Toshiba 42AV625D Schematic

SERVICE MANUAL

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LCD Color Television

42AV625D

Ver. 2.01

This model is classified as a green product (*1), as indicated by the underlined serial number. This

Service Manual describes replacement parts for the green product. When repairing this green

product, use the part(s) described in this manual and lead-free solder (*2).

For (*1) and (*2), refer to

© TOSHIBA CORPORATION

GREEN PRODUCT PROCUREMENT

and

LEAD-FREE SOLDER

.

ADJUSTMENT

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Service Mode

Entering to Service Mode

1. Press button once on remote control.

↓↓↓↓

↓↓↓↓

Service Mode display

2. Press button again and hold button down.

3. While holding the button, press MENU
button on TV set.

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Displaying the Adjustment Menu

Press MENU button on TV.

Service Mode

Press

Adjustment Mode

↑↑↑↑ ↓↓↓↓

Press

Key Function in the Service Mode

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

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

memory IC.

button (on remote control)

Test signal selection

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Selection of the adjustment items PROGRAMME (on TV or remote control)

Change of the data value Volume +/- (on TV or remote control)

Adjustment menu mode ON/OFF MENU button (on TV)

Initialization of the memory (IC510) "i+" + PROGRAMME button on TV

Reset the count of operating

protect circuit to "00"

Turn off TV Micro I2C bus communication "i+" + Volume button on TV

"RCUT" selection 1 button

"GCUT" selection 2 button

"BCUT" selection 3 button

"CNTX" selection 4 button

"COLC" selection 5 button

"UVTT" selection 6 button

Automatic A/D Adjustment

(PC, Component, Composite (PAL, NTSC))

Self diagnostic display ON/OFF 9 button

"i+" + PROGRAMME button on TV

7 button

Selecting the Adjusting Item

Every pressing of PROGRAMME button in the service mode changes the adjustment
items in the order of table below. ( button for reverse order)

SETTING & ADJUSTING DATA

[ SERVICE MODE ]

ADJUSTING ITEMS AND DATA IN THE SERVICE MODE:

Note:

The image system data of RCUT-BDRV is different by each image format.

The PAL value is indicated in the table.

Item Name of adjustment Address

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RCUT RED CUT --

GCUT GREEN CUT --

BCUT BLUE CUT --

RDRV RED DRIVE --

GDRV GREEN DRIVE --

BDRV BLUE DRIVE --

BRTC BRIGHTNESS CENTER --

COLC COLOR CENTER --

UVTT BASE BAND TINT --

CNTX CONTRAST MAX --

OPT1 TV SET OPTION 1 00F1

OPT2 TV SET OPTION 2 00F2

OPT3 TV SET OPTION 3 00F3

OPT4 TV SET OPTION 4 (PANEL OPT DATA FOR VENDOR & SIZE) 00F4

OPT5 TV SET OPTION 5 00F5

SETID MODEL ID 00FE

OPT6 TV SET OPTION 6 00E8

OPT7 TV SET OPTION 7 00E9

OPT8 TV SET OPTION 8 00EA

HTLID HOTEL ID 00E0

Factory preset data will be loaded after setting Model ID data.

(Refer to Initialization of Memory Data of IC510 and setting data of signal board.)

Adjusting the Data

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.

Setting TVOP

Enter to service mode and select menu of TVOP by pressing P or P during display of

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adjustment menu. After selecting TVOP, press + or - to set I2C check function to
disable or enable as below.

TVOP FUNCTION DESCRIPTION 1 0 (Normal)

D5 (bit5) I2C check between TV-Micro and Standby-Micro (WDT) Disable Enable

Setting Panel Option Data

For a complete list of OPT4 data values corresponding to the model, see MODEL ID

TABLE.
Enter to service mode and select menu of OPT4 by pressing P or P during display of

adjustment menu. After selecting OPT4, press + or - to set OPT4 value as table
below.

OPT4

Ex. OPT4 value 0x17 indicates that panel vendor is LGD and panel size is 42.

Upper 4bit is decided as below table.

OPT4 (Upper 4bit)

Panel

vendor

LGD 0 0 0 1

SHARP 0 0 1 0

CMO 0 0 1 1

AUO 0 1 0 0

IPS 0 1 0 1

SAMSUNG 0 1 1 0

D7

(bit7)

D6

(bit6)

D5

(bit5)

D4

(bit4)

D3

(bit3)

D2

(bit2)

Lower 4bit is decided as below table.

D1

(bit1)

D0

(bit0)

OPT4 (Lower 4bit)

Panel size 32 0 1 0 1

D7

(bit7)

D6

(bit6)

D5

(bit5)

D4

(bit4)

D3

(bit3)

D2

(bit2)

D1

(bit1)

D0

(bit0)

37 0 1 1 0

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42 0 1 1 1

46 1 0 1 0

47 1 0 0 0

52 1 0 1 1

55 1 1 0 0

Convert from Bit (Binary) to Hex

The table for converting from bit (D7-D0) to hex (0x**).

BIT (Binary)

High nibble

Low nibble

HEX

D7 D6 D5 D4

D3 D2 D1 D0

0

1

2

3

4

5

6

7

8 1

9 1

A 1

B 1

0 0 0 0

0 0 0

0 0

0 0

0

0

0

0

1

1

1 1

1 1 1

0 0 0

0 0

0

0

1

1 1

0 0

0

1

1 1

1

0

1

0

1

0

C 1 1

D 1 1

E 1 1 1

F 1 1 1 1

0 0

0

1

0

E.g. If Bit D7-0 = 0101 1010, Hex data is 0x5A.

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Exit from Service Mode

Pressing POWER button to turn off the TV once.

Initialization of TV Micro Data

After replacing Digital Board, the following initialization is required.

1) Enter the service mode.

2) Select menu of ID by pressing P or P during display of adjustment menu in the
service mode.

3) Change ID data into MODEL ID to initialize by pressing + or -, refer to
"MODEL ID TABLE".

For example, if want to initialize 42AV635D, change MODEL ID into "0x0C".

Note:

MODEL ID is hex value.

4) Change PANEL OPTION data into OPT4 to initialize by pressing + or -, refer to
"OPT 4" tables.

For example, if want to initialize 42 LGD PANEL, change OPT4 into "0x17".

Note:

OPT4 is hex value.

5) Enter the service mode and select version check mode. Confirm if model name and

model id set is correct. If not, do over again from the start.

Note:

In case initialization by setting wrong MODEL ID is done, there is a possibility of

abnormal display.

6) Execute initialization of the memory

Refer to "KEY FUNCTION IN THE SERVICE MODE".
Press "i+" + PROGRAMME button on TV.

7) Check the picture carefully. If necessary, adjust any adjustment item above.

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Perform "Auto tune" on the owner's manual.

MODEL ID TABLE

MODEL ID (HEX) Model name Panel vendor OPT4 Data (HEX)

0x0C 42AV625D/AV635D LGD 0x17

Initializing Data setting flowchart after replacing the Signal Unit

Test Signal Selection

Every pressing of button on the remote control changes the built-in test patterns on
screen as described below in Service Mode.

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Picture Signal

Red raster

Green raster

Blue raster

All Black

All White

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 is executed properly.

2. During diagnosis, the following displays are shown.

* Self check displays and items are subject to the models.

TV CPU SW Version:

NG: No Sync Detected

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Version information of TV Micro SW: Display 1 byte data. (Hex)

EEPROM Version:

Version information of TV Micro EEPROM: Display 1 byte data. (Hex)

Power On Time: Total time the TV has been powered on. (Unit: Hours) (Decimal)

Main PLL: Displays Data 11 - Data 18 (8 bytes) of tuner control data. (Hex)

BL_STATUS:

BL_STATUS 1 : The total number of times that the panel did not light. (backlight double-

light also failed) (Decimal)

BL_STATUS 2 : The number of times that the backlight failed to light. (Decimal)

Block:

UV : ATV reception mode

V1 - V7 : VIDEO 1-7 input mode.

DTV : DTV mode

For current input: OK: Signal Sync Detected

TV Status: "official" is normal.

Bus Errors: "none" is normal.

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Block:

UV ATV

V1

V2

V3

V4 HDMI1

V5 HDMI2

V6 HDMI3

V7 HDMI4

V8

V9 --

PC PC

YUV --

DTV DTV (Digital Only)

(SCART (FULL))

(SCART (S+AV))

(Component/Composite)

1

2

3

Version Check Mode

1. Press "9" button twice on remote control during display of adjustment menu in the

service mode.

2. During Version Check, the following displays are shown.

* Version check displays and items are subject to the models.

TV Model

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TV Model ID

Boot Code Version

Core SW Version

Seine SW Version

TV Micro SW Version:

Version information of TV Micro SW: Display 1 byte data.

TV Micro EEPROM Version:

Version information of EEPROM: Display 1 byte data.

EDID Checksum:

Pass/Fail Result Listed for HDMI 1-4 (left to right)

Global Data Version

LCD Panel Opt:

Panel Option (OPT4) Data: Display 1 byte data.

(see Setting Panel Option Data)

Factory Test Status: Optional Data Bits that can be used by factory.

A/D Adjust:

--COMP : Component input

--RGB : RGB (SCART or PC) input

--OK:

A/D adjustment set correctly.

--NG : A/D adjustment set incorrect.

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-- : A/D adjustment is not needed because the picture format is not used.

Setting Hotel Mode

Enter to service mode and select Hotel Mode menu by pressing P or P .
After selecting Hotel Mode, press + to enter details setting in Hotel Mode.

To select menu, press P or P and press OK to enter the adjustment menu of following

table data.
To move the cursor in the adjustment, press + or -.

1. By pressing P or P , following table data setting will change the value either 1 or 0

on selected items as follows;

OPT2

OPT2 FUNCTION DESCRIPTION 1

D7 (bit7) Enable mode that TV standby will be

appeared in forced when turning the

main power ON

D6 (bit6) Enable mode that TV On will be

appeared in forced when turning the

main power ON

D5 (bit5) FRONT Key Disable Enable

D4 (bit4) All keys except input selector key

(Video/TV)

D3 (bit3) User remote control operation Disable

Enable

(This function is ignored

when D6 is set to 1.)

Enable Disable

Disable Enable

(Only setting of Service

mode and Super User

mode are possible.)

(Normal)

Disable

Enable

0

D2 (bit2) Disable SET UP MENU except

language.

(tuning etc.)

D1 (bit1) Disable SETUP MENU Disable Enable

D0 (bit0) HOTEL Mode On (Enable the setting of Off

Disable

(Display language only)

Enable

D1 to D7) (Normal)

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VOLUX

Set VOLUX as following.

1) Set speaker volume to 100. (Any value is OK, but 100 is better to check sound level.)

2) Down value of VOLUX until finding suitable sound volume level.

VOLUX FUNCTION DESCRIPTION 1 0 (Normal)

D7 (bit7) ~

D0 (bit0)

Max Limiter of Volume Control 0x00 ~ 0x7F (Normal: 0x7C)

OPT6

OPT6 FUNCTION DESCRIPTION 1 0 (Normal)

D7 (bit7) Enable mode that POS or VIDEO program

number will be appeared in forced when turn

ON the main power

D6 (bit6) ~

D0 (bit0)

POS or VIDEO program number 0 ~ 127 [decimal] (Normal: 0)

Enable Disable

POS number: 0 ~ 99

VIDEO number: 100 ~ 127

(DTV = 100, VIDEO = 101,

VIDEO = 102..)

100 is used as ATV when

DTV option is disable.

OPT7

OPT7 FUNCTION DESCRIPTION 1 0 (Normal)

D7 (bit7) Enable mode that speaker volume will be set

in forced when turning the main power ON

D6 (bit6) ~

D0 (bit0)

Forced speaker volume 0 ~ 100 [decimal] (Normal: 0)

Enable Disable

Value above 100 is no effect.

OPT8

OPT8 FUNCTION DESCRIPTION 1 0 (Normal)

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D7 (bit7) Hotel Mode RS232C Enable Disable

D6 (bit6) ~

No use - -

D4 (bit4)

D3 (bit3) RF tuning operation by position up/down on

remote or front panel of the TV set, number,

and previous key when HDMI or PC input

D2 (bit2) Enable mode that picture mode will be set in

forced when turning the main power ON

D1 (bit1) ~

Forced picture mode 0 [dec]: Auto View (Normal)

D0 (bit0)

LED Indications

Disable Enable

Enable

Disable

(Display

language only)

1 [dec]: Dynamic

2 [dec]: Standard

3 [dec]: Movie

The LEDs on the TV (at the bottom of the TV) indicate the TV's status, as described below.

There are 3 LEDS (from left to right): PowerOn/Standby, OnTimer, ProgramTimer.



PowerOn/Standby LED



Red ON (solid) = The TV power cord is plugged in, but TV is in Standby.



Green ON (solid) = The TV is powered on.



OnTimer LED



Green ON (solid) = The OnTimer is set.



ProgrammeTimer LED



Orange ON (solid) = The On timer is set.



Red ON (solid) = The On timer is operating.

LED Indication Condition Solution

1 PowerOn/Standby LED:

Plug the power cord in again and turn ON

Plug the power cord in again and turn ON

Plug the power cord in again and turn ON

Plug the power cord in again and turn ON

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Green blinks continuously.

Other LEDs: OFF.

BUS Error Turn OFF the TV and unplug the power

cord.

the TV.

2 PowerOn/Standby LED:

Red blinks continuously.

Other LEDs: OFF.

3 PowerOn/Standby LED:

Orange blinks continuously.

Other LEDs: OFF.

4 OnTimer LED:

Green blinks continuously.

Other LEDs: OFF.

Power Protect

Error

Back Light Error Turn OFF the TV and unplug the power

Fan Stop Error Turn OFF the TV and unplug the power

Turn OFF the TV and unplug the power

cord.

the TV.

cord.

the TV.

cord.

the TV.

DTV Software Update - While Watching TV

1. Extract the update files onto a USB drive.

2. Turn on the TV set.

3. Connect the USB drive to the USB port on the side panel.

The following message is displayed:

4. Highlight OK and press the OK key on the remote.

5. The status of the update is displayed during update.

Never turn off the power while updating.

After several seconds, the orange PowerOn/Standby LED and the green OnTimer

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6. When the update is complete, the following message is displayed.

7. Disconnect the USB drive.

8. The TV set is automatically turned off and then on.

DTV Software Update - from Boot Up

1. Extract the update files onto a USB drive.

2. Unplug the TV.

3. Connect the USB drive to the USB port on the side panel.

4. Press and hold the menu button on the control panel of the TV set.

5. Plug in the TV and watch the LEDs on the front of the TV set.

a.

LED light is on, indicating that the TV set is being updated.

b. Once the update started, release the menu button.

6. When only the PowerOn/Standby LED is turned to green, the update has completed

successfully.

If the update is unsuccessful, the PowerOn/Standby LED is red.

7. Unplug the TV set.

8. Disconnect the USB drive.

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DISMANTLING PRECAUTION

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Dismantling Precaution

Strict control is required for screw type fixing Back Cover attachment.

Alternative use may cause the damages to the Cabinet, Frame, or PC Boards due to over

length.

Use the correct screw that was put off from the each screw hole.

Do not alter screws for the Back Cover attachment.

<Illustration for the screw types and the positions>

The following illustration shows the visible screws from the outside of the TV cabinet only.

FUNCTION AND OPERATION

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Remote Control

Simple at-a-glance reference of your remote control.

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FUNCTION AND OPERATION

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TV Front and Side Panel Control

FUNCTION AND OPERATION

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Tuning the Television for the First Time

Before switching on the television, put your decoder and media recorder, if applicable, to

Standby

. To set up the television, use the buttons on the remote control.

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SAFETY INSTRUCTION

should enter the mouth, rinse the mouth thoroughly with water. If the fluid should contact the

When attaching the LCD module to the LCD cover, position it appropriately and fasten

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Handling the LCD Module

Safety Precaution

In the event that the screen is damaged or the liquid crystal (fluid) leaks, do not breathe in or

drink this fluid.

Also, never touch this fluid. Such actions could cause toxicity or skin irritation. If this fluid

skin or clothing, wipe off with alcohol, etc., and rinse thoroughly with water. If the fluid

should enter the eyes, immediately rinse the eyes thoroughly with running water.

Precautions for Handling the LCD Module

CAUTION: The metal edges of the LCD module are sharp, handle it with

care.

The LCD module can easily be damaged during disassembly or reassembly; therefore,

always observe the following precautions when handling the module.

1.

at the position where the display can be viewed most conveniently.

2. Carefully align the holes at all four corners of the LCD module with the corresponding

holes in the LCD cover and fasten with screws. Do not strongly push on the module

because any impact can adversely affect the performance. Also use caution when

handling the polarized screen because it can easily be damaged.

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3. If the panel surface becomes soiled, wipe with cotton or a soft cloth. If this does not

remove the soiling, breathe on the surface and then wipe again.

If the panel surface is extremely solied, use a CRT cleaner as a cleaner. Wipe off the

panel surface by drop the cleaner on the cloth. Do not drop the cleaner on the panel.

Pay attention not to scratch the panel surface.

4. Leaving water or other fluids on the panel screen for an extended period of time can

result in discoloration or stripes. Immediately remove any type of fluid from the screen.

5. Glass is used in the panel, so do not drop or strike with hard objects. Such actions can

damage the panel.

6. CMOS-LSI circuitry is used in the LCD module, so avoid damage due to static

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electricity. When handling the module, use a wrist ground or anchor ground.

7. Do not expose the LCD module to direct sunlight or strong ultraviolet rays for an

extended period of time.

8. Do not store the LCD module below the temperature conditions described in the

specifications. Failure to do so could result in freezing of the liquid crystal due to cold

air or loss of resilience or other damage.

9. Do not disassemble the LCD module. Such actions could result in improper operation.

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10. When transporting the LCD module, do not use packing containing epoxy resin

(amine) or silicon resin (alcohol or oxim). The gas generated by these materials can

cause loss of polarity.

PANEL IDENTIFICATION

name, the identification marking will be shown at the last digit of the set serial number on the

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Panel Identification

If the several panels are alternatively used in the same model without amending the model

specification label on the back cover.

In servicing, do not alter the panel because several setting and parts are different.

Marking Panel Vendor Marking Panel Vendor Marking Panel Vendor

A AUO J

B

C CMO L LGD U

D

E

F

G

H IPS R

K SAMSUNG T

M

N

P

Q

S SHARP

V

W

X

Y

Z

With this alternative use, some of key parts may differ and their combinations are

indicated with the suffix marking on the location number in the part list

(Miscellaneous).

e.g.

Location No. Part No. Description

B001A

B001B

MZ01A

MZ01B

Please refer to the Parts List for correct part numbers.

75XXXXXX LCD Panel, 32" LGD

75XXXXXX LCD Panel, 32" AUO

75XXXXXX LDVS Cable for 32" LGD Panel

75XXXXXX LDVS Cable for 32" AUO Panel

U02

A

KEY

U01A
MAIN

U04A LED

POWER

LOGO ILLUMINATION

U03A

AC SW

U04B RMT

SAFETY INSTRUCTION

Always keep tools, components of the product, etc away from the children, These items

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WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "SAFETY

PRECAUTION" AND "PRODUCT SAFETY NOTICE" INSTRUCTIONS BELOW.

Safety Precaution

WARNING: SERVICING SHOULD NOT BE ATTEMPTED BY ANYONE

UNFAMILIAR WITH THE NECESSARY PRECAUTIONS ON THIS RECEIVER.

THE FOLLOWING 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 disconnect the power plug before any disassembling of the product. It may

result in electrical shock.

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.

4.

may cause injury to children.

5. Depending on the model, use an isolation transformer or wear suitable gloves when

servicing with the power on, and disconnect the power plug to avoid electrical shock

when replacing parts. In some cases, alternating current is also impressed in the

chassis, so electrical shock is possible if the chassis is contacted with the power on.

6. Always use the replacement parts specified for the particular model when making

repairs. The parts used in products require special safety characteristics such as

inflammability, voltage resistance, etc. therefore, use only replacement parts that have

NEVER remodel the product in any way. Remodeling can result in improper operation,

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these same characteristics. Use only the specified parts when the mark is indicated
in the circuit diagram or parts list.

7. Parts mounting and routing dressing of wirings should be the same as that used

originally. For safety purposes, insulating materials such as isolation tube or tape are

sometimes used and printed circuit boards are sometimes mounted floating. Also make

sure that wirings is routed and clamped to avoid parts that generate heat and which use

high voltage. Always follow the manufactured wiring routes / dressings.

8. Always ensure that all internal wirings are in accordance before re-assembling the

external casing after a repairing completed. Do not allow internal wiring to be pinched

by cabinets, panels, etc. Any error in reassembly or wiring can result in electrical

leakage, flame, etc., and may be hazardous.

9.

malfunction, or electrical leakage and flame, which may be hazardous.

10. Touch current check. (After completing the work, measure touch current to prevent an

electric shock.)



Plug the AC cord directly into the AC outlet. Do NOT use an isolation transformer

for this check.



Connect a measuring network for touch currents between each exposed metallic part

on the set and a good earth ground such as a water pipe.

Annex D

(normative)

Measuring network for TOUCH CURRENTS

Resistance values in orms (Ω).

V: Voltmeter or oscilloscope

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(r.m.s. or peak reading)

Input resistance : 1 MΩ
Input capacitance : 200 pF

Frequency range : 15 Hz to 1 MHz and d.c. respectively

Appropriate measures should be taken to obtain the correct value in case of non

Note:

sinusoidal waveforms.

The measuring instrument is calibrated by comparing the frequency factor of with the
solid line in figure F.2 of IEC 60990 at various frequencies. A calibration curve is
constructed showing the deviation of from the ideal curve as a function of frequency.

TOUCH CURRENT = /500 (peak value).



The potential at any point (TOUCH CURRENT) expressed as voltage and
does not exceed the following value:

The part or contact of a TERMINAL is not HAZARDOUS LIVE if:

a) The open-circuit voltage should not exceed 35 V (peak) a.c. or 60 V d.c. or, if a) is not

met.

b) The measurement of the TOUCH CURRENT shall be carried out in accordance with

IEC 60990, with the measuring network described in

The TOUCH CURRENT expressed as voltages and , does not exceed the
following values:

- for a.c. : = 35 V (peak) and = 0.35 V (peak);

- for d.c. : = 1.0 V

The limit values of = 0.35 V (peak) for a.c. and = 1.0 V for d.c. correspond to

Note:

the values 0.7 mA (peak) a.c. and 2.0 mA d.c.

Annex D

of this standard.

Product Safety Notice

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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 by 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 electrical shock, fire, or other hazards.

SPECIFICATION

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SCHEMATIC DIAGRAM

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Precaution

WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY

RADIATION PRECAUTION" FOR DIRECT VIEW CTV ONLY, "SAFETY

PRECAUTION" AND "PRODUCT SAFETY NOTICE" OF THIS MANUAL.

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 SAFETY

PRECAUTION and PRODUCT SAFETY NOTICE.

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 1/6 W 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 composition of 1/2 watt

1RF : Fuse resistor of 1 watt

10 W : 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

µF, and the values more than 1 in pF.

All capacitors are ceramic 50 V, unless otherwise noted as the following marks.

= Electrolytic capacitor

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= 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 chassis ground,

using a color bar signal with all controls at normal, line voltage at nominal AC 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.