Toshiba 34HF84 Quick start guide

SPECIFIC INFORMATIONS
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 " " 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. 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.
MODEL : 32HL83
SCHEMATIC DIAGRAM STRUCTURE:
SIGNAL ( 1/8 ) [ SHEET - 1 ] ..................... 1/20
AV-1 [ SHEET - 2 ] ..................... 2/20
vs.AV [ SHEET - 4 ] ..................... 3/20
AV-2 [ SHEET - 6 ] ..................... 4/20
AV-3 [ SHEET - 7 ] ..................... 5/20
VARI-OUTPUT / HDMI-Mute [ SHEET - 8 ] ..................... 6/20
SYNC OUT [ SHEET - 9 ] ..................... 7/20
HP-AMP&MUTE [ SHEET - 10 ] ................... 8/20
BACK AV BACK-AV1 [ SHEET - 1 ] ..................... 9/20
BACK-AV3 [ SHEET - 2 ] ................... 10/20
2TN-IMA 2TN-IMA [ SHEET - 1 ] ................... 11/20
AUDIO GAIN COMPENSATION [ SHEET - 2 ] ................... 12/20
FRONT AV ............................................................................................................................ 13/20
KEY ........................................................................................................................................ 14/20
POWER SW .......................................................................................................................... 15/20
G-HYPER ............................................................................................................................... 16/20
A-OUT ( 1/2 ) [ SHEET - 1/2 ] ................ 17/20
( 2/2 ) [ SHEET - 2/2 ] ................ 18/20
IR-PASSTHROURGH ............................................................................................................ 19/20
WIRING CONNECTION DIAGRAM ..................................................................................... 20/20
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 1/2S = Carbon compsistion of 1/2 watt
1RF = Fuse resistor of 1 watt 10W = Cement of 10 watt
K = 10% G = 2% F = 1%
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.
Electolytic capacitor Mylar capacitor
3. The parts indicated with " " have special characteristics, and should be replaced with identical parts only.
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 220 volts.
5. Waveforms are taken receiving color bar signal with enough sensitivity.
6. Voltage reading shown are nominal values and may vary 20% except H.V.

–39 –
SPECIFIC INFORMATIONS
AV
QV01
CXA2069Q
V_AV G-HYPER
V_PIP
COMB
QY100
TC90A45F SUB CD
QY501
TA1340F
C_AV
C_AV_SUB
C_COMB_S
Y_COMB_S
CS
QV254
MM1519XQ
CS_E4
CS_E5
DVI
Y1
SUB-Y
E1
E2
E3
SCALER
RGB-PROC.
TC90A94TBG
u-COM
QA01
MN102HF75K
OSD
DVCD
QZ501
TC90A92
A/D
QX100
A/D
QU100
I/P
QX300
GM6010
A PORT B PORT
V_AV_MC SYNC_M
SYNC_S
HD
VD
HD
VD
PCLOCK_IN
A/D
QE14
CXD2303AQ
TV
XGA
PANEL
POWER
CIRCUIT BLOCK DIAGRAM

BOARD
The parts which are indicated with broken
lines are restricted to distribute outside.
IMPORTANT
*
[SHEET-1](1/20)
32HL83
SIGNAL - (1/8)

BOARD

The parts which are indicated with broken
lines are restricted to distribute outside.
IMPORTANT
*
[SHEET-1](1/20)
32HL83
SIGNAL - (1/8)

[SHEET-2](2/20)
32HL83
SIGNAL - AV-1

[SHEET-2](2/20)
32HL83
SIGNAL - AV-1

[SHEET-4](3/20)
SIGNAL - vs.AV
32HL83
For lightning

For lightning

[SHEET-4](3/20)
SIGNAL - vs.AV
32HL83

[SHEET-6](4/20)
SIGNAL - AV-2
32HL83

[SHEET-6](4/20)
SIGNAL - AV-2
32HL83

SIGNAL - AV-3
[SHEET-7](5/20)
32HL83

SIGNAL - AV-3
[SHEET-7](5/20)
32HL83

SIGNAL - VARI-OUTPUT/HDMI-Mute
[SHEET-8](6/20)
32HL83

SIGNAL - VARI-OUTPUT/HDMI-Mute
[SHEET-8](6/20)
32HL83