< TUNING > (without price) TV-1800C (PAL B / G,H) TV-1800D (PAL I) TV-1800I (PAL B / G) TV-1800N (PAL B / G,H) (KX-523) DEC. 1996 R
CONTENTS Page SPECIFICATIONS... 1 BLOCK DIAGRAM... 2 CIRCUIT OPERATIONS... 3 PRINTED CIRCUIT BOARDS... 4 PARTS LIST... 6 EXPLODED VIEW... 9 SCHEMATIC DIAGRAMS... 11 WAVEFORMS... 14
SPECIFICATIONS Item Specification 1. Power voltage DC 6.0 V 2. Power consumption Approx. 3.6 W 3. Current consumption Approx. 600 ma 4. Battery life (with alkaline batteries) Approx. 2.5 hours Batteries : 4 LR6 (D) size batteries 5. Power supply Car adaptor : CA-K65 AC adaptor : AD-K65 Earphone jack : 3.5 ø mini 6. Connection terminals External power jack : 6.0 V DC IN External antenna jack : 3.5 ø mini 7. Screen size 2.5 inches 8. No. of picture element 115,020 (540 213) dots 9. Dimensions 135 mm (H) 91 mm (W) 38 mm (D) 10. Weight 240 g without batteries AC adaptor : AD-K65 11. Options Car adaptor : CA-K65 Antenna matching device : AS-35S Model Color System TV System Channel TV-1800C/N PAL B/G, H CCIR VHF: 2 ~ 12 ch UHF: 21 ~ 69 ch TV-1800D PAL /I UK UHF: 21 ~ 68 ch TV-1800I PAL B/G ITALY VHF: A ~ H2 ch UHF: 21 ~ 69 ch 1
BLOCK DIAGRAM Antenna 1 TU200 2 Q200 Tuner IF Amp. 3 IC200 Video Sound Det. FM AFT Circuit AGC Circuit VR600 Volume 4 IC600 Speaker Audio Amp. 7 IC500 Tuning Voltage Generator 5 Chroma Circuit IC300 Common Driver LCD 6 IC700 Osc. Display A-D Converter Auto-Tuning Segment Driver Power Supply VCC2 (3.95V) VCC7 (41.6~51.6V) VEE1 (-6.5~-8.0V) VR800 Brightness 8 Q800~Q806 Display Voltage Generator 1 Color Tuner: TU200 TEPE5-01(TV-1800C/I/N) TU200 TEPB5-05(TV-1800D) Selects a desired radio wave and changes it to the video IF signal. 2 Video IF Amp.: Q200 2SC4238 Amplifies the video IF signal output from the tuner TU by 10 times (20 db). 3 Video Det./Sound Det./FM Det./AFT/AGC: IC200 M51348FP Eliminates the carrier wave in the video IF signal, and picks up the video signal and the sound IF signal. Also, the sound signal is picked up from the sound IF signal by FM detection. 4 Audio Amp.: IC600 NJM2070M Sound amplification. 5 Chroma Circuit: IC300 M52045FP Generates the tricolor (red, green, and blue) from the video signal. 6 OSC/A-D Converter/Display / Auto-Tuning : IC700 MSM662501 GSK-640E Converts the color signal into a digital signal. Also, generates the clock pulse for the display and controls the display. 7 Tuning Voltage Generator: IC500 MSC1169MS-K Generates the tuning voltage with the tuning pulse (TU) output from 6. 8 Display Voltage Generator: IC800 BA10358F, Q800 ~ Q806 Q810 Q811 2SD1149S, 2SD601A-R 3, 2SB709A-R Generates the display voltages V0 ~ V4 with VEE1 and VCC7 outputs from the power supply. 2
CIRCUIT OPERATIONS IC700 VSS2 TE2 TE4 TE6 TE1 TE3 TE5 M6 M5 M4 M3 M2 M1 AFT AD2 AD1 Test Mode AFT Key Switch KDB KCB AVB UHF B G R RLL VDD2 RHH A/D Test Circuit Channel bar Frequency Divider Sweep Tuning Tuning Voltage UP/DOWN Counter Pulse Width Modulation D/A Mute Synchronism Judgment MTB VLB TU M7 M8 Frequency Separator M9 M10 Mode Phase Comparator VDD1 C-S PD PSi VSS1 Display Data Output Vertical positioning Horizontal positioning Frequency Divider Oscillator OSC1 OSC2 D1 D2 D3 D4 D5 D6 CDB CFB CNB ECB SNB SCB STB HDB CK1 CK2 Signal Name Function Signal Name Function D1 ~ D6 Display data output terminal MTB Mute control terminal SNB Data latch signal TU Tuning control pulse output terminal CDB Scanning start signal VLB VHF High/Low channel select signal output terminal CFB Output voltage changeover signal UHF VHF/UHF select signal CNB Scanning signal shift lock signal AVB KCB Key input terminal KDB SCB Brightness modulation pulse control AFT AFT voltage input terminal STB Sampling start signal M1 ~ M10 Mode select signal input terminal ECB Signal input terminal controlling the TE1 ~ TE6 Test terminal segment drive terminal to "H" during no display CK1, CK2 Clock pulse output terminal R, G, B Original color OSC1 Oscillator frequency control terminal RLL "L" level voltage input terminal of OSC2 video signal PD Clock pulse adjustment terminal RHH "H" level voltage input terminal of video signal C-S Synchronizing pulse input terminal PS1 Mode control signal HDB Horizontal synchronizing signal input VSS1 Power supply voltage input terminal terminal VDD1 VDD voltage input terminal 3
4 T950 C951 C950 R950 L950 C927 C925 TU200 T100 C100 FU100 C309 JK100 D180 CN701 H300 R313 R342 C305 C306 R734 D705 R733 C760 R705 R738 C756 R719 C761 L705 C750 C755 R703 C741 R704 R726 R727 R725 R700 D703 R808 C700 C808 C806 D803 C810 C845 R825 R824 C831 C832 VR800 VR600 L202 R247 R133 R314 C112 C115 L101 C113 T201 T200 C110 L102 C105 SW100 CN700 C606 F201 F202 C210 C208 C205 C207 R222 C600 JK600 C603 F200 C236 R207 C202 JK200 R210 R209 C233 C751 F203 C836 R239 R718 PRINTED CIRCUIT BOARDS TOP VIEWS Linear Back Light
5 SW700 SW701 FU901 FU900 R246 C261 D500 C263 C262 C264 R230 C257 R241 R550 R541 R223 R236 R224 C259 R212 C245 C246 R215 C243 R202 L200 R204 C237 Q200 R205 R203 R201 C234 R502 R501 R500 CP204 R101 D100 Q100 Q101 R102 R103 C550 C545 R545 R111 R115 C140 C145 R117 Q111 D150 R311 L700 C776 R730 R810 R809 Q802 R819 R833 Q806 Q805 D805 R827 R830 Q804 C830 R229 R641 R610 R611 C642 R615 R645 R208 C240 C135 C265 C235 HP200 C249 R606 R607 IC800 IC600 IC200 IC700 R312 CP700 VR700 CP703 IC300 VR100 IC500 CP240 CP245 C630 Q811 Q810 R822 R821 C840 R820 R834 R835 R836 R740 C185 R330 R331 C350 C351 R325 C346 R322 C345 R343 R307 VR301 C347 R305 R306 C291 C290 CP221 C742 C740 D700 Q803 Q801 Q800 R816 R815 R817 C835 C765 VR200 C239 R503 R150 D155 D152 R310 C340 R326 R335 R336 Q300 C335 C301 VR300 + C146 C339 BOTTOM VIEWS Linear Back Light
LINEAR PCB PARTS LIST Item Code No. Parts Name Specification Applicable Q R Diodes D100 2390 1176 Chip diode MA152WK-(TX) TV-1800 Common 1 C D150 2390 1176 Chip diode MA152WK-(TX) TV-1800 Common 1 C D152 2390 1176 Chip diode MA152WK-(TX) TV-1800 Common 1 C D155 2390 1302 Chip diode MA153A-(TX) TV-1800 Common 1 C D180 2390 2450 Chip diode SC016-2-TE12RA TV-1800 Common 1 C D500 2360 1344 Chip zener diode MA3330-M(TX) TV-1800 Common 1 C D700 2390 0469 Chip diode MA157A-(TX) TV-1800 Common 1 C D703 2390 0469 Chip diode MA157A-(TX) TV-1800 Common 1 C D705 2390 1358 Variable diode MA329-(TX) TV-1800 Common 1 C D803 2390 0469 Chip diode MA157A-(TX) TV-1800 Common 1 C D805 2390 1253 Chip diode MA152WA-(TX) TV-1800 Common 1 C Fuse FU100 3632 0245 Fuse ATSCR0.80A TV-1800 Common 1 B ICs IC200 2114 1827 Linear IC M51348FP-T1 TV-1800 Common 1 C IC300 2114 3311 Linear IC M52045FP-T1 TV-1800 Common 1 C IC500 2114 2842 Linear IC MSC1169MS-KR1-620 TV-1800 Common 1 C IC600 2114 2464 Linear IC NJM2070M-T1 TV-1800 Common 1 C IC700 2011 2695 LSI MSM6625-01GSK-640E TV-1800 Common 1 C IC800 2116 0119 OP AMP BA10358F-T1 TV-1800 Common 1 C Jacks JK100 3501 6846 Jack HEC2500-010110 TV-1800 Common 1 C JK200 3501 5439 Jack HSJ1456-01-210 TV-1800 Common 1 C JK600 3501 5439 Jack HSJ1456-01-210 TV-1800 Common 1 C Transistors Q100 2210 8026 Chip transistor 2SB709A-R(TX) TV-1800 Common 1 B Q101 2230 7011 Chip transistor 2SD601A-R(TX) TV-1800 Common 1 B Q111 2253 0308 Chip transistor 2SD1119-R(TX) TV-1800 Common 1 B Q200 2252 0707 Chip transistor 2SC4238-(TX) TV-1800 Common 1 C Q300 2210 8026 Chip transistor 2SB709A-R(TX) TV-1800 Common 1 C Q800 2230 7011 Chip transistor 2SD601A-R(TX) TV-1800 Common 1 C Q801 2210 8026 Chip transistor 2SB709A-R(TX) TV-1800 Common 1 C Q802 2230 7011 Chip transistor 2SD601A-R(TX) TV-1800 Common 1 C Q803 2230 7011 Chip transistor 2SD601A-R(TX) TV-1800 Common 1 C Q804 2230 7011 Chip transistor 2SD601A-R(TX) TV-1800 Common 1 C Q805 2253 0476 Chip transistor 2SD1149-S(TX) TV-1800 Common 1 C Q806 2230 7011 Chip transistor 2SD601A-R(TX) TV-1800 Common 1 C Q810 2210 8026 Chip transistor 2SB709A-R(TX) TV-1800 Common 1 C Q811 2230 7011 Chip transistor 2SD601A-R(TX) TV-1800 Common 1 C Switches SW100 3412 0938 Slide switch ESD-11V231 TV-1800C/I/N 1 C SW100 3412 1134 Slide switch ESD-11V221 TV-1800D 1 C Converter T100 3065 0469 DC-DC converter LC12U-31 TV-1800 Common 1 B Tuners TU200 1013 5315 Tuner TEPE5-01 TV-1800C/I/N 1 C TU200 1014 8570 Tuner TEPB5-05 TV-1800D 1 C Variable resistors VR600 2765 0616 Volume RK09H11T-10KB TV-1800 Common 1 C VR800 2765 1582 Volume RK09H11T-100KB TV-1800 Common 1 C Notes: Q Quantity per unit R Rank 6
BL PCB Item Code No. Parts Name Specification Applicable Q R Lamp LA900 3851 1484 Fluorescent lamp 8.76AD1P2-CA11 TV-1800 Common 1 A Fuses FU900 3632 0308 Temperature fuse EYP-1BF102L TV-1800 Common 1 C FU901 3632 0308 Temperature fuse EYP-1BF102L TV-1800 Common 1 C Transistors Q950 2253 0287 Chip transistor 2SD965-R TV-1800 Common 1 B Q951 2253 0287 Chip transistor 2SD965-R TV-1800 Common 1 B Switches SW700 3412 1029 Switch SKHHAL TV-1800 Common 1 C SW701 3412 1029 Switch SKHHAL TV-1800 Common 1 C Transformer T950 3012 1001 Inverter trans NT-04 TV-1800 Common 1 B Notes: Q Quantity per unit R Rank 7
MAIN COMPONENT Item Code No. Parts Name Specification Applicable Q R 1 6611 6560 Display plate CIM-K523 K440953-2 TV-1800C 1 C 1 6611 6670 Display plate DAM-K523 K440953-3 TV-1800D 1 C 1 6611 6580 Display plate NAM-K523 K440953-4 TV-1800I/N 1 C 2 6600 2220 Adhesive tape A-K52 K451-5 TV-1800 Common 2 X 3 6608 7271 Adhesive tape B-K502 K410903A-2 TV-1800 Common 2 X 4 6609 9680 Jack cover A-K611 K340237-1 TV-1800D/I/N 1 X 5 6608 6560 Switch knob A-K526 K311299-1 TV-1800 Common 1 X 6 6611 6521 Upper case CIM-K523 K110681A-8 TV-1800C/N 1 X 6 6611 6531 Upper case DAM-K523 K110681A-9 TV-1800D 1 X 6 6611 6541 Upper case IAM-K523 K110681A-10 TV-1800I 1 X 7 3831 0854 Speaker 28-8F-03 TV-1800 Common 1 C 8 6608 6330 Tuning button A-K526 K311318-1 TV-1800 Common 1 X 9 6608 6340 Ribbon K526 K411841-1 TV-1800 Common 1 X 10 6608 6301 Battery spring C-K526 K311313A-1 TV-1800 Common 2 X 11 6608 6311 Battery spring D-K526 K311314A-1 TV-1800 Common 1 X 12 6611 6610 Side case A-K523 K110691-2 TV-1800 Common 1 X 13 6610 9432 BL ass'y K211111B*1 TV-1800 Common 1 B 13-1 3851 1484 Fluorescent lamp 8.76AD1P2-CA11 TV-1800 Common 1 A 13-2 3632 0308 Temperature fuse EYP-1BF102L TV-1800 Common 2 C 13-3 6608 0170 Flat cable A-K541 K411565-1 TV-1800 Common 1 C 14 6608 6360 Battery spring A-K526 K311321-1 TV-1800 Common 1 X 15 6608 6370 Battery spring B-K526 K411830-1 TV-1800 Common 1 X 16 6611 6483 Linear PCB ass'y K340720*2 TV-1800C/I/N 1 B 16 6611 6484 Linear PCB ass'y K340720*3 TV-1800D 1 B 17 3851 1463 Rod antenna VR60114FA TV-1800 Common 1 C 18 6611 6600 Lower case BIM-K523 K110682-4 TV-1800C/D/N 1 X 18 6611 6640 Lower case IAM-K523 K110682-5 TV-1800I 1 X 19 6611 6620 Battery cover A-K523 K211023-2 TV-1800 Common 1 X 20 6611 2300 Stand A-K503 K310518-7 TV-1800 Common 1 C 21 6611 6670 Rating plate DAM-K523 K440954-4 TV-1800D 1 X 22 6611 6491 Display unit K340722*1 TV-1800 Common 1 C 23 5860 2380 Screw PS3 1.7X3.5 Bk TV-1800 Common 2 C 24 5860 0420 Screw BT3 1.7X4 Ni TV-1800 Common 7 C 25 5860 1449 Screw BT3 1.7X8 Bk TV-1800 Common 5 C 26 6605 0011 Screw A-K334 K410096A-1 TV-1800 Common 1 C Notes: Q Quantity per unit R Rank 8
EXPLODED VIEW 3 1 5 2 3 2 6 4 23 7 11 8 12 13 10 9 24 13-1 22 24 25 13-3 13-2 15 14 24 16 24 24 17 18 25 26 19 20 25 21 9
LINEAR (TV-1800C/I/N) SCHEMATIC DIAGRAMS External Antenna Jack Antenna 2 3 Earphone Jack Speaker 1 Audio Amplifier Circuit 13 Tuner IF pad IF detection Circuit Batteries DC in Power Switch To Back Light Display Voltage Generator Circuit 11 Tuning Voltage Generator Circuit 12 10 9 4 8 14 To LCD 7 6 5 Power Supply Circuit Chroma Circuit Display ler Circuit 11
LINEAR (TV-1800D) External Antenna Jack Antenna 2 3 Earphone Jack Speaker 1 Audio Amplifier Circuit 13 Tuner IF pad IF detection Circuit Batteries DC in Power Switch To Back Light Display Voltage Generator Circuit 11 Tuning Voltage Generator Circuit 12 10 9 4 8 14 To LCD 7 6 5 Power Supply Circuit Chroma Circuit Display ler Circuit 12
BACK LIGHT 13
WAVEFORMS 600 mv 63.5 µs 63.5 µs 63.5 µs 3.2 V 10 V 112 mv 1 Q200 Collector 2 IC200 Pin 19 3 IC200 Pin 18 0.9 V 0.8 V 2.0 V 3.0 V 0.24 µs 63.5 µs 63.5 µs 4 IC300 Pin 23 5 IC300 Pins 10, 11, 12 6 IC300 Pin 5 7 IC300 Pin 4 0 Q111 Base 63.5 µs 63.5 µs 5.6 µs 5.6 µs 600 mv 4.0 V 8 IC300 Pin 1 100 ns A IC700 Pin 17 2.8 V 3.2 V 600 mv 9 Q111 Collector 360 ns B IC700 Pin 14 2.8 V C Q806 Base 130 µs 63.5 µs D IC700 Pin 12 14
MA0200471A