084
R1061 87122 41402
R1062 80264 45974
R1064 127508 149098
R1065 148844 131063
R1066 148590 76200
R1067 64770 42164
R1068 64770 43942
R1069 123952 116078
R1070 117094 152400
R1071 114300 148844
R1072 142748 125984
R1073 145288 119380
R1074 151892 142748
R1075 88138 127254
R1076 98044 160274
R1077 154940 147193
Ref_No Xum Yum
R201 135128 45466
R202 118110 37592
R203 113538 37592
R204 135636 56896
R205 122936 80264
R206 132334 80518
R207 138430 73406
R210 146431 76200
R211 138938 17018
R212 155956 13716
R213 148590 13462
R214 141732 83566
R215 140716 76200
R216 144526 76200
R217 144780 80518
R218 141732 85598
R219 130555 44704
R220 125476 36068
R221 115824 37592
R222 104902 40386
R306 151130 215900
R307 149606 222758
R310 146558 223012
R311 155448 217678
R312 146812 229616
R313 153416 211328
R314 155194 203962
R318 146050 201422
R321 143764 192024
R401 76962 18288
R403 69596 11176
R404 90170 17272
R405 95758 17526
R406 98552 22606
R407 108712 25654
R408 127508 16764
R409 133350 18542
R410 111760 37592
R411 119380 29972
R412 122936 30734
R413 116332 24638
R414 127508 19304
R415 112776 27940
R416 141732 40640
R417 119888 24638
R418 71882 18288
R420 73660 18288
R421 105156 12827
R509 86360 95758
R512 74422 106172
R513 82296 109474
R515 85344 111252
R517 121920 111379
R519 115570 114300
R524 107442 100584
R525 104902 104902
R533 84328 113538
Ref_No Xum Yum
R534 113284 105156
R535 120142 111379
R538 120650 115316
R601 109220 70866
R602 109220 69088
R704 29972 141478
R705 23368 134112
R706 23368 128524
R711 105918 164846
R715 17780 131318
R719 104902 143256
R720 95250 137922
R721 100584 135636
R722 22860 143510
R727 95250 142240
R801 79883 76708
R802 117094 94234
R803 80264 67310
R804 97028 62738
R808 84074 65277
R809 87884 59944
R810 87884 57912
R811 87884 55626
R812 87630 52832
R813 96520 59436
R814 99314 69342
R815 74168 72644
R817 109220 72898
R818 97790 80518
R821 101092 74676
R822 103886 46736
R823 94742 27686
R824 96520 27686
R825 98298 27686
R826 104394 22606
R879 110998 192532
R880 118364 206248
R881 94742 186182
R888 117602 186182
R892 113792 199136
R893 106426 219202
R894 82296 179578
R898 117856 223012
R899 106680 180848

17
37GT-28FP
STV2238 (IC 801)
FEATURES
■I2C BUS CONTROL.
■PIF CIRCUIT WITH PLL DEMODULATION
(Positive and Negative Video).
■SIF CIRCUIT WITH QSS STRUCTURE, FM
DEMODULATION AND AM DEMODULATION
FOR FRANCE.
■INTERCARRIER CAPABILITY.
■BUILT IN SOUND BANDPASS.
■SOUND SUB CARRIERS OUTPUT FOR
STEREO CHASSIS (FM, Nicam).
■AUDIO SWITCH AND VOLUME CONTROL
(Mono Chassis).
■INTEGRATED CHROMA FILTERS AND LUMA
DELAY LINE.
■INTEGRATED CHROMA DELAY LINE.
■VIDEO SWITCH (3 CVBS IN, 1 or 2 CVBS
OUT).
■SVHS SWITCH
(Y combined with CVBS3 input).
■OSD RGB INPUTS.
■EXTERNAL RGB/YUV INPUTS or YUV
INTERFACE.
■PAL / SECAM / NTSC CHROMA
DEMODULATORS.
■AUTO FLESH CONTROL CAPABILITY IN
NTSC.
■SOUTH AMERICA CAPABILITY (PALM/PALN/
NTSC).
■CHROMA SUBCARRIER OUTPUT.
■BLACK STRETCH CIRCUIT.
■PEAKING CIRCUIT.
■AUTOMATIC CUT-OFF CURRENT LOOP.
■MANUAL CUT-OFF POSSIBLE FOR LOW
COST APPLICATIONS.
■TWO PLLs HORIZONTAL DEFLECTION.
■VERTICAL COUNT DOWN.
■HALF CONTRAST (optional).
■APR (Automatic RGB peak regulation)
FUNCTION (optional).
■SAW FILTER SWITCH CONTROL (optional).
■VERY FEW EXTERNAL COMPONENTS.
DESCRIPTION
The STV223XD/223X/224X are fully bus con-
trolled ICs for TV including PIF, SIF, luma, chroma
and deflection processing. Used with a vertical
frame booster (TDA1771 or TDA8174 for 90°
chassis, STV9306 for 110°chassis), they allow
the design of multistandard (BGDKIMNLL, PAL/
SECAM/NTSC) sets with very few external com-
ponents and no manual adjustments.
TQFP64 (14 x 14 x 1.4 mm)
(Full Thin Plastic Quad Flat Pack)
ORDER CODE: STV223XD
SHRINK56
(Plastic Package)
ORDER CODE: STV223X/4X/8X
ICs ADITIONAL INFORMATION
SDA 5552 (IC 1001)
Micronas Intermetall Data Sheet: “SDA55XX TVText Pro”
http://www.micronas.com/products/documentation/consumer/sda555x/downloads/sda55xx_1ds.pdf

18
37GT-28FP
STV 22XX FAMILY CHARACTERISTICS
STV 22XX IC VERSIONS
Package
Application
PAL/SECAM/NTSC
QSS/INTERCARRIER
AM
PAL/NTSC
QSS/INTERCARRIER PAL/NTSC INTERCARRIER
SHRINK56 STV2238/48 STV2237/47 STV2236/46/86
TQFP64 STV2238D STV2237D STV2236D
IC Version
SHRINK56 TQFP64
Function 2236 2237 2238 2246 2247 2248 2286 2236D 2237D 2238D
PAL/SECAM/NTSC XX X
PAL/NTSC XX XX XXX
QSS/INTERCARRIER XX XX XX
INTERCARRIER ONLY XXXX
AM XX X
1 CVBS OUTPUT XXXXXXX
2 CVBS OUTPUTS XXX
1 EXT RGB INPUT XXX X
OSD RGB INPUTS &
RGBEXT/YUVEXT
INPUTS XXX XXX
YUV INTERFACE XX XX
APR XXXXXXX
HALF CONTRAST XXX
SAW FILTER CONTROL XXX
STV2238 (IC 801)

19
37GT-28FP
Pin N°
Symbol DescriptionSTV224X/8X STV223X STV223XD
SDIP56 SDIP56 TQFP64
1 1 8 SIFIN1 SIF Input
2 2 9 SIFIN2 SIF Input
3 3 10 AGCSIFCAP AGC SIF Capacitor
4411VREF IF Voltage Reference Filtering
5 5 12 AGCPIFCAP AGC PIF Capacitor
6 6 13 PIFIN1 PIF Input
7 7 14 PIFIN2 PIF Input
8 8 16 TUNERAGCOUT AGC Tuner Output
9 9 17 IFPLL IF PLL Filter
10 10 18 GND IF IF Ground
11 11 19 AM/FMOUT/SC AM/FM Mono Sound or Stereo Carriers Output
12 12 20 VCC IF 5 V IF Supply
13 13 21 INTCVBSOUT Internal CVBS Output
14 14 22 EXTAUDIOIN External Audio Input
15 15 23 PIFLC1 LC Input
16 16 24 PIFLC2 LC Input
17 17 25 VCC2Video/Luma Supply Voltage (8 V)
18 18 26 CVBSIN1 Internal Video Input
19 19 27 GND2 Video/Luma Ground
20 20 28 CVBSIN2 External Video Input
21 21 29 BS Black Stretch Capacitor
22 22 34 Y/CVBSIN3 Y(SVHS) or CVBS3 External Input
23 23 35 CHR Chroma (SVHS) Input
- 24 37 UIN B-Y Input (Note 1)
- 25 38 VIN R-Y Input (Note 1)
- 26 39 YIN Y Input (Note 1)
- 27 40 YOUT Y Output (Note 1)
- 28 41 VOUT R-Y Output (Note 1)
- 29 42 UOUT B-Y Output (Note 1)
30 30 43 BOUT Blue Output
31 31 44 GOUT Green Output
32 32 45 ROUT Red Output
33 33 46 ICATH Cathode Current Measurement Input
34 34 47 BOSD OSD Blue Input
35 35 48 GOSD OSD Green Input
36 36 49 ROSD OSD Red Input
37 37 50 FBOSD OSD Fast Blanking
38 38 52 XTAL3/BTUN 3.5X MHz Crystal or Cloche Filter Tuning
Capacitor
39 39 53 XTAL2 3.5X MHz Crystal
40 40 54 XTAL1 4.43/3.5X MHz Crystal
41 41 55 CLPF Chroma PLL Filter
42 42 56 X1/VAMP/CHROUT XTAL1 Control Pin, Vertical Amplitude DAC
Output and Chroma Reference Signal Output.
43 43 57 GND1 Chroma/Scanning Ground
STV2238 (IC 801)

20
37GT-28FP
Note:
1. Input/Output not available in STV2236 and STV2236D versions.
- 44 58 CVBSOUT1 Main Video Switch Output
45 45 59 VCC1Chroma/Scanning Power Supply (8 V)
46 46 61 BCL/SAF Beam Current Limiter Control Voltage and
Safety Input (XRAY)
47 47 62 VERT Vertical Output Pulse
48 48 63 HOUT Horizontal Output Pulse
49 49 64 LFB/SSC Line Flyback Input and Super-sandcastle Out-
put
50 50 1 SLPF Scanning PLL Filter
51 51 2 SCL I2C Bus Clock Input
52 52 3 SDA I2C Bus Data Input
53 53 4 VCCDDigital Supply Voltage (5 V)
54 54 5 GND D Digital Ground
55 55 6 AUDIOOUT Main Audio Output
56 56 7 FMCAP FM Demodulation Capacitor
- - 15 SAW Filter Switch Control
25 - 30 BEXT/UEXT External Blue Input or external U input
26 - 31 GEXT/YEXT External Green Input or external Y input
27 - 32 REXT/VEXT External Red Input or external V input
28 - 33 FBEXT External Fast Blanking Input
24 - 36 APR Automatic RGB Peak Regulation
- - 51 HALFCTR Half Contrast Input
44 - 60 CVBSOUT2 Second Video Switch Output
Pin N°
Symbol DescriptionSTV224X/8X STV223X STV223XD
SDIP56 SDIP56 TQFP64
STV2238 (IC 801)
PIN CONNECTIONS STV223XD (TQFP64)