Toshiba 32A14 Service Manual

FILE NO. 050-200404

DOCUMENT CREATED IN JAPAN, Feb., 2004

SERVICE MANUAL

COLOR TELEVISION

32A14

SERVICING NOTICES ON CHECKING

As for the places which need special attentions,
they are indicated with the labels or seals on the
cabinet, chassis and parts. Make sure to keep the
indications and notices in the operation manual.

2. AVOID AN ELECTRIC SHOCK

There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.

3. USE THE DESIGNATED PARTS

The parts in this equipment have the specific
characters of incombustibility and withstand
voltage for safety. Therefore, the part which is
replaced should be used the part which has
the same character.
Especially as to the important parts for safety
which is indicated in the circuit diagram or the
table of parts as a mark, the designated
parts must be used.

4. PUT PARTS AND WIRES IN THE
ORIGINAL POSITION AFTER
ASSEMBLING OR WIRING

There are parts which use the insulation
material such as a tube or tape for safety, or
which are assembled in the condition that
these do not contact with the printed board.
The inside wiring is designed not to get closer
to the pyrogenic parts and high voltage parts.
Therefore, put these parts in the original
positions.

5. TAKE CARE TO DEAL WITH THE
CATHODE-RAY TUBE

In the condition that an explosion-proof cathode­ray tube is set in this equipment, safety is
secured against implosion. However, when
removing it or serving from backward, it is
dangerous to give a shock. Take enough care to
deal with it.

6. AVOID AN X-RAY1. KEEP THE NOTICES

Safety is secured against an X-ray by consider­ing about the cathode-ray tube and the high
voltage peripheral circuit, etc.
Therefore, when repairing the high voltage pe­ripheral circuit, use the designated parts and
make sure not modify the circuit.
Repairing except indicates causes rising of high
voltage, and it emits an X-ray from the cathode­ray tube.

PERFORM A SAFETY CHECK AFTER

7.
SERVICING

Confirm that the screws, parts and wiring which
were removed in order to service are put in the
original positions, or whether there are the
portions which are deteriorated around the
serviced places serviced or not. Check the
insulation between the antenna terminal or
external metal and the AC cord plug blades.
And be sure the safety of that.

(INSULATION CHECK PROCEDURE)

1.

Unplug the plug from the AC outlet.

2.

Remove the antenna terminal on TV and turn
on the TV.

3.

Insulation resistance between the cord plug
terminals and the eternal exposure metal
[Note 2] should be more than 1M ohm by
using the 500V insulation resistance meter
[Note 1].

4.

If the insulation resistance is less than 1M
ohm, the inspection repair should be
required.

[Note 1]

If you have not the 500V insulation
resistance meter, use a Tester.

[Note 2]

External exposure metal: Antenna terminal

Earphone jack

HOW TO ORDER PARTS

Please include the following informations when you order parts. (Particularly the VERSION LETTER.)

1. MODEL NUMBER and VERSION LETTER
The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be

found at the end of the SERIAL NUMBER.

2. PART NO. and DESCRIPTION
You can find it in your SERVICE MANUAL.

IMPORTANT

Inferior silicon grease can damage IC's and transistors.
When replacing an IC's or transistors, use only specified silicon grease (YG6260M).
Remove all old silicon before applying new silicon.

A1-1

TABLE OF CONTENTS

SERVICING NOTICES ON CHECKING.....................................................................................

HOW TO ORDER PARTS ..........................................................................................................

IMPORTANT ...............................................................................................................................

TABLE OF CONTENTS..............................................................................................................

GENERAL SPECIFICATIONS....................................................................................................

DISASSEMBLY INSTRUCTIONS

1. REMOVAL OF ANODE CAP ...............................................................................................

2. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ................................................

SERVICE MODE LIST ................................................................................................................

CONFIRMATION OF HOURS USED .........................................................................................

WHEN REPLACING EEPROM (MEMORY) IC ..........................................................................

ELECTRICAL ADJUSTMENTS..................................................................................................

BLOCK DIAGRAMS ...................................................................................................................

PRINTED CIRCUIT BOARDS

MAIN/CRT/STEREO JACK .....................................................................................................

SCHEMATIC DIAGRAMS

MICON .....................................................................................................................................

CHROMA .................................................................................................................................

DEFLECTION ..........................................................................................................................

POWER ...................................................................................................................................

SOUND ....................................................................................................................................

TUNER/STEREO.....................................................................................................................

AV ............................................................................................................................................

CRT..........................................................................................................................................

COMB FILTER.........................................................................................................................

AV JACK ..................................................................................................................................

WAVEFORMS .............................................................................................................................

MECHANICAL EXPLODED VIEWS...........................................................................................

MECHANICAL REPLACEMENT PARTS LIST .........................................................................

ELECTRICAL REPLACEMENT PARTS LIST...........................................................................

A1-1
A1-1
A1-1
A2-1
A3-1~A3-5

B1-1
B2-1, B2-2
C1-1
C1-1
C1-1
D-1~D-5
E-1, E-2

F-1~F-4

G-1, G-2
G-3, G-4
G-5, G-6
G-7, G-8
G-9, G-10
G-11, G-12
G-13, G-14
G-15, G-16
G-17, G-18
G-19, G-20
H-1, H-2
I-1, I-2
J1-1
J2-1~J2-4

A2-1

GENERAL SPECIFICATIONS

G-1 TV CRT CRT Size / Visual Size 32 inch / 800.1mmV

System CRT Type Normal

Color System NTSC
Speaker 2Speaker

Sound Output MAX

NTSC3.58+4.43 /PAL60Hz No

G-2 Tuning Broadcasting System US System M

System Tuner and System 1Tuner

Receive CH Destination USA(W/ CATV)

Intermediate Picture(FP) 45.75MHz
Frequency Sound(FS) 41.25MHz

Preset CH
Stereo/Dual TV Sound Yes
Tuner Sound Muting Yes

G-3 Power Power Source AC 120V AC 60Hz

Power Consumption at AC

Protector Power Fuse Yes

G-4 Regulation Safety UL/CSA

G-5 Temperature Operation +5oC ~ +40oC

G-6 Operating Humidity Less than 80% RH

Deflection 110 degree
Magnetic Field BV/BH +0.45G/0.18G

Position Front
Size 1.8 x 3.9 Inch
Impedance 8 ohm

10%(Typical)

Tuning System F-Synth
Input Impedance VHF/UHF 75 ohm

CH Coverage A - I, J - W, W+1 - W+84

FP-FS 4.50MHz

DC -

Stand by (at AC) 3 W at AC 120 V 60 Hz
Per Year -- kWh/Year

Safety Circuit Yes
IC Protector(Micro Fuse) No

Radiation FCC/IC
X-Radiation DHHS/HWC

Storage -20oC ~ +60oC

5.0 + 5.0 W

4.0 + 4.0 W

2 - 69, 4A, A-5 - A-1,

No

130 W at AC 120 V 60 Hz

A3-1

GENERAL SPECIFICATIONS

G-7 On Screen Menu Yes

Display Menu Type Icon

G-8 OSD Language English French Spanish

Picture Yes

Contrast Yes
Brightness Yes
Color Yes
Tint Yes
Sharpness Yes

Audio Yes

Bass Yes
Treble Yes
Balance Yes
BBE On/Off No
Stable Sound On/Off Yes
Surround On/Off Yes

Set Up Yes

TV/CABLE(CATV) Yes
CH Program Yes
Add/Erase Yes

Option Yes

Language Yes
V-chip Yes
CH Label Yes
Favorite CH Yes
Lock Yes
On/Off Timer Yes
Color Stream DVD/DTV Yes

Control Level Yes

Volume Yes
Brightness Yes
Contrast Yes
Color Yes
Tint Yes
Sharpness Yes
Tuning No
Bass Yes
Treble Yes
Balance Yes

Back Light No
Stereo,Audio Output,SAP Yes
Video Yes
Color Stream Yes
Channel(TV/Cable) Yes
CH Label Yes
Game Timer Yes
Sleep Timer Yes
Sound Mute Yes
V-chip Rating Yes
16: 9 No

G-9 Clock and Sleep Timer Max Time 120 Min

Timer Step

On/Off Timer Program(On Timer / Off Timer / Clock) Yes
Wake Up Timer No
Timer Back-up (at Power Off Mode) more than -- Min Sec

10 Min

A3-2

GENERAL SPECIFICATIONS

G-10 Remote Unit RC-GW

Control Glow in Dark Remocon Yes

Format Toshiba
Custom Code
Power Source Voltage(D.C) 3V

UM size x pcs UM-4 x 2 pcs

Total Keys
Keys Power Yes

1 Yes

2 Yes

3 Yes

4 Yes

5 Yes

6 Yes

7 Yes

8 Yes

9 Yes

0 Yes

100 Yes

CH Up Yes

CH Down Yes

Volume Up Yes

Volume Down Yes

TV/Caption/Text Yes

CH1/CH2 Yes

TV/Video(TV/AV) Yes

CH RTN/CH ENT(Quick View) Yes

Sleep Yes

RE Call(Call) Yes

Reset Yes

Menu/Enter Yes

Mute Yes

Exit Yes

MTS(Audio Select) Yes

Fav.Up Yes

Fav.Down Yes

16: 9 No

Multi Brand Keys CH Up(VCR) Yes

CH Down(VCR) Yes

Pause/Still Yes

TV/VCR(VCR) Yes

FF Yes

Rew Yes

Rec Yes

Play Yes

Stop Yes

TV Yes

VCR Yes

Cable Yes

DVD Yes

CODE Yes

Volume Up(DVD) Yes

Volume Down(DVD) Yes

DVD CLEAR Yes

TOP MENU Yes

DVD MENU Yes

DISPLAY Yes

TV:40-BF h

49 Keys

A3-3

GENERAL SPECIFICATIONS

G-11 Features Auto Degauss Yes

G-12 Accessories Owner's Manual Language English /French

Auto Shut Off Yes
Canal+ No
CATV Yes
Anti-theft No
Rental No
Memory(Last CH) Yes
Memory(Last Volume) Yes
V-Chip Yes

Type

BBE No
Auto Search No
CH Allocation No
SAP Yes
Just Clock Function No
CH Label Yes
VM Circuit No
Full OSD No
Premiere No
Comb Filter Yes

Auto CH Memory Yes
Hotel Lock No
Closed Caption Yes
Stable Sound Yes
FBT Leak Test Protect Yes
CH Lock Yes
Video Lock Yes
Game Timer (Max Time:120 Min) Yes
Energy Star No
Favorite CH Yes
Surround Yes
16:9 Mode No
2 Tuner P-in-P No

W/ Warranty Yes

Remote Control Unit Yes
Rod Antenna No

Poles

Terminal

Loop Antenna

Terminal

U/V Mixer
DC Car Cord (Center+)
Guarantee Card
Warning Sheet
Circuit Diagram
Antenna Change Plug
Service Facility List
Important Safety Instruction
Dew/AHC Caution Sheet
AC Plug Adapter
Quick Set-up Sheet
Battery Yes

UM size x pcs UM4 size x 2

OEM Brand

AC Cord
AV Cord (2Pin-1Pin)
Registration Card (NDL Card) Yes
ESP Card
PTB Sheet
300 ohm to 75 ohm Antenna Adapter

USA,Toshiba Type

3 Lines

No

No
No
No
No
No
No
No
No
No
No
No

No
No
No

No[From '04 MAR O/R]
No
No

A3-4

GENERAL SPECIFICATIONS

Surfaces

G-13 Interface Switch Front Power Yes

Rear AC/DC No

Indicator Power Yes(RED)

Terminals Front Video Input

Rear Video Input(Rear1)

G-14 Set Size Approx. W x D x H (mm)
G-15 Weight Net (Approx.) 52.0kg

G-16 Carton Master Carton

Gift Box Yes

Drop Test

Container Stuffing 104

G-17 Cabinet Material Cabinet Cabinet Front PS 94V0 DECABROM

PCB Non-Halogen Demand

System Select No

Main Power SW No

Sub Power No

Channel Up Yes

Channel Down Yes

Volume Up Yes

Volume Down Yes

TV/CATV Selector No

Degauss No

Main Power SW No

Stand-by No

On Timer No

Audio Input

Other Terminal No

Video Input(Rear2)

Audio Input(Rear1)

Audio Input(Rear2)

Video Output

Audio Output

S- Input Yes

Euro Scart No

Color Stream

Diversity No

Ext Speaker No

DC Jack 12V(Center +) No

VHF/UHF Antenna Input

AC Outlet No

Gross (Approx.) 58.0Kg

Content ----

Material --

Dimensions W x D x H(mm) -- x -- x --

Description of Origin

Material Double/Brown

Dimensions W x D x H(mm) 840 x 625 x 787

Design As per Buyer's

Description of Origin Yes

Height (cm) 40 (ORION SPEC:25)

Cabinet Rear PS 94V0 DECABROM

Eyelet Demand Yes

RCA
RCA x 2

RCA
RCA
RCA x 2
RCA x 2
RCA
RCA x 2

RCA x 3

F Type
751 x 552 x 658.5

( 114.7 lbs)
(127.9 lbs)
No
Sets
/--

No

Natural Dropping At 1 Corner / 2 Edges /

4

Sets/40' container

No

A3-5

DISASSEMBLY INSTRUCTIONS

1. REMOVAL OF ANODE CAP

Read the following NOTED items before starting work.
*

After turning the power off there might still be a potential
voltage that is very dangerous. When removing the
Anode Cap, make sure to discharge the Anode Cap's
potential voltage.

*

Do not use pliers to loosen or tighten the Anode Cap
terminal, this may cause the spring to be damaged.

REMOVAL

1. Follow the steps as follows to discharge the Anode Cap.

(Refer to Fig. 1-1.)

Connect one end of an Alligator Clip to the metal part of a
flat-blade screwdriver and the other end to ground.
While holding the plastic part of the insulated Screwdriver,
touch the support of the Anode with the tip of the
Screwdriver.
A cracking noise will be heard as the voltage is discharged.

GND on the CRT

3. After one side is removed, pull in the opposite direction to
remove the other.

NOTE

Take care not to damage the Rubber Cap.

INSTALLATION

1. Clean the spot where the cap was located with a small
amount of alcohol. (Refer to Fig. 1-3.)

Location of Anode Cap

Fig. 1-3

NOTE

Confirm that there is no dirt, dust, etc. at the spot where
the cap was located.

2.3.Arrange the wire of the Anode Cap and make sure the
wire is not twisted.
Turn over the Rubber Cap. (Refer to Fig. 1-4.)

Screwdriver

Alligator Clip

GND on the CRT

Flip up the sides of the Rubber Cap in the direction of the

2.
arrow and remove one side of the support.

(Refer to Fig. 1-2.)

Rubber Cap

CRT

Support

Support

CRT

Fig. 1-1

Fig. 1-2

4. Insert one end of the Anode Support into the anode button,
then the other as shown in Fig. 1-5.

Support

CRT

5.6.Confirm that the Support is securely connected.
Put on the Rubber Cap without moving any parts.

B1-1

Fig. 1-4

Fig. 1-5