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Toshiba 14JL7E Schematic Diagrams

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SCHEMATIC DIAGRAM
MODEL : 14JL7E/14JL7H/14JL7R/20JL7E/20JL7H/20JL7R
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY
PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL.
CAUTION: The international hazard symbols "
which have special characteristics important for safety and should be replaced only with types identical to those in the
original circuit or specified in the parts list. The mounting position of replacements is to be identical with originals.
Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE on the MANUAL for this
model. Do not degrade the safety of the receiver through improper servicing.
NOTE:
1. RESISTOR
Resistance is shown in ohm [K = 1.000, M = 1.000.000]. All resistors are 1/6W and 5% tolerance
carbon resistor, unless otherwise noted as the following marks.
1/2R = Metal or Metal oxide of 1/2 watt
1RF = Fuse resistor of 1 watt
±
K =
10%
2. CAPACITOR
Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in F, and
the values more than 1 in pF.
All capacitors are ceramic 50V, unless otherwise noted as the following marks.
3. The parts indicated with "
4. Voltages read with DIGITAL MULTI-METER from point indicated to chassing ground, using a color bar signal with
all controls at normal, line voltage at 220 volts.
5. Waveforms are taken receiving color bar signal with enough sensitivity.
6. Voltage reading shown are nominal values and may vary
SCHEMATIC DIAGRAM STRUCTURE:
– LCD Circuit
– DIGITAL Circuit
" in the schematic diagram and the parts list designate components
±
±
G =
2%
F =
1%
Electolytic capacitor
" have special characteristics, and should be replaced with identical parts only.
MAIN/SUB
– IR-AMP
INPUTS
– GM2221_1
– GM2221_2
– GM2221_3
– POWER
– DISPLAY
– 53 –
1/2S = Carbon compsistion of 1/2 watt
10W = Cement of 10 watt
Mylar capacitor
±
20% except H.V.
[ SHEET– 1/2 ] ..................................... 1/8
[ SHEET– 2/2 ] ..................................... 2/8
[ SHEET– 1/6 ] ..................................... 3/8
[ SHEET– 2/6 ] ..................................... 4/8
[ SHEET– 3/6 ] ..................................... 5/8
[ SHEET– 4/6 ] ..................................... 6/8
[ SHEET– 5/6 ] ..................................... 7/8
[ SHEET– 6/6 ] ..................................... 8/8

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  Summary of Contents for Toshiba 14JL7E

  • Page 1 SCHEMATIC DIAGRAM MODEL : 14JL7E/14JL7H/14JL7R/20JL7E/20JL7H/20JL7R WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. CAUTION: The international hazard symbols " " in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with types identical to those in the original circuit or specified in the parts list.
  • Page 2 – 54 –...
  • Page 3 – 55 –...
  • Page 4 MEMO – 56 –...
  • Page 5 C851 R854 16V1u C827 ZP03 2000 KETSU KETSU C823 Q854 BA05FP-E2 C821 L802 R857 35V470uF 2R150 LCD_MAIN/SUB (Low ESR) D803 C828 C826 SFPB-64V 10V680uF C854 C852 C853 14JL7E/14JL7H/14JL7R/20JL7E/20JL7H/20JL7R 220P SFPB-64 (Low ESR) 35V470uF 0.1uF 16V47uF 20JL7E/20JL7C LCD (MAIN/SUB) SHEET-1/2 (1/8)
  • Page 6 U901A ANALOG MAIN P496 P497 P498 P499 DIFFERENTIAL LIST UNIT 14/20JL7R 14/20JL7E/H RC12 SHORT RC13 SHORT RC14 SHORT R177 Q102 U901A RC15 SHORT 2SC2412K R109 RC16 SHORT C107 0.1uF RC17 SHORT R108 TRF9240AC SHORT LZ60 TP12 OPEN Q161 R110 TRF9240AC SHORT L642 DTC114EUA...
  • Page 7 13 14 H001 EC981W1 L109 TEM2130AM W-US GR03 OPEN C100 50V2.2 R104 R100 KETSU KETSU R105 W-EURO/ASIA 5.6k R607 R608 R620 R165 C633 C109 R102 50V2.2 1.8K C161 L160 R610 Q162 R621 2SC4081-Q 1.8K R163 C634 R622 50V2.2 6.8K C616 R173 R167 C617...
  • Page 8 P610A U901D PLUG 4P Q610 AN5277 HEADPHONE BD P661 AUDIO_GND HTJ-035-17A Q610A HEAT SINK D612 R624 D604 P611B D602 1/6P220 KETSU 05FE-BT-VK-N KETSU ROUT SPK D601 D603 L642 C642 KETSU KETSU LOUT LOUT R622 SHORT 6.8K C676 C677 16V470uF LOUT SPK D605 D606 50V0.1u...
  • Page 9 U901B KEY BD POWER NE BD P661 TSKB-2/JP HTJ-035-17A SA06 CH UP TSKB-2/JP SA01 CH DOWN R625 TSKB-2/JP 1/6P220 SA02 VOL UP TSKB-2/JP SA03 VOL DOWN TSKB-2/JP SA04 INPUT TSKB-2/JP SA05 P103B CFP2507-0101 connect to IR-AMP P108B P108A RA43 RA44 RA45 RA58 06FE-STK-VK-N...
  • Page 10 L116 RC14 TEM2121M SHORT CV03 16V10 PV03 RS07 CC09 B1000p L117 OPEN CC08 B1000p L118 RC13 TEM2121M SHORT RS06 CC07 L120 OPEN B1000p RC12 L119 RS05 SHORT TEM2121M PV05 MTJ-032-39BBA-432 NILF L121 CV11 RV14 OPEN PV07 B25V0.01 MDC-013V1-A LF E1-S RV31 RV30 L122...
  • Page 11 VinTV Yout RV92 CV03 RinTV 16V10 LinTV Cout MM1495XF QV01 M_LOUT M_ROUT 9V-2 ZP01 2000 AUD_VCC ZP02 5000 9V-2 5V-2 GR04 SHORT R828 D826 D827 D828 8.2k MA143A MA143A KETSU SI-8090JD C841 50V4.7 C836 C831 KETSU 0.01 C832 C834 C833 C835 0.01 0.01...
  • Page 12 R121 4.7k C200 Q104 16V100 PST9129NR C201 10V1u DA01 1SS355 GR38 SHORT L510 Q201 R200 2SC2412K 4.7K C212 16V10u R209 Q205 2SC2412K C561 R201 R207 GR01 B25V0.01 4.7K OPEN C560 R202 C214 16V100 4.7K RJ01 R205 OPEN R206 4.7K Q202 R203 2SC2412K C213...
  • Page 13 KETSU (10P L-TYPE) C451 KETSU C_OUT R207 VIDEO GR48 C214 OPEN L208 TEM2028AH GR50 GR49 OPEN OPEN L209 12P L-TYPE TEM2028AH P106 GR51 OPEN VDIM ON/OFF 20JL7C 7PL-TYPE P104 C451 25V470 VDIM INVERTER ON/OFF 14JL7C LCD_MAIN/SUB 14JL7E/14JL7H/14JL7R/20JL7E/20JL7H/20JL7R 20JL7E/20JL7C LCD (MAIN/SUB) SHEET-1/2 (1/8)
  • Page 14 D997 MA8062-M DB01 BL-HGK34C-TRB GREEN LED C998 50V0.022u D998 MTZJ3.6A RED LED DB02 BL-HUB34C-TRB C999 50V0.022u D999 MTZJ3.6A DB04 KETSU BLUE LED 6FE-BT-VK-N P108B connect to P108A in main unit LCD_IR-AMP 20JL7 14JL7 14JL7E/14JL7H/14JL7R/20JL7E/20JL7H/20JL7R 20LB20 20JL8 LCD (IR-AMP) SHEET-2/2 (2/8)
  • Page 15 20JL7 14JL7 14JL7E/14JL7H/14JL7R/20JL7E/20JL7H/20JL7R 20LB20 20JL8 DIGITAL (INPUTS) SH.NO SHEET-1/6 (3/8)
  • Page 16 20JL7 14JL7 20LB20 20JL8 14JL7E/14JL7H/14JL7R/20JL7E/20JL7H/20JL7R DIGITAL (GM2221_1) SH.NO SHEET-2/6 (4/8)
  • Page 17 14JL7E/14JL7H/14JL7R/20JL7E/20JL7H/20JL7R DIGITAL (GM2221_2) SH.NO SHEET-3/6 (5/8)
  • Page 18 20JL7 14JL7 20LB20 20JL8 14JL7E/14JL7H/14JL7R/20JL7E/20JL7H/20JL7R DIGITAL (GM2221_3) SH.NO SHEET-4/6 (6/8)
  • Page 19 14JL7E/14JL7H/14JL7R/20JL7E/20JL7H/20JL7R DIGITAL (POWER) SH.NO SHEET-5/6 (7/8)
  • Page 20 14JL7E/14JL7H/14JL7R/20JL7E/20JL7H/20JL7R DIGITAL (DISPLAY) SH.NO SHEET-6/6 (8/8)

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