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Toshiba 46HM84 Schematic Diagram
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SCHEMATIC DIAGRAM
MODEL : 46HM84/52HM84/62HM84
WARNING : BEFORE SERVICING THIS CHASSIS, READ THE "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 =
2. CAPACITOR
Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in µ 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
±
±
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 46HM84

  • Page 1 SCHEMATIC DIAGRAM MODEL : 46HM84/52HM84/62HM84 WARNING : BEFORE SERVICING THIS CHASSIS, READ THE “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 SCHEMA TIC DIAGRAM STRUCTURE: BACK AV Circuit (1/5) [ SHEET - 1/5 ] ..1/52 (2/5) [ SHEET - 2/5 ] ..2/52 (3/5) [ SHEET - 3/5 ] ..3/52 (4/5) [ SHEET - 4/5 ] ..4/52 (5/5) [ SHEET - 5/5 ] ..
  • Page 4 KTC2875B\\2SC3326B L_HDMI1 QV48 2SC1740S HDMI-1-L V_MONI GJ04 CV27 RV61 RV89 10V470u CV30 0.1uF RV85 CV29 VARIABLE 1/6P470 16V100 RV86 1/6P470 PV03 JACK 7P HDMI HM84 JACK7P PS01 HMX84 JACK9P PLUG 3P Black from HDMI 46HM84/52HM84/62HM84 BACK AV (1/5) SHEET-1/5 (1/52)
  • Page 5 5.6k R_HDMI1 ROUT3 RS17 CS17 B6.3V2.2u 5.6k L_HDMI2 RS18 RS27 CS18 B6.3V2.2u 5.6k R_HDMI2 SCL1 RS28 SDA1 RS29 L_MONI 6.8k R_MONI MUTE QS02 2SC4081-Q\\2SC4116Y RS33 RS32 BIAS RS30 2.2k 2.2k RS31 1.8k CS27 16V22 46HM84/52HM84/62HM84 BACK AV (2/5) SHEET-2/5 (2/52)
  • Page 6 25V0.1 QV91 2SA1576A RV22 V_TV2 V_TV2 RV23 2.2k Y_CS1 Y_CS1 PB_CS1 PB_CS1 PR_CS1 PR_CS1 Y_CS2 Y_CS2 PB_CS2 PB_CS2 PR_CS2 PR_CS2 VD_HDMI VD_HDMI VD_HDMI RV333 HD_HDMI HD_HDMI HD_HDMI PLUG 8P RV334 QV009 PV14 2SC4081-Q RV335 46HM84/52HM84/62HM84 BACK AV (3/5) SHEET-3/5 (3/52)
  • Page 7 LY100 10uH CY109 PL-33 SUB_COMB_VIDEO 100p CY110 SUB_COMB_VIDEO OPEN CY108 RY524 25V0.1 Y_CD_SUB Y_CD_SUB CY107 CY502 CY538 LY112 OPEN CY541 PR_CD_SUB TEM2134AD 0.1uF 6.3V1000 PR_CD_SUB 6.3V1000 LY013 LY012 OPEN PB_CD_SUB PB_CD_SUB 10uH 3-A2 1-B6 46HM84/52HM84/62HM84 BACK AV (4/5) SHEET-4/5 (4/52)
  • Page 8 3.3V 3.3V 5V-1 5V-1 BUSY BUSY SCLK SCLK BOOT BOOT RESET RESET CNVSS CNVSS RESET RESET 5V-1 RESET 10 WRDET WRDET RESET SCL3 SCL3 PJ63 5P_2.5mm_1.5A_Beige 3.3V 3.3V RESET RESET SDA3 SDA3 PJ60 5P_2.5mm_1.5A_Beige 46HM84/52HM84/62HM84 BACK AV (5/5) SHEET-5/5 (5/52)
  • Page 9 R892 3R330 AUDIO Vcc V_TV V_TV AUDIO Vcc GND_A TUNER GND AUDIO GND TUNER GND AUDIO GND A_TV2 A_TV2 AUDIO GND AUDIO GND V_TV2 V_TV2 BB20 BB 16P PLUG BB71 SOCKET B-B 46P TAIKO 46HM84/52HM84/62HM84 IF AUDIO (1/3) SHEET-1/3 (6/52)
  • Page 10 SDA1 MTZJ6.8A D896 D894 MTZJ6.8A MTZJ6.8A 3-D2 TUNER32V P105 1-B6 R152 R151 Q151 5.6k Q152 KTA2014Y KTC4075Y-RTK R150 TP-12 3.3k GJ150 OPEN R155 OPEN R154 OPEN Q154 Q153 OPEN OPEN R153 OPEN GJ151 OPEN 46HM84/52HM84/62HM84 IF AUDIO (2/3) SHEET-2/3 (7/52)
  • Page 11 25V220 2.2k R693 CHIP-JP 1SS355-TE17\\MA111 A_MUTE MUTE_A D613 D617 1SS355-TE17\\MA111 SP_MUTE L_VARI D616 3-C8 GND_A 1SS355-TE17\\MA111 MUTE_A 1-C3 R_VARI D614 1SS355-TE17\\MA111 MUTE_E MUTE_E 2-D3 R697 1R560 R698 C683 25V100 C684 R699 25V47 D628 MA8120-M\\MA8120-H\\MA8120-L 46HM84/52HM84/62HM84 IF AUDIO (3/3) SHEET-3/3 (8/52)
  • Page 12 0.01 RV21 1/6P75 LV20 CV15 0.01 FRONT AV TO SCALER TO POWER PB22 4P_2.5mm RB15 1/6P470 REMOTE EYE RB19 P902A 1/6P47 3P_2.5mm_L_SMK DB05 OPEN SPVF11 DB31 CB01 OPEN 16V47u DB30 OPEN DOOR SW KB01 DB03 PIC-37043TE2 SIR-56SB3F 46HM84/52HM84/62HM84 F-AV (9/52)
  • Page 13 46HM84/52HM84/62HM84 AV_CONNECTOR (10/52)
  • Page 14 46HM84/52HM84/62HM84 AD_LPF (11/52)
  • Page 15 46HM84/52HM84/62HM84 DVCD2_LPF (12/52)
  • Page 16 46HM84/52HM84/62HM84 DVCD1_LPF (13/52)
  • Page 17 46HM84/52HM84/62HM84 3chADC HD (14/52)
  • Page 18 46HM84/52HM84/62HM84 3chADC MST9883 (15/52)
  • Page 19 46HM84/52HM84/62HM84 DVCD CSYNCIN (16/52)
  • Page 20 46HM84/52HM84/62HM84 DVCD TC90A92AFG (17/52)
  • Page 21 46HM84/52HM84/62HM84 DVCD POWER (18/52)
  • Page 22 46HM84/52HM84/62HM84 GENESIS(1/2) SHEET-1/2 (19/52)
  • Page 23 46HM84/52HM84/62HM84 GENESIS (2/2) SHEET-2/2 (20/52)
  • Page 24 46HM84/52HM84/62HM84 SDRAM (21/52)
  • Page 25 46HM84/52HM84/62HM84 GENESIS_POWER (22/52)
  • Page 26 From TV micom 46HM84/52HM84/62HM84 GENESIS_IIC (23/52)
  • Page 27 46HM84/52HM84/62HM84 SCALER DIGITAL INPUT (24/52)
  • Page 28 46HM84/52HM84/62HM84 SCALER CAPTURE INPUT (25/52)
  • Page 29 2.50 1.24 1.24 46HM84/52HM84/62HM84 DDR SDRAM (26/52)
  • Page 30 Ch1 Freq. Ch1 Freq. 13.49MHz 73.39MHz Ch1 Freq. 67.64MHz Ch1 Freq. 111.1MHz Ch1 Freq. 132.7MHz 46HM84/52HM84/62HM84 SCALER PLL (27/52)
  • Page 31 46HM84/52HM84/62HM84 OSD for North America (28/52)
  • Page 32 46HM84/52HM84/62HM84 (29/52)
  • Page 33 46HM84/52HM84/62HM84 94TB POWER (30/52)
  • Page 34 Ch1 Freq. Ch1 Freq. 45.00kHz 59.84Hz L : Phase 1 H: Phase 2 Ch1 Freq. 67.24MHz 46HM84/52HM84/62HM84 LVDS OUT (31/52)
  • Page 35 3.23 2.50 46HM84/52HM84/62HM84 Power (3.3V_2 to 2.5V_DVCC) (32/52)
  • Page 36 46HM84/52HM84/62HM84 LVDS OUT CONNECTOR (33/52)
  • Page 37 1.50 3.23 46HM84/52HM84/62HM84 DC/DC CONVERTER (34/52)
  • Page 38 Ch1 Freq. 4.199MHz 46HM84/52HM84/62HM84 SUB MICON (1/3) SHEET-1/3 (35/52)
  • Page 39 46HM84/52HM84/62HM84 SUB MICON (2/3) SHEET-2/3 (36/52)
  • Page 40 46HM84/52HM84/62HM84 SUB MICON (3/3) SHEET-3/3 (37/52)
  • Page 41 A Reset selection circuit is in sheet305. 46HM84/52HM84/62HM84 It intercepts by H at the time of BEP micon writing. OSD MICON 4/4 (38/52)
  • Page 42 Ch1 Freq. 10.06MHz 3.29 3.29 46HM84/52HM84/62HM84 MICON (1/3) SHEET-1/3 (39/52)
  • Page 43 46HM84/52HM84/62HM84 MICON (2/3) SHEET-2/3 (40/52)
  • Page 44 46HM84/52HM84/62HM84 MICON (3/3) SHEET-3/3 (41/52)
  • Page 45 4.93 3.29 46HM84/52HM84/62HM84 TV MICON RESET IC & FLASH (42/52)
  • Page 46 Ch1 Freq. 15.73kHz 46HM84/52HM84/62HM84 SYNC_DETECT (43/52)
  • Page 47 Ch1 Freq. Ch1 Freq. 15.73kHz 59.95Hz Ch1 Freq. Ch1 Freq. Ch1 Freq. Ch1 Freq. 13.51MHz 13.47MHz 15.73kHz 59.81Hz 46HM84/52HM84/62HM84 PLD (US OSD SYNC Generator) (44/52)
  • Page 48 46HM84/52HM84/62HM84 POWER_CONNECTOR (45/52)
  • Page 49 46HM84/52HM84/62HM84 TV MICON CONNECTOR (1) (46/52)
  • Page 50 46HM84/52HM84/62HM84 CONNECTOR (TV MICON-POWER BOARD) (47/52)
  • Page 51 46HM84/52HM84/62HM84 CONNECTOR (DLF I/F) (48/52)
  • Page 52 46HM84/52HM84/62HM84 SERVICE CONNECTOR (49/52)
  • Page 53 8.2k CH UP SNS2B OUT4 SNS3A OUT3 CA88 EXIT B1000p DET2 SNS3B OUT2 DET2 RA76 RA77 RA89 CHUP TV/VIDEO 110k TVV-O CH UP SNS4A OUT1 TLA1 CA89 SNS4B RA90 CHDN CH DN SNS5A TLA2 CA90 SNS5B 46HM84/52HM84/62HM84 Front Key (50/52)
  • Page 54 14.2 12.2 12.0 14.2 14.2 14.1 10.9 19.5 46HM84/52HM84/62HM84 MAIN POWER (51/52)
  • Page 55 46HM84/52HM84/62HM84 AC IN (52/52)

This manual is also suitable for:

52hm8462hm84