ページ1に含まれる内容の要旨
TV-A2115 KE
SERVICE MANUAL
COLOR TELEVISION
• This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No. 09-003-429-9T1).
• This Service Manual does not include “DISASSEMBLY INSTRUCTIONS” and
“ADJUSTMENT”. These items will be issued in the next Supplement.
S/M Code No. 09-005-429-9R1
REVISION
DATA
ページ2に含まれる内容の要旨
SPECIFICATIONS Tuner System Frequency synthesized tuner TV System PAL (B/G, D, K) SECAM (B/G, D/K, K1) NTSC Channel Coverage VHF: E2 to E12, R1 to R12 UHF: 21 to 69 CATV: S1 to S41 Program Memory 100 TV stations Antenna Input 75 ohms, unbalanced Picture Tube 21" Screen Size 406 (W) X 305 (H) mm 1 (16 x 12 / in.) 8 508 mm (diagonal) (20 in.) Video Input/Output 1 Vp-p 75 ohms Audio Input -8dBs., more than 33 kohms Audio Output -8dBs., less than 2.2 kohms 3 3 Speaker 60 X 120 mm : (2 / X 4 / in.) 8
ページ3に含まれる内容の要旨
NOTICES BEFORE REPAIRING To make the best use of this equipment, make sure to obey the following items when repairing (or mending). 1. Do not damage or melt the tunicate of the leading Insulation resistance: 6.0 to 10 MΩ (500 V/s) wire on the AC1 side, including the power supply Voltage-withstand: 1.0 KV for 1 minute cord. 2. Do not soil or stain the letters on the spec. inscription plates, notice labels, fuse labels, etc. Safety checker (Model 7110, etc.) 3. When repairing the part extracted
ページ4に含まれる内容の要旨
ELECTRICAL MAIN PARTS LIST REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION NO. NO. IC C101 87-010-404-080 CAP, ELECT 4.7-50V C102 87-018-134-080 CAPACITOR,TC-U 0.01-16 8A-JEH-651-010 IC,TMP87CP38N C103 87-010-384-080 CAP, ELECT 100-25V 87-A21-133-080 IC,BMR-0101D C104 87-018-134-080 CAPACITOR,TC-U 0.01-16 87-A91-538-010 RCR UNIT,SBX1981-72P C105 87-010-384-080 CAP, E 100-25 SME 87-A21-
ページ5に含まれる内容の要旨
REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION NO. NO. C609 87-010-386-080 CAP,E330-25 SME D801 87-A90-965-010 VRIS,TNR15G471K C610 87-016-217-080 CAP,E 4.7-160 F801 87-035-458-010 FUSE,4A 250V T W/C ! C611 87-A10-043-010 CAP,PP 0.56-200 PH FB1 87-003-320-080 F-BEAD,FBR07HA121NB C613 87-A10-625-090 CAP,M/P 0.0082-1250 J FB501 87-003-320-080 F-BEAD,FBR07HA121NB C614 87-012-396-090 CAP,CER 820P-2K K BN DE
ページ6に含まれる内容の要旨
REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION NO. NO. ! THP801 87-A90-759-010 POS-THMS,PTH451C272BF300N270 C479 87-010-247-080 CAP, ELECT 100-50V TU101 87-A91-495-010 TU UNIT, ENV59D58G3-38.0MHZ C480 87-010-388-080 CAP ELECT 1000-25V SME X1 87-030-300-080 VIB,XTAL 8.00MHZ C481 87-010-388-080 CAP ELECT 1000-25V SME X301 87-A70-054-080 VIB,XTAL 4.43MHZ AQC-1018 C482 87-010-401-080 CAP, ELECT 1-50V C483 87-010-
ページ7に含まれる内容の要旨
TRANSISTOR ILLUSTRATION E C B S D G E C B E C B 2SA950 2SJ460 2SC3467 2SA1175 2SA1015 2SK2541 2SC2785 DTC144ES 1. SENSE 2. COLLECTOR 3. GROUND B C E 1 2 3 E C B E C B 2SD2333 SE115N 2SC3779 DTC323 E C B 2SC2688 – 7 –
ページ8に含まれる内容の要旨
WIRING - 1 (MAIN) 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H I J K L M N O P Q R S T U – 8 –
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SCHEMATIC DIAGRAM - 1 (MAIN) – 9 –
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WIRING - 2 (AUDIO) 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H I J K L M N O P Q R S T U – 10 –
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SCHEMATIC DIAGRAM - 2 (AUDIO) – 11 –
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WIRING - 3 (NK) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H I J K L M N O P Q R S T U – 12 –
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SCHEMATIC DIAGRAM - 3 (NK) – 13 –
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IC BLOCK DIAGRAM – 14 –
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– 15 –
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IC DESCRIPTION IC, TMP87CP38N Pin No. Pin Name I/O Description 1 VSS – Connected to GND. 2 POWER O During standby mode, "H" level is inserted to switch off H deflection & high voltage. 3 SIF A O SOUND IF switch A. 4 SIF B O SOUND IF switch B. 5 BBE O BBE select. 6 Q SUR O Q SURROUND switch. 7 N RESET O NICAM RESET ("L" = reset). 8 BBS O BASS BOOST / S-WOOFER. 9 VOL Not used. – 10 EXT I External bus switch. 2 11 SCL1 O I C bus CH1 clock. 2 12 SDA1 I/O I C bus CH1 data. 13 H SYNC I Sync signal in
ページ17に含まれる内容の要旨
IC, TB1240AN Pin No. Pin Name I/O Description 1 AFT OUT O The terminal for AFT output and self-adjust output. 2 A OUT O Audio output pin. 3 IF VCC – VCC of PIF circuit. 4 SIF IN I SIF input pin. (Not used) 5 IF GND – GND of PIF circuit. 6 IF IN I IF signal input. 7 IF IN I IF signal input. 8 RF AGC O RF AGC output. 9 IF AGC – The terminal to be connected with an IF AGC filter. 10 APC FIL – APC filter of chroma for demodulation. 11 XTAL I 4.43MHz crystal oscillator. 12 Y/C GND – GND of Y/C circui
ページ18に含まれる内容の要旨
Pin No. Pin Name I/O Description 43 SYNC IN I Input of the synchronous separation circuit. 44 BLK DET – The terminal to be connected with an Black Det filter. 45 C IN I Input of chroma signals. 46 Y/C VCC – VCC of Y/C circuit. 47 IFDET OUT O Composite video signal and SIF signal detected in IF circuit. 48 LOOP FLTR – Loop filter for IF PLL. 49 VCO GND – GND of VCO and SIF circuit. 50 VCO – The terminal connected with a tank coil for IF VCO. 51 VCO – The terminal connected with a tank coil for IF
ページ19に含まれる内容の要旨
VOLTAGE CHART REF NO. S D G REF NO. E C B Q2 0.2 5.1 1.0 Q404 0.2 0.2 0.3 REF NO. S D G REF NO. E C B Q3 5.1 1.2 4.1 Q407 0.2 0.2 0.0 REF NO. E C B REF NO. S D G Q101 1.2 0.5 8.9 Q408 0.0 11.1 0.2 REF NO. S D G REF NO. E C B Q409 0.2 0.2 4.8 Q104 1.6 9.0 2.2 REF NO. E C B REF NO. E C B Q105 3.6 0.0 2.9 Q414 8.9 0.0 9.1 REF NO. E C B REF NO. E C B Q106 3.6 9.0 4.2 Q501 0.0 4.5 0.2 REF NO. E C B REF NO. E C B Q108 2.9 9.0 3.6 Q554 2.0 0.0 1.3 REF NO. S D G REF NO. E C B Q109 0.0 0.8 0.0 Q551 2.8
ページ20に含まれる内容の要旨
REF NO. 1 2 3 REF NO. E C B Q802 114.7 92.5 0.0 Q911 7.4 2.4 6.8 REF NO. S D G REF NO. E C B Q803 0.0 0.1 4.5 Q912 1.8 9.0 2.4 REF NO. S D G Q804 4.5 5.1 4.6 IC1, TMP87CP38N REF NO. S D G PIN NO. VOLT (V) Q805 0.0 8.9 0.0 1 0.0 2~3 5.1 REF NO. E C B 4 0.0 Q806 4.8 0.0 5.7 5 0.0 6 5.1 REF NO. E C B 7~9 0.0 Q901 2.5 0.0 1.8 10~12 5.1 13 4.6 REF NO. E C B 14 5.1 Q902 0.0 9.0 0.9 15 0.0 16 2.6 REF NO. E C B 17 2.2 Q903 0.0 9.0 0.8 18 5.1 19 0.0 REF NO. E C B 20 0.7 Q904 0.0 2.5 0.1 21~25 0.0 26 4.2
