Toshiba 28ZH46P, 32ZH46P Schematic

FILE NO. 030-200405

SERVICE MANUAL

Colour Television

28ZH46P

(TENTATIVE)

ZH47 Chassis

32ZH46P

Published in Japan, Jun. 2004 (YC)

CHAPTER 1 GENERAL ADJUSTMENTS

SAFETY INSTRUCTIONS........................................................................................................................................3

SET-UP ADJUSTMENT............................................................................................................................................4

SERVICE MODE ......................................................................................................................................................6

DESIGN MODE ........................................................................................................................................................9

ELECTRICAL ADJUSTMENTS .............................................................................................................................. 10

CIRCUIT CHECK....................................................................................................................................................12

CHAPTER 2 SPECIFIC INFORMATIONS

SETTING & ADJUSTING DATA ..............................................................................................................................13

LOCATION OF CONTROLS...................................................................................................................................14

CHASSIS AND CABINET REPLACEMENT PARTS LIST......................................................................................16

PC BOARDS BOTTOM VIEW.................................................................................................................................26

TERMINAL VIEW OF TRANSISTORS ................................................................................................................... 34

CIRCUIT BLOCK DIAGRAM ..................................................................................................................................36

SPECIFICATIONS AND ACCESSORIES........................................................................................................... END

APPENDIX:

CIRCUIT DIAGRAM

CHAPTER 1 GENERAL ADJUSTMENTS

SAFETY INSTRUCTIONS

WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU-

TION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW.

X-RAY RADIATION PRECAUTION

1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To avoid such hazards, the high voltage must not be abov e the specified limit. The nominal value of the high voltage of this receiver is (A) kV at zero beam current (minimum brightness) under a (C) V A C power source. The high voltage m ust not, under any circumstances, exceed (B) kV.

Refer to table-1 for high v oltage (A), (B) & AC voltage (C). (See SETTING & ADJUSTING DATA on page 13)

Each time a receiver requires servicing, the high voltage should be checked f ollowing the HIGH VOLTAGE CHECK procedure in this manual. It is recommended that the reading of the high voltage be recorded as a part of the service record. It is important to use an accurate and reliable high voltage meter.

2. The only source of X-RAY RADIATION in this TV receiver is the picture tube. F or contin ued X-RAY RADIATION protection, the replacement tube must be exactly the same type tube as specified in the parts list.

3. Some part in this receiver have special safety-related characteristics for X-RAY RADIATION protection. For continued safety, parts replacement should be undertaken only after referring to the PRODUCT SAFETY NO TICE below.

SAFETY PRECAUTION

WARNING : Service should not be attempted by anyone unf amiliar with the necessary precautions on this receiver . The f ollowing are the necessary precautions to be observed before servicing this chassis.

1. An isolation transformer should be connected in the power line between the receiver and the AC line before any service is performed on the receiver.

2. Always discharge the picture tube anode to the CRT conductive coating before handling the picture tube. The picture tube is highly evacuated and if broken, glass fragments will be violently expelled. Use shatter proof goggles and keep picture tube away from the unprotected body while handling.

3. When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place, such as; nonmetallic control knobs, insulating covers, shields, isolation resistor-capacitor network etc.

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These characteristics are often passed unnoticed by a visual inspection and the protection afforded by them cannot necessarily be obtained b y using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by the international hazard symbols on the schematic diagram and the parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock, fire, X-ray radiation or other hazards.

WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU-

TION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF SERVICE MANUAL.

SET-UP ADJUSTMENT (FOR FLAT TUBE)

■ The following adjustments should be made when a complete realignment is required or a new picture tube is installed. Perform the adjustments in order as follows :

1. Color Purity

2. Convergence

3. White Balance Note:The PURITY/CONVERGENCE MAGNET assembly and rubber wedges need mechanical positioning.

Refer to figure 1.

COLOR PURITY ADUSTMENT

(1)Let the screen face in the installing direction or toward the east (when it is to be moved), bring up the service mode

screen after demagnetizing (front, left, right, and top) with the degaussing coil, receive white signals by pressing the

[TV/VIDEO] button, and then the receiver should be operated for more than 40 minutes. (2)Perform rough adjustment of the central convergence with the P/C magnet according to the adjustment item. (3)Receive built-in green signals, loosen set screws on the deflection yoke, remove rubber wedges, and shift the deflection

yoke to toward front. (4)Move alternately the two 2-pole magnets of the P/C magnets so that the green raster can come to the center of the

screen.

Figure 1.

2-pole purity magnet

(27": Magnet is fixed with deflection yoke.)

Green Belt

Sub-4-pole convergence magnet (32" : 34") Sub-4-pole convergence magnet (to be installed on deflection yoke for 30", 32”)

Main 4-pole convergence magnet (30" : 32") 6-pole convergence magnet (34") 6-pole convergence magnet (30" : 32") Main 4-pole convergence magnet (34")

P/C magnet installing position A

• 30"=26.5 mm

• 32"=30.5 mm or 32.5 mm

• 34"=37 mm

• 34"=39 mm

(5)Receive built-in red and blue signals, check that there is no inclination of the single color raster toward one side, and if

each color tilts to a great extent, make adjustment with the 2-pole magnet so that the 3 colors will come to the center

evenly. (6)Receive the green raster, shift the deflection yoke from a

foremost position (hitting against the picture tube) to a

Shift deflection yoke

(7) Perform marking of each point

(6)

(8)

on the tape of picture tube

backward position horizontally, stop the deflection yoke

at a position where it begins to become a green raster,

and perform accurate marking on the picture tube. (7)Shift the deflection yoke further backward, and perform

Picture tube

CRT-D board

accurate marking at a position where the green raster

begins to being luck. (8)Fix the deflection yoke at a position 60% forward within

the range marked in items (6) and (7) above.

CONVERGENCE ADJUSTMENTS

100 60 0%

Fix the deflection yoke at a position 60% forward from a point between (6) and (7)

P/C Mag

* Adjust the convergence magnet to get vest convergence in the the order to (1) ~ (5).

■ CENTER CONVERGENCE:

(1)Receive the white crosshatch or dot pattern from the service signal generator. (2)Use the 2 pieces of main 4-pole magnets of P/C magnets, change the open angle, and align the red and blue vertical

lines on the screen center. (3)Freeze the open angle of the main 4-pole magnets, turn them simultaneously, and align the horizontal lines. (4)Take the same steps for items (2) and (3) above and align red/blue with green on the screen center using two 6-pole

magnets.

(5)Adjust the sub-4-pole magnets only in case there is any deviation of Xv bow-shaped convergence. (To be usually set at

the initial position)

Align both sides with the sub-4-pole magnets and minimize the deviation of blue and red with the main 4-pole magnets.

blue

blue red

red

Main 4-pole magnet

red/blue

green

6-pole magnet

■ CIRCUMFERENCE CONVERGENCE:

Perform correction in the following manner.

blue

green red

(Parts code:23 948 274) TC-S

blue

green

red

S N

Blue color or blue mark

*Insert the correction piece between the picture tube and the deflection yoke.

Bonded surface

(Insertion position of correction piece)

D E F

A B C

Adjust VR 1 and minimize the deviation of YH. *Only 27", 30" and 32".

Red

green

blue

green

Red

Xv bow-shaped deviation of convergence

blue

green

red

Sub-4-pole magnet

• Adjust coils and minimize deviation (The 27” unit has coils underneath it)

■ 30", 27", 32"

blue

green

red

(Parts code:23 948 464)

N S

Bonded surface

Red

green

blue

green

Red

Adjust VR 2 (YHC) and minimize the deviation of YH.

Red

blue

green

blue

Red

blue

Red

green

Red

blue

Adjust VR 3 (YV) and minimize the deviation of YV.

Red

green

blue

green

Red

blue

green

blue

red

green

blue

red

blue

green

Red

green

blue

green

Red

blue

VR3

VR2 VR1

■ 34"

YV YHC

27" (Part No. 23 947 371) 32", 30" (Part No. 23 947 121) 34" (Part No. 23 993 080)

Perform correction by inser ting the

correction piece into the clearance of terminal board coils of the deflection yoke.

Note:

Perform insertion by turning the

metal side to the terminal board side of the deflection yoke.

1. ENTERING TO SERVICE MODE

1) Press button once on Remote Control.

SERVICE MODE

2) Press button again to keep pressing.

3) While pressing the button, press MENU button on TV set.

2. DISPLAYING THE ADJUSTMENT MENU

1) Press MENU button on TV to switch between screens.

Adjustment mode

RCUT 32H

Item Data

Press MENU

Service mode

3. KEY FUNCTION IN THE SERVICE MODE

The following key entry during display of adjustment menu provides special functions.

Action

A single hor

izontal line ON/OFF: -/-- button (on Remote) or button (on TV)

Selection of the adjustment items : Change of the data value : Adjustment menu mode ON/OFF : Initialization of the memory (QA02) :

General Operation

Channel / (on TV or Remote) Volume +/– (on TV or Remote) MENU button (on TV) CALL + Channel button on TV ( )

Reset the count of operating protect

circuit to “00”: “RCUT” selection : “GCUT” selection : “BCUT” selection : “SCNT” selection : “COLP” selection : Self diagnostic display ON/OFF :

CALL + Channel button on TV ( ) 1button 2button 3button 4button 5button 6button 7button

Color thickness correction note: Displayed differently

as shown below, depending on the setting

of the receiving color system.

COLP (PAL) COLC (NTSC) COLS (SECAM)

Item Data

(Service mode display)

CAUTION : Never try to perform initialization unless you have changed the memory IC.

4. SELECTING THE ADJUSTING ITEMS

1) Every pressing of CHANNEL button in the service mode changes the adjustment items in the order of table-2. ( button for reverse order)

Refer to Table-2 for preset data of adjustment mode. (See SETTING & ADJUSTING DATA on page 13)

5. ADJUSTING THE DATA

1) Pressing of VOLUME +/– button will change the value of data in the range from 00H to FFH. The variable

range depends on the adjusting item.

6. EXIT FROM SERVICE MODE

1) Pressing POWER button to turn off the TV once.

INITIALIZATION OF MEMORY DATA OF QA02

After replacing QA02, the following initialization is required.

1. Enter the service mode, then select any register item.

2. Press and hold the CALL button on the Remote, then press the CHANNEL button on the TV. The initialization of QA02 has been complated.

3. Check the picture carefully. If necessary, adjust any adjustment item as required. Perform “Auto search Memory” as per the owners manual instruction.

CAUTION: Never attempt to initialize the data unless QA02 has been replaced.

8. SELF DIAGNOSTIC FUNCTION

1) Press “9” button on Remote Control during display of adjustment menu in the service mode. The diagnosis will begin to check if interface among IC’s are executed properly.

2) During diagnosis, the following displays are shown.

Indicated color of mode now selected : Green and Red

Indicated color of other modes : White

23****** POWER : 00 BUS LINE : OK BUS CONT : OK BLOCK :

UV V1 V2 QV01

Part number of microcomputer (QA01) Operation number of protecting circuit ----“00” is normal. When indication is other than “00”, overcurrent apts to flow, and circuit parts may possibly be damaged. BUS LINE CHECK ----“OK” is normal. “SDA (SDA1)-GND” ----------------------- SDA-GND short circuit. “SCL (SCL1)-GND” ----------------------- SCL-GND short circuit. “SCL (SCL1)-SDA(SDA1)” -------------- SCL-SDA short circuit. BUS CONT ----“OK” is normal. When indication shows “Q

NG”, the device with the number may possibly be damaged. BLOCK UV : TV reception mode V1: VIDEO 1 input mode ( 1) V2: VIDEO 2 input mode ( 2)

Green :Normal Red : The microcomputer operates to provide judgement

of no video signal. The red color is still indicated though the signal is input, failure may exist in input signal line including QV01.

QV01 : In case of indication green ---Normal

In case of indication red with input signal---Failure may exist in output line including QV01.

NOTE: Component which controls character display on

screen is QA01 (MICRO/TELETEXT IC.). If this display function fails to operate due to damage of QA01, or QV01 non operation self diagnosis procedure is as follows.

(1) In case that power indicator is blinking with

interval of 0.5 sec's; it means protecting circuit is operating, and circuit components may possibly be damaged. Check related components.

(2) In case that power in indicator is blinking

with interval of 1 second; protecting circuit does not operate, but part of bus line does not operate normally. Check bus line.

The items marked with are not usable to display in the SELF DIAGNOSTIC FUCTION for some model.

1. ENTERING TO DESIGN MODE

1) Select the Service mode.

DESIGN MODE

2) While pressing (or CALL) button on Remote and press MENU button on TV.

3) Press MENU button on TV set.

S D

(Design mode) (Adjustment mode)

Press

ITEM DATA

When QA01 is initialized, items “OPT0” and “OPT1” of DESIGN MODE are set to the data of the representative model of this chassis family. Therefore, because ON-SCREEN specification remains in the state of the representative of model. This model is required to reset the data of items “OPT0” and “OPT1”.

2. SELECTING THE ADJUSTING ITEMS

Every pressing of CHANNEL button in the design mode changes the adjustment items in the order of table-3. ( button for reverse order)

Refer to bus data table for data of design mode. (See SETTING & ADJUSTING DATA on page 13)

3. ADJUSTING THE DATA

Pressing of VOLUME or ( –/+) button will change the value of the data.

SERVICE MODE ADJUSTMENTS

ITEM ADJUSTMENT PROCEDURE

FOCUS VR ADJ

SUB-BRIGHTNESS (Address:BRTC)

Note: Constrict the picture height

until the vertical retrace line appears adjusting the adress HIT (HEIGHT).

HORIZONTAL POSITION ADJUSTMENT (HPOS)

VERTICAL POSITION ADJUSTMENT (VPOS)

* For models without internal pattern generator , use external signal generator

1. Enter the service mode, then select any register item.

2. Press the TV/VIDEO button on the Remote until the black cross-bar pattern appears on the screen.

3. Adjust the FOCUS control (on T461) f or well defined scanning lines on the picture screen.

1. Set CONTRAST to minimum, and BRIGHTNESS to centre by adjusting user controls.

2. Set the TV in service mode to get white cross-bar of inside pattern.

3. Select BRTC (brightness correction), and adjust the – /+ button to reduce the value so that white portion of inside pattern slightly light.

4. Adjust – /+ button to increase the data value of BRTC, and set is just before the difference between the belt of vertical retrace and the border of black portion of pattern is visible. After that, return vertical height and contrast.

1. Set the TV in service mode, and get black or white cross-bar signal with VIDEO button on remote hand unit.

2. Select either HPOS (Horizontal picture phase) or VPOS (Vertical picture phase) with CHANNEL , buttons, and adjust horizontal or vertical picture position in the centre of screen with VOLUME – /+ buttons.

Belt of vertical retrace

VERTICAL AMPLITUDE ADJUSTMENT (HIT)

1. Set the TV in service mode, and get black or white cross-bar signal with VIDEO button on remote hand unit.

2. Select HIT (Ver tical amplitude) with CHANNEL , buttons, and adjust vertical amplitude with VOLUME

– /+ buttons so that vertical am-

plitude lacks a little.

3. Adjust vertical amplitude with VOLUME – /+ buttons so that the first bar on cross-hatch signal touches edge of screen.

The first

ITEM ADJUSTMENT PROCEDURE

WHITE BALANCE ADJUSTMENT

CUTOFF ADJUSTMENT

•

(RCUT) (GCUT) (BCUT)

DRIVE ADJUSTMENT

•

(GDRV) (BDRV)

1. Set Contrast to 40, and brightness to +20 by picture control.

2. Set the TV in service mode, and get the inside W/B adjusting signal with VIDEO button.

3. Select RCUT, GCUT and BCUT with CHANNEL , buttons, to set individual values to 32, and to set GDRV and BDRV to 20 with

4. Press -/- - button on the remote control and rotate Screen VR to get one slight horizontal line on screen. Note: Every pressing of -/- - button provides Horizontal line picture and Normal picture alternately.

5. Press -/- - button to release horizontal line picture, and select the two other colors which did not light in the above step with CHANNEL , buttons. Then tap V OLUME – /+ buttons so that three colors slightly light in the same level.

To correct white balance in light area, select GDRV and BDR V with CHANNEL

, buttons to adjust. To correct white balance in dark area, perform fine adjustment of RCUT , GCUT and BCUT.

VOLUME – /+ buttons.

Light area check

(to show white)

Dark area check

CIRCUIT CHECK

HIGH VOLTAGE CHECK CAUTION: There is no HIGH VOLTAGE ADJUSTMENT on this chassis. Checking should be done following the steps

below.

1. Connect an accurate high voltage meter to the second anode of the picture tube.

2. Turn on the receiver. Set the BRIGHTNESS and CONTRAST controls to minimum (zero beam current).

3. High voltage must be measured below (B) kV.

Refer to table-1 for high voltage (B). (See SETTING & ADJUSTING DATA on page 13)

4. Vary the BRIGHTNESS control to both extremes to be sure the high v oltage does not exceed the limit under any conditions .

-- 14

Power Button

RED – Power On

GREEN – On timer is set

Front

LOCATION OF CONTROLS

Back

SCART1 (EXT1)

SCART2 (EXT2)

To mute the sound

Teletext control buttons

To exit Menus

Dynamic Sub Bass

Virtual Dolby Surround

To bring up on-screen information and

for the teletext initial/index function

To select input from external sources

To select mode

On-screen Menus

Selectable picture preferences

Widescreen viewing

Number buttons

To return to the previous programme

For On/Standby mode

To display teletext

When using a TOSHIBA VCR or DVD:

press

to PAUSE

press

to EJECT

press

to SKIP-REWIND

press

to SKIP-FORWARD

press

to PLAY

press

to STOP

press

to REWIND

press

to FAST FORWARD

To change programme positions and teletext pages To alter the volume When using menus the arrows move the cursor on the screen up, down, left or right. OK to confirm your selection

When in television mode:

Still picture

I/II

Stereo/bilingual reception

8/9

Time display

When in Teletext mode:

To reveal concealed text

To hold a wanted page

To enlarge teletext display size

8/9

To select a page whilst viewing a normal picture

Remote Control

CHASSIS AND CABINET REPLACEMENT PARTS LIST

WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY

PRECAUTION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL.

CAUTION: The international hazard symbols " " in the schematic diagram and the parts list designate com- ponents 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. Do not degrade the safety of the receiver through improper servicing.

NOTICE:

•

The part number must be used when ordering parts, in order to assist in processing, be sure to include the

Model number and Description.

•

The PC board assembly with ∗ mark is no longer available after the end of the production.

Model : 28ZH46P/32ZH46P

Capacitors............. CD : Ceramic Di sk PF : Plastic Film EL : Electrolytic

Resistors ............... CF : Carbon Film CC : Carbon Composition MF : Metal Film

OMF : Oxide Metal Film VR : Variable Resistor FR : Fusible Resistor

(All CD and PF capacitors are ±5%, 50V and all resistors, ±5%, 1/6W unless otherwise noted.)

Location

Parts No. Description

No.

[#1:28ZH46P] [#2:32ZH46P]

CAPACITORS

C101 24794221 ELECTROIYTIC 04G, 16V 220UF M C102 24109102 CERAMIC CHIP, 50V B 1000PF K C103 24797100 ELECTROLYTIC, 50V 10UF M C104 24794221 ELECTROIYTIC 04G, 16V 220UF M C105 24109103 CERAMIC CHIP, 50V B 0.01UF K C107 24797229 ELECTROLYTIC, 50V 2.2UF M C108 24109103 CERAMIC CHIP, 50V B 0.01UF K C109 24503045 PLASTIC FILM, 63V 0.22UF J C110 24105101 CERAMIC CHIP, 50V CH 100PF J C111 24105101 CERAMIC CHIP, 50V CH 100PF J C201 24100104 CERAMIC CHIP, 25V F 0.1UF Z C210 24797229 ELECTROLYTIC, 50V 2.2UF M C211 24794100 ELECTROLYTIC, 16V 10UF M C215 24100104 CERAMIC CHIP, 25V F 0.1UF Z C250 24100104 CERAMIC CHIP, 25V F 0.1UF Z C251 24092743 CERAMIC CHIP, 10V F 0.47UF Z C252 24092743 CERAMIC CHIP, 10V F 0.47UF Z C253 24100104 CERAMIC CHIP, 25V F 0.1UF Z C254 24793101 ELECTROLYTIC, 10V 100UF M C255 24793470 ELECTROLYTIC CE04G 10V 47UF M C256 24793101 ELECTROLYTIC, 10V 100UF M C257 24793470 ELECTROLYTIC CE04G 10V 47UF M C258 24669100 ELECTROLYTIC, 50V 10UF M 3A C259 24669100 ELECTROLYTIC, 50V 10UF M 3A C260 24109103 CERAMIC CHIP, 50V B 0.01UF K C261 24109103 CERAMIC CHIP, 50V B 0.01UF K C262 24669100 ELECTROLYTIC, 50V 10UF M 3A C263 24669100 ELECTROLYTIC, 50V 10UF M 3A C264 24109103 CERAMIC CHIP, 50V B 0.01UF K C265 24109103 CERAMIC CHIP, 50V B 0.01UF K C266 24109103 CERAMIC CHIP, 50V B 0.01UF K C302 24214471 CERAMIC DISC, 500V B 470PF K C303 24214471 CERAMIC DISC, 500V B 470PF K C305 24795222 ELECTROLYTIC, 25V 2200UF M C308 24766221 ELECTROLYTIC, 50V 220UF M C309 24590152 PLASTIC FILM, 50V 1500PF J C310 24795222 ELECTROLYTIC, 25V 2200UF M C313 24082057 PLASTIC FILM, 100V 0.22UF J C315 24212222 CERAMIC DISC, 50V B 2200PF K C316 24795471 ELECTROLYTIC, 25V 470UF M

Location

Parts No. Description

No.

C318 24794471 ELECTROLYTIC, 16V 470UF M C320 24795471 ELECTROLYTIC, 25V 470UF M C321 24503051 PLASTIC FILM, 63V 0.68UF J C322 24617915 ELECTROLYTIC, 50V 1UF K 3A LI C323 24503049 PLASTIC FILM, 63V 0.47UF J C325 24590223 PLASTIC FILM, 50V 0.022UF J C326 24797010 ELECTROLYTIC, 50V 1UF M C327 24794471 ELECTROLYTIC, 16V 470UF M C331 24503038 PLASTIC FILM, 63V 0.056UF J C332 24212102 CERAMIC DISC, 50V B 1000PF K C366 24082052 PLASTIC FILM, 100V 0.082UF J C370 24794100 ELECTROLYTIC, 16V 10UF M C372 24797470 ELECTROLYTIC 04G, 50V 47UF M C373 24797470 ELECTROLYTIC 04G, 50V 47UF M C410 24092341 CERAMIC DISC, 2KV R 470PF K C413 24214392 CERAMIC DISC, 500V B 3900PF K C416 24676330 ELECTROLYTIC, 100V 33UF M 3A C417 24214391 CERAMIC DISC, 500V B 390PF K C419 24212102 CERAMIC DISC, 50V B 1000PF K C420 24794101 ELECTROLYTIC, 16V 100UF M C421 24503041 PLASTIC FILM , 63V 0.1UF J C422 24232103 CERAMIC DISC, 50V F 0.01UF Z C423 #1 24503459 PLASTIC FILM, 400V 0.068UF J

#2 24503124 PLASTIC FILM CQ92 T 400V 68000PF J C430 24503047 PLASTIC FILM, 63V 0.33UF J C431 24232103 CERAMIC DISC, 50V F 0.01UF Z C432 24591103 PLASTIC FILM, 50V 0.01UF J C433 24085988 ELECTROLYTIC, NONPOLAR, 50V 1.0UF M 7L

C441 24503291 PLASTIC FILM CF92 T 400V R62UF J C444 #1 24503199 PLASTIC FILM CF92 T 1800VH 7500PF H

#2 24503195 PLASTIC FILM, 1800VH 5100PF H C445 24828473 PLASTIC FILM, 200V 0.047UF J C446 24679330 ELECTROLYTIC, 250V 33UF M 3A C447 #1 24829203 PLASTIC FILM, 400V 20000PF J

#2 24829363 PLASTIC FILM, 400V 0.036UF J C448 24640908 ELECTROLYTIC, 160V 33UF M 3A LI C449 24763101 ELECTROLYTIC, 16V 100UF M C450 24206010 ELECTROLYTIC, 50V 1.0UF M 7L 3A C451 24763101 ELECTROLYTIC, 16V 100UF M C452 24591102 PLASTIC FILM, 50V 1000PF J C453 24763221 ELECTROLYTIC, 16V 220UF M C454 24109103 CERAMIC CHIP, 50V B 0.01UF K C455 24797010 ELECTROLYTIC, 50V 1UF M C456 24109103 CERAMIC CHIP, 50V B 0.01UF K

Location

No.

Parts No. Description

Location

No.

Parts No. Description

C457 24100104 CERAMIC CHIP, 25V F 0.1UF Z C458 24109103 CERAMIC CHIP, 50V B 0.01UF K C459 24109103 CERAMIC CHIP, 50V B 0.01UF K C460 24591223 PLASTIC FILM, 50V 0.022UF J C461 #1 24503196 PLASTIC FILM CF92 T 1800VH 5600PF H

#2 24503197 PLASTIC FILM CF92 T 1800VH 6200PF H C462 24666101 ELECTROLYTIC 04Q, 16V 100UF M 3A C464 24503149 PLASTIC FILM, 250V 3.3UF C466 #1 24503261 PLASTIC FILM CF92 T 1250VH 6800PF H

#2 24503244 PLASTIC FILM CF92 T 1250VH 4300PF H C467 24503253 PLASTIC FILM, 1250VH 0.01UF H C468 24503253 PLASTIC FILM, 1250VH 0.01UF H C470 24794470 ELECTROLYTIC, 16V 47UF M C471 24503046 PLASTIC FILM, 63V 0.27UF J C472 24503049 PLASTIC FILM, 63V 0.47UF J

C473 24669010 ELECTROLYTIC, 50V 1UF M 3A C475 24820822 PLASTIC FILM, 630V 8200PF J C476 24794220 ELECTROLYTIC, 16V 22UF M C477 #1 24591471 PLASTIC FILM, 50V 470PF J C478 24591563 PLASTIC FILM, 50V 0.056UF J C481 24085988 ELECTROLYTIC, NONPOLAR, 50V 1.0UF M 7L C482 24212152 CERAMIC DISC, 50V B 1500PF K C491 #1 24503190 PLASTIC FILM, 400V 0.12UF J

#2 24082637 PLASTIC FILM, 400V 0.1UF J

C492 #1 24503191 PLASTIC FILM, 400V 0.13UF J

#2 24082637 PLASTIC FILM, 400V 0.1UF J

C494 #1 24503049 PLASTIC FILM, 63V 0.47UF J C495 24092343 CERAMIC DISC, 2KV 680PF K C496 24092343 CERAMIC DISC, 2KV 680PF K C498 24591822 PLASTIC FILM, 50V 8200PF J C504 24100104 CERAMIC CHIP, 25V F 0.1UF Z C505 24100104 CERAMIC CHIP, 25V F 0.1UF Z C506 24100473 CERAMIC CHIP, 25V F 47000PF Z C507 24100104 CERAMIC CHIP, 25V F 0.1UF Z C508 24100104 CERAMIC CHIP, 25V F 0.1UF Z C509 24105220 CERAMIC CHIP, 50V CH 22PF J C510 24100473 CERAMIC CHIP, 25V F 47000PF Z C511 24100104 CERAMIC CHIP, 25V F 0.1UF Z C512 24100104 CERAMIC CHIP, 25V F 0.1UF Z C513 24100104 CERAMIC CHIP, 25V F 0.1UF Z C514 24100104 CERAMIC CHIP, 25V F 0.1UF Z C515 24100104 CERAMIC CHIP, 25V F 0.1UF Z C516 24100104 CERAMIC CHIP, 25V F 0.1UF Z C517 24100104 CERAMIC CHIP, 25V F 0.1UF Z C518 24100104 CERAMIC CHIP, 25V F 0.1UF Z C519 24100104 CERAMIC CHIP, 25V F 0.1UF Z C520 24100104 CERAMIC CHIP, 25V F 0.1UF Z C521 24100104 CERAMIC CHIP, 25V F 0.1UF Z C523 24100104 CERAMIC CHIP, 25V F 0.1UF Z C524 24100104 CERAMIC CHIP, 25V F 0.1UF Z C525 24100473 CERAMIC CHIP, 25V F 47000PF Z C526 24100104 CERAMIC CHIP, 25V F 0.1UF Z C527 24100104 CERAMIC CHIP, 25V F 0.1UF Z C528 24100104 CERAMIC CHIP, 25V F 0.1UF Z C529 24100104 CERAMIC CHIP, 25V F 0.1UF Z C530 24105220 CERAMIC CHIP, 50V CH 22PF J C531 24100104 CERAMIC CHIP, 25V F 0.1UF Z C540 24100104 CERAMIC CHIP, 25V F 0.1UF Z C541 24100104 CERAMIC CHIP, 25V F 0.1UF Z C542 24100104 CERAMIC CHIP, 25V F 0.1UF Z C543 24109103 CERAMIC CHIP, 50V B 0.01UF K C544 24100104 CERAMIC CHIP, 25V F 0.1UF Z C545 24100104 CERAMIC CHIP, 25V F 0.1UF Z C546 24109103 CERAMIC CHIP, 50V B 0.01UF K C547 24109103 CERAMIC CHIP, 50V B 0.01UF K C548 24763101 ELECTROLYTIC, 16V 100UF M C549 24100104 CERAMIC CHIP, 25V F 0.1UF Z C550 24100104 CERAMIC CHIP, 25V F 0.1UF Z C551 24206010 ELECTROLYTIC, 50V 1.0UF M 7L 3A

C552 24797479 ELECTROLYTIC, 50V 4.7UF M C553 24100104 CERAMIC CHIP, 25V F 0.1UF Z C556 24100104 CERAMIC CHIP, 25V F 0.1UF Z C557 24100104 CERAMIC CHIP, 25V F 0.1UF Z C558 24109103 CERAMIC CHIP, 50V B 0.01UF K C559 24109103 CERAMIC CHIP, 50V B 0.01UF K C560 24503047 PLASTIC FILM, 63V 0.33UF J C562 24206010 ELECTROLYTIC, 50V 1.0UF M 7L 3A C564 24109103 CERAMIC CHIP, 50V B 0.01UF K C601 24794100 ELECTROLYTIC, 16V 10UF M C602 24794100 ELECTROLYTIC, 16V 10UF M C603 24794100 ELECTROLYTIC, 16V 10UF M C604 24794100 ELECTROLYTIC, 16V 10UF M C605 24797339 ELECTROLYTIO CE04G, 50V 3.3UF M C606 24794100 ELECTROLYTIC, 16V 10UF M C607 24794100 ELECTROLYTIC, 16V 10UF M C608 24092743 CERAMIC CHIP, 10V F 0.47UF Z C609 24109152 CERAMIC CHIP, 50V B 1500PF K C610 24109152 CERAMIC CHIP, 50V B 1500PF K C611 24109103 CERAMIC CHIP, 50V B 0.01UF K C612 24092743 CERAMIC CHIP, 10V F 0.47UF Z C613 24092616 CERAMIC CHIP, 16V B 0.33UF K C614 24109103 CERAMIC CHIP, 50V B 0.01UF K C615 24109152 CERAMIC CHIP, 50V B 1500PF K C616 24100104 CERAMIC CHIP, 25V F 0.1UF Z C617 24109103 CERAMIC CHIP, 50V B 0.01UF K C618 24105471 CERAMIC CHIP, 50V CH 470PF J C619 24092616 CERAMIC CHIP, 16V B 0.33UF K C620 24105060 CERAMIC CHIP, 50V CH 6PF D C621 24105560 CERAMIC CHIP, 50V CH 56PF J C622 24105030 CERAMIC CHIP, 50V CJ 3PF C C623 24092616 CERAMIC CHIP, 16V B 0.33UF K C624 24109222 CERAMIC CHIP, 50V B 2200PF K C625 24100104 CERAMIC CHIP, 25V F 0.1UF Z C626 24092616 CERAMIC CHIP, 16V B 0.33UF K C627 24105560 CERAMIC CHIP, 50V CH 56PF J C628 24105471 CERAMIC CHIP, 50V CH 470PF J C630 24109103 CERAMIC CHIP, 50V B 0.01UF K C632 24100104 CERAMIC CHIP, 25V F 0.1UF Z C633 24092538 CERAMIC CHIP, 10V F 1UF Z C634 24105560 CERAMIC CHIP, 50V CH 56PF J C635 24105471 CERAMIC CHIP, 50V CH 470PF J C636 24092616 CERAMIC CHIP, 16V B 0.33UF K C637 24092616 CERAMIC CHIP, 16V B 0.33UF K C638 24109222 CERAMIC CHIP, 50V B 2200PF K

C651 24669100 ELECTROLYTIC, 50V 10UF M 3A C652 24667470 ELECTROLYTIC CE04Q, 25V 47UF M 3A C653 24667470 ELECTROLYTIC CE04Q, 25V 47UF M 3A C654 24669100 ELECTROLYTIC, 50V 10UF M 3A C655 24667470 ELECTROLYTIC CE04Q, 25V 47UF M 3A C656 24668102 ELECTROLYTIC, 35V 1000UF M 3A C657 24668102 ELECTROLYTIC, 35V 1000UF M 3A C658 24668102 ELECTROLYTIC, 35V 1000UF M 3A C659 24503042 PLASTIC FILM, 63V 0.12UF J C660 24232103 CERAMIC DISC, 50V F 0.01UF Z C661 24503042 PLASTIC FILM, 63V 0.12UF J C662 24797010 ELECTROLYTIC, 50V 1UF M C663 24797010 ELECTROLYTIC, 50V 1UF M C667 24212102 CERAMIC DISC, 50V B 1000PF K C668 24212102 CERAMIC DISC, 50V B 1000PF K C669 24797330 ELECTROLYTIC, 50V 33UF M C670 24797330 ELECTROLYTIC, 50V 33UF M C680 24666471 ELECTROLYTIC 04Q, 16V 470UF M 3A C681 24794470 ELECTROLYTIC, 16V 47UF M C682 24794100 ELECTROLYTIC, 16V 10UF M C683 24794100 ELECTROLYTIC, 16V 10UF M C684 24794100 ELECTROLYTIC, 16V 10UF M C685 24794100 ELECTROLYTIC, 16V 10UF M C687 24797478 ELECTROLYTIC, 50V 0.47UF M

+ 37 hidden pages

Toshiba 28ZH46P, 32ZH46P Schematic

TABLE OF CONTENTS

CHAPTER 1 GENERAL ADJUSTMENTS

SAFETY INSTRUCTIONS

SERVICE MODE

DESIGN MODE

SERVICE MODE ADJUSTMENTS

CIRCUIT CHECK

LOCATION OF CONTROLS

CHASSIS AND CABINET REPLACEMENT PARTS LIST