Sharp 21R2BK User manual

1
21R2BK
21R2BK
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.
SERVICE MANUAL
In the interests of user-safety (Required by safety regulations in some countries) the set should be re-
stored to its original condition and only parts identical to those specified should be used.
MODEL
SHARP CORPORATION
COLOUR TELEVISION
Chassis No. GA-1
FEATURES
ËMulti 18 systems
ËFull Auto Channel Preset and Auto Channel Skip
Ë100-CH Program Memory
ËCATV(Hyper Band) Ready
<Used Frequency Synthesizer Tuner>
ËAVL(Sound Keeper) Function
ËHigh Contrast Picture(Black Stretch Circuit)
ËOn Timer/Sleep Timer/Reminder Timer
ËBlue Back Noise Mute
ËFront AV-In & Rear AV-In/Out Terminals
(Front Priority)
ËColour Comb Filter(NTSC only)
ËHeadphone Terminal
ËHotel Mode
ËArabic/Chinese/English/French/Malay/
5 Languages OSD
ËWhite Temperature Adjustment
S03J21R2BK//
Page
CONTENTS Page
»SPECIFICATIONS .............................................2
»IMPORTANT SERVICE NOTES ........................2
»ADJUSTMENT PRECAUTIONS........................3
»MEMORY MAP ................................................12
»GA1 HOTEL MODE APPLICATION ................16
»TROUBLE SHOOTING FLOWCHART............16
»CHASSIS LAYOUT ..........................................19
»BLOCK DIAGRAM...........................................20
»SOLID STATE DEVICE BASE DIAGRAM.......23
»DESCRIPTION OF SCHEMATIC DIAGRAM ..24
»WAVEFORMS..................................................24
»SCHEMATIC DIAGRAM
ËCRT UNIT.....................................................25
ËHEADPHONE JACK UNIT...........................25
ËMAIN UNIT ...................................................26
»PRINTED WIRING BOARD ASSEMBLIES .....28
»REPLACEMENT PARTS LIST
ËELECTRICAL PARTS
MAIN UNIT ...................................................33
CRT UNIT.....................................................36
HEADPHONE JACK UNIT...........................37
ËSUPPLIED ACCESSORIES.........................37
ËPACKING PARTS.........................................37
ËCABINET PARTS .........................................38
»PACKING OF THE SET...................................39

2
2-1 2-2
21R2BK
.....................................................................................................
SPECIFICATIONS
Convergence .................................................................Self Convergence System Focus .......................................................................Quadra-Potential Electrostatic Sweep Deflection......................................................................................Magnetic Intermediate Frequencies Picture IF Carrier ..................................................................................38.9MHz Sound IF Carrier Frequency 6.5MHz ..............................................................................................32.4MHz 6.0MHz ..............................................................................................32.9MHz 5.5MHz ..............................................................................................33.4MHz Colour Sub-Carrier Frequency............................................................34.47MHz Power Input..................................................................... 110 ~ 240V AC 50/60 Hz Power Consumption Audio Power Output Rating ...................................................................
Speaker Size Voice Coil Impedance ........................................................... 16 ohms at 400 Hz Aerial Input Impedance VHF/UHF .......................................................................... 75 ohms Unbalanced Receiving System.............................................PAL-B/G,D/K,I SECAM-B/G,D/K,K1 Tuner Ranges VHF-Channels ..........................................E2(48.25MHz) thru E12(224.25MHz)
C1(49.75MHz) thru C12(216.25 MHz)
S1(105.25MHz) thru S36(423.25HMz)
UHF-Channels......................................E21(471.25MHz) thru E69(855.25MHz)
C13(471.25MHz) thru C57(863.25MHz)
S37(431.25MHz) thru S41(463.25MHz)
Dimensions ..................................................................................Width: 594.0mm
Height: 465.0mm
Depth: 473.5mm
Weight(approx): 21.5 kg
Cabinet material ....................................................................................All Plastics
Specifications are subject to change without prior notice
.
79W
5.0W(at Max.)
.................................................................... 5 x 9 cm Elliptic (2 pcs)
IMPORTANT SERVICE NOTES
Maintenance and repairing of this receiver should be done by quali- fied service personnel only. SERVICE OF HIGH VOLTAGE SYSTEM AND PIC- TURETUBE
When servicing the high voltage system, remove static charge from it by Connecting a 10K ohm Resistor in series with an insulated wire(such as a test probe) between picture tube dag and 2nd anode lead. (AC line cord should be disconnected from AC outlet.) 1. Picture tube in this receiver employs integral implosion protection. 2. Replace with tube of the same type number for continued safety. 3. Do not lift picture tube by the neck. 4. Handle the picture tube only when wearing shatterproof goggles and after discharging
the high voltage completely.
X-RAY This receiver is designed so that any X-Ray radiation is kept to an absolute Minimum. Since certain malfunctions or servicing may produce potentially hazardous radiation with prolonged exposure at close range, the following precautions should be observed:
1.
*If there is a possibility that the high voltage fluctuates as a result of the repairing,
never forget to check for such high voltage after the work.
3. Do not substitute a picture tube with unauthorized types and/or brands which may
cause excess X-ray radiation.
BEFORE RETURNINGTHE RECEIVER Before returning the receiver to the user, perform the following safety Checks.
1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not
lodged between the chassis and other metal parts in the receiver.
2. Inspect all protective devices such as non-metallic control knobs, insulating fishpapers,
cabinet backs, adjustment and compartment covers or shields, isolation resistor- ca- pacity networks, mechanical insulators etc.
2.
When repairing the circuit, be sure not to increase the high voltage to more than 28.0kV(at beam 0
µ
A) for the set.
To keep the set in a normal operation , be sure to make it function on 24.8kV
±
1.5kV(at
beam 1100
µ
A) in the case of the set.
The set has been factory - Adjusted to the above mentioned high voltage.


3
3-1 3-2
21R2BK
ADJUSTMENT PRECAUTIONS
This model's setting are adjusted in two different ways: through the I
2
C bus control and in the conventional
analog manner. The adjustments via the I
2
C bus control include preset-only items and variable data.
1. Setting the service mode by the microprocessor.
1. Short JA 137 & JA 138 for 1 second and release to switch to the service mode position, and the
microprocessor is in input mode. (Adjustment through the bus control).(Use JWS Key to set as well).
2. Press the CH DOWN / UP key on the remote controller to get ready to select the mode one by one. 3. Press the CH DOWN / UP key on the remote controller to select the modes reversibly one by one. 4. Using the VOLUME UP/ DOWN key on the remote controller, the data can be modified. 5. Short JA 137 & JA 138 for 1 second and release to switch to the normal mode (OFF) position, and the
microprocessor is in out of the service mode.
2. Factory Presetting.
1. Short JA 137 & JA 138, then turn on the main power and release to switch to the Service Mode position.
Initial values are automatically preset, only when a new EEPROM is used (Judge with the first 4 bytes ).
2.The initial data are preset as listed in page 5 & 6. 3. Make sure the data need modification not (Initial data).
Note: Once the chassis has been assembly together and ready to be POWER ON for the FIRSTTIME,
make sure to short JA137 & JA138 to switch to the service mode position first and then turn on the main power switch (See 2-1above).
Precaution: If haven't done this initialization, it may possibly generate excessive Beam current.
3. For reference please check with memory map
(GA-1 Series type RH-iX3368CEN6)
 
CAUTION: Make sure TV set is in "Normal condition" before switch to Service Mode for adjustment.
I
2
C
SERVICE MODE
(1) In the Service Mode, Key is used to select the mode in the following order
.
AGC &
GEOMETRIC
MODE
↓
AGCTAKE OVER POINT (AGC)
↓
VERTICAL SLOPE (V-LIN)
↓
VERTICALAMP (V-AMP)
↓
VERTICAL SHIFT (V-CENT)
↓
HORIZONTAL SHIFT (H-CENT)
↓
EAST-WEST WIDTH (H-SIZE)
↓
HORIZONTAL PARALLELOGRAM (EW//)
↓
EAST-WEST PARABOLA/WIDTH (PARA)
↓
EAST-WEST UPPER COR.PB (LOR(U))
↓
EAST-WEST LOWER COR. PB (COR(L))
↓
EAST-WEST TRAPEZIUM (TRAPE)
↓
HORIZONTAL BOW (HB)
↓
S-CORRECTION (S-COR)
WHITE POINT
ADJ.
MODE
↓
W.P RED STD. W.T. (DRI-RS)
↓
W.P. GREEN STD. W.T.(DRI-GS)
↓
W.P.BLUE STD. W.T. (DRI-BS)
↓
W.P. RED WARM W.T.(DRI-RC)
↓
W.P. GREEN WARM W.T.(DRI-GC)
↓
W.P. BLUE WARM W.T.(DRI-BC)
↓
W.P. RED COOL W.T.(DRI-RW)
↓
W.P. GREEN COOL W.T.(DRI-GW)
↓
W.P. BLUE COOL W.T. (DRI-BW)
SUB
ADJ.
MODE
↓
MAX VOLUME (SUB-VOL)
↓
SUB CONTRAST (SUB-CON)
↓
SUB COLOUR (SUB-COL)
↓
SUB BRIGHTNESS (SUB-BRI)
↓
SUB TINT (SUB-TINT)
↓
SUB SHARPNESS (SUB-SHP)
↓
MAX HOTEL VOLUME (HTL-VOL)
↓
HOTEL PROGRAM NO(HTL-PRG)
↓
OSD RGB REFERENCE (RGB)
↓
BLACK LEVEL OFFSET R(CUT-R)
↓
BLACK LEVEL OFFSET B(CUT-B)
↓
CATHODE DRIVE LEVEL(CDL)
FORWARD : CH DOWN KEY REVERSE : CH UP KEY * ( ) means OSD display.
FORWARD : CH DOWN KEY REVERSE : CH UP KEY
AGC &
GEOMETRIC
MODE
WHITE POINT
ADJ.
MODE
SUB
ADJ.
MODE
Y-DELAY
ADJ.
MODE
MISC.
OPTION
MODE
IC
OPTION
MODE
OFFSET
ADJ.
MODE

4
4-1 4-2
21R2BK
Y-DELAY
ADJ.
MODE
↓
Y-D TIME FOR PAL (TV) (DL-PT)
↓
Y-D TIME FOR SECAM (TV) (DL-ST)
↓
Y-D TIME FOR N358 (TV) (DL-3T)
↓
Y-D TIME FOR N443 (TV) (DL-4T)
↓
Y-D TIME FOR B/W (TV) (DL-TV)
↓
Y-D TIME FOR PAL (AV) (DL-PA)
↓
Y-D TIME FOR SECAM (AV) (DL-SA)
↓
Y-D TIME FOR N358 (AV) (DL-3A)
↓
Y-D TIME FOR N443(AV) (DL-4A)
↓
Y-D TIME FOR B/W (AV) (DL-AV)
*(Y-D :Y-DELAY)
OFFSET
ADJ.
MODE
↓
COLOUR OFFSET (PAL) (COL-OP)
↓
COLOUR OFFSET (SECAM) (COL-OS)
↓
COLOUR OFFSET (NTSC358) (COL-O3)
↓
COLOUR OFFSET (NTSC443) (COL-O4)
↓
SHARPNESS OFFSET (PAL) (SHP-OP)
↓
SHARPNESS OFFSET (SECAM) (SHP-OS)
↓
SHARPNESS OFFSET (NTSC358) (COL-O3)
↓
SHARPNESS OFFSET (NTSC443) (COL-O4)
IC
OPTION
MODE
↓
VERTICAL SCAN DISABLE(VSD)
↓
BLACK STRETCH (BKS)
↓
AUTO VOLUME LEVELING(AVL)
↓
FAST FILTER IF-PLL(FFI)
↓
ENABLE VERTICAL GUARD (EVG)
↓
EHT TRACKING MODE (EHT)
↓
OVERSCAN SWITCH OFF(OSO)
↓
AUTO COLOUR LIMIT(ACL)
↓
FORCED COLOUR LIMIT(FCO)
MISC.
OPTION
MODE
↓
SOUND SYSTEM M (S-M)
↓
SOUND SYSTEM DK (S-DK)
↓
SOUND SYSTEM I (S-I)
↓
SOUND SYSTEM BG (S-BG)
↓
PLAYBACK SECAM (P-SECAM)
↓
FE (RF) NTSC 3.58 (F-N358)
↓
FE (RF) NTSC 4.43 (F-N443)
↓
FE (RF) SECAM (F-SECAM)
↓
VIDEO MUTE AT IDENT LOSS (VMI)
↓
VIDEO MUTE AT PROGRAM
/SOURCE CHANGE (VMC)
↓
HOTEL MODE (HTL)
↓
REDUCED FM DEMODULATION
GAIN FOR BTSC SIGNAL (BTSC)
↓
A
A
↓
NUMBER OF EXT AV SOURCE (AV)
↓
FM WINDOW SELECTION (FMWS)
↓
SOUND MUTE BIT 0 (SM0)
↓
SOUND MUTE BIT 1 (SM1)
↓
THAI LANGUAGE (THA)
↓
ARABIC LANGUAGE (ARA)
↓
MALAY LANGUAGE (MAL)
↓
CHINESE LANGUAGE (CHI)
↓
FRENCH LANGUAGE (FRE)
↓
RUSSIAN LANGUAGE (RUS)
↓
FORCED V-SYNC SLICING LEVEL(FSL)
↓
SYNC OF OSD (HP2)
↓
TUNER SELECTION (CPT)
↓
B
↓
BILINGUAL(BIL)
↓
IF AGC SPEED BIT 0 (AGC0)
↓
IF AGC SPEED BIT 1 (AGC1)
↓
FOATime Constant-RF (FOA-FE)
↓
FOB Time Constant-RF (FOB-FE)
↓
FOATime Constant-AV (FOA-AV)
↓
FOB Time Constant-AV (FOB-AV)
↓
LED BLINK SPEED (LED-F)
↓
VOLUME CONTROL TABLE (MSA)
↓
OUTPUT VERTICAL GUARD (NDF)
B
* Direct Key-in for Service Item in Service Mode.
RC COMMAND SERVICE-ITEM
FUNCTION AGC
CONTRAST DOWN V-LIN
COLOUR DOWN V-AMP
BRIGHTNESS DOWN V-CENT
TINT DOWN H-CENT
SHARPNESS DOWN EW / /
SYSTEM HB
BLUEBACK S-COR
TIMER SUB-VOL
CONTRAST UP SUB-CON
COLOUR UP SUB-COL
BRIGHTNESS UP SUB-BRI
TINT UP SUBTINT
SHARPNESS UP SUB-SHP

5
5-1 5-2
21R2BK
EEPROM ITEMS OSD DATA LENGTH
INITIAL DATA
21R2BK REMARK
AGC TAKE OVER POINT AGC 0~63 14 ADJ VERTICAL SLOPE V-LIN 0~63 32 ADJ VERTICAL AMPLITUDE V-AMP 0~63 32 ADJ VERTICAL SHIFT V-CENT 0~63 32 ADJ HORIZONTAL SHIFT H-CENT 0~63 32 ADJ EAST-WEST WIDTH H-SIZE 0~63 32 32 HORIZONTAL PARALLELOGRAM EW// 0~63 32 32 EAST-WEST PARABOLA/WIDTH PARA 0~63 32 32
EAST-WEST UPPER CORNER PARABOLA COR (U) 0~63 32 32 EAST-WEST LOWER CORNER PARABOLA COR (L) 0~63 32 32 EAST-WEST TRAPEZIUM TRAPE 0~63 32 32 HORIZONTAL BOW HB 0~63 32 32 S-CORRECTION S-COR 0~63 0 20 WHITE POINT RED STD WHITE TEMP DRI-RS 0~63 32 32 WHITE POINT GREEN STD WHITE TEMP DRI-GS 0~63 32 ADJ WHITE POINT BLUE STD WHITE TEMP DRI-BS 0~63 32 ADJ
WHITE POINT RED COOL WHITE TEMP DRI-RC 0~63 25 27 WHITE POINT GREEN COOL WHITE TEMP DRI-GC 0~63 32 ADJ Data(DRI-GS)-5 WHITE POINT BLUE COOL WHITE TEMP DRI-BC 0~63 32 ADJ
Same as data (DRI-BS)
WHITE POINT RED WARM WHITE TEMP DRI-RW 0~63 32 32 WHITE POINT GREEN WARM WHITE TEMP DRI-GW 0~63 32 ADJ Data (DRI-GS)-7 WHITE POINT BLUE WARM WHITE TEMP DRI-BW 0~63 32 ADJ Data (DRI-BS)-7 MAX VOLUME SUB-VOL 0~63 63 63 SUB CONTRAST SUB-CON 0~63 63 63
SUB COLOUR SUB-COL 0~63 32 ADJ SUB BRIGHTNESS SUB-BRI 0~63 32 ADJ SUB TINT SUB-TINT 0~63 32 ADJ SUB SHARPNESS SUB-SHP 0~63 32 20 MAX HOTEL VOLUME HTL-VOL 0~63 32 32 HOTEL PROGRAM NUMBER HTL-PRG
0~99 OR>99FOR NONE
255 255
OSD GRB REFERENCE RGB 0~15 15 15 BLACK LEVEL OFF-SET R CUT-R 0~63 32 ADJ
BLACK LEVEL OFF-SET G CUT-G 0~63 32 ADJ CATHODE DRIVE LEVEL CDL 0~15 0 9 Y-DELAY TIME FOR PAL(TV) [YD] DL-PT 0~15 12 12 Y-DELAY TIME FOR SECAM(TV) [YD] DL-ST 0~15 15 15 Y-DELAY TIME FOR N358 (TV) [YD] DL-3T 0~15 12 12 Y-DELAY TIME FOR N443 (TV) [YD] DL-4T 0~15 12 12 Y-DELAY TIME FOR B/W (TV) [YD] DL-TV 0~15 12 12 Y-DELAY TIME FOR PAL (AV) [YD] DL-PA 0~15 12 12 Y-DELAY TIME FOR SECAM (AV) [YD] DL-SA 0~15 15 15
Y-DELAY TIME FOR N358 (AV) [YD] DL-3A 0~15 12 12 Y-DELAY TIME FOR N443 (AV) [YD] DL-4A 0~15 12 12 Y-DELAY TIME FOR B/W (AV) [YD] DL-AV 0~15 12 12 COLOUR OFFSET (PAL) COL-OP 0~15 8 14 COLOUR OFFSET (SECAM) COL-OS 0~15 8 14 COLOUR OFFSET (NTSC358) COL-O3 0~15 4 10 COLOUR OFFSET (NTSC443) COL-O4 0~15 4 10 SHARPNESS OFFSET (PAL) SHP-OP 0~15 8 8
SHARPNESS OFFSET (SECAM) SHP-OS 0~15 4 4 SHARPNESS OFFSET (NTSC358) SHP-O3 0~15 12 8
AFTER SHORT JA 137 & JA 138 ,AND TURN ON THE MAIN POWER SWITCH,READ DATA FROM EEPROM ADDRESS 00H ~ 03H,AND COMPARE TO THE LIST BELOW, IF DIFFERENT, INITIALIZE THE EEPROM.
Address : Data Address : Data
00H : 55H 02H : 43H 01H : 4FH 03H : A1H
EEPROM ITEMS OSD DATA LENGTH
INITIAL DATA
21R2BK REMARK
SHARPNESS OFFSET (NTSC443) SHP-O4 0~15 8 8 VERTICAL SCAN DISABLE VSD
0(DISABLE)/1(ENABLE)
00
BLACK STRETCH BKS
0(DISABLE)/1(ENABLE)
11
AUTOMATIC VOLUME LEVELING AVL
0(DISABLE)/1(ENABLE)
11
FAST FILTER IF-PLL FFI
0(DISABLE)/1(ENABLE)
00
ENABLE VERTICAL GUARD (RGB BLANKING)
EVG
0(DISABLE)/1(ENABLE)
11
EHT TRACKING MODE (HCO) EHT
0(DISABLE)/1(ENABLE)
11
OVERSCAN SWITCH OFF OSO
0(DISABLE)/1(ENABLE)
00
AUTO COLOUR LIMIT ACL
0(DISABLE)/1(ENABLE)
00
FORCED COLOUR LIMIT FCO
0(DISABLE)/1(ENABLE)
00
SOUND SYSTEM M S-M
0(DISABLE)/1(ENABLE)
00
SOUND SYSTEM DK S-DK
0(DISABLE)/1(ENABLE)
11
SOUND SYSTEM I S-I
0(DISABLE)/1(ENABLE)
11
SOUND SYSTEM BG S-BG
0(DISABLE)/1(ENABLE)
11
PLAYBACK SECAM P-SECAM
0(DISABLE)/1(ENABLE)
11
FE (RF) NTSC 3.58 F-N358
0(DISABLE)/1(ENABLE)
00
FE (RF) NTSC 4.43 F-N443
0(DISABLE)/1(ENABLE)
11
FE (RF) SECAM F-SECAM
0(DISABLE)/1(ENABLE)
11
VIDEO MUTE AT IDENT LOSS VMI
0(DISABLE)/1(ENABLE)
11
VIDEO MUTE AT PROGRAM/SOURCE CHANGE
VMC
0(DISABLE)/1(ENABLE)
11
HOTEL MODE HTL
0(DISABLE)/1(ENABLE)
00
REDUCED FM DEMODULATOR GAIN FOR BTSC SIGNAL
BTSC
0(DISABLE)/1(ENABLE)
00
NUMBER OF EXTERNALAV SOURCE AV
0 FOR1 AV/1 FOR 2AV
10
FM WINDOW SELECTION FMWS
0(DISABLE)/1(ENABLE)
00
SOUND MUTE BIT 0 SM0
0(DISABLE)/1(ENABLE)
11
SOUND MUTE BIT 1 SM1
0(DISABLE)/1(ENABLE)
00
THAI LANGUAGE THA
0(DISABLE)/1(ENABLE)
00
ARABIC LANGUAGE ARA
0(DISABLE)/1(ENABLE)
11
MALAY LANGUAGE MAL
0(DISABLE)/1(ENABLE)
11
CHINESE LANGUAGE CHI
0(DISABLE)/1(ENABLE)
11
FRENCH LANGUAGE FRE
0(DISABLE)/1(ENABLE)
11
RUSSIAN LANGUAGE RUS
0(DISABLE)/1(ENABLE)
10
FORCED V-SYNC SLICING LEVEL FSL
0(DISABLE)/1(ENABLE)
00
SYNC OF OSD HP2
0(DISABLE)/1(ENABLE)
00
TUNER SELECTION (0:SHARP/ALPS;1:MURATA)
CPT
0(DISABLE)/1(ENABLE)
00
BILINGUAL BIL
0(DISABLE)/1(ENABLE)
00
IF AGC SPEED BIT 0 AGC0
0(DISABLE)/1(ENABLE)
11
IF AGC SPEED BIT 1 AGC1
0(DISABLE)/1(ENABLE)
00
PHI-1 TIME CONSTANT (RF) FOA-FE
0(DISABLE)/1(ENABLE)
00
PHI-1 TIME CONSTANT (RF) FOB-FE
0(DISABLE)/1(ENABLE)
00
PHI-1 TIME CONSTANT (OFF AIR) FOA-AV
0(DISABLE)/1(ENABLE)
11
PHI-1 TIME CONSTANT (OFF AIR) FOB-AV
0(DISABLE)/1(ENABLE)
11
LED BLINK SPEED LED_F
0(DISABLE)/1(ENABLE)
01
VOLUME CONTROL PWM TABLE MSA
0(DISABLE)/1(ENABLE)
01
OUTPUT VERTICAL GUARD NDF
0(DISABLE)/1(ENABLE)
01
NOTE :
1) Please follow the fixed data according to model. 2) ADJ meaning adjustment data.

6
6-1 6-2
21R2BK
INITIAL SETTING
(1). Please set the MCL to MCL1. Note:
CH-NO Fv (MHz) SOUND SYS
0 41.10 1 48.25 B/G 2 62.25 B/G 3 77.25 D/K 4 175.25 B/G
5 182.25 B/G 6 183.25 D/K 7 191.25 D/K 8 196.25 B/G 9 199.25 M
10 210.25 B/G
11 224.25 B/G
12 471.25 B/G 13 487.25 I 14 503.25 B/G 15 575.25 B/G 16 583.25 B/G
17 599.25 B/G 18 621.25 M 19 639.25 D/K 20 703.25 B/G 21 735.25 I 22 767.25 B/G 23 815.25 B/G 24 855.25 I
"" ""
"
MCL1
CH-NO Fv (MHz) SOUND SYS
25 855.25 B/G 26 55.25 M 27 83.25 M
28 183.25 M 29 193.25 M 30 217.25 M 31 471.25 M 32 477.25 M 33 693.25 M 34 41.10 35 112.25 B/G
36 168.25 B/G 37 38 294.25 B/G 39 463.25 B/G 40 41 647.25 B/G 42 663.25 B/G 43 679.25 B/G
44 174.95 B/G 45 175.55 B/G 46 41.10 99 41.10
(2). After set the MCL, please set the INITIAL SETTING to INITIAL 4. Note: INITIAL 1: For China (All Channel Sound System are set to D/K) INITIAL 2: For Hong Kong (All Channel Sound System are set to I) INITIAL 3: For Malaysia, Singapore,Africa and Australia (All Channel Sound System are set to B/G) INITIAL 4: For Middle-East (All Channel Sound System are set to B/G) INITIAL 5: For Russia (All Channel Sound System are set to D/K)
SHIPPING SETTING & CHECKING
(1) The following default data has been factory-set for the EEPROM follow by INITIAL DATA selected.
ITEMS DATA SETTING
LAST PROGRAM/CHANNEL 1
FLASHBACK PROGARM/CH 1
CHANNEL ENTRY DIGIT NUMBER
1
C-SYSTEM AUTO
S-SYSTEM *1
SKIP OFF
AFC ON
VOLUME 1
CONTRAST 60 (MAX)
COLOUR 0 (CENTER)
BRIGHTNESS 0 (CENTER)
TINT 0 (CENTER)
SHARPNESS 0 (CENTER)
WHITE TEMP STANDARD
REMINDER TIMER In-active, "--:--"
ON TIMER In-active, "--:--"
OFF TIMER In-active, "--:--"
LAST POWER POWER-ON
LANGUAGE *1
BLUE BACK MUTE ON
HOTEL MODE OFF
0 CHANNEL SKIP ON
LAST TV/AV TV
*1: Please refer defaults for LANGUAGE and SOUND SYSTEM per MODEL as follows.
LANGUAGE QTY: ENGLISH/CHINESE/ARABIC/FRENCH/MALAY
MODEL Geomagnetism (V ,H) nT Background Lang. S-SYS Lang. QTY
MID EAST 30,000 20,000 18000K ARABIC B/G 5
FACTORY SETTING BY MODEL
(Reference: Geomagnetism Adjustment)
INITIAL LANGAUGE SOUND SYSTEM
4 ARABIC B/G

7
7-1 7-2
21R2BK
PIF ADJUSTMENT
No. Adjustment point Adjusment conditions / procedre Waveform or others
Tuner IFT ( PRESET )
11. Get the tuner ready to receive the CH. E - 9
signal,but with no signal input. Adjust the PLL data.
2. Connect the sweep generator's output cable to
the tuner antenna. ( RF SWEEP )
3. Adjust the sweep generator's to 80dBuV. 4. Connect the response lead ( use LOW IMPED-
ANCE probe with wave detector ; see Fig.1 ) to the tuner's IF output terminal. ( This terminal must have the probe alone connected ).
5. Set the RF AGC to 0 - 6 V with no saturation with
the waveform.
6. Adjust the tuner IF coil to obtain the waveform as
shown in Fig. 2.
Note:Be sureto keep the tunercoverin position
duringthisadjustment.
RF-AGC TAKE OVER POINT AD- JUSTMENT (I2C BUS
CONTROL)
1. Receive "PAL COLOUR BAR" signal.
» Signal Strength: 57 ±1 dBµV (75 ohm open)
2. Connect the oscilloscope to TP201 (Tuner’s AGC
Terminal) as shown in Fig.3.
3. Call "AGC" mode in service mode. Adjust the
"AGC" bus data to obtain the Tuner output pin drop 0.1V below maximum voltage.
4. Change the antenna input signal to 63~67dBµV,
and make sure there is no noise.
5. Turn up the input signal to 90~95 dBµV to be sure
that there is no cross modulation beat.
Note: For the 50 ohm signal
strength gauge, when not using 50/75 impedance adapter, signal strength is 52±1dBµV(75 ohm open), in-
stead of 57±1dBµV (75 ohm
open).
Precaution: The loss of using
impedance adapter
2
Fig. 3
Fig.1
Fig.2
» Bias box:About 4.5 V
Oscilloscope
0.1V
TV Set
Bias box
TP201+
+
–
–
E-9 CH
P C
10k 100k
1n60
75ohm
IF OUT
-1.5+/-0.8dB
1000p
Oscilloscope
PURITY ADJUSTMENT
No.
Adjustment point
Adjustment conditions/procedure Waveform or others
PURITY ADJ. 1. Receive the GREEN-ONLY signal. Adjust the
beam current to ~700µA.
2. Degauss the CRTenough with the degausing coil.
Note: Follow the Job Instruction Sheet to ad-
just the magnetic field. Vertical Bv: +0.030mT (0.30 gauss) Horizontal Bh: +0.020mT (0.20 gauss) (Reference: page 6)
3. Maintain the purity magnet at the zero magnetic
field and keep the static convergence roughly adjusted.
4. Observe the points a, b as shown in Fig. 4-1
through the microscope.Adjust the landing to the rank A requirements.
5. Orient the raster rotation to 0 eastward. 6. Tighten up the deflection coil screws.
Tightening torque: 108 ±20 N (11 ±2 kgf)
7. Make sure the CRT corners landing meet the A
rank requirements. If not, stick the magnet sheet to correct it. Note: This adjustment must be done after
warming up the unit for 30 minutes or longer with a beam current over 700 µA.
Note: Set the service mode by JA137&138
(short) then press factory process R/C RGB key to change to RGB mono colour mode.
* For the following colours press R/C RGB key to
change.
1
* Press R/C RGB key for 1 sec-
ond in NORMAL MODE, the colour will change to RGB mono colour mode.
ab
A
B
A
B
A = B A = B
Rank "A"
(on the right of the CRT)
Rank "A"
(on the left of the CRT)
Fig. 4-1
Fig. 4-2
Fig. 4-3
Green-only Blue-only Red-only
Signal-colour
screen cleared
ADJUSTMENT PRECAUTIONS: Make sure TV set is in "Normal Condition" before switch to Service Mode for adjustment.

8
8-1 8-2
21R2BK
CONVERGENCE ADJUSTMENT
No.
Adjustment point
Adjustment conditions/procedure Waveform or others
CONVERGENCE
ADJ.
(To be done after the purity adjustment.
1. Receive the "Crosshatch Pattern" signal. 2. Using the remote controller, call NORMAL mode. STATIC CONVERGENCE 1. Turn the 4-pole magnet to a proper opening an-
gle in order to superpose the blue and red col- ours.
2. Turn the 6-pole magnet to a proper opening an-
gle in order to superpose the green colour over the blue and red colours.
DYNAMIC CONVERGENCE 1. Adjust the convergence on the fringes of the
screen in the following steps. a) Fig. 5-1: Drive the wedge at point "a" and swing
the deflection coil upward.
b) Fig. 5-2: Drive the wedge at points "b" and "c"
and swing the deflection coil downward.
c) Fig. 5-3: Drive the "c" wedge deeper and swing
the deflection coil rightward.
d) Fig. 5-4: Drive the "b" wedge deeper and swing
the deflection coil leftward.
2. Fix all the wedges on the CRT and apply glass
tape over them.
3. Apply lacquer to the deflection yoke lock screw,
magnet unit (purity, 4-pole, 6-pole magnets) and magnet unit lock screw. Finally received the Red-only and Blue-only sig- nals to make sure there is no other colours on the screen.
1
RGB
BGR
R G B
R G B
B G R
B G R
RGB BGR
Lacquer
Wedge "a"
Wedge "b" Wedge
"c"
About 100°
About 100°
4-pole magnet
6-pole magnet
CRT neck
20mm 21''
Lacquer
Purity magnet
Fig. 5-1
Fig. 5-2
Fig. 5-3
Fig. 5-4
CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST ADJUSTMENT
No. Adjustment point Adjustment conditions/procedure Waveform or others
CRT CUTOFF ADJUSTMENT (I2C BUS
CONTROL)
Remark 1. Before CRT cutoff adjustment, SUB-BRIGHT,
DRI-RS/RW/RC, DRI-GS/GW/GC, DRI-BS/BW/ BC, CUT-R and CUT-G must be INITIAL DATA.
2. CRT Cutoff adjustment must be done inside a
dark room.
1. SwitchTV to VIDEO mode,BLUE BACK OFF, with
NO VIDEO signal.
2. Press R/C to set Picture Normal condition. 3. First, off the screen by adjust screen variable re-
sistor.
*4.Next, checking AKB circuit function by slowly in-
crease screen variable resistor until colour raster suddenly on and off (AKB start function).
5.Then continue adjust until retrace line appear. 6. Finally, slowly decrease the screen variable re-
sistor until screen retrace line cut off. (Not Raster)
Note:
Mustconfirm theAKBfunctioninsetbeforecon- tinuethenextadjustment.
1
SUB-BRIGHT- NESS ADJUSMENT (I2C BUS
CONTROL)
1. Call " SUB-BRI" in service mode. (Receive Cross-
hatch pattern with 5 black level windows)
2. Adjust the " SUB BRIGHT " bus data in order
that the line 1and 2 have the same darkness wherelse line 3 is one step (data) brighter than line 2. Finally data minus 1 to make line 1, 2, and 3 are in same level (darkness).
2
Line 3 is one step (data) brighter than line 2
t
3.2Vdc 0
*Alternative Procedure (1) Step (1), (2), (3) and (4) are
same as beside procedure.
(2) Then continue adjust until re-
trace line appear and make sure the colour appear whether red, green or blue.
(3) Connect the oscilloscope to
related test points as below which is based on colour appear at (2) RED = TP47R, GREEN = TP47G, BLUE = TP47B.
(4)Then adjust ScreenVR until the
tip of signal reach 3.2Vdc.
1 2
1 2 3 4 5
1 2 3 4 5

9
9-1 9-2
21R2BK
No.
Adjustment point
Adjustment conditions/procedure Waveform or others
WHITE BAL- ANCE SERV- ICE MODE ADJ. (I
2
C BUS
CONTROL)
1. Receive the "WHITE" pattern with BURST signal. 2. Press R/C to set Picture NORMAL condition. 3. Connect the DC miliammeter between TP602
(-) TP603 (+).
4. Check Beam current should be around 1100µA. 5. Set it to service mode and adjust the DRI-GS, &
DRI-BS data to have a colour temperature of 12300°K or 18000°K or 7500°K( white ). * Note .
6. Receive "WHITE" pattern, WITH BURST signal,
and set BRIGHTNESS Y by generator, to **10 cd/m2 (MINOLTA CA-100) by reducing LUMINATE Y signal.
7. Adjust "CUT-R" & "CUT-G" to get desired colour
temperature #. Then go back NORMAL mode (HIGH BRIGHT**) to check colour temperature. If out of range, back to (1).
Note: This adjustment must be done after
warming up the unit for 30 minutes or longer with a beam current over700µA.
* ADJUST DRI-GC/GW, DRI-BC/BW as following
DATA, after finishing DRI-BS and DRI-GS DATA ADJUSTMENT.
DRI-RW = 32 (FIXED), DRI-RS = 32 (FIXED) DRI-BC = "DRI-BS" (For 12300°K And 18000°K And 7500°K Condition)
3# 7500°K X: 0.30
Y: 0.31
# 12300°K X: 0.272
Y: 0.275
# 18000°K X: 0.255
Y: 0.255
(MINOLTA COLOUR ANALYZER CA-100) *Note:Above Data can be UP/ DOWN by Volume key.
LOW HIGH 10cd/m2 120cd/m2
* 7500°K DRI-GW="DRI-GS"-7
DRI-BW="DRI-BS"-5 DRI-GC="DRI-GS"-5 DRI-RC=25
* 12300°K DRI-GW="DRI-GS"-7
DRI-BW="DRI-BS"-7 DRI-GC="DRI-GS"-7 DRI-RC=25
* 18000°K DRI-GW="DRI-GS"-7
DRI-BW="DRI-BS"-7 DRI-GC="DRI-GS"-5 DRI-RC=27
CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST ADJUSTMENT
(Continued)
Max beam check 1. Receive the "Monoscope Pattern" signal.
2. Press R/C to set Picture NORMAL condition. 3. Connect the DC miliammeter between TP603 (+)
& TP602 (—). (Full Scale: 3 mA Range)
4. Beam current must be within 1100 ±100µA.
4
HORIZONTALAND VERTICAL DEFLECTION LOOP ADJUSTMENT
No.
Adjustment point
Adjustment conditions/procedure Waveform or others
V-SLOPE (I
2
C
BUS CON- TROL) V-SHIFT-50 (I
2
C BUS
CONTROL) V-AMP50 (I
2
C
BUS CON- TROL) H-SHIFT (50) (H-CENTER) S-CORREC- TION (I
2
C BUS
CONTROL) SUB-SHARP- NESS Focus
1. Receive Monoscope Pattern Signal. 2. Call the "V-LIN" mode. 3. Increase or decrease "V-LIN" by Volume key till
the horizontal line in the center of monoscope is just at the position where the blanking starts.
1. Call the "V-CENT" mode. 2. Increase or decrease "V-CENT" by Volume key
till the picture is centered.
1. Call the "V-AMP" mode. 2. Increase or decrease "V-AMP" by Volume key to
set overscan of 9.5% typical. Adjustment Spec 9.5% range +1% -0%.
1. Call the "H-CENT" mode. 2. Increase or decrease "H-CENT" by Volume key
to center the picture horizontal.
1. SET DATATO 20 . * Check the E-5 CH Monoscope Pattern then re-
adjust V-Slope, V-Shift and V-Amp to makesure adjustment is in acceptable Ring-Shaped.
1. SET DATATO 20.
1
2 3 4 5
6
1. Receive the "Monoscope Pattern" signal. 2. Press R/C to set Picture NORMAL condition. 3. Adjust the focus control to get the best focusing.
1
PAL CHROMA ADJUSTMENT
No.
Adjustment point
Adjustment conditions/procedure Waveform or others
SUB COLOUR (I
2
C BUS
CONTROL)
1. Receive the "PAL Colour Bar" signal. 2. Press R/C to set Picture Normal condition. 3. Connect the oscilloscope to
Red cathode(D882 Cathode) (Normal Neck) Range : 20 V/div. (AC) (Using 10:1 probe) Sweep time : 10 µsec/div.
4. Using the R/C call "SUB COL" in SERVICE mode.
Adjust SUB COLOUR bus data, so that the 75% White & Red portions of PAL Color Bar be at the same level shown as Fig. 1-1.
*Before adjust SUB-COL,make sure COL-
OP=8,COL-OS=8,COL-03=4,COL-04=4.
After adjust SUB-COL,set COL-OP=14,COL-
OS=14,COL-03=10,COL-04=10.
*Note: For Austraria models,no need to change
COLOS.(COL-OS=8)
5. Clear the SERVICE mode.
1
Cy GB
WY 100%W
75% Mg R
Fig. 1-1

10
10-1 10-2
21R2BK
FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)
No.
Adjustment point
Adjustment conditions/procedure Waveform or others
CONTRAST key 1. Receive "Monoscope Pattern" signal.
2. Set P-Mode to select CONTRAST. 3. Press Volume Up/Down key to check whether the
CONTRAST effect is OK or not.
1
1. Receive "Colour Bar" signal. 2. Set P-Mode to select COLOUR. 3. Press Volume Up/Down key to check whether
the COLOUR effect is OK or not.
2COLOUR key
BRIGHTNESS key 1. Receive "Monoscope Pattern" signal.
2. Set P-Mode to select BRIGHTNESS. 3. Press Volume Up/Down key to check whether
the BRIGHTNESS effect is OK or not.
3
TINT key 1. Receive the "NTSC Colour Bar" signal thruAV in.
2. Set P-Mode to select TINT. 3. Press Volume Up/Down key to check TINT, UP
for GREEN direction and DOWN for PURPLE di- rection whether is OK or not.
4
SHARPNESS Key 1. Receive "Monoscope Pattern" signal.
2. Set P-mode to select SHARPNESS. 3. Press Volume Up/Down key to check whether
the SHARPNESS effect is OK or not.
5
WHITE TEMP 1. Receive "Monoscope Pattern" signal.
2. Set FUNCTION to select WHITE TEMP. 3. Press Volume Up/Down key to check WHITE
TEMP Option, STANDARD: NORMAL SETTING, WARM for more REDDISH direction changing, COOL for more BLUISH di- rection changing.
8
NORMAL Key7 1. Once in PICTURE Mode, and theNORMAL key
is pressed, all the settings will be present to nor- mal setting. (Normal setting value for every mode).
CONTRAST : MAX COLOUR : CENTER BRIGHTNESS : CENTER TINT : CENTER SHARPNESS : CENTER
Notes:If nothing is display
mean contrast, colour, bright, tint, sharpness are all in nor- mal setting.
CH DISPLAY COLOUR 1. All Ch (1~99) will have an OSD display of the
channel number in green colour under AFT ON condition.
6
No.
Adjustment point
Adjustment conditions/procedure Waveform or others
SUB-TINT (I
2
C
BUS CON- TROL)
1. Receive the "NTSC 3.58 Colour Bar" signal thru
AV in.
2. Connect the oscilloscope to TP47B (P882 pin 5)
BLUE-OUT. » Range :100mV/div. (AC)(Use Probe 10:1) » Sweep time : 10 µsec/div.
3. Call the "SUB-TINT" mode in service mode. Ad-
just the "SUB-TINT" bus data to obtain the wave- form shown as Fig. 1-1.
4. Clear the SERVICE mode.
1
Fig. 1-1
NTSC CHROMA ADJUSTMENT
No.
Adjustment point
Adjustment conditions/procedure Waveform or others
BEAM PRO- TECTOR 1. Receive "Monoscope Pattern" signal.
2. Set CONTRAST MAX. 3. Set BRIGHT MAX. 4. During the Collector & Emitter of Q883/5/7 short,
make sure the protector ON and switch to standby mode.
1* Select one of Q883/5/7 to do
each short test.
H.V PROTEC- TOR 1. Receive "Monoscope Pattern" signal.
2. Connect output of Bias Box to D603 cathode
(R610 side).
3. Set voltage of Bias Box to 18V and make sure
the protector is not work.
4. Set voltage of Bias Box to 27V, and make sure
the protector is work.
2
Other protector 1. Once finish rectified Electrolytic Capacitor short
testing in +B line, check all possible damaged components on +B line. (Use random selected set for inspection)
3
PROTECTOR OPERATION CHECKING
No.
Adjustment point
Adjustment conditions/procedure Waveform or others
VIDEO AND AUDIO OUTPUT CHECK
1. Receive the "PAL Colour Bar" signal (100% White
Color Bar, Sound 400 Hz 100% Mod).
2. Terminate the Video output with a 75 ohm imped-
ance. Make sure the output is as specified (1.0 Vp-p ±3 dB).
3. Terminate the Audio output with a 10k ohm im-
pedance. Make sure the O/P is as specified (1.76 Vp-p ±3 dB).
1
VIDEO AND AUDIO INPUT CHECK
1. Using the TV/AV key on the remote controller,
make sure that the modes change in order of TV, AV & TV again and the video & audio output are according to the input terminal for each mode.If connect input to Front and Rear AV terminal, in- put terminal of Front AV will be selected.
2
A/V INPUT AND OUTPUT CHECKING
WYCy G Mg R B
SAME LEVEL