Roadstar TVD-2150 User manual

Service Manual -TVD-2150
R
TVD-2150
Service Manual -TVD-2150

SERVICE MANUAL
14" TV+DVD
SOLID STATE
Color Television
Receiver (TV SECTION)
This manual is the latest at the time of printing, and does not include the modification
which may be made after the printing, by the constant improvment of product.
Checked by : ________________________________________________________
Document : ___________ Approved by : ___________Date : ___________
SM - 49PM
( WANG JUN WEI )
PAL SECAM VERSION
TOSHIBA I2C IC
20-12-2001
GREAT WALL DIGITAL TV RESEARCH INSTITUTE

CONTENTS ( TV SECTION )
1. SPECIFICATION.....................................
2. BLOCK DIAGRAM..................................
3. ALIGMENT INSTRUCTION.......................
4. VOLTAGE TABLE...................................
5. IC601 DATA...........................................
6. BLOCK DIAGRAM..................................
7. WIRING DIAGRAM.................................
This manual is the latest at the time of
Printing , and does not include the modification
Which may be made ofter the Printing, by the
Constant improvement of Product.
SM-49PM P.1

ITEMS OF MEASUREMENT
VIDEO SENS. AT S/N 30db
SOUND SENS. AT S/N 30db
AGC CHARACTER
SELECTIVITY -1.5 MHz
+ 8 MHz
COLOR SENS.
COLOR LOCK - IN RANGE
VERTICAL LOCK - IN RANGE
HORIZONTAL LOCK - IN RANGE
MAX BRIGHTNESS
MAX OUTPUT POWER
OUTPUT POWER AT 10% THD
BUZZ
AFC RANGE
MIN. VOL HUM
RESOLUTION HORIZONTAL
VERTICAL
LINEARITY DISTORTION VERTICAL
HORIZONTAL
RASTER DISTORTION
REMOTE CONTROL DISTANCE
ANGLE
POWER CONSUMPTION ( AT NORMAL CONDITION )
POWER CONSUMPTION ( AT MAX. CONDITION )
CONVERGENCE DISLOCATION AT AREA "A"
AREA "B"
( see fig.1 )
VIDEO INPUT LEVEL : 1.0V P-P + 3dB
AUDIO INPUT LEVEL : 0.5V RMS + 3dB
L - VHF
H - VHF
UHF
L - VHF
H - VHF
UHF
B
A
Fig.1
UNIT
dbuv
dbuv
dbuv
dbuv
dbuv
dbuv
db
db
db
dbuv
Hz
Hz
Hz
cd / m2
W
W
db
MHz
MHz
mV
LINES
LINES
%
%
%
METER
DEGREE
WATTS
WATTS
%
%
H
STANDARD
< 57
< 57
< 60
< 42
< 42
< 48
> 60
> 35
> 40
< 45
> +300
> 6
> 400
> 140
> 1
> 0.7
< -40
> +1
> -0.5
< 20
> 300
> 400
< 10
< 10
< 5
> 5
> +15
< 60
< 70
< 0.4
< 0.8
MODEL : 14"
SM - 49PM P.2

SUPPLY VOLTAGE : AC220V 50Hz > + 10% / -20%
SPECIFICATION
SYSTEM : CHANNEL L - VHF : H - VHF : UHF : VIF FREQUENCY : SIF FREQUENCY : CHROMA IF FREQUENCY : INTER-CARRIER FREQUENCY : SCANNING HORIZONTAL: VERTICAL : ANTENNA INPUT IMPEDANCE : CRT:
PAL - BG
2 - 4
5 -12
21 - 69
38.9 33.4
34.47
5.5
PAL - I
(UK)
21 -69
39.5 33.5
35.07
6
PAL - SECAM -
BG / DK
( HYPER )
1 - 5
6 - 12
21 - 69
38.9
32.4 33.4
34.47 34.47
6.5 5.5
PAL - BG
( CATV )
E2 - S2
E5 - S20
E21 - E69
38.9 33.4
34.47
5.5
PAL - I / I
4 - 13
21 - 69
38.9 32.9
34.47
6.0
PAL - SECAM -
BG / DK
1 - 5
6 - 12
21 - 69
38.0
31.5 32.5
33.57 33.57
6.5 5.5
PAL - BG
( HYPER )
E2 - S10 E5 - S41
E21 - E69
38.9 33.4
34.47
5.5
CH CH CH
MHz MHz MHz MHz
15625 LINE
50 Hz
75 OHM
14"
MODEL : 14"
SM -49PM P.3

SM-49PM P.4
ALIGNMENT INSTRUCTION
I.PLEASE READ BEFORE ATTEMPTING SERVICE
1.Do not connect any antenna plug directly to the tuner socket and do not
connect any equipments directly to the TV chassis,otherwise it may be
burnt out the TV or equipment,execept an isolation transformer is used for
main power source or the TV sets.
2.Never disconnect any leads while receiver is in operation.
3.Disconnect all power before attempting any repairs.
4.Do not short any portion of the circuit while power is on.
5.For safety reasons,all parts replaced should be identical(for parts and
part numbers see parts list).
6.Before alignment the set must be pre-heated for 30 minutes or more and
erase magnetism thoroughly from CRT front chassis frame by erase coil.
II.TEST EQUIPMENT
1.Colour Bar/Dot/Cross Hatch
2.Oscilloscope
3.Vacuum Tube Voltmeter
4.Volt Ohumeter
I. B+ ADJUSTMENT
1.Connect a digital voltmeter to B+ and Ground.
2.Set Brightness Contrest to minimum.
3.Adjust Screen Volume on FBT until the picture can just been seen.
4.Adjust VR901 to obtain a reading of 112 + 0.5V(FOR samsung CRT).
II. AFC ALIGNMENT
1.Disconnect the soldering pad ‘F’.
2.Input the signal from Pattern Generator ( IF 38.9MHz ) colour bar to R101 and GND.
3.Adjust the T101 until the colour bar show on the screer.
4.Select ‘SELF VCO’in D-MODE.
5.Press the AFC button on the handset.
6.About few seconds screen willbe show AFT OK.
*REMARK: No this factory on Normal R.C.
III.AGC ALIGNMENT
1.Receive CH69 (UHF) and input filed strength. TUNER INput Signal 62 + 3dB,
2.Connect a digital Voltmeter between the TUNER AGC Terminal and Ground.
3.Select RAGC item,Adjust the value to 3F,and then adjust the AGC value obtain the voltage drop down 0.4V.
Remark: 1 The drop down voltage should be more than and tends to 0.4V.
2 No observable noise can be seen.
IV.VERTICAL LINEARTY ADJUSTMENT
1.PAL (50Hz)Adjustment
(1).Receive Crosshatch Pattern (50Hz) .
(2).Select VLIS item adjust value to normal regular picture.
2.NTSC (60Hz) Adjustment.
(1).Reneive Cross hatch Patter (60Hz).
(2).Select VILN item adjust value to normal regular picture.
3.Repeat 1.2. receive Cross hatch 50Hz and 60Hz is same picture.
V. VERTICAL HEIGHT ADJUSTMENT
1.PAL (50Hz) Adjust .
(1).Recive Mono scope Patter (50Hz).
(2).Select HITS item adjust value to normal regular picture.
2.NTSC (60Hz).
(1).Receive Mono scope Patter (60Hz).
(2).Select HIT item adjust value to normal regular picture
3.Repeat 1.2. receive Mono Scope Patter 50Hz and 60Hz is same picture.
5.High Voltage Meter
6.Ampere Meter (0.5 Class,DC 3mA Max.)
7.Demagnetizing Coil
8.Closed Caption Encoder
9.High Pot Tester.

VI.VERTICAL S-CORRECTION ADJUSTMENT
1. Receive Cross hatch Pattern
2. Select VSC item adjust value to normal,regular picture.
VERTICAL CENTER ADJUSTMENT
1. PAL (50Hz) Adjustment
(1). Receive Monscope Pattern (50Hz).
(2). Select VP50 item adjust value to obtain the picture at center .
2. NTSC (60Hz) Adjustment
(1). Receive Monscope Pattern (60Hz).
(2). Select VP60 item adjust value to obtain the picture at center.
3. Repeat 1.2. receive Mono Sope Pattern 50Hz and 60Hz is same picture center.
VII. HORIZONTAL PHASE ADJUSTMENT
1.PAL(50Hz)Adjustment.
(1).Receive Mono Scope Pattern (50Hz).
(2).Select HPS item adjust value to normal regular Picture.
2.NTSC(60Hz)
(1).Receive Mono Scope Pattern (60Hz).
(2).Select HPOS item adjust value to normal regular Picture.
3.Repeat 1. 2. receive Mono Scope Pattern (50Hz) and (60Hz) is Same Picture.
SM-49PM P.5
DISTRICT CENTRE (mm)
POSITION LIMIT (mm) SCANNING
SIZE (%)
SCANNING
SIZE
LIMIT (%)
THAILAND
FRANCE
GERMANY
*GROUP A
*GROUP B
*GROUP C
-1
+3
+3
-2
0
+3
0 ~ -2
0 ~ +5
0 ~ +5
-5 ~ -1
-2 ~ +2
0 ~ +5
90
90
90
90
90
90
88 ~ 92
88 ~ 94
90 ~ 95
88 ~ 94
88 ~ 94
88 ~ 94
mm -5 -4 -3 -2 -1 0 1 2 3 4 5 mm
LEFT RIGHT
CENTER OF
THE SCREEN
CRT MUST
FACE TO EAST
REMARK : 1. SUITABLE FOR 14" OR ABOVE TV.
2. Adjust the centre position must take the upper side of monoscope
pattern for standard.
3. Group A : AUSTRALIA, NEW ZEALAND, TAHITI.
4. Group B : HONG KONG, CHINA, AMERICA, CANADA, MALAYSIA,
MEXICO.
5. Group C : ENGLAND, ITALY, GERMANY, RUSSIA, SWITZERLAND,
JUGOSLAVIA, SPANISH.
If the above countries are not include, please consult to
Engineering Dept.

SM-49PM P.6
VIII. WHITE BALANCE ALIGNMENT STEP
(Deqauss the picture by deqaussing coil if necessary)
1. Disconnect the any input signal,set the blue black OFF.
2. Enter to D MODE.
3. Adjust the RCUT,GCUT,BCUT value to 80,GDRV,BDRV to 45,BRTS to CO.
4. Adjust the BRIGHT,CONT to min.
5. Adjust the screen VR (on the FBT) until the show cannot just be screen.
6. Connect the VOLT meter ‘+’ to CRT BOARD G2,(-) to GND and get the reading value.
7. Adjust the screen VR lead the reading value reduce 25 + 5v
8. Adjust the BRTS set to F6,and set BRIGHT,CONT to mid.
9.
10.
IX. SUB-BRIGHTNESS ALIGNMENT
1. Receive a Colour Bar Pattern.
2. Press PICTURE mode select BRIGHTNESS, CONTRAST adjust value to minimum.
3. Select BRTS in D-MODE.
4. Adjust value the brightness bar can just be seen.
X. FOCUS ALIGMENT
1. Set the Brightness and Contrast to middle position.
2. Receive a Monoscope Pattern.
3. Adjust focus control to obtain sharpest picture.
XI. HIGH POT TESTING
1) Short the L-pole and N-pole of AC line cord.
2) Switch on the power switch of the TV Set.
3) Connect The High Pot Tester (-) to L and N pole, (+) to the
METAL PART of CABINET.
REMARK:
(1). If no other specity,the strength of input signal should
be 70dB + 10dB.
(2). The HIGH POT TESTER can have < + 5% tolerance.
Receive a Black and White Pattern.
Select Remote handset direct key (2) and (3) button adjust GCUT and BCUT to minimum
value,Press(1) button adjust RCUT to middle value.
Press Picture mode, select Brightness and Contrast adjust value to minimum.
Press handset direct key (2) button to obtain a yellow line.
Press handset direct key (3) button to obtain a white line.
Press handset direct key (-/--) button again.
Press CH button select GDRV and BDRV item adjust value to make the
Picture uniformly white (9300oK + 3JND).
TEST SYANDARD
CONDITION
SAFETY STD. TEST STANDARD
FOR PRODUCTION
VDE,SAA 3.0KV 10mA / 1MIN >3.5KV <10mA / >10 SEC.
UL 1.0KV 5mA / 1MIN >1.25KV <5mA / >1 SEC.
11.
12.
13.
14.
15.
16.

HOTEL LOCK SETTING
1.Adjust the volume to the lowest level “00”.
2.Press “Vol-” button on the front panel of the set and “Mute “button on the remote
control at the same time ,the set will switch to Hotel Mode,and the menu as shown
below will appear on the screen.
HOTEL MODE
PASSWORD:----
INIT PROG:
VOLUME
l l l l X X
HOTEL LOCK ON/OFF
3.Enter password “2442” by using the number buttons on the remote control .
If a wrong password is entered ,you are not allowed to adjust any item
under this function .
4.Select item INIT PROG with “CH+” or “CH-” button . Then select a program
by pressing number button or “ Volt+” or “ Vol-” button . After setting this function,
The set will be on with this channel each time the set is switched on .
5.Select item “ Volume “ by using “CH+” or “CH-” button , Set the maximum volume
by pressing “Vol+” or “Vol-” button .
6.Select item “Hotel Lock “ by using “CH+” or “CH-” button . Then set “Hotel
Lock” to “ON” or “OFF” status by pressing “Vol+” or “Vol-” button. When “Hotel
Lock” is set to ON, the Volume cannot be set beyond the maximum volume set
in Hotel Lock menu ,and there is no tuning menu under Hotel Lock on status.
TO cancle this function ,set Hotel Lock to “OFF” status.
SM-49PM P.7
7.Press Display button,the set quite to Hotel Lock status.

ENTER D-MODE SETTING
1.Adjust the volume to the lowest level “00”.
2.Press “Vol-” button on the front panel of the set and “display “button on the
remote control at the same time ,the set will into D-Mode mode,and the DATA will
appear on the screen.
RCUT D
80
3. Select “CH+” or “CH-” button to select the DATA . Then select “ Vol+” or “ Vol-”
button to adjust values.
4.Press” Standby”button exit D-Mode mode, the finally values will automatic memory.
SM-49PM P.8

VOLTAGE TABLE FOR TRANSISTOR (ONLY FOR REFERENCE)
SYMBOL
Q101
Q102
Q103
Q104
Q105
Q106
Q201
Q202
Q301
Q401
Q402
Q403
Q501
Q502
Q503
Q504
Q505
Q506
B (V)
1.3
3.6
4.3
2.8
6.3
1.4
17.5
0.6
0.1
0.3
-0.2
5.5
9.0
9.0
9.0
2.6
2.6
2.7
E (V)
0.6
2.9
3.7
3.5
5.5
2.1
17.2
0
0
0
0
4.9
8.5
8.5
8.5
2.1
2.1
2.3
C (V)
9.0
8.9
8.9
0
8.9
0
1.1
0
22.8
14.9
106.0
7.7
107
108.7
105.3
8.5
8.5
8.5
SYMBOL
Q507
Q508
Q601
Q603
Q604
Q605
Q606
Q801
Q803
Q903
Q905
Q906
Q108
Q109
Q110
B (V)
0
0.5
5.0
0.6
0
0
-0.8
3.0
0.67
0
0.6
109.4
3.1
5.1
5.9
E (V)
0.1
1.2
4.5
0
0
0
0
2.3
0
0
0
110
2.4
4.5
5.2
C (V)
9.0
0
5.1
0
5.1
4.9
4
2.3
0
1.1
0
110
5.1
8.9
9.0
For 14
SM-49PM.9
NOTE: VOLTAGE ARE TAKEN UNDER TUNED CONDITION WITH
CONTRAST
BRIGHTNESS
COLOR
SIGNAL INPUT
CHANNEL SETTING
SIGNAL PATTERN
: Maximum Position
: Maximum Position
: Maximum Position
: 70dB + 10dB
: The Last Channel of UHF High
: Colour Bar

SYMBO
L
ITEM(FOR PAL) FOR NTSC PRESET DATA(14") REMARK
* ROUT ROUT 20 20 R CUTOFF
* GOUT GOUT 20 20 G CUTOFF
* BOUT BOUT 20 20 B CUTOFF
* GDRV GDRV 40 40 G DRIVE
* BDRV BDRV 40 40 B DRIVE
O CNTX CNTX 3F 3 SUB CONTRAST MAX
O BRTC BRTC 40 30 SUB BRIGHT CENTER
O COLC COLC 40 40 SUB COLOR CENTER For NTSC
O TNTC TNTC 40 40 SUB TINT CENTER
O COLP 00 FD SUB COLOR CENTER For PAL (DIFFERENCE)
O COLS 40 3E SUB COLOR CENTER For SECAM
O SCNT SCNT 08 08 Y-SUB CONTRAST
O CNTC CNTC 20 30 SUB CONTRAST CENTER
O CNTN CNTN 08 08 SUB CONTRAST MINIMUM
O BRTX BRTX 20 20 SUB BRIGHT MAX (DIFFERENCE)
O BRTN BRTN 20 20 SUB BRIGHT MIN (DIFFERENCE)
O COLX COLX 3 2 SUB COLOR MAX (DIFFERENCE)
O COLN COLN 00 00 SUB COLOR MIN
O TNTX TNTX 28 40 SUB TINT MAX (DIFFERENCE)
O TNTN TNTN 28 4 SUB TINT MIN (DIFFERENCE)
O ST3 ST3 20 20 SUB SHARP CENTER NTSC3. 8 in TV
O SV3 SV3 20 1 SUB SHARP CENTER NTSC3. 8 in VIDEO
O ST4 ST4 20 10 SUB SHARP CENTER other color system in TV
O SV4 SV4 20 0 SUB SHARP CENTER other color system in VIDEO
O SHPX 1A 10 SUB SHARPNESS MAX points from Center value
O SHPN 1A 10 SUB SHARPNESS MIN points from Center value
O TXCX 3F 2 RGB Contrast data at MAX data of user contrast
O RGCN 16 2 RGB Contrast data at MIN data of user contrast
# VM1 00 00 (Setting Data of TB1238),
* HPOS 11 0F 0Hz Horizontal Phase
*VP0 03070Hz Vertical Phase
* HIT 20 23 0Hz Vertical Amplitude
* HPS HPS 04 0 Shift data of 0Hz/60Hz Horizontal Phase
* VP60 VP60 01 04 60Hz Vertical Phase
* HITS HITS 02 00 Shift data of 0Hz/60Hz Vertical Amplitude
OVLIN 080EV-Linearity
O VSC 00 0 V-S Correction
O VLIS VLIS FF FE Shitf data of 0Hz/60Hz V-Linearity
#DPC DPC0000
# DPCS DPCS 00 00
#KEY KEY0000
# KEYS KEYS 00 00
#WIDWID0000
# WIDS WIDS 00 00
#
(Setting Data of TB1238),
Bit 7: F-ID, Bit 6: CW-SW, Bit ,4: ABL Start Point,
Bit 3,2: ABL-Gain, Bit 0: ID-SW
VM0 7C 2C
SM-49PM.10

#VCP VCP0000
#CNRCNR0000
#HCP HCP0000
* SBY 08 08 SECAM B-Y
* SRY 08 08 SECAM R-Y
* RAGC RAGC 30 30 RF AGC Adjustment
# AFT AFT 40 2D PIF VCO Adjuetment
# HAFC 00 00 1/2 AFC data adjustment
O V2 V2 30 4 Volume output data at 2 %
O V 0 V 0 7 60 Volume output data at 0%
* BRTS 00 00 SUB Brightness (DIFFERENCE)
#VM2 VM230B4
Bit 7: Scart input level, 0: high, 1: low,
Bi t6: Po w er on sta te, O: Last memor
y
, 1: standb
y
O MOD 0 MOD 0 42 12 Option items selection (See table 1)
O MOD 1 MOD 1 14 06 Option items selection (See table 2)
# MOD 2 MOD 2 0F 00 Sound System selection (See table 3)
# SELF SELF 00 00
# SELF VCO SELF VCO 80 80
# SELF AGC SELF AGC 69 69
O LOGO LOGO 00 00 00: No LOGO, 01: TEAC, 02: ROWA
OLANG LANG 00 FF Language selection See Table
OLANG1 LANG1 00 07 Language selection See Table 6
O IF FREQ IF FREQ 00 03 00: No use, 02: 39. MHz, 03: 38.9MHz, 04: 38MHz
O TDVD1 TDVD1 00 00 DVD ON BEGINNING DELAY TIME
O TDVD2 TDVD2 00 FB DVD ON END DELAY TIME
O TDVD3 TDVD3 00 30 DVD ON PULSE WIDTH TIME
O TELE BRIG TELE BRIG 00 00 TEXT BACKGROUND BRIGHTNESS
O SECAM VT SECAM VT 00 00 SECAM-L' Tuning Voltage Adjustment
* SECAM AGC SECAM AG
C
00 00 SCEAM-L' AGC Adjustment
O SECAM AFT SECAM AF
T
00 00 SCEAM-L' AFT Adjustment
OMOD3 MOD3 00 0E Bit7-6:Eye protection,11=1.8m,10=1. m,01=1.2m,00=1m,
Bit :E
y
e
p
rotection action.Bit 4: German Stereo action.
O OSD OSD 00 0D OSD Position
REMARK:
OPTOPT0
1. PRESET data is IC TB1238 original data. 2. ( * ) Adjustable data (different data in different TV Set.
3. ( o ) Adjustable data ( only by Engineer app.) 4. ( # ) NON-Adjustable dat
Option Selection
Bit7- : No use, Bit 4: Not VT Down of AFT when No Signal
(=1), Bit 3: Audio Gain SW of TB1238,
Bit
0C00
SM-49PM.11

TABLE 1 Option item selection (MOD 0)
Bit 7 Color Mode Selection 0: Auto,PAL,NTSC3. 8,NTSC4.43, 1: Auto,PAL,NTSC3. 8/4.43,PAL-M/N
Bit 6 Color Mode Selection 0: No use, 1: SECAM
Bit 0: CVBS input, 1: Y/C input (TV+DVD Chassis action)
Bit 4 Teletext Selection 0: No use, 1: Teletext action
Bit 3 Stereo Selection 0: Normal, 1: German Stereo and NICAM
Bit 2 CCD Selection 0: No use, 1: CCD Action
Bit 1 0: No action, 1: Press Panel two Key (Vol-/Pos+) to enter DVD
Bit 0 0: Language Number<=7, 1: Language Number<=11
TABLE 2 Option items selection (MOD 1)
Bit 0 IF mute option 0: IF no mute in video1, 1: RF AGC=01 in video1(at Scart on)
Bit 1 Position Number 0: 0 Position, 1: 100 Position
Bit 2 Scart ON/OFF 0: Scart Off, 1: Scart On
Bit 3 Window Menu 0: Background & Full-raster Blanking Disable in MENU, 1: Enable in MENU
Bit 4 Number of VIDEO 0: TV/VIDEO (1CH), 1: TV/VIDEO1/VIDEO2 (2CH)
Bit Band switch out 0: Tuner without Bandswitch, 1: Tuner with Bandswitch
Bit 6 Band selecter 0: Full Band, 1: Only UHF Band
Bit 7 Power 0: Positive, 1: Negative
TABLE 3 Sound system selection (MOD2)
Sound System Data
BG or DK or I 00 Bit4=L, Bit3=DK, Bi2=BG, Bit1=I, Bit0=M
DK or I 0A
BG or DK 0C
BG or I 06
LOGO
NO LOGO 00
TEAC 01
ROWA 02
Table 4
Shop-out2 Shop-out1
0 1 I
1 0 BG
1 1 DK
Table Language selection
Bit 0 1: English
Bit 1 1: France
Bi t 2 1: Ita ly
Bit 3 1: Russia
Bit 4 1: German
Bit 1: Spanish
Bit 6 1: Polish
Bit 7 1: Romanian SM-49PM.12

Table 6 Language selection
Bit 0 1: Portuga l
Bit 1 1: Hungrian
Bit 2 1: Nederland
Bit VM0
0 ID SW(ID Sensitivity Switching 0: Normal 1: Low Mode(This function works on only for NTSC Mode)
1No use
2 ABL-Gain 00: -0.74V, 01: -0.64V
3 10: -0.37V, 11: -0.12V
4 ABL Start Point 00: -0.01V, 01: -0.11V
10: -0.30V, 11: -0.4 V
6 CW-SW 0: Auto, 1: 4.43MHz
7 F-ID(Forced ID ON) 0: Normal 1: Killer OFF on Fixed System(This function doesn't work on auto1&Auto2 Mode
Bit VM1
0 BLK 0: ON, 1: OFF
1 V-Mute Time Time=200ms(Max),8msxData
2
3
4
6 N-COM(NTSC Comb SW) 0: ON , 1: OFF
7No use
SM-49PM.13

VOLTAGE TABLE FOR IC ( ONLY FOR REFERENCES )
( FOR 1P.TEXT )
PIN NO. SYMBOL
5.0 5
3.6 3.6
8.6 8.9
2.1 2.5
GND 0
0.7 0.4
2.0 0
4.6 4.5
4.8 4.2
2.3 2.3
2.5 2.5
GND 0
0.2 0
2.7 2.6
2.7 2.4
2.7 2.6
8.7 9
2.8 2.9
2.9 2.7
2.9 2.8
5.9 5.3
4.2 4
4.9 4.8
1.0 1
1.7 1.8
3.4 5
3.5 5
9.3 9
3.8 5.2
1.5 1.6
4.8 4.8
2.0 1.9
GND
1.3 1.2
2.8 2.9
5.3 5.2
2.6 2.5
2.6 2.5
2.9 2.9
7.2 7
1.6 1.6
GND
3.2 3.2
3.6 2.3
5.0 2.9
5.0 4.9
3.6 3.7
5.0 4
GND
7.7 8
7.7 8
8.6 8.8
4.7 4.6
5.8 5.8
4.3 8.8
5.2 5.5
IC101
(TB1238)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
NOTE : VOLTAGE ARE TAKEN UNDER TUNED CONDITION WITH
CONTRAST
BRIGHTNESS
COLOR
SIGNAL INPUT
CHANNEL SETTING
SIGNAL PATTERN
:
:
:
:
:
:
Maximum Position
Maximum Position
Maximum Position
70dB +10dB
The Last Channel of UHF High
Colour Bar
SHARP : Maximum Position
IC601
(CPU) TDA5348 IC801 IC802 IC302
(SECAM)
GND
4.7 2.3
5 4.8
0
0
0 NC
5 4.8
5 0.8
5 4.9
0 4.9
5 4.9
5 4.9
2.6 2.0
NC 4.9
5 4.9
5 4.9
NC 0
NC 0
NC 0.9
NC 0
GND
0 0
0 0
0 0
0 0
4 4.2
4.9 4.7
5 4.9
5 4.9
GND
2.2 2.1
2.2 2.4
0.2 4.9
0.2 0
5 4.9
4.8 4.8
5 4.9
3.2 4.9
0.3 0
0 0
0 0
5 5
5 0.6
2 GND
3.6 5
0 GND
GND NC
5 5
2.2 GND
2.4 0
2.5 0
5 0
GND 2.6
NC 0
5 NC
NC
0.2 NC
0.2 3.5
0.2 3.7
2.6 NC
1.6 NC
GND 0
NC GND
2.5 5
NC 2
2.9 1.8
3.2 GND
NC GND
NC GND
NC 2
0 0
0 0
0 0
0 4.9
5 4.2
4 0
0 1.9
1.6 1.6
0 1.3
0 1.2
1.1 0
4.9
NC
NC 3.6
NC
2.9 0.7
NC 0
0 0
2.6 2.9
NC
2.5 2.6
2.5 2.6
2.5 2.6
2.5 2.6
4.6 2.1
NC
4.9 5.1
NC
0 GND
2.9 2.6
3.3 3.7
2.5 2.8
2.6 2.8
NC GND
0.7 0.7
4.9 5.1
2.7 2.7
NC
1.4 3.8
SM -49PM P.14
GND
12.7 12.9
24.4 24.4
0.9 0.9
0.9 1.0
24.3 24.0
1.2 1.5
IC401

VOLTAGE TABLE FOR IC ( ONLY FOR REFERENCES )
( FOR 1P.TEXT )
PIN NO. SYMBOL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
SM -49PM P.15
NOTE : VOLTAGE ARE TAKEN UNDER TUNED CONDITION WITH
CONTRAST
BRIGHTNESS
COLOR
SIGNAL INPUT
CHANNEL SETTING
SIGNAL PATTERN
:
:
:
:
:
:
Maximum Position
Maximum Position
Maximum Position
70dB +10dB
The Last Channel of UHF High
Colour Bar
IC402
12.2 11.9
GND
9 8.8
IC103
8.2
GND
5.0
GND
GND
2.4
4.4
0
GND
GND
GND
0
0
0
4.4
1.7
4.4
NC
9
IC001 IC602
GND
GND
GND
GND
5 4.9
5 4.9
0 0
5 4.9
3.6
GND
3.6
3.6
3.6
3.6
3.6
0
0.2
0.05
3.0
0.05
3.0
0.05
3.0
12.2
IC102

VOLTAGE TABLE FOR IC ( ONLY FOR REFERENCES )
( FOR 1P.TEXT )
PIN NO. SYMBOL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
SM -49PM P.16
NOTE : VOLTAGE ARE TAKEN UNDER TUNED CONDITION WITH
CONTRAST
BRIGHTNESS
COLOR
SIGNAL INPUT
CHANNEL SETTING
SIGNAL PATTERN
:
:
:
:
:
:
Maximum Position
Maximum Position
Maximum Position
70dB +10dB
The Last Channel of UHF High
Colour Bar
IC901
3.28
1.2
0
32
2.1
IC903
15.1
0
5.01
7.7
5
0
3.6
IC905

L SPEAKER
Q101 SA101 Q201 Q202 IC201
IF AMPLIFER SAW FILTER IC101 MUTECIRCUIT AUDIOPOWER z
Q103 AMPLIFIER
IC801 FM DET IF R SPEAKER
TUNER TELETEXT
PROCESSOR BUFFER
VIDEO
VOLTAGE CONTROL IC802 Q102 IF DET OUT
BAND SWITCH Q301 CCD
PROCESSOR PROCESSING
Q302 Q306 Q104 VIF Q105 IC R OUT Q501 504
Q110 Q801 DET AMP VIF BUFFER G OUT Q502 505 BUFFER B OUT Q503 506
IC601 IC401 V-OUTPUT
Q401 H-DRIVE Q909 DEFLECTIO
IC602 CPU Q803 ODD IC302 SECAM H-OUTPUT H YORK E 2 ROM EVE PROCESSOR Q106 VIDEO
Q605 V OSD BUFFER DVD
IC001 DVDAVCONNECTION IC INPUT
HANDSET
RECEIVER Q606 H OSD R G B
Q601 IC102 SCART J020 VIDEO I O /OFF Q905 Q906 Q907 Q112 VIDEO Q108 AUDIO SWITCHING IC J021 AUDIO I
Q603 604 IC901 CO TROL POWER SUPPLY BUFFER OUT AMP J022 AUDIO I
RESET 5V VOLTAGE O /OFF
Q109 AUDIO R G B
BUFFER SCART
T901 JACK
BR901 IC901 B+110V
POWER 24V T402 SUPPLY 9V IC903 9V
VOLTAGE F . B .T
15V G2 FOCUS
5V Q403 5V
VOLTAGE EHT
BLOCK DIAGRAM
FOR ''14" TV +DVD MODEL PAL SECAM W/ TELETEXT & CCD SCART
SM-49PM.17