NEO TV-1563 free download

File name TV-2KR SERVICE.pdf

TV2KR - TXT COLOUR TELEVISION RECEIVER SERVICE MANUAL SECIFICATION · SYSTEM · POWER INPUT · POWER CONSUMPTION · AERIAL IMPEDANCE · TUNER · RECEIVING CHANNELS PAL/SECAM BG/DK/I AC 170-245(50/60Hz) 65W 75 OHM UNBALANCED FREQUENCY SYNTHESIZER TUNING VHF-L VHF-H UHF E2-S6 S7-S41 E21- E69 · PROGRAMME · PICTURE TUBE · SOUND OUTPUT · SPEAKER · AV JACKS MAX. 100 PROGRAM MEMORIES 14", 15", 20", 21"; 90° 2.0W 3W 8OHM FULL SCART X 1 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 24.5KV +/-2KV under 230V AC power source. The high voltage must not exceed 27KV. 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 oper

File name TV2KR-Schematic.pdf

TV2KR PAL/SECAM, BG/I/DK, MONO R1 15k X101 A_R_OUT A_L_OUT FB_GND G_GND SCART V_GNG V_GND V_OUT GND V_IN VT1 BF422 006 CRT1 GZS10-2-104 R2 390 om VT4 BF422 VT2 BF422 008 R3 15k 27 R4 390 om VT5 BF422 VT3 BF422 R5 15k VT6 BF422 R6 390 om R7 2.7k R8 2.7k R9 C1 + 2.7k 013 8 R to FRONT AV X102 C126 22n R145 4.7k 3 2 x3 1 R/SVHS_C 007 012 6 G B 25 R_GND A_R_IN B_GND A_GND A_L_IN S_SW 28 N.C. N.C. 002 014 11 FB G 005 009 B 26 IC102 21 20 19 18 17 16 15 14 13 12 11 10 HS0038A2 9 8 7 6 5 4 3 2 1 L107 fb.s 107 R108 R109 v.out GND OUT 20 1 2 3 L110 a.l.in a.r.in sw.s b.s 330 om 003 C12 330p 30 VT8 BF423 C13 330p 21 29 R10 + R12 330 om R14 330 om C14 330p 24 VT9 BF423 4.7 R103 75 om R107 75 om R102 10k R111 2.2k R105 N.C. N.C. 220 om 470 om HET_ R104 75 om HET G1 R112 220 om G2 R114 75 om R144 4.7k R115 R116 VD101 5.1v TT14 5 117 R110 3,3k a.s_in R113 12 9 10 7 L112 10uH 16 12 13 IC101 74HC4053 GND E_ 6 R121 2.7k 2 1 5 3 C111 + 47.0 C113 22n +5st.by C107 100p C108 47p 47p C112 C110 47p K101 R122 R11 001 0.33 om TT13 33k 560 om R117 R120 C114 0.47 a.s.in. +8a 47p OUT OUT OUT Vee SW SW SW 119 AV1/AV2 11 R119 47k 14 15 10 8 7 4 9 1 uH V_OUT G_SC R_SC A.S IN B_SC R123 100 om +5st.by KEY X4_ X4 27 uH A.OUT K103 + X201 X3 EXT.V.IN A_IN1 S.SW +5 LED +12 FB L101 22 uH +5st.by EXT_V.IN EXT_V.IN GND LED KEY A33EKC02X01 KS3300 A36EKM72X11 A48EKB02X01 A51EJJ04X01 b.out1 KS3610 KS4816 R206 100 om FB R208 100 om 100 om 5 4 3 2 1 C116 100n 100 om VT102 BC547 +8b R204 10k C210 203 +8c R129 100 om 470 om +5 231 229 123 R212 330 om +3a C207 to FRONT BOARD 204 VD202 C215 9.1v 230 201 R214 180 om C214 100.0 47p + 236 47p C218 + C219 100n 2.4v R216 10k C211 47n C216 100n C212 100n 100 om TPS 6.0 R217 27k 1n R220 360k 209 210 205 C217 C213 47n R219 390 om R215 10k F1 1 2 TU101 IF1 IF2 +30V NC +5V +5V SDA SCL NC NC AGC 11 10 9 8 100.0 100n 7 6 5 4 3 2 1 agc.tun +5.tun 124 135 XT1 47.0 ex.v.in int.v.in 202 r 46C220 47n i.cut 208 b.out g.out 228 K2955 IR 3 4 5 IF2 IF1 227 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 45 44 43 42 41 40 39 38 37 36 35 34 33 R228 SDA1 IR_ R221 100 om R225 100 om 12 mHz r.out b g I cutoff +3.3 V G out R out G/Y +3.3 V +3.3V B out FB VPE +8V IF_CVBS out A_out/AM out A_ext in/Qss_out XTAL out SVHS_chrom IF_pll RESET EXT_ CVBS/Y in INT_CVBS in P1.2/NT0 OSC_gnd B/U(b-y) GndTV1 P1.1/T0 XTAL in R/V(r-y) P1.0/INT1_ IR H_fb/SSC Hout EHT BCL 7 100 om 6 L104 1 uH 8 5 125 +30 VD103 C118 4.7 L105 22 uH R133 3.3k R134 3.3k + UPC574 10n Vcc + SCART-SW_(p3.3/adc3) TEST AV1/AV2(p3.1/adc1) 24C08W6 IC201 + KEY(p3.2/adc2) ON/OFF_(p1.3) +8 +5 SND_pll/SIFagc R130 27 om C121 100.0 DEC_sdem/SIFin2 MUTE_p3.0/adc0) V.tune(p2.0/pwm) AUD_dem/SIFin1 C119 22n SDA SCL REFO/AMout VH