Sony FDL-PT22 инструкция обслуживания

SER VICE MANU AL MODEL COMMANDER DEST . CHASSIS NO . MODEL COMMANDER DEST . CHASSIS NO . FDL-PT22 US FDL-PT22/JE JE ∗ Please file according to model size. .... LCD COLOR TV 2.2[...]

– 2 – TV standerd American TV standerd Channel converage VHF : 2-13 UHF : 14-69 Antenna VHF/UHF strap antenna Display format Transmission type TN liquid crystal panel Drive format Passive matrix Picture 2.2 inches measured diagonally Output Headphones : minijack Impedance 8 - 45 ohms Power requirements 4.5 V DC Power consumption Approx : 2.9W S[...]

– 3 – Section Title Page Section Title Page 1. GENERAL ....................................................................... 4 2. DISASSEMBL Y 2-1. Cabinet Removal ..................................................... 6 2-2. Service Position ....................................................... 7 3. CIRCUIT ADJUSTMENTS 3-1. A Board Adjustme[...]

– 4 – SECTION1 GENERAL The operating instructions mentioned here are partial abstracts from the Operating Instruction Manual. The page numbers of the Operating In- struction Manual remein as in the manual. A a 2 2 2 2 2 1 1 1 1 1 AA(LR6) × 3 b DC IN 4.5V c Power Sources (see fig. A ) Alkaline Batteries Use Sony LR6 alkaline batteries (not supp[...]

– 5 – C VHF UHF e d c b a a Mixer b 75 Ω coaxial cable c Feeder d EAC-39 antenna cable (not supplied) e EAC-110 antenna cable (not supplied) External Antenna Connection (see fig. C ) Connect an antenna cord EAC-39 (not supplied) or EAC- 1 10 (not supplied) to the TV . This will improve the TV’s reception. T o EXT ANT[...]

– 6 – SECTION 2 DISASSEMBL Y 2-1. CABINET REMO V AL 1 Front cabinet assy 2 Channel button 3 B board 5 T board 4 A board 1 Screw (+P2 x 10) 7 Rear cabinet assy 8 Battery cover Claw 1. Remove battery cover 8 . 2. Push the two hooks in the lower section of the rear cabinet with a pint and the like to undo them. Hooks 3. While pressing the rear cab[...]

– 7 – 2-2. SERVICE POSITION Service cord 1-900-211-84 B board CN301 CN601 CN602 A board Service cord 1-900-211-84 T board CN201 Antena AC Power adapter AC-E45HG Mini jack J101[...]

– 8 – 3-1. A BO ARD ADJUSTMENT +4.5V ADJUSTMENT Measure the voltage between JL32 (4.5V) and JL33 (GND) with a digital voltmeter , and adjust R V601 so that the voltage will be as follows: <Specification> 4.45 ± 0.05VDC S601: UHF position CONFIRMA TION OF +30V Measure the voltage between JL29 (30V) and JL33 (GND) with a digital voltmeter [...]

– 9 – RF .A GC ADJUSTMENT (1) Input the VHF color bar signal from the test signal generator . (2) Adjust R V201 to optimum position so that there is no snow noise on the screen. CHANNEL DISPLA Y POSITION ADJUSTMENT (1) Set S601 in the VHF position. Insert resistors (47k Ω + 15k Ω ) between JL25 and JL77 (4.5V line), and short circuit JL21 a[...]

– 10 – 3-3. B BO ARD ADJUSTMENT - B BOARD - (COMPONENT SIDE) RV402 RV301 GRAD A TION ADJUSTMENT (1) Input a 10-step staircase signal from the test signal generator . (2) Connect an oscilloscope probe between JL83 (G) and JL67 (D. GND) and observe the waveform. (3) The contrast should change when R V402 is turned. (4) Connect the oscilloscope pr[...]

– 11 – – 12 – – 13 – – 14 – SECTION 4 DIA GRAMS 4-1. BLOCK DIA GRAM BS COMPOSITION 28 27 SELECT BAND BS U/V CONTROL TUNING BAND SELECT BT 26 GEN. BT RETURN AUTO INITIAL SET CHARGE/ DISCHARGE CIRCUIT DEFEAT OUTPUT DEFECT SIGNAL 3 HP 14 1 4 5 COMPARATOR 6 10 DEF FH H SYNC AFC SUD CS 18 UP UA 22 OUTPUT BA R V 30 U 31 BAR DISPLAY POSITI[...]

– 18 – – 17 – – 16 – – 15 – 4-2. CIRCUIT BOARDS LOCATION 4-3. PRINTED WIRING BO ARDS AND SCHEMA TIC DIA GRAMS Note: • All capacitors are in µ F unless otherwise noted. pF : µµ F 50WV or less are not indicated except for electrolytics and tantalums. • All electrolytics are in 50V unless otherwise specified. • All resistors a[...]

– 19 – – 20 – GND (SIF) DC F/B SIF IN Vcc (SIF) GND (VIF) IF IN IF IN Vcc (VIF) RF AGC DELA Y RF AGC OUT AGC FIL TER II AGC FIL TER I 13 A UDIO OUT 14 E-VDL 15 FM DET IN 16 LIMITER OUT 17 AFT OUT 18 VIDEO OUT 19 REF COIL 20 REF COIL 21 AFT COIL 22 SYNC SEP IN 23 SYNC OUT 24 12 11 10 9 8 7 6 5 4 3 2 1 IF AGC ADJ BUFFER IF AGC DET VIDEO AMP A[...]

– 21 – – 22 – 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 A B C D E F G H I J UNREG UNREG 30V 30V 4.5V AUDIO AUDIO VIDEO VIDEO VIDEO VIDEO 2 3 4 1 5 9 8 7 6 1 6 7 3 9 8 2 4 5 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 10 11 12 + - 1 2 3 4 5 6 7 8 9 10 11 12 1 2 T701 R613 D601 L601 RV601 C614 C612 R605 Q602 C604 R603 R602 R604 Q601 C601 C616 R615 D604 D605 C[...]

– 23 – – 24 – A B C D E F G H I 123456 7 – A BOARD – A AUDIO AMP, PC IN, BACK LIGHT NC 1 NC 8 V+ 2 +INPUT 7 OUTPUT 100k Ω 50k Ω 300 Ω 3 -INPUT 6 POWER GND 4 GND 5 BIAS + - A BOARD : IC501 NJM2070M DIODE * D406 G-5 6 D601 G-4 3 D602 D-4 5 D603 G-4 4 D604 C-5 3 D605 C-4 3 D701 D-3 – IC IC501 G-5 TRANSISTOR * Q401 G-5 1 Q601 C-4 2 [...]

– 25 – – 26 – 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 A B C D E F G H I J 4.5V 4.5V 4.5V 4.5V 4.5V 4.5V 4.5V 2 3 4 5 8 1 6 7 B B B G R R G G R VIDEO VIDEO 1 2 3 4 5 6 7 8 10 9 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 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[...]

– 27 – – 28 – A B C D E F G H I 123456 7 – B BOARD – B CHROMA, LCD INTERFACE Pin Volt Pin Volt Pin Volt IC301 1 3.0 2 3.1 3 0.6 4- 5 3.5 6 2.5 7- 8- 9 2.8 10 3.0 11 2.9 12 3.1 13 GND 14 0.3 15 - 16 - 17 1.5 18 3.7 19 1.6 20 2.0 21 3.4 22 - 23 2.0 24 4.2 IC401 1 1.3 20 3 0.8 4 0.8 5 2.7 6 2.7 7 2.8 8 2.8 9 3.3 10 1.9 11 3.9 12 3.9 13 0 1[...]

– 29 – – 30 – 4-4. SEMICONDUCT ORS A71-2980 32 pin QFP 1 TOP VIEW 1 TOP VIEW 1 TOP VIEW 24 pin SOP NJM2070M 14 8 2 7 3 65 8 pin SOP UN2110 UN211D UN2210 UN5210 2SB709A 2SC3837KQ 2SD601A E B C XN4215 XN4601 MA157 1SS226 1 2 3 1 2 3 1 2 3 1 2 3 MA8043 MA8240 MA8360 CATHODE ANODE 11EQS04 CATHODE ANODE M51348AFP M52045FP 1 2 3 6 5 4 5 4 6 3 1 2[...]

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