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Toshiba 34HF84 Schematic Diagram

Toshiba 34HF84 Schematic Diagram

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SCHEMATIC DIAGRAM
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 =
Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in µ F, and
2. CAPACITOR
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
MODEL : 34HF84
±
±
10%
G =
2%
F =
Electolytic capacitor
" have special characteristics, and should be replaced with identical parts only.
" in the schematic diagram and the parts list designate components
1%
Mylar capacitor
±
20% except H.V.
1/2S = Carbon compsistion of 1/2 watt
10W = Cement of 10 watt

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Summary of Contents for Toshiba 34HF84

  • Page 1 SCHEMATIC DIAGRAM MODEL : 34HF84 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 SCHEMATIC DIAGRAM STRUCTURE: ..........................1/52 (1/3) [SHEET-1/3] ....2/52 (2/3) [SHEET-2/3] ....3/52 (3/3) [SHEET-3/3] ....4/52 MICON (1/8) [SHEET-1/8] ....5/52 (2/8) [SHEET-2/8] ....6/52 (3/8) [SHEET-3/8] ....7/52 (4/8) [SHEET-4/8] ....8/52 (5/8) [SHEET-5/8] ....9/52 (6/8) [SHEET-6/8] ....10/52 (7/8) [SHEET-7/8] ....11/52 (8/8) [SHEET-8/8] ....12/52 G-Hyper (1/3) [SHEET-1/3] ....13/52 (2/3)
  • Page 4 CIRCUIT BLOCK DIAGRAM (POWER SUPPLY) T862 133V Deviation Circuit (D801) (SR81) Q801 Audio Circuit 26.5V STR-F6629B Degauss Relay Q832 Signal Processing Circuit 9VRegulator Q831 Signal Processing Circuit 5V-2Regulator Q838 (HDMI) 3.3V2Regulator Q833 Signal Processing Circuit 5V-3Regulator Q834 Signal Processing Circuit 5V-4Regulator (D811~814) T840...
  • Page 5 34HF84 (1/52)
  • Page 6 34HF84 BEP (1/3) SHEET-1/3 (2/52)
  • Page 7 34HF84 BEP (2/3) SHEET-2/3 (3/52)
  • Page 8 34HF84 BEP (3/3) SHEET-3/3 (4/52)
  • Page 9 34HF84 BEP (3/3) SHEET-3/3 34HF84 MICON (1/8) SHEET-1/8 (5/52)
  • Page 10 34HF84 MICON (2/8) SHEET-2/8 (6/52)
  • Page 11 34HF84 MICON (3/8) SHEET-3/8 (7/52)
  • Page 12 34HF84 MICON (4/8) SHEET-4/8 (8/52)
  • Page 13 34HF84 MICON (5/8) SHEET-5/8 (9/52)
  • Page 14 34HF84 MICON (6/8) SHEET-6/8 (10/52)
  • Page 15 34HF84 MICON (7/8) SHEET-7/8 (11/52)
  • Page 16 34HF84 MICON (8/8) SHEET-8/8 (12/52)
  • Page 17 34HF84 G-Hyper (1/3) SHEET-1/3 (13/52)
  • Page 18 34HF84 G-Hyper (2/3) SHEET-2/3 (14/52)
  • Page 19 34HF84 G-Hyper (3/3) SHEET-3/3 (15/52)
  • Page 20 34HF84 AD-CONVERTER (A) SHEET-1/3 (16/52)
  • Page 21 34HF84 AD-CONVERTER (B) SHEET-2/3 (17/52)
  • Page 22 34HF84 AD-CONVERTER (C) SHEET-3/3 (18/52)
  • Page 23 34HF84 TC90A92A-1 (19/52)
  • Page 24 34HF84 TC90A92A-2 (20/52)
  • Page 25 34HF84 GC-REG (21/52)
  • Page 26 34HF84 TC90A92A-3 (22/52)
  • Page 27 34HF84 GNESIS (1/3) SHEET-1/3 (23/52)
  • Page 28 34HF84 GNESIS (2/3) SHEET-2/3 (24/52)
  • Page 29 34HF84 GNESIS (3/3) SHEET-3/3 (25/52)
  • Page 30 34HF84 SDRAM (Gm6010) (26/52)
  • Page 31 34HF84 GNESIS OUT (27/52)
  • Page 32 34HF84 GNESIS REG (28/52)
  • Page 33 34HF84 (29/52)
  • Page 34 34HF84 (30/52)
  • Page 35 34HF84 Color Dec. (1/3) SHEET-1/3 (31/52)
  • Page 36 34HF84 Color Dec. (2/3) SHEET-2/3 (32/52)
  • Page 37 34HF84 Color Dec. (3/3) SHEET-3/3 (33/52)
  • Page 38 NORTH AMERICA COMMON JAPAN 34HF84 Connector (1/3) SHEET-1/3 (34/52)
  • Page 39 34HF84 Connector (2/3) SHEET-2/3 (35/52)
  • Page 40 34HF84 Connector (3/3) SHEET-3/3 (36/52)
  • Page 41 34HF84 AV_Terminal (BANKAN) SHEET-1/7 (37/52)
  • Page 42 1.0V(p-p)(H) 34HF84 AV_Terminal (Tuner/IF_TIF) SHEET-2/7 (38/52)
  • Page 43 34HF84 AV_Terminal (JACK) SHEET-3/7 (39/52)
  • Page 44 34HF84 AV_Terminal (V_SW) SHEET-4/7 (40/52)
  • Page 45 34HF84 AV_Terminal (A_SW) SHEET-5/7 (41/52)
  • Page 46 13.3 26.5 13.3 13.3 34HF84 AV_Terminal (AUDIO_OUT) SHEET-6/7 (42/52)
  • Page 47 34HF84 AV_Terminal (REG) SHEET-7/7 (43/52)
  • Page 48 34HF84 POWER/DEF (CONNECTOR) SHEET-1/6 (44/52)
  • Page 49 CH1/2 MEM1 MEM2 DEF/CONVER 20 V (Vertical) 10V/div 3.0 V 1V/div 5ms/div Length 10V/div 5ms/div Length Sampling 5ms/div Normal 20ksps 34HF84 Trigger Type :Simple Source :CH1 Record Length Mode :Auto Level :-34% CH1/2:1k Point :500 Edge :Rise POWER/DEF (EW&VERTICAL) SHEET-2/6...
  • Page 50 Sampling 10us/div 10us/div Normal Normal Normal Normal Normal 10Msps 10Msps 10Msps 10Msps 20ksps 10Msps 10Msps Marker 0.0us 3.04 Marker 34HF84 0.0us 3.04 3.04 0.0us 0.00 0.00 POWER/DEF (HORIZONTAL) Trigger Type :Simple Source Source :CH1 :CH1 Record Record Length Length Trigger...
  • Page 51 34HF84 POWER/DEF (PROTECTOR) SHEET-4/6 (47/52)
  • Page 52 34HF84 POWER/DEF (MAIN POWER) SHEET-5/6 (48/52)
  • Page 53 34HF84 POWER/DEF (SUB POWER) SHEET-6/6 (49/52)
  • Page 54 34HF84 CRT-D (50/52)
  • Page 55 34HF84 CONTROL (51/52)
  • Page 56 34HF84 (52/52)