Text preview for : (shassis) TV2KY.pdf part of china scheme+SM
Back to : TV2KY.rar | Home
TV2KY CHASSIS
COLOUR TELEVISION RECEIVER
SERVICE MANUAL
SECIFICATION
SYSTEM POWER INPUT POWER CONSUMPTION AERIAL IMPEDANCE TUNER RECEIVING CHANNELS PAL,SECAM, B/G, D/K, AC 180-240V(50/60Hz) 70 W 75 OHM UNVALANCED VOLTAGE SYNTHESIZER TUNING VHF-L E2-S10 VHF-H E5-S41 UHF E21-E69 MAX 261 PROGRAM MEMORIES 21" 2X2.0 W AV SCART & FRONT RCA
PROGRAMME PICTURE TUBE SOUND OUTPUT AV JACKS
CAUTION: Before servicing the chassis, read the "Safely Precaution".
"X -Ray radiation Precaution" and "Product Safety Notice" in this manual.
X-RAY RADIATION PRECAUTION
1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To Avoid such hazards the high voltage must be specified limit. The normal value of the high voltage of this receiver is 25KV +/-1KV under 230V AC power source. The high voltage must not exceed 29.5KV. 2. Each time a receiver requires servicing the high voltage should be checked following the HIGH VOLTAGE CHECK procedure in this manual. It is recommended the reading of the high voltage be recorded as a part of the service record. It is important to use an accurate and reliable high voltage meter. 3. The primary source of X -RAY RADIATION in this TV receiver is the picture tube. For continued X-RAY RADIATION protection, the replacement tube must be exactly the same type tube as used in this TV receiver. 4. Some parts in this receiver have special safety-related characteristics for X-RAY RADIATION protection. For continued safety, parts replacement should be undertaken only after referring the PRODUCT SAFETY NOTICE below.
SAFETY PRECAUTION
WARNING: Service should not be attempted by anyone unfamiliar with the necessary Precautions on this receiver. The following are the necessary precautions to be observed before servicing this chassis. 1. Since the power supply circuit of this receiver is directly connected to the AC power line. An isolation transformer should be used during any dynamic service to avoid possible shock hazard. 2. Always discharge the picture tube anode to the CRT conductive coating before handling the picture tube. The picture tube is highly evacuated and if broken, glass fragments will be violently expelled. Use shatterproof goggles and keep picture tube away from the unprotected body while handling. 3. When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place, such as: nonmetallic control; knobs, insulating covers, shields, isolation resistor-capacitor, network, etc. 4. When replacing parts or circuit boards, disconnect the power cord. 5. When replacing a high voltage resistor (metal oxide resistor) on circuit hoard, keep the resistor APP. 10mm(1/2 in.) away from circuit board. 6. Connection wires must be kept away from components with high voltage or high temperature. 7. If any fuse in this TV receiver is blown, replace it with the FUSE specified in the chassis parts list. 8. The receiver is designed to operate with 230V(50Hz) AC mains.
1
PRODUCT SAFERY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics are often passed unnoticed by a visual inspection and the X-RAY RADIATON protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage. The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock, fire, X-RAY RADIATION or other hazards.
GENERAL ADJUSTMENT AUTOMATIC DEGAUSSING
An automatic degaussing coil is attached around the picture tube, degaussing the tube properly in about one second after the set is switched on. If the receiver is moved or faced on a different direction, the power must be switched off at least 15 minutes in order that the automatic degaussing circuit operated properly. External degaussing is necessary if the automatic degassing proves ineffective after the set is moved.
B+ ADJUSTMENT
CAUTION: To avoid X-ray hazards and result in a nominal display width, B+ voltage must
be 1. 2. 3. 4. 5. set in the scale of 107V+/-0.5V. Make sure the AC power supply is 230V, 50Hz. Switch on the TV receiver, tune in an active channel. Measure the voltage between C641 on Main P.C. Board by DC voltmeter. Set contrast, brightness, color to maximum. Adjust VR631 on Main P. C. Board for B+107V+/-0.5V voltage reading.
HIGH VOLTAGE CHECK
CAUTION: There is no high voltage adjustment in this chassis, B+108.0V voltage directly
relates to the high voltage. The high voltage does not exceed 29.5KV under any conditions. 1. Connect an accurate high voltage meter to the second anode cap of the picture tube. 2. Turn on the receiver, set brightness and contrast to minimum (Zero beam current). 3. Make sure the high voltage does not exceed 29.5KV. 4. NO matter whether the luminance, contrast and chrominance controls are set to maximum or minimum, the high voltage must be kept under 29.5KV.
FOCUSING
Receive a TV test pattern signal; adjust focus knob to get optimum picture, a well-defined, sharpest display in the center area of the screen.
2
ADJUSTMENT AND SERVICING THE CHASSIS
1.Factory mode and factory menu operation Enter factory mode : a) Press [FACTORY] key will switch system from TV mode to factory mode and display factory menu. b) Use Remote controller without [FACTORY], first press [MENU] key to display main menu. During main menu display, enter code "6483" will active factory mode. Quit factory mode : a) Press [FACTORY] key b) First press [MENU] key to display main menu. During main menu display, enter code "6483". c) Select factory"MENU 03"item "PROD MODE",set value to "0", then press [MENU] key quit factory menu display. Factory mode addition function: a) Press [PICTURE] key, 3 more picture preset mode, F000, F550 and F110 can be selected. F000: contract = 0, brightness = 0, color = 0 F550: contract = 50, brightness = 50, color = 0 F110: contract = 100, brightness =10 0, color = 0 b) During volume bar display, press [CALL] key will change volume 0 25 50 75 100. c) During picture menu display, select one of BRIGHT, CONTRAST, COLOR, SHARPNESS, press [CALL] key will change value 0 25 50 75 100. Factory menu operation: In factory mode, press [SLEEP] key will display factory menu. Press [MENU] key will quit factory menu (still in factory mode, for aging procedure) [CH+] / [CH-] : select item (up/down) [V+] / [V-] : change value (when cursor point to first line, select menu page) [SLEEP] : loop select next menu page Factory menu level: Factory menu have two levels, a) "MENU 03" "OPT-ENGINEER"=0, for production Only can select from"MENU 00"to"MENU 03" b) "MENU 03" "OPT-ENGINEER"=1, for engineer design Only can select from "MENU 00" to "MENU 19" (If chip set select LA76810, "MENU 04" "OPT 810/818" = 0, only can select from "MENU 00" to "MENU 15") White balance adjustment: factory "MENU 01" a) Press [RETURN] key enter white balance mode, Single line white balance item will display on top of screen. 3
RB : red bias direct key GB : green bias direct key BB : blue bias direct key RD : red drive GD : green drive BD : blue drive SUB-BRIGHT : sub-brightness direct key CROSS-B/W : test pattern, 0 normal; 1 Factory mode flow-chat:
DIGIT[3] -, DIGIT[4] + DIGIT[5] -, DIGIT[6] + DIGIT[7] -, DIGIT[8] +
DIGIT[1] -, DIGIT[2] + black; 2 white; 3 cross
SLEEP
RECALL MENU
NORMAL
FACTORY FACTORY MENU FACTORY
PRODUCT MODE FACTORY FACTORY
SLEEP
2. LOGO program: When "SYSTEM" sub-menu"BACKGROUND"ON, if no signal input, the screen will display full screen blue. If factory "MENU 06" "O-OPT-LOGO"set to"1", LOGO will display on this blue screen. This LOGO can be programmed by engineer: a) Set factory"MENU 06" "LOGO-EDIT"=1; b) Quit factory mode c) Switch to AV mode(Don't input signal and make sure BACKGROUND is ON) d) Press [-/--] key select edit item CHAR/COLOR/SIZE/POSITION CHAR : character edit, [VOL+/-] move cursor; [PRO+/-] select character COLOR : change color, [VOL+/-] change color; [PRO+/-] select line SIZE : change character size, [VOL+/-] change size; [PRO+/-] select line POSITION : change Display position, [VOL+/-] move left/right; [PRO+/-] move up/down 3. EEPROM address for auto white balance adjustment equipment : LA7681x sub-addr. R bias G bias B bias R drive G drive B drive Sub-Bright 007H (7) 008H (8) 009H (9) 00AH (10) 00BH (11) 00CH (12) 00DH (13) EEPROM addr. 01FH (31) 020H (32) 021H (33) 022H (34) 023H (35) 024H (36) 025H (37) Mask code 0FFH (255) 0FFH (255) 0FFH (255) 07FH (127) 00FH (15) 07FH (127) 07FH (127) Range 0 ~ 255 0 ~ 255 0 ~ 255 0 ~ 127 0 ~ 15 0 ~ 127 0 ~ 127 4
MENU
WHITE BALANCE MODE
LA76810 IIC device address EEPRON IIC device address 4. FACTORY MENU LA76810 OPTION MENU 00 H-PAHSE/50(60) V-POS./50(60) V-SIZE /50(60) V-LINE /50(60) V-SC OSD-V./50(60) LA76810 OPTION MENU 01 RB GB BB RD GD BD SUB-BRIGHT CROSS-B/W LA76810 OPTION MENU 02 SUB-SHARP SUB-CONT. SUB-COLOR SUB-TINT OSD-H-POS. H-BLK-R H-BLK-L LA76810 OPTION MENU 03 AGC-DELAY B-Y DC R-Y DC AC.HIGH AC.LOW PROD MODE ENG.OPTION LA76810 OPTION MENU 04 OPT 810/818 NO-V-MUTE CURTAIN CURT-DELAY LAST-POWER LAST-TV/AV TUNER-TYPE P-OFF-MUTE LA76810 OPTION MENU 05
: 0BAH(186) : 0A0H(160)
Value 11 34 17 18 2 5 Value 135 217 165 98 15 96 96 3 Value 20 99 34 41 22 4 4 Value 13 8 8 0 63 1 0 Value 0 0 3 0 1 0 0 1 Value
Range 0 ... 31 0 ... 127 0 ... 127 0 ... 31 0 ...31 0 ... 31 Range 0 ... 255 0 ... 255 0 ... 255 0 ... 127 0 ... 15 0 ... 127 0...127 0...3 Range 0 ... 63 0 ... 127 0 ... 63 0 ... 127 0 ... 63 0 ... 7 0 ... 7 Range 0 ... 63 0 ... 15 0 ... 15 0...63 0...63 0 , 1 0 , 1 Range 0 , 1 0 , 1 0~3 0~7 0~2 0 , 1 0~3 01 Range 0 RF AGC delay Red bias Green bias Blue bias Red drive Green drive Blue drive
Description Horizontal center Vertical center Vertical size Vertical linearity Vertical S- Correction OSD vertical position Description
Sub-brightness Build-in test pattern Description Sub sharpness (software) Sub contrast (software) Sub color (software) Sub Tint (software) OSD Horizontal position Right blanking adjust Left blanking adjust Description SECAM B-Y DC level SECAM R-Y DC level AC Power safety HIGH voltage AC Power safety LOW voltage Production mode Enable engineer menu Description LA76810; 1 LA76818 None/ON/OFF/both Mute picture when change channel Curtain on/off AC power on Power on delay (when curtain ON) standby/last/on Power on enter TV / last TV,AV Tuner type (refer control logic) Mute RGB when power off Description 5
AV-SYSTEM OPT DVD DVD PORT YUV-DECODE OPT-SVIDEO S-V DETECT S-V PORT 0-DVD-TV LA76810 OPTION MENU 06 0-OPT-LOGO LOGO-EDIT 0-BALANCE 0-WOOFER 0-BLU.BACK 0-PRO.NUM 0-SCART 0-RT-IR LA76810 OPTION MENU 07 0-HALFTONE 0-NO SCRL 0-A2/LNA 0-K7 POWER 0-FM 0-CUSTOM 0-COL.TEMP 0-ZOOM LA76810 OPTION MENU 08 0-AC-DT 0-FIX-PWM 0-FIX VOL FIX VOL OSD-CONT. VIF-SYS. TUNE SPEED LV1116/LV1117 LA76810 OPTION MENU 09 GRAY-MODE AV-AGC CDMODE VS-SEP-UP V-SIZE-CMP BR-ABL-DEF MD-STP-DEF BRT-ABL-TH LA76810 OPTION MENU 10
2 0 0 0 0 0 0 0 Value 0 0 0 0 1 1 1 0 Value 1 1 0 0 0 0 1 0 Value 0 0 0 127 60 0 0 0 Value 0 1 0 1 7 0 0 0 Value
0 ... 3 0 , 1 0...3 0 , 1 0 , 1 0 , 1 0...3 0 , 1 Range 0 , 1 0 , 1 0 , 1 0 , 1 0 , 1 0...2 0 , 1 0 , 1 Range 0 , 1 0 , 1 0 , 1 0 , 1 0 , 1 0 , 1 0 , 1 0 , 1 Range 0 , 1 0 , 1 0 , 1 0 ... 127 0 ... 127 0 ... 3 0 ...3 0 , 1 Range 0 , 1 0 , 1 0 ... 7 0 , 1 0 ... 7 0 , 1 0 , 1 0 ... 7 Range
AV numbers none / 1 AV/2 AV/3AV DVD YCrCb port no/yes DVD attach AV number DVD decode / Video S-VIDEO port no/yer S-VIDEO plug-in auto detect on/off S-VIDEO attach AV number Description LOGO off/on Normal / active LOGO edit mode Volume PWM balance off/on WOOFER channel off/on Full screen black/blue background Max. Program 100/255/512 SCART port no/yes Normal / RTC remote controller Description OSD half-tone background off/on Menu scrolling off/on Pin32 function A2/LNA Front panel K7 Custom option Colour temperature Zoom option 4:3/16:9 Description AC power protection off/on Volume PWM active/fix LA76810 volume control fix Fix volume value OSD contrast VIF freq. 38/38.9/45.75/49.5MHz Auto search speed (recommend 1) LV1116 / LV1117 option Description Internal test white signal (100%/60%) AV mode mute TV off/on Vertical 50/60Hz sync. Mode(testing) Sensitivity of Vertical separation Compensate vertical size Brightness ABL defeat enable/ disable Bright mid stop defeat enable/disable Bright ABL threshold Description 6 Search/Power FM module control off/on
SYNC-KILL AFC-GAIN FBP-BK-SW H-FREQ FILT-SYS. TRAP.TEST LA76810 OPTION MENU 11 C-KILL-ON C-KILL-OFF AUTO-FRESH BLANK-DEF R/B G BAL R/B ANGLE VIDEO-MUTE VIDEO-LVL LA76810 OPTION MENU 12 C-EXT C-BYPASS DIG.-OSD FM-GAIN DE-EMP.-TC FM-LEVEL LA76810 OPTION MENU 13 ENGLISH ARABIC RUSSIAN TURKISH PERSIAN FRENCH LA76810 OPTION MENU 14 COL-PAL COL-NT3.58 COL-SECAM COL-NT4.43 SND-D/K SND-B/G SND-I SND-M/N LA76810 OPTION MENU 15 EM-ABL CORING EN. BLK-STR-DF B-GAMMA RG-GAMMA LA76810 OPTION MENU 16
0 1 0 34 2 4 Value 0 0 0 0 8 8 0 7 Value 0 0 0 0 0 17 Value 1 1 1 1 1 1 Value 1 0 1 0 1 1 0 0 Value 0 1 1 3 0 Value
0 , 1 0 , 1 0 , 1 0 ... 63 0 ... 15 0...7 Range 0 , 1 0 , 1 0 , 1 0 , 1 0 ... 15 0 ... 15 0 , 1 0 ... 7 Range 0 , 1 0 , 1 0 , 1 0 , 1 0 , 1 0 ... 31 Range 0 , 1 0 , 1 0 , 1 0 , 1 0 , 1 0 , 1 Range 0 , 1 0 , 1 0 , 1 0 , 1 0 , 1 0 , 1 0 , 1 0 , 1 Range 01 0 , 1 0 , 1 0 ... 3 0 , 1 Range
Force H.OSC. free run mode(testing) AFC gain & gate auto/high gain FBP blanking int./ int."OR"FBP Hor. Frequency (only for ES Sample) Y/C filter select Sound trap control (testing) Description Color Kill mode (testing) Disable killer circuit (testing) NTSC auto flesh switch off/on RGB output blanking on/off R-Y / B-Y gain balance R-Y / B-Y angle RGB output normal/mute (testing) Align IF video level Description S-VIDEO Chrome input (testing) Select chrome BPF bypass(testing) analog / digital OSD FM gain ±50KHz /±25KHz FM de-emphasis Description ENGLISH OSD off/on ARABIC OSD off/on RUSSIAN OSD off/on TURKISH OSD off/on PERSIAN OSD off/on FRENCH OSD off/on Description Color system PAL Color system SECAM Sound system D/K Sound system B/G Sound system I Sound system M/N Description Emergency ABL defeat enable/disable Coring switch 0: enable /1:disable Black stretch defeat 0:on/1:off Bcorrection RG correction switch 0:off/1:on Description 7 0:off/1:on 0:off/1:on 0:off/1:on 0:off/1:on 0:off/1:on 0:off/1:on Color system NTSC3.58 0:off/1:on Color system NTSC4.43 0:off/1:on 50us/75us FM level adjust (1000mv±20mv)
DVD B-Y DC DVD R-Y DC V.RS TIME A2.SW A.MONI.SW S.TRAP.SW LA76810 OPTION MENU 17 CORE GAIN G-Y ANGEL C.KILL OP. RGB TMP. SW PRE/OV. SW P/O. SHOOT FSC/CSYNC LA76810 OPTION MENU 18 WPL OPE. VBLANK SW BLK. GAIN BLK. START DC. RESET Y GAMMA C. VCO SW C. VCO ADJ. LA76810 OPTION MENU 19 OVERMOD. SW OV. MOD LVL V.LVL OFFS HF TONE-DEF HALF TONE
8 8 0 0 1 1 Value 1 0 0 0 0 1 1 Value 1 0 2 3 0 0 0 0 Value 0 10 2 0 3
0 ...15 0 ... 15 0 , 1 0 , 1 0 , 1 0 , 1 Range 0 ... 3 0 , 1 0 ... 7 0 , 1 0 , 1 0 ... 3 0 , 1 Range 0 ... 3 0 , 1 0 ... 3 0 ... 3 0 ... 3 0 ... 3 0 , 1 0 ... 3 Range 0 , 1 0 ... 15 0 ... 3 0 , 1 0 ... 3
Cb input DC shift Cr input DC shift Vertical Reset timing A2 off/on Pin2 Audio out FM/Audio after Seitch Sound trap off/on (testing) Description Coring gain select off/1/2/3 G-Y demodulation angle 240/253 deg. Color killer operational level RGB DC output color temp. -1VBE/Flat Select Pre/Over-shoot adjustment Pre/Over-shoot width Description White peak limiter off/1/2/3 Vertical blanking normal/wide Black stretch gain Black stretch start point Select luma. DC restoration Y Gamma start point off/1/2/3 C.VCO adjust plus/minus Free run C.VCO frequency Description Over modulation test Over modulation operation point IF video output amplitude Half-tone on/off Adjust half-tone level Narrow ... Wide Pin22 output FSC/Composite sync
8
TV2KY CHASSIS SCHEMATIC DIAGRAM
+
SCART
VI FBI VO RI GI 9 8 SW BI 7 6 5 4 LI LO 3 2 RI RO 1
R504 2.7K XS402 C501 56p R501 100 R404 4.7 C409 0.1u 63V 1 R718 100K C410 470u 16V IC401 TDA1905 16 OUT VS GND GND R502 330 R503 680 C502 390p KB C503 56p R507 330 R506 100 R508 680 R509 2.7K Q512 2SC2482 D502 1N4148 R510 10K
2
Q501 2SC2482 D501 1N4148
CRT R505 10K
2
KR
C715 R709 6.8K Q703 2SC1815 R706 33K R717 33K Q704 2SC1815 R708 10K R707 47K Q702 R705 2SC1815 6.8K D702 1N4148 D701 1N4148 R704 33K R713 47K C703 1u 50V R711 33K R710 47K
KG
R716 220
21 20 19 18 17 16 15 14 13 12 11 10
10u 16V C716 R716 75 R702 75 R701 470 Q701 2SC1815 R715 220
+
+
2SC1815 R703 330 Q706 2SC1815 R712 33K V IN AV1 Q705 D703 1N4148 A IN2 A IN1 R731 75
1N4148
XS711
D704
SCART
V OUT
A OUT
+12V V IN2
V IN1
V IN2 A IN2
V IN1
A IN1
A IN
R714 15K
+12V
SEL V D401 IN4148 +12V SW003 SW002 SW001 D001 RED LED KEY +5V R051 2.2K R050 18K R049 27K R048 150K R047 1K HS0038 R209 100
R402 150
SYS
ADJ
R-Y OUT 4.43 IN
VCC
R210
V IN
ID
B-Y OUT SC IN
4M IN
4.7K
IR
+
16
15
14
13
12
11
10
9 C434 1u 50V R422 120K
Q401 2SA1015
4.43 FLT
KIL FLT
+5V
GND
2
D201 C219 8.2V 47u 16V IC202 LA7642N
4M FLT
FO FLT
ID FLT
IR
A0 A1 A2
VCC WC SCL
VT C003 0.1u 50V R042 33K R041 33K
CLK FBP FSC SECAM
AUDIO
+15V-1
R-Y IN
B-Y IN
C221 1u 50V
+
+
+
+
+15V
+12V RO GO BO
XS202
XP501
10u 16V
1
2
3
4
5
6
7
8
R400 15K
R428 2.2
R424 4.7K
R520 680
+
C509
R518 15K R519 1.5K
+
C510 10u 16V
+
GND SDA
IC001 53L1 1 R001 22K R002 22K R003 22K 2 3 4 5 6 R006 330K 7 8 C015 0.1u 9 47u 16V 10 UHF 50/60Hz SDA SCL GND XTAL1 XTAL2 VCC KEY IN AFT IN AC DET SCART RESET OSD FLT POWER HF-BLK V SYNC H SYNC R020 4.7K VL VH AV1 AV2 VT WOOF VOL L VOL R IR IN SYNC IN SECAM BUS OFF MUTE 4.5 SIF OSD FB OSD B OSD G OSD R 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
R046 22K R045 22K
C222 C223 C225 C224 1u 50V 1u 50V 0.01u 1u 50V V OUT A IN
B-Y IN
R-Y IN
SEL V
FSC
+5V-1
+5V-1
V IN
0.1u 50V C002
R044 22K R043 22K R038 33K C001 220p R035 22K R034 22K R036 22K
R040 33K +33V R039 33K Q001 2N3904 C245 R037 39K 1u 50V R226 1K R221 1K C242
R222 1K
C237 1u 50V
C236 0.1u
1u 50V
+
R215 1K C220
CLK
R219 47K R214 1K C232 18p C231 X201 4.43MHz C228 0.1u C229 10u 16V 47u 16V
C217 0.1u 1K R212
PUMP OUT
C006 32.768K 18p C007 18p +5V KEY C014 0.1u R053
R004 22K
VCC2
R224 330
C240 22u 16V
R225 330
C239 0.47u 50V
X001 C005 10K
+
0.47u 50V C241
C230 10u 16V
+
R227 4.7K
C238
+
C234 0.47u 50V
CCD FLT
CCD VCC
SECAM R-Y IN
SECAM B-Y IN
APC1 FLT
SIF APC FLT
VEDIO OUT
SCART R009 4.7K D002 3.9V R010 270K
R007 22K R016 1.5K Q002 2SA1015 R015 8.2K C008 2.2u 50V
11 12 13
R029 22K R033 22K R032 22K R031 22K R030 22K R022 3.3K R023 4.7K R025 4.7K R028 4.7K R026 4.7K R024 4.7K R027 4.7K
SELT V OUT
VCO COIL
VCO COIL
V/C/D VCC
APC2 FLT
EXT A IN
CLK OUT
EXT V IN
VCO FLT
VCO REF
FSC OUT
SIF OUT
BLK FLT
APC FLT
INT V IN
FBP IN
SIF IN
XTAL
GND
GND
AFT +5V
SECAM BUS OFF IC201
+25V H AFC FLT RAMP FLT
1
RGB VCC
AFT OUT
R317 1 H OUT C302 220u 35V V PLUS R323 5.6K
+
VIF VCC
PIF AGC
FM OUT
RF AGC
VIF IN1
VIF IN2
FM FIL
R011 330
C013 0.1u 14 15 16 17 18
4.7K
SYNC
FB IN
R052
GND
G IN
SDA
ABL
R IN
B IN
SCL
LA76810A +5V FB B G R R021 3.3K V SYNC H SYNC C201 0.01u
H VCC
A OUT
G OUT
V OUT
R OUT
B OUT
1
2
3
4
5
6
7
C010 0.1u
C011 0.1u
R230 100
R231 100
1u 50V
+
+
C012 0.1u
8 C205 C207
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
C009 1u 50V
+
C2020.022u C2030.022u C204 0.1u
3 5 4
0.1u C206 100u 16V
C215 0.015u 63V C209 0.1u C213 4.7u 50V C212 0.47u 50V
R205 4.7K
C301 1000p 1 R325 270
R306
R201
R012 10K R013 10K R014 10K R018 10K R017 10K
3.3K
C248 1u 50V
D202 1N4148 R217 47K
R228 2.2K
+
C210
+
+
R203 100K
R204 220
C208 0.1u
C406 10u 16V R403 10K
+
R202 100K
1
+
1
R309 10K Q003 2SC1815 Q005 2SC1815 Q006 2SC1815 R019 10K
R313 150K R320 56K
SAW201 F3826 C109 0.1u
2
47u 16V
D302 RGP15J
R312 1K D306 IN4937 R326 180K R327 2.7
2
L202 10uH +5V-1
+12V RO BO GO SYNC V PLUS
AUDIO
A OUT
H OUT
AFT SDA SCL +5V-1
+5V-1
+12V
R216 1.2K ABL R G B FB
C211 0.22u 50V
R229 270
C214 C247 100u 0.1u 16V H SYNC FBP
C312 2.2u 160V
+
R31210K C311 0.47u 250V
L301 39uH
IF
C321
22p STD BY IC601 H11A817
AGC
R322 10K
R3211K 3 D307 8.2V
C603-C606 1000p 1KV
D603-D607 1N4007
Q609 B892 C607 100u/400V T611 R620 120K R621 120K R625 6.8 D634 RGP15D C634 680p 500V
2
C635 0.1u
IC601 7812
V in V out GND
C639 47u/16V C636 0.1u
+12V R644 10 R645 47 +5V-1 TUNER AGC
2 2
C605 D605 D603 C603 R602 5D11
+
ABL +25V
R304 3.3K D305 RJP15J C310 220u 35V R318 1
1
+
15
R642 15K R643 27
2
AGC VT
+
C315 470p 500V
VT 0.1u 63V C102 C101
IC602 7805 C637 0.1u
+
5
9 17
+
V in
V out GND
+
C640 47u/16V +15V-1 +15V
R101 82K
R102 15K
+110V
C645 2200u/25V
C606 D606 D604 C604 C602 0.1u 250V R611 5.6K RT601 MZ72-18 T601 ET2448 R619 22 C641 0.1u Q611 D617 2SA1015 ES1 D619 XS602 11V R626 2.2K D616 1N4148 R617 1K L601 XS601 XP601 SW602 DEGAUSSING COIL R623 2.7K C615 R615 0.01u 22K XS600 AC230V C629 2200p 400V R629 12M 1/2W 50Hz R624 39
2
C642 220u/16V
C638 0.1u
BS0 BS1
2.2u 50V
BS0 BS1 VCC
+25V D304 1N4007 +15V-1 R302
1
C613 4700p
D614 1N4148
R622 15K
C616 1000p 2KV
C320 22u 160V
+
R647 1K Q613 2SC4429
+5V-1
R609
2
+5V D630 5.1V
+
C104 10u 16V +12V C105 10u 16V
+
C106 47u 16V
+
150
+
C643 470u/16V L600 100uH
C601 0.22u 250V F601
C617 2SC3807 Q612 0.015u
L101 8.2uH
8 2
16 13
D631 RG2 C631 470P C641 100u/160V R638 27K R640 R635 100K Q631 2SC1815 VR631 2K R639 12K R636 5.6K D641 6.2V R637 100K R684 150K R689 22K R688 10K R686 150K
2
68
R330 1
+110V +33V IF
R107 100 R111 220
R110 4.7K
D303 1N4007
+
15K D626 33V
+
C659 1uF/50V Q101 2SC2216 C107 0.1u R109 22 R108 1.2K
IF
H OUT R305 1K Q301 2SC2383
R301 1K C309 1000p 500V
T301 JDT1924 C308 1000p 500V Q302 ST1803DFH
9 3
Q686 2SA1015
R687 270K
Q004 2SC1815 STD BY
R103 100
C685 Q685 1u D685 6.2V 2SC1815 50V
+
1. IS MARK OF CRITICAL COMPONENT 2.SUBJECT TO CHANGE WITHOUT NOTICE
+
IR SYNC
L201 15uH
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
C218 0.1u 37 36
35
34
33
32
31
30
29
28
D301 1N4007
C303 100u 35V
+
+
+
C243 39p
C703 1u 50V
4.7u 50V
+
+
C244 18p
R223 560K
C233 0.1u
1
IN
18p
R220 22K
IC301 STV9302A +12V V SYNC R324 10K
2
3
4
5
6
VCC1
GND
OUT
+
7
NON IN
T201 ST6019
C235 47u 16V
R211 1K
FBP
IC002 24C08
+
C701 1u 50V
C704 22u 16V
+ +
1u 50V
XP703 XS701
R009 6.8K
C702 22u 16V C401 R206 220 R401 2.7K C403 4.7u 50V
15
+
+
+
+
47u 16V C402
2.2u 50V 6
2 3
14
BOOTSTRAP GND THRESHOLD GND MUTE IN SVR NON IN GND GND GND GND
C511 2200p 2KV
+
4 5 7
13 12 11
C506 390p R514 2.7K Q503 2SC2482 R515 10K
2
C505 56p
+ +
10
+
R425 100K C404 R406 100u 16V 22K
R512 330 R511 R513 100 680 Q505 2SA1015
D503 1N4148 Q504
C507 2SC1815 0.47u 50V
+
C407 0.22u 50V C405 4700p
8
9
+
+
C503 390p R516 10K D504 1N4148 C508 470u 16V R517 39
C408 C417 470u 25V 0.1u
VCC T3.15A 250V
SDA SCL
AV1 BS0 BS1
XP502 XS302
+
+
R213 1K C227 C226 0.1u 0.1u
C307 1u 50v R316 2.7K
C216 0.1u
+
+
C319 0.1u 63V
C304 R314 2.2 R315 0.1u 63v 330 V DY R328 12K R310 39K C306 4.7u 50V
+
R307 12K C305 1000u 25V R308 1K
+
XS301
+
+
H DY C317 10u 250V
7
1 2
2 5
+
1
4 5 6 11
4
1
6 T302 BSC24-01N40TA5 R303 1K C316 0.1u 63V C314 0.01u 1.6KV