Sony ICFDVD-57-TV Service manual

ICF-DVD57TV

General

Time display 12-hour system
Speaker 77 mm (3

1

⁄8 inches) dia,

6 Ω

Power outputs 1.8 W + 1.8 W (at 10%

harmonic distortion)
Power requirements 120 V AC, 60 Hz
Dimensions Approx. 400 × 123 × 322.5

mm (w/h/d)

(Approx. 15

3

⁄4 × 4 7⁄8 × 12 3⁄

4

inches) incl. projecting

parts and controls
Mass Approx. 4.8 kg (10 lb 9 oz)

Supplied accessories Mounting screws (4),

Template (1),

Spacers (4),

Remote control (1)

Design and specifications are subject to change
without notice.

DVD/CD player section

Emission duration Continuous
Laser output Less than 1,000 µW

(This output is the value
measured at a distance of
about 200 mm from the
objective lens surface on
the optical pick-up block
with 7 mm aperture.)

Frequency response: CD: 20 – 20,000 Hz +1/-1

dB
DVD Video: 20 – 22,000 Hz

+1/-1 dB
Wow and flutter: Below measurable limit
Output OPTICAL OUTPUT

Radio section

Frequency range FM : 87.5 – 108 MHz

AM: 530 – 1,710 kHz

SERVICE MANUAL

Ver. 1.0 2005.04

Manufactured under license from Dolby
Laboratories. “Dolby”, “Pro Logic”, and the
double-D symbol are trademarks of Dolby
Laboratories.

“DTS,” “DTS Digital Surround” and “DTS
Digital Out” are trademarks of Digital Theater
Systems, Inc.

US Model

Model Name Using Similar Mechanism NEW
Optical Pick-up Block Name KHM-310BAA

AUDIO POWER
SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 6–ohm loads, both channels driven from
100 – 10 000 Hz; rated 1.4 W per channel­minimum RMS power, with no more than 10
% total harmonic distortion in AC operation.

TV section

Television system American TV standard/

Channel coverage VHF: 2–13/UHF: 14–69/

Antenna 75-ohm external antenna

Screen type Wide LCD color monitor
Size 9 inches
System TFT active matrix
Number of dots 336,960 dots
Input 1 video, 1 audio

9-879-703-01

2005D05-1
© 2005.04

NTSC

CATV: 1–125

terminal for VHF/UHF

Sony Corporation

Personal Audio Group
Published by Sony Engineering Corporation

SPECIFICATIONS

LCD-TV DVD KITCHEN CLOCK RADIO

ICF-DVD57TV

r

Discs that this system cannot play

•CD-ROMs

•CD-Rs/CD-RWs other than those recorded in
the following formats:

— music CD format
— video CD format

•Data part of CD-Extras

•Super Audio CDs

•DVD-ROMs

•DVD-RAMs

•DVD Audio discs

•8 cm(3 inches) DVD discs

•Photo Movies created after recording in VR
mode by DVD Handycam.

•Progressive JPEG format file

•Discs with non-standard shapes (e.g., heart,
square, star) cannot be played on this unit.
Attempting to do so may damage the unit.
Do not use such discs.

•A disc with paper or stickers on it

•A disc that has the adhesive, cellophane tape,
or a sticker still left on it.

* A logical format of files and folders on a CD-

ROMs, defined by ISO (International
Organization for standardization).

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 ˚C

during repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

SAFETY CHECK-OUT

After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA
WT -540A. Follow the manuf acturers’ instructions to use these
instruments.

2. A battery-operated A C milliammeter . The Data Precision 245
digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated A C voltmeter . The “limit” indication
is 0.75 V, so analog meters must have an accurate low-v oltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V A C range are suitable. (See
Fig. A)

CAUTION

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.

About the discs this unit
can play

This unit can play the following discs:

•DVD VIDEO

•DVD-R/DVD+R

•DVD-RW/DVD+RW

•Video CD

•Audio CD

•CD-R/CD-RW

Disc type Label on the disc

DVD Videos

Video CD

Audio CDs

To Exposed Metal
Parts on Set

1.5 k

0.15 µF

Ω

Fig. A. Using an AC voltmeter to check AC leakage.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY P AR TS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

2

Earth Ground

AC
voltmete
(0.75 V)

“DVD VIDEO,” “DVD-R” and “DVD-RW” are
trademarks.

ICF-DVD57TV

Notes about CD-R/CD-RW/DVD-R/
DVD-RW/DVD+R/DVD+RW

•In some cases, CD-Rs, CD-RWs, DVD-Rs,
DVD-RWs, DVD+Rs or DVD+RWs cannot be
played on this system depending upon the
recording quality or physical condition of the
disc, or the characteristics of the recording
device. Furthermore, the disc will not play if
it has not been correctly finalized. For more
information, see the operating instructions
for the recording device.

•A disc recorded in packet write format
cannot be played.

DVD region code this unit can play.

This unit has a region code printed on the top
of the unit and will only play DVDs that are
labeled with identical region codes. DVDs
labeled

If you try to play any other DVD, the message
“WRONG REGION” will appear on the screen.
Depending on the DVD, the region code
indication may not appear even if the DVD is
prohibited by area restrictions.

ALL

will also be played on this unit.

Region code

Note on DTS*-encoded DVDs/CDs

To enjoy DTS Digital Surround™ playback, an
external 5.1-channel DTS Digital Surround™
decoder system must be connected to the
digital output of this unit.

* “DTS,” “DTS Digital Surround” and “DTS Digital

Out” are trademarks of Digital Theater Systems,
Inc.

TABLE OF CONTENTS

1. SERVICING NOTES ............................................... 4

2. GENERAL ................................................................... 5

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 6

3-2. Cabinet (Upper), Tray Lid Assy ...................................... 7

3-3. Mechanical Deck Assy .................................................... 7

3-4. Cabinet (Front) Assy ....................................................... 8

3-5. DVD Board...................................................................... 8

3-6. MAIN Board.................................................................... 9

3-7. Monitor Assy ................................................................... 9

3-8. Cabinet (Disp Rear)......................................................... 10

3-9. Shield (Disp).................................................................... 10

3-10. MONITOR Board,

Liquid Crystal Display Panel (LCD1)............................. 11

3-11. Belt, Tray ......................................................................... 12

3-12. Optical Pick-up KHM-310BAA...................................... 12

4. TEST MODE.............................................................. 13

5. ELECTRICAL ADJUSTMENTS ......................... 16

6. DIAGRAMS

6-1. Block Diagram – DVD Section – .................................... 22

6-2. Block Diagram – TUNER Section – ............................... 23

6-3. Block Diagram – AUDIO/PANEL Section – .................. 24

6-4. Block Diagram – MONITOR Section –.......................... 25

6-5. Block Diagram – POWER SUPPLY Section –............... 26

6-6. Printed Wiring Board – DVD Board (Side A) – .............. 28

6-7. Printed Wiring Board – DVD Board (Side B) –.............. 29

6-8. Schematic Diagram – DVD Board (1/2) – ...................... 30

6-9. Schematic Diagram – DVD Board (2/2) – ...................... 31

6-10. Printed Wiring Board – TU Board –................................ 32

6-11. Schematic Diagram – TU Board – .................................. 33

6-12. Printed Wiring Board

– MAIN Board (Component Side) – ............................... 34

6-13. Printed Wiring Board

– MAIN Board (Conductor Side) – ................................. 35

6-14. Schematic Diagram – MAIN Section (1/4) – .................. 36

6-15. Schematic Diagram – MAIN Section (2/4) – .................. 37

6-16. Schematic Diagram – MAIN Section (3/4) – .................. 38

6-17. Schematic Diagram – MAIN Section (4/4) – .................. 39

6-18. Printed Wiring Board – LCD Board –............................. 40

6-19. Printed Wiring Boards – SWITCH/TRANS Section ...... 41

6-20. Printed Wiring Board

– MONITOR Board (Component Side) – ....................... 42

6-21. Printed Wiring Board

– MONITOR Board (Conductor Side) – ......................... 43

6-22. Schematic Diagram – MONITOR Board (1/3) – ............ 44

6-23. Schematic Diagram – MONITOR Board (2/3) – ............ 45

6-24. Schematic Diagram – MONITOR Board (3/3) – ............ 46

7. EXPLODED VIEWS

7-1. Cabinet (Upper) Section.................................................. 70

7-2. Cabinet (Front) Section ................................................... 71

7-3. Cabinet (Lower) Section-1 .............................................. 72

7-4. Cabinet (Lower) Section-2 .............................................. 73

7-5. Monitor Section............................................................... 74

7-6. Mechanical Deck Section................................................ 75

8. ELECTRICAL PARTS LIST................................ 76

3

ICF-DVD57TV

SECTION 1

SERVICING NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electro­static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis­sion, observe from more than 30 cm away from the objectiv e lens.

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the lead­free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 °C higher than

ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if the

heated tip is applied for too long, so be careful!

• Strong viscosity

Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges oc­cur such as on IC pins, etc.

• Usable with ordinary solder

It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

4

Location of controls

Connection

Use this hookup if you subscribe to a CATV
System that does not require a cable box.

Basic Connections
(Connecting CATV or an
Antenna)

Connecting directly to cable or an antenna

1
2

3
4

5
6

7
8
9
0
qa

qs

SECTION 2

GENERAL

qd
qf
qg
qh
qj
qk

ql
w;
wa
ws

wd

ICF-DVD57TV

This section is extracted from
instruction manual.

Refer to the pages listed for details.

1 DISPLAY RELEASE
2 Disc Tray
3 TIMER dial and TIMER indicator, PUSH

START/STOP button

To operate the Cooking Timer.

4 Clock Display Window
5 Receptor for the remote control
6 CLOCK button

To set the clock.

7 MODE/SCREEN SIZE button

To set the screen mode, and to set the FM
mode.

8 TV MENU button

To change the screen settings.

9 ENTER button
0 SOUND button

To set the audio emphasis.

qa VOLUME +/– buttons
qs Speakers (left/right)
qd Z OPEN/CLOSE button
qf AUX button

To watch the AUDIO/VIDEO INPUT.

Remote control

1
2
3
4
5
6
7

8
9

0
qa
qs
qd

Refer to the pages listed for details.

1 SETUP button

Used to perform menu operations.

2 DISP (Display) button

To display the channel number or the time
information of the disc.

3 AUX button

To watch the AUDIO/VIDEO INPUT.

4 Number buttons
5 REPEAT button

To select the repeat mode (DVD/Video
CD/Audio CD).

6 .(Previous)/>(Next) buttons
7 tSLOW/m(Fast reverse)/TSLOW/M

(Fast forward) buttons

This can also be used in slow playback
mode.

8 TOP MENU button

To display the top menu of a recorded DVD,
or to set the PBC (playback control)
function on or off for the Video CD.

9 O (Return) button
q; v/V/b/B buttons
qa MENU button

To display the recorded DVD menu.

qs VOL (Volume) +/– buttons
qd MUTING button

To attenuate the volume.

* There is a tactile dot on the VOLUME + and

u buttons.

qg TV button

To turn on the TV.

qh DVD button

To turn on the player.

qj RADIO ON/BAND button

To turn on the radio.

To change the band (FM/AM).

qk OFF button

To turn off the AUX/TV/DVD/Radio
unit.

ql x (Stop) button
w; u (Play/Pause) button
wa TV CH/PRESET –, .(Previous)/

+ ,>(Next) button

To select a TV channel, to tune in a preset
station, to select the item during TV
MENU operation, or to adjust the screen
settings.

ws RADIO TUNE/TIME SET –, m(Fast

reverse)/+, M(Fast forward) button

To tune in a desired radio station or to set
the clock.
This can also be used in slow playback mode.

wd Monitor

qf
qg
qh
qj

The corresponding buttons of the
remote control function the same as
those on the unit.

Instructions in this manual describe how to use
the unit by mainly using the remote control.

qk
ql
w;

wa
ws

wd

wf
wg

* There is a tactile dot on the “5”, “u” and

“TUNE/CH+” buttons of the remote control.

qf TV button

To turn on the TV.

qg OFF button

To turn off the AUX/TV/DVD/Radio unit.

qh RADIO/BAND button

To turn on the radio.

qj DVD button

To turn on the unit.

qk TV MENU button

To change the screen settings.

ql u (Play/Pause) button
w; x (Stop) button
wa AUDIO button

To change the audio output/audio language.

ws ANGLE button

To select the multiple angles of view while
playing a DVD.

wd ENTER button

To enter a setting.

wf TUNE/CH +/– buttons

To select the desired TV channel, to tune in
to the desired station, to select the item
during TV MENU operation or to adjust
the screen settings.

wg SOUND button

To set the audio emphasis.

Setting the Clock

1

Plug in the unit.

“AM 12:00” will flash in the Clock Display
Window.

2

Press CLOCK for a few seconds.

You will hear a beep and the hour digits
will start to flash in the Clock Display
Window.

3

Press RADIO TUNE/TIME SET –, m(fast
reverse) or +, M(fast forward) until
the correct hour appears in the Clock
Display Window.

4

Press CLOCK (or ENTER) once.

The minute digits will flash.

5

Press RADIO TUNE/TIME SET –, m(fast
reverse) or +, M(fast forward) until
the correct minute appears in the Clock
Display Window.

6

Press CLOCK (or ENTER) once.

You will hear two short beeps and the
seconds start counting from zero.

Tips

• To set the current time rapidly, hold down

RADIO TUNE/TIME SET –, m(fast reverse) or +,
M(fast forward).

• To set the current time exactly to the seconds,
adjust the minute function in step 6 and then
press CLOCK (or ENTER) to synchronize it with a
time signal (such as the telephone time signal).

•In the 12-hour system: “AM 12:00” = midnight.

5

ICF-DVD57TV

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SET

3-2. CABINET (UPPER), TRAY LID ASSY

(Page 7)

3-3. MECHANICAL DECK ASSY

(Page 7)

SECTION 3

DISASSEMBLY

3-4. CABINET (FRONT) ASSY

(Page 8)

3-5. DVD BOARD

(Page 8)

3-6. MAIN BOARD

(Page 9)

3-7. MONITOR ASSY

(Page 9)

3-8. CABINET (DISP REAR)

(Page 10)

3-9. SHIELD (DISP)

(Page 10)

3-10. MONITOR BOARD,

LIQUID CRYSTAL DISPLAY PANEL (LCD1)
(Page 11)

3-11. BELT, TRA Y

(Page 12)

3-12. OPTICAL PICK-UP

KHM-310BAA
(Page 12)

6

Note: Follow the disassembly procedure in the numerical order given.

s

3-2. CABINET (UPPER), TRAY LID ASSY

4

eight screws
(B3)

7

cabinet (upper)

3

Turn on the power supply, and press the
open/close button to close the tray.

6

4

two screws
(B3)

5

screw (B3)

ICF-DVD57TV

4

eight screw
(B3)

2

tray lid assy

3-3. MECHANICAL DECK ASSY

3

three screws
(B3)

6

mechanical deck assy

4

1

Turn on the power supply, and press the
open/close button to open the tray.

1

flexible flat (24 core) cable
(CN702)

2

connector
(CN703)

5

flexible flat (5 core) cable
(CN351)

7

ICF-DVD57TV

r

3-4. CABINET (FRONT) ASSY

2

flexible flat (16 core) cable
(CN602)

4

two screws
(B2.6)

5

claw

1

flexible flat (12 core) cable
(CN601)

3

flexible flat (9 core) cable
(CN403)

6

cabinet (front) assy

3-5. DVD BOARD

5

three claws

2

flexible flat (8 core) cable
(CN704)

1

flexible flat (24 core) cable
(CN701)

5

4

two screws
(B2.6)

claw

4

four screws
(B2.6)

3

5

DVD board

connecto
(CN705)

6

shield (DVD lower)

8

3-6. MAIN BOARD

e

4

three screws
(B2.6)

5

3

terminal
(CN902)

MAIN board

2

connector
(CN901)

2

four connectors
(CN403, CN404, CN405, CN406)

2

two connectors
(CN302, CN401)

4

three screws
(B2.6)

1

ICF-DVD57TV

flexible flat (11 core) cabl
(CN10)

3-7. MONITOR ASSY

5

Push the button (release).

4

four screws

1

four connectors
(CN403, CN404, CN405, CN406)

6

7

monitor assy

2

four claws

3

cover (shaft)

9

ICF-DVD57TV

)

s

3-8. CABINET (DISP REAR)

2

three claws

3

two sliders (DISP)

2

six claws

4

cabinet (DISP rear

2

three claws

3-9. SHIELD (DISP)

1

two screws

2

two claws

1

two screws

2

three claws

1

three screws

10

2

shield (DISP)

1

two screw

3-10. MONITOR BOARD, LIQUID CRYSTAL DISPLAY PANEL (LCD1)

)

1

four connectors
(CN1403, CN1404, CN1405, CN1406

4

screw

6

8

bracket (DISP)

7

screw

MONITOR board

2

connector
(CN1801)

4

screw

5

two screws

8

bracket (DISP)

ICF-DVD57TV

qa

two adhesive tapes

3

LCD flexible board
(CN1802)

qs

7

screw

liquid crystal display panel
(LCD1)

9

q;

panel (DISP)

qa

two adhesive tapes

11

ICF-DVD57TV

3-11. BELT, TRAY

4

tray

3

5

claw

chuck cam

6

belt

2

3-12. OPTICAL PICK-UP KHM-310BAA

2

8

optical pick-up KHM-310BAA

two claws

6

3

7

claw

insulator

1

Slide the chuck cam in the direction
of arrow to releae the chucking.

5

insulator screw

12

7

5

insulator screw

insulator

5

7

insulator

insulator screw

4

holder (FFC)

7

insulator

5

insulator screw

1

flexible flat (24 core) cable

3

two claws

SECTION 4

TEST MODE

ICF-DVD57TV

LCD TEST MODE

Procedure:

1. Turn the power on while pressing simultaneously three keys
of M , x and [TV MENU].

2. The microprocessor version will be displayed on the LCD.

3. Press the Z key. The LCD display will become as follows.

LCD display

RADIO

DVD

FM

TV

AM

PM

AUX

4. The display corresponding to a key is turned off, if a key on
the set is pressed.

TIMER

MEGABASS

MEGAXpand

MHz

kHz

VOL

Key Corresponding Table

Key Segment

TIMER TIMER , TIMER LED
CLOCK AM, PM, : (colon)
MODE 5a, 5d, MEGA EXPAND, P, kHz, MHz
TV MENU 6b, 6c, 6d, 6e, 6g, 5c, 5e
SOUND MEGA BASS
VOLUME – – VOL –
VOLUME + . (dot)

m 5f
M 6a
. 4a, 4d, 4e
> 1d, 1h, 1a, 1e, 1f, 1g
u 2c, 2f, 2h, 2i
x 3e, 3f

OFF 1b, 1c, 2a, 2b, 2d, 2e, 2g, 3a, 3b, 3c, 3d, 3g,

4b, 4c, 4f, 4g
BAND RADIO, FM
DVD DVD
TV TV
AUX AUX

5. After all keys on the set were pressed, press the Z key, and

the test mode will be released.

TV TEST MODE

Procedure:

1. Turn the power on while pressing simultaneously two keys
of M and x .

2. When the TV test mode is activated, the monitor will become
as follows.

SR7596 TEST MODE MENU

1. INITIAL MENU

2. FOR FACTORY

3. LCD SETTING

4. LOAD DEFAULT

5. TUNER TEST

SR7596 Ver. 1.00a

3. Five items can be changed over by pressing the [TV MENU]
key.

4. The selected item is displayed in red and the items not selected
are displayed in cyan. (“SR7596 Ver. 1.00a” is displayed in red.)

5. You can enter the selected item by pressing the [ENTER] key.

6. Also, an item can be selected directly with the [1] to [5] keys
on the remote commander (RMT-CDVD57A).

1. INITIAL MENU (TV MENU PRESET)

• TV menu item is initialized.

Procedure:

1. Press the [TV MENU] key to select the “INITIAL MENU” on
the main screen.

2. Each item of TV menu can be initialized, if pressing the
[ENTER] key.

2. FOR FACTORY (FOR ADJUSTMENT)

• It is used at the time of adjustment.

Procedure:

1. Press the [TV MENU] key to select the “FOR FACTORY” on
the main screen.

2. A changing between setting item and “EXIT” is possible by
pressing the [TV MENU] key. (The selected item is displayed
in red)

3. If the [ENTER] key is pressed when the setting item has been
selected, settable items can be changed over , and the value of
the selected item can be adjusted by pressing the ./

keys. (For details, refer to VIDEO B US ADJUSTMENT

>

(See page 19))

4. The main screen comes back if the [ENTER] key is pressed
when “EXIT” has been selected.

Note: The same operation is also carried out by pressing the keys

on the remote commander.

3. LCD SETTING

This mode is not used in servicing.

4. LOAD DEFAULT

• It carries out, only when EEPROM (IC1451) is exchanged.

Procedure:

1. Press the [TV MENU] key to select the “LOAD DEFAUL T” on
the main screen.

2. All settings can be initialized, if pressing the [ENTER] key.
(In addition to the “INITIAL MENU”, set value of RGB
decoder (IC1501) and tuner N value)

5. TUNER TEST

This mode is not used in servicing.

13

ICF-DVD57TV

p

DVD TEST MODE

Procedure:

1. Turn the power on and press the [DVD] key to select the “D VD”.

2. Press the Z key to open the disc tray.

3. Press the key on the remote commander (RMT-CDVD57A)
as following order.
[TOPMENU] → [ANGLE] → [MENU] → [AUDIO]

4. When the test mode is activated, the monitor will become as
follows.

15. Connect the oscilloscope to TP708 and TP709 on the DVD
board.

16. Check that the oscilloscope waveform of B-Y signal is as
shown in the figure below.

1.45 ± 0.1 Vp-p

SR-7596 TEST MODE

JITTER VALUE – —
RF LEVEL – —
TRACKING ERROR AMP – —
FOCUS ERROR AMP – —
TRK SERVO GAIN AUTO ADJ – —
FCS SERVO GAIN AUTO ADJ – —

1. DVD OPERATION CHECK

Procedure:

1. Insert the DVD test disc (TDV-540C) (Part No. J-2501-235­A) to start the automatic adjustment for DVD.

2. Connect the multi meter to TP753 and TP751 on the DVD
board.

3. Check that the reading of multi meter is 40 to 75 mA.

4. Check that the JITTER VALUE of monitor is 2D5 to 000
HEX.

5. Connect the oscilloscope to TP761 and TP702 on the DVD
board.

6. Check that the RF LEVEL of monitor is B8 to 87 HEX.

7. Check that the oscilloscope waveform of RF signal is as shown
in the figure below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.

550 ± 100 mVp-p

17. Connect the oscilloscope to TP710 and TP711 on the DVD
board.

18. Check that the oscilloscope waveform of R-Y signal is as
shown in the figure below.

1.45 ± 0.1 Vp-p

2. CD OPERATION CHECK

Procedure:

1. Insert the CD test disc (PATD-012) (Part No. 4-225-203-01)
to start the automatic adjustment for CD.

2. Connect the multi meter to TP753 and TP752 on the DVD
board.

3. Check that the reading of multi meter is 55 to 85 mA.

4. Check that the JITTER VALUE of monitor is 2BC to 000
HEX.

5. Connect the oscilloscope to TP761 and TP702 on the DVD
board.

6. Check that the RF LEVEL of monitor is A5 to 70 HEX.

7. Check that the oscilloscope waveform of RF signal is as shown
in the figure below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.

8. Check that the TRACKING ERROR AMP of monitor is EB
to 8C HEX.

9. Check that the FOCUS ERROR AMP of monitor is FF to BE
HEX.

10. Check that the TRK SERVO GAIN ADJ of monitor is 56 to
38 HEX.

11. Check that the FOCU SERV O GAIN ADJ of monitor is 42 to
18 HEX.

12. Insert the DVD test disc (HLX-N1) (Part No. 8-797-000-10)
and play the title5-chapter2 (full color bar 100%).

13. Connect the oscilloscope to TP706 and TP707 on the DVD
board.

14. Check that the oscilloscope waveform of Y signal is as shown
in the figure below.

1.0 ± 0.1 Vp-

14

700 ± 200 mVp-p

8. Check that the TRACKING ERROR AMP of monitor is BA
to 6E HEX.

9. Check that the FOCUS ERROR AMP of monitor is FF to B9
HEX.

10. Check that the TRK SERVO GAIN ADJ of monitor is 4F to
32 HEX.

11. Check that the FOCU SERVO GAIN ADJ of monitor is 52 to
37 HEX.

Connecting Location:

– DVD BOARD (Side B) –

ICF-DVD57TV

TP752

TP709

TP711

TP707

TP710

TP706

TP708

TP702

TP761

TP751

TP753

15

ICF-DVD57TV

r

SECTION 5

ELECTRICAL ADJUSTMENTS

TUNER SECTION 0 dB=1 µV

[AM]

Setting:

Function: RADIO
Band: AM

AM RF signal

generator

30% amplitude
modulation by
400 Hz signal
Output level:
as low as possible

[FM]

Setting:

Function: RADIO
Band : FM

FM RF signal

generator

22.5 kHz frequency
deviation by 400 Hz
signal
Output level:
as low as possible

Put the lead-wire
antenna close to
the set.

set

TU board
TP (ANT)

0.01 µF
set

TU board
TP (GND)

MAIN board
CN302 pin

level meter

6

Ω

MAIN board
CN302 pin

MAIN board
CN302 pin

6

Ω

MAIN board
CN302 pin

1

+
–

2

1

level meter

+
–

2

AM IF ADJUSTMENT

Adjust for a maximum reading on level meter

T1 450 kHz

AM VCO VOL TAGE ADJUSTMENT

Adjustment Part Frequency Display Reading on Digital Voltmeter

Confirmation 530 kHz 1.0 ± 0.1 V

L4 1,710 kHz 5.3 ± 0.7 V

AM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter

L3 620 kHz

CT3 1,400 kHz

FM IF ADJUSTMENT

Adjust for a minimum reading on level meter

T2 10.7 MHz

FM VCO VOL TAGE ADJUSTMENT

Adjustment Part Frequency Display Reading on Digital Voltmeter

Confirmation 87.5 MHz 1.3 ± 0.2 V

L2 108 MHz 3.0 ± 0.2 V

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter

L1 87.5 MHz

CT1 108 MHz

Adjustment and Connecting Location:

TU board (See page 17)

digital voltmete

TU board

Ω

TP (VT)

100 k

TP (GND)

• Repeat the procedures in each adjustment several times, and

the tracking adjustments should be finally done by the trimmer
capacitors.

16

Adjustment and Connecting Location:

– TU BOARD (Component Side) –

ICF-DVD57TV

AM VCO Voltage Adjustment

L4

L2

FM VCO Voltage Adjustment

– TU BOARD (Conductor Side) –

TP

(VT)

L3

AM T rac king Adjustment

CT3

TP

(ANT)

T2 FM IF Adjustment

T1 AM IF Adjustment

L1

FM T rac king Adjustment

CT1

TP

(GND)

17

ICF-DVD57TV

)

)

)

)

)

)

)

)

MONITOR SECTION

5-1. VOL TAGE AND FREQUENCY ADJUSTMENT

5-1-1. 5.0V Adjustment

Connection:

digital

voltmeter

TP1907

set

+
–

TP1901 (GND

Adjustment Procedure:

1. Connect a digital voltmeter to the TP1907 and TP1901 (GND)
on the MONITOR board.

2. Adjust the RV1901 so that the reading of digital voltmeter is

5.0 ± 0.1 V.

5-1-1. DC/DC Converter Frequency Adjustment

Connection:

frequency

TP1906

set

counter

+
–

TP1901 (GND

Adjustment Procedure:

1. Connect a frequency counter to the TP1906 and TP1901
(GND) on the MONITOR board.

2. Adjust the RV1902 so that the reading of frequenc y counter is
243 ± 1 kHz.

5-2. VOLTAGE CHECK

5-2-3. VSS (–13.0V) Check

Connection:

digital

voltmeter

TP1951

set

+
–

TP1901 (GND

Checking Procedure:

1. Connect a digital voltmeter to the TP1951 and TP1901 (GND)
on the MONITOR board.

2. Check that the reading of digital voltmeter is –12.0 ± 1.0 V.

5-2-4. 7.5V Check

Connection:

digital

voltmeter

TP1909

set

+
–

TP1901 (GND

Checking Procedure:

1. Connect a digital voltmeter to the TP1909 and TP1901 (GND)
on the MONITOR board.

2. Check that the reading of digital voltmeter is 7.4 ± 0.2 V.

5-2-5. 3.9V Check

Connection:

digital

voltmeter

TP1421

set

+
–

5-2-1. VDD (3.3V) Check

Connection:

digital

voltmeter

TP1954

set

+
–

TP1901 (GND

Checking Procedure:

1. Connect a digital voltmeter to the TP1954 and TP1901 (GND)
on the MONITOR board.

2. Check that the reading of digital voltmeter is 3.1 ± 0.2 V.

5-2-2. VGH (17.0V) Check

Connection:

digital

voltmeter

TP1952

set

+
–

TP1901 (GND

Checking Procedure:

1. Connect a digital voltmeter to the TP1952 and TP1901 (GND)
on the MONITOR board.

2. Check that the reading of digital voltmeter is 16.8 ± 1.0 V.

TP1901 (GND

Checking Procedure:

1. Connect a digital voltmeter to the TP1421 and TP1901 (GND)
on the MONITOR board.

2. Check that the reading of digital voltmeter is 3.85 ± 0.2 V.

5-2-6. Inverter V oltage Check

Connection:

digital

voltmeter

TP1412

set

+
–

TP1901 (GND

Checking Procedure:

1. Connect a digital voltmeter to the TP1412 and TP1901 (GND)
on the MONITOR board.

2. Check that the reading of digital voltmeter is 8.0 ± 0.2 V.

18

ICF-DVD57TV

)

V

5-3. PLL ADJUSTMENT

Connection:

digital

voltmeter

TP1651

set

+
–

TP1901 (GND

Adjusting Procedure:

1. Connect a digital voltmeter to the TP1651 and TP1901 (GND)
on the MONITOR board.

2. Adjust the RV1651 so that the reading of digital voltmeter is

2.2 ± 0.15 V.

5-4. V COM ADJUSTMENT

Connection:

TP1960

osclloscope

set

Adjusting Procedure:

Connect an oscilloscope to the TP1960 and TP1901 (GND) on the
MONITOR board.

5-4-1. Voltage Set Up Adjustment

Adjust the set so that the A level of the waveform on the oscilloscope
is 6.6 ± 0.1 Vp-p. (Refer to the 5-7. video bus adjustment)

+
–

TP1901 (GND)

5-5. OSD DOT CLOCK CHECK

Connection:

frequency counter

(high impedance probe)

TP1515

set

+
–

TP1901 (GND)

Adjusting Procedure:

1. Connect an frequency counter to the TP1515 and TP1901
(GND) on the MONITOR board.

2. Check that the reading of frequency counter is 6.5 ± 0.2 MHz.

5-6. NTSC SUB CARRIER CHECK

Connection:

frequency counter

(high impedance probe)

TP1510

set

+
–

TP1901 (GND)

Checking Procedure:

1. Connect an frequency counter to the TP1510 and TP1901
(GND) on the MONITOR board.

2. Check that the reading of frequency counter is 3.579545 MHz
± 100 Hz.

5-7. VIDEO BUS ADJUSTMENT

Connection: (5-7-1 to 5-7-9)

A

5-4-2. Position Set Up Adjustment

Check the B lev el of the wav eform on the oscilloscope is 4.7 ± 0.1
Vp-p and adjust the RV1501 so that the C level of the waveform
on the oscilloscope is –1.9 ± 0.1 Vp-p.

B

0

C

INPUT VIDEO jack

(JK501)

NTSC pattern

generator

set

TP1963 or
TP1964 or

TP1965

osclloscope

+
–

TP1901 (GND)

Condition: (5-7-1 to 5-7-9)

Input the NTSC video signal (10 step (no burst)) (1 Vp-p 75 Ω) to
the INPUT VIDEO jack (JK501) on the MAIN board from NTSC
pattern generator.

Adjusting Procedure:

1. Set the TV test mode (Refer to TV TEST MODE (See page

13).

2. Press the [TV MENU] key to select “LOAD DEFAULT”, and
press the [ENTER] key to write initial v alues to the EEPROM.

Note: It carries out, only when EEPR OM (IC1451) is exc hanged.

3. Press the [TV MENU] key to select “FOR F A CTOR Y”, and press
the [ENTER] key to enter the adjustment mode.

4. If entering the adjustment mode, press the [TV MENU] key to
select item, and press the [ENTER] key to execute all adjustment
items mentioned below.

19

ICF-DVD57TV

V

V

V

V

V

V

V

V

5-7-1. Gamma 1 Adjustment

Adjusting Procedure:

1. Connect an oscilloscope to the TP1964 and TP1901 (GND)
on the MONITOR board.

2. Adjust the

./> keys so that the C level of the

waveform on the oscilloscope is 2.1 ± 0.1 Vp-p.

C

0

5-7-2. Gamma 2 Adjustment

Adjusting Procedure:

1. Connect an oscilloscope to the TP1964 and TP1901 (GND)
on the MONITOR board.

2. Adjust the ./> keys so that the D level of the
waveform on the oscilloscope is 3.0 ± 0.1 Vp-p.

5-7-5. White Limit (White Limiter Level) Adjustment

Adjusting Procedure:

1. Connect an oscilloscope to the TP1964 and TP1901 (GND)
on the MONITOR board.

2. Adjust the ./> ke ys so that the F level of the
waveform on the oscilloscope is 4.0 ± 0.05 Vp-p.

F

0

5-7-6. R-Sub BRT (R-ch Sub Bright) Adjustment

Adjusting Procedure:

1. Connect an oscilloscope of 1 step voltage to the TP1963 and
TP1901 (GND) on the MONITOR board.

2. Adjust the ./> ke ys so that the B level of the
waveform on the oscilloscope is 1.0 ± 0.1 Vp-p.

D

0

5-7-3. Y Gain (Luminance Signal Contrast Level)

Adjustment

Adjusting Procedure:

1. Connect an oscilloscope to the TP1964 and TP1901 (GND)
on the MONITOR board.

2. Adjust the

./> keys so that the E level of the

waveform on the oscilloscope is 3.25 ± 0.1 Vp-p.

E

0

5-7-4. Black Limit (Black Limiter Level) Adjustment

Adjusting Procedure:

1. Connect an oscilloscope to the TP1964 and TP1901 (GND)
on the MONITOR board.

2. Adjust the ./> keys so that the A level of the
waveform on the oscilloscope is 1.0 ± 0.05 Vp-p.

B

0

5-7-7. B-Sub BRT (B-ch Sub Bright) Adjustment

Adjusting Procedure:

1. Connect an oscilloscope of 1 step voltage to the TP1965 and
TP1901 (GND) on the MONITOR board.

2. Adjust the

./> keys so that the B level of the

waveform on the oscilloscope is 1.0 ± 0.1 Vp-p.

B

0

5-7-8. R-Sub CONT (R-ch Sub Contrast) Adjustment

Adjusting Procedure:

1. Connect an oscilloscope of 10 step voltage to the TP1963 and
TP1901 (GND) on the MONITOR board.

2. Adjust the ./> ke ys so that the E level of the
waveform on the oscilloscope is 3.25 ± 0.1 Vp-p.

20

E

A

0

0

RV1501

V COM Adjustment

RV1901

5.0V Adjustment

RV1902

DC/DC Converter

Frequency Adjustment

RV1651

PLL Adjustment

– MONITOR BOARD (Component Side) –

TP1952

TP1951

TP1954

TP1960

TP1965

TP1964

TP1963

TP1510

TP1909

TP1907

TP1651

TP1901

(GND)

TP1906

TP1515

TP1412

– MONITOR BOARD (Conductor Side) –

TP1421

Adjusting Procedure:

V

NTSC pattern

generator

set

INPUT VIDEO jack

(JK501)

1. Connect an oscilloscope of 10 step voltage to the TP1965 and
TP1901 (GND) on the MONITOR board.

2. Adjust the ./> keys so that the E level of the
waveform on the oscilloscope is 3.25 ± 0.1 Vp-p.

E

0

Connection: (5-7-10 to 5-7-12)

ICF-DVD57TV

Adjustment and Connecting Location:5-7-9. B-Sub CONT (B-ch Sub Contrast) Adjustment

5-7-10. VCO Free Run Adjustment

Condition:

Input the NTSC video signal (10 step (no burst)) (1 Vp-p 75 W) to
the INPUT VIDEO jack (JK501) on the MAIN board from NTSC
pattern generator.

Adjusting Procedure:

Adjust the

./> keys so that a screen on the monitor may

become normal.

5-7-11. PLL/V POS Adjustment

Condition:

Input the NTSC video signal (monoscope) (1 Vp-p 75 W) to the
INPUT VIDEO jack (JK501) on the MAIN board from NTSC
pattern generator.

Adjusting Procedure:

Press the ./> keys to adjust so that the position of screen
on the monitor becomes vertically symmetric.

5-7-12. H POS Adjustment

Condition:

Input the NTSC video signal (monoscope) (1 Vp-p 75 W) to the
INPUT VIDEO jack (JK501) on the MAIN board from NTSC
pattern generator.

Adjusting Procedure:

Press the ./> keys to adjust so that the position of screen
on the monitor becomes horizontally symmetric.

ICF-DVD57TV

2121

ICF-DVD57TV

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM – DVD Section –

OPTICAL PICK-UP

BLOCK

(KHM-310BAA)

DVDVR

RF

C

B

A

D

PD

MSW

FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE

FCS+
FCS– VOFS–13

AUTOMATIC

POWER CONTROL

Q701

Q703

DVD/CD
SWITCH

Q702

IC705

VOFS+14

VNFFC7

6

DVDRF IP

8

MA

9

MB

MC

10

11

MD

DVDA2
DVDB3
DVDC4
DVDD5

TNI18E
TPI19F

V2029VC

MDI120
MDI221

LDO222DVDLD

LDO123CDLD

DVD/CD

114CDVR

LIMIT

136LIMIT SWITCH

1VINFC

FOO42

YUV4/R

200

YUV5/G L.P.F.202

YUV6/B L.P.F.203

ASDATA0 217 AOUTL+ 12

1ACLK 215
2ABCK 214
4ALRCK 213

5ARST 222

SPDIF 225

SO 178 DVD SO054

SI 170

SCK 179 DVD SCK55

XIFCS 169 DVD XIFCS56

XIFBUSY 168 DVD XIFBUSY50

AMUTE 220 DVD AMUT IN57

XPRST 110 DVD RST58

TMS 49 TRAY DET61

Y

L.P.F.

B-Y

R-Y

D/A CONVERTER

IC704

SDTI3

AOUTL– 11

MCLK
BICK
LRCK

AOUTR+ 10

PDN

AOUTR– 9

OPTICAL

TRANSCEIVER

JK502

MAIN SYSTEM CONTROLLER

IC401 (1/3)

DVD SI053

DVD OPEN

DVD CLOSE 42

LOADING A

LOADING B 60

OPTICAL
OUTPUT

R-CH

MIX AMP

IC303

Y, B-Y, R-Y

DVD LCH

A

B

(Page 25)

(Page 24)

• R-ch is omitted due to same as L-ch.

• SIGNAL PATH

: DVD/CD PLAY (VIDEO)

: DVD/CD PLAY (ANALOG AUDIO OUT)

: DVD/CD PLAY (DIGITAL AUDIO OUT)

CLOSE DETECT

MOTOR DRIVE

3

A IN

2

B IN

S001-1

DISC TRAY

OPEN DETECT

S001-2

DISC TRAY

IC351

A OUT

B OUT

8

7

M

M301

DISC TRAY

OPEN/CLOSE

39

DISC TRAY OPEN/CLOSE

51

TRK+ VOTK–16
TRK– VOTK+15

SLED MOTOR+ VOLD–17
SLED MOTOR– VOLD+18

SPINDLE MOTOR+ VOLD–11
SPINDLE MOTOR– VOLD+12

34
36

229

TRO41

FMO38

DMO37

STBY50

OP_OUT
OP_INP
OP_INN35

XTALO228

XTALI

D0 – D7

29, 31, 33, 35,

38, 40, 42, 44

81 – 84,

86 – 88, 91

AD0 – AD7

FLASH ROM

IC707

A-1, A0 – A19

45, 25 – 18, 8 – 1,

48, 17, 16, 9

93, 78, 53 – 59, 75, 74,

72 – 67, 92, 60, 61, 76

IOA0 – IOA20

26

28

11

77

79

66

XIOOE OE

XIOCS CE

XIOWR WE

RF AMP, SERVO DSP,

MPEG DECODER

IC706

DQ0 – DQ15

2, 4, 5, 7, 8, 10, 11, 13, 42,

44, 45, 47, 48, 50, 51, 53

125 – 123, 121, 120, 118, 117,

115, 135, 133 – 128, 126

RD0 – RD15

SD-RAM

IC708

A0 – A11

23 – 26,

29 – 34, 22, 35

147, 149 – 151, 166 – 164,

162, 160, 159, 146, 158

RA0 – RA11

20

143

BA0 BA0/A13

21

145

BA1 BA1/A12

38

37

15

39

18

17

19

16

156

157

113

137

140

139

142

138

5
6EEP_CK 102

EEPROM

IC709

SDA
SCL

RCLK CLK

CKE CKE

DQM0 DQML

DQM1 DQMH

XRAS RAS

XCAS CAS

XRCS CS

EEP_DA 103

XRWE WE

X701

27MHz

26VINTK

23VINLD

6VOSL

28STBY

VNFTK20

ICF-DVD57TV

2222

6-2. BLOCK DIAGRAM – TUNER Section –

T2

FM IFT

ICF-DVD57TV

T2

FM IF

(Page 26)

ANT

C

L1

FM RF

L3

AM FERRITE-ROD

ANTENNA

CT3

AM TRACKING

CT1, L1

FM TRACKING

CT1

D3

(1/2)

CT3, L3

FM/AM RF AMP, MIX, OSC,

2

24

D1

22

AM VCO VOLTAGE

L4

AM OSC

FM/AM IF AMP, DET, MPX

IC1

FM
RF IN

FM

RF AMP

FM
RF OUT

AM
RF IN

AM

RF AMP

L4

FM

MIX

FM

OSC

AM

MIX

AM

OSC

AM OSC

20 21

FM OSC

BUFFER

BUFFER

MIX OUT

OSC

OUT

19

L2

FM VCO VOLTAGE

4

FM OSC

10

QUAD

T1

AM IFT

T1

AM IF

CF2

CF4

FM
IF IN

FM IF

7

AMP

AM
IF IN

AM IF

6

AMP

FM
DET

AM
DET

IF

BUFFER

IF OUT

17 18

AF

BUFFER

LEVEL

DET

DET

OUT

ST

IND

ST IND

16

MPX
IN

AF

15

AMP

MPX

LPF1/BAND

LPF2/MO-ST

13

14

MUTE

STEREO/

MONO,
FM/AM

L-OUT

R-OUT

R-CH

TU LCH

D

(Page 24)

12

11

• R-ch is omitted due to same as L-ch.

• SIGNAL PATH

: FM

: AM

L2

X1

75kHz

20

19

FM/AM PLL

IC2

XOUT

XIN

(2/2)

REFERENCE

DIVIDER

D3

D2

VT B+

PLL DATA, PLL CLK,

PLL CE, MUTE

E

(Page 24)

6

FM/AM

LP-OUT

UNLOCK

DETECT

LOW-PASS

FILTER

LOW-PASS

FILTER

PD

LP-IN

PHASE

DETECTOR/

CHARGE PUMP

12 BIT

PROGRAMMABLE

DIVIDER

SWALLOW

COUNTER

111218

FMIN

AMIN

1/2

SHIFT REGISTER & LATCH

10 9

IF IN

UNIVERSAL

COUNTER

ST-IND

BAND

7

BAND

13817 16

MO/ST

CCB

INTERFACE

MUTE

DI

2

CL

3

CE

1

DO

4

PLL DATA

PLL CLK

PLL CE

ICF-DVD57TV

2323

ICF-DVD57TV

6-3. BLOCK DIAGRAM – AUDIO/PANEL Section –

(Page 22)

(Page 23)

(Page 25)

(Page 23)

(Page 25)

DVD LCH

B

TU LCH

D

TV LCH

F

CD LIN

5

R LIN

7 4

TV LIN

9

R-CH : R-ch is omitted due to same as L-ch.

SIGNAL PATH

: DVD/CD PLAY (ANALOG AUDIO OUT)

: FM

: TV (AUDIO)

PLL DATA, PLL CLK,
PLL CE, MUTE

E

µ-COM R DATA,
µ-COM S DATA,
µ-COM CLK,
µ-COM LATCH,

RESET

G

PLL DATA
PLL CLK
PLL CE
MUTE

µ-COM R DATA
µ-COM S DATA
µ-COM CLK
µ-COM LATCH

RESET

INPUT
SELECT
SWITCH

SURROUND/TONE CONTROL

65 RADIO DATA

66 RADIO CLK

64 RADIO CE

63 RADIO MUTE

29 µ-COM R DATA

33 µ-COM S DATA

34 µ-COM CLOCK

37 µ-COM LATCH

36 XRESET

1

INPUT SELECT SWITCH,

ELECTRICAL VOLUME,

IC302

SEG0 – SEG15

10 – 25

COM0 – COM3

V LINSEL L

6 – 9

VOLUME

CONTROL

MAIN SYSTEM CONTROLLER

SURROUND

CONTROL

LOGIC

14SI13SC19

68

IC401 (2/3)

67

VOL CLK

VOL DAT

TONE

CONTROL

BNFL18BOUTL

POWER AMP

IC301

L OUT L IN L OUT

AGC

Q104

17

R-CH

D103

+ +

D102

A MUTE

BUZZER

STBY

78

52

79

R-CH

MUTING

Q103

MUTING

CONTROL

Q302

R-CH

12 3

13

R-CH

NF L

POWER

AMP

STBY

8

STANDBY

SWITCH

Q301

R-CH

SP101
(L-CH)

SP201
(R-CH)

LIQUID CRYSTAL DISPLAY

LCD601

REMOTE CONTROL

RECEIVER

IC601

S659 – 664

S665 – 670

S653 – 658

S652

S651

ROTARY

ENCODER

SIRCS

BUFFER

Q401

48 RC

46 KEY0

45 KEY1

44 KEY2

43 KEY3

40 ENCODE+
41 ENCODE–

X275X1

TIMER LED

OPEN/CLOSE LED

AUX LED

TV LED

DVD LED

TUNER LED

XT271XT1

74

70

80

30

31

32

59

35

LED DRIVE

Q601

LED DRIVE

Q651

LED DRIVE

Q652

LED DRIVE

Q653

LED DRIVE

Q654

LED DRIVE

Q655

D604

TIMER

D651

OPEN/
CLOSE

Z

D652

AUX

D653

TV

D654

DVD

D655

RADIO

BAND

MONITOR ON

ICF-DVD57TV

X401

4.19MHz

X402

32.768kHz

2424

6-4. BLOCK DIAGRAM – MONITOR Section –

TV/AUX AUDIO

SELECT SWITCH

IC502

L

AUDIO

VHF/UHF

A

JK501
INPUT

Y, B-Y, R-Y

VIDEO

TV ANT

R

TU501

TV TUNER UNIT

(Page 22)

R-CH : R-ch is omitted due to same as L-ch.

SIGNAL PATH

: DVD/CD PLAY (ANALOG AUDIO OUT)

: TV (AUDIO)

: TV (VIDEO)

: AUX IN (AUDIO)

: AUX IN (VIDEO)

µ-COM R DATA, µ-COM S DATA,
µ-COM CLK, µ-COM LATCH, RESET

G

(Page 24)

R-CH

25L OUT

R-CH

24R OUT

16DET OUT

Y

239V (MPX)

25V (TU)
145V (F)
265V (D/D)

4SDA

3SCL

15AFT OUT

22MUTE

13RF AGC

20MODE

21F MONO 79 T-FMONO

SELECT SWITCH

SELECT SWITCH

1

4

VIDEO INPUT SELECT SWITCH

3

1

5

TV +9V

TV +5V

AGC

Q501

AUDIO MODE

Q503

AUDIO MODE

Q502

S401

DISPLAY
RELEASE

µ-COM R DATA
µ-COM S DATA
µ-COM CLK
µ-COM LATCH

RESET

2

13

3

5

IC501

Q504

7

4
2

77

32 T-SDATA
33 T-SCL

46 T-AFT

31 T-MUTE

30 T-AGC

78 T-MODE

37 TFT OPEN

57 µCOM-S DATA
56 µCOM-R DATA
58 µCOM-CLK
51 µCOM-LATCH
76 XRESET

80

TV/AUX

MUTING

Q101

34

DVD ON

TV/AUX_MUTE

R-CH

D101, 105

VIDEO AMP

Q505

B-Y

R-Y

SYNC
SEPARATOR
Q1501, 1502

X1501

3.579545MHz

63

VXO-NTSC

52 54 26

57 CIN

5 B-YIN

4 R-YIN

46 34

CTRAPOUT

YIN

CSYNCOUT

CSYNCIN

SDATA

SCLK47HSYNCLOCK

48

SYNC DET

Q1503, 1505

66

67 65

SCL

SDA

HDOUT
VDOUT

39

53

32
31

HSYNCLOCK

TRAP

RGB DECODER

IC1501

BUFFER

Q1504

52

VSYNC

CTRAPIN

VDIN35

HDOUT

VDOUT

EEPROM

IC1451

5

49

VCOMOUT

R-OUT

G-OUT 21

B-OUT 19

R-IN2
G-IN2
B-IN2

POL

BLAK

36

18

POL

BLAK

SDA

SCL

6

50

EEPROM-SCL

EEPROM-SDA

YS 17

SUB SYSTEM CONTROLLER

OSC

RV1651

PLL

V COM AMP

IC1503

PHASE

COMPARATOR

IC1651

HD
VD
BLAK
POL

28

R-OUT

G-OUT

B-OUT

14
15
16

X1401

4.19MHz

74 64

75

X1

X2

IC1401 (1/2)

16

VR
VG

17
18

VB

BLK

15

HSYNCN20
VSYNCN19

OSD DRIVER

IC1502

OSC OUT

OSC IN 8

DATA

SCLK1CSN

3

2

54 55 53

OSD-CLK

OSD-DATA

7

OSD-CS

V COM BIAS

Q1506 – 1510

LCD CONTROLLER

IC1601

33

PD

36

VCO1

37

VCO0

2

HSYNCIN

5

VDBIN
BLACK

8

14

POL

ZOOMZOOM

12

31

61 62 63

JUST4SIDE1

3

JUST

SIDE1

RV1501

V COM

VGH17V

STV1
STV2
STH1
STH2

CPH1
CPH2
CPH3

CPV

OEV1
OEV2
OEV3

OEH

SIDE2

39

35

SIDE2

VEE5V

20
26
23
24

29
27
25
16

19
18
17

RESET

XRESET

ICF-DVD57TV

TV LCH

F

LIQUID CRYSTAL

DISPLAY MODULE

LCD1 (1/2)

VCOM
VCOM

R

G

B

RED

GREEN

BLUE

VGON (17V)
VDD (3.3V)VDD3V
VEE (5.0V)

VB (2.5V)

VSS (–13.0V)VSS–13V

STV1
STV2
STH1
STH2

CLK1
CLK2
CLK3
CPV

OEV1
OEV2
OEV3
OEH21

(Page 24)

ICF-DVD57TV

2525

ICF-DVD57TV

6-5. BLOCK DIAGRAM – POWER SUPPLY Section –

D1905
D1904
D1903
D1902
D1901

SUB SYSTEM CONTROLLER

IC1401 (2/2)

41SPC-DET

598V_SW

60TFT-ON

VSS–13V

VGH+17V

VCC+7.5V

VEE+5V

VDD+3.3V

RV1901

5V VOLTAGE

RV1902

FREQUENCY

DISPLAY MODULE

LIQUID CRYSTAL

LCD1 (2/2)

(BACK LIGHT)

DC/DC

CONVERTER

T1901

POWER CONTROL

IC1901

3 7NON1 OUT1

2RT

15 SCP

INVERTER

TRANSFORMER

T1801

DC/DC
CONVERTER
Q1901, 1903

LCD BACK LIGHT

CONTROL

IC1801

8 7OUTL BATT

13 OUTR

2IL

5EN

B+ SWITCH

Q1902, 1904

14BATT

F1801

PLL/RF +3.3V

VIDEO DAC +3.3V

DVD +3.3V

DVD +1.8V

TV +5V

MAIN SYSTEM CONTROLLER

+1.8V

REGULATOR

IC701

IC401 (3/3)

MONITOR ON

AC IN

XRESET

TH902

TH901

62

49

76

+3.3V

REGULATOR

IC702

+3.3V

REGULATOR

IC703

+3.3V

REGULATOR

IC903

TEMPERATURE

TEMPERATURE

DVD +5V

TV +9V

+9V

+5V

SUB µ-COM +3.3V

MAIN µ-COM +3.3V

LED +3.3V

D914, 915 D911

D924, 925

DETECT

IC952

DETECT

IC951

+5V

REGULATOR

IC901

RESET SIGNAL

GENERATOR

IC402

+

D913

DEAD TIME

Q910

DEAD TIME

Q917

B+ SWITCH

Q901, 904

SWITCHING
REGULATOR

Q916

REGULATOR

CONTROL
Q913, 918

D1402

D402

D401

SWITCHING

REGULATOR

Q908

REGULATOR

CONTROL

Q907, 909

REGULATOR

REGULATOR

POWER CONTROL

10 OUT2
11 DT2

7 OUT1
6 DT1

SWITCHING

+9V

IC902

+3.9V

IC904

F903F1901

F904

IC905

9

VCC

SCP

15

SWITCHING

Q902

+5V REGULATOR

Q911, 914, 919, 923, 924

Q903

B+ SWITCH

Q905, 906

RECT
D901

RECT

D905, 906

RECT
D902

F901

F902

T901

POWER

TRANSFORMER

SIGNAL PATH

: FM

ANT

(AC IN)

C

(Page 23)

ICF-DVD57TV

RADIO ON

D651 – 653

(LCD BACK LIGHT)

+6V

RADIO/VT

B+

77

+5.4V

MOTOR DRIVER

B+

D351

+12V

POWER AMP

B+

RADIO ON

SWITCH

Q402

+6V REGULATOR

Q912, 915, 920 – 922

2626

ICF-DVD57TV

• Note For Printed Wiring Boards and Schematic Diagrams

Note on Printed Wiring Board:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

• W : indicates side identified with part number.

• z : Through hole.

• f : inter nal component.

• : Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

Caution:
Pattern face side: Parts on the pattern face side seen from
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.

Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.

• DVD board is multi-layer printed board.
However, the patterns of intermediate-layer have not been in­cluded in this diagrams.

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.

• All resistors are in Ω and 1/
specified.

• f : internal component.

• 2 : nonflammable resistor.

• C : panel designation.

Note: The components identified by mark 0 or dotted line

with mark 0 are critical for safety.
Replace only with part number specified.

• A : B+ Line.

• B : B– Line.

• H : adjustment for repair.

• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.
– DVD/MONITOR Boards –
no mark : DVD PLAY
(): CD PLAY
[]: TV

〈〈 〉〉 : AUX

∗ : Impossible to measure

– TU Board –
no mark : FM
(): AM
– Other Boards –
no mark : RADIO (FM/AM)
(): DVD PLAY
[]: TV

〈〈 〉〉 : AUX

• Voltages are taken with a V OM (Input impedance 10 MΩ).

Voltage variations may be noted due to normal produc­tion tolerances.

• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc­tion tolerances.

• Circled numbers refer to waveforms.

• Signal path.

L : DVD/CD PLAY (VIDEO)
F : DVD/CD PLAY (ANALOG AUDIO OUT)
J : DVD/CD PLAY (DIGITAL AUDIO OUT)
N : FM
O : AM
E : TV (AUDIO)
a : TV (VIDEO)
d : AUX (AUDIO)
G : AUX (VIDEO)

4

W or less unless otherwise

• Circuit Boards Location

LCD board

MS-203 board

TRANS board

MONITOR board

DVD board

DETECTION board

TU board

MAIN board

KEY board

ICF-DVD57TV

2727

ICF-DVD57TV

6-6. PRINTED WIRING BOARD – DVD Board (Side A) –

1 2 3 4 5 6 7 8 9 10

: Uses unleaded solder.• See page 27 for Circuit Boards Location.

A

B

C

D

E

F

DVD BOARD

(SIDE A)

Q703

BCE

R735

FL706

L704

R734

R739

C741

R725

R727

R742

R731

R821

BP703

2S2G1D

2D1G1S

R736

+

C735

C743

BP704

Q702

R738

R726

R724

C736

BP701

C737

C738

C748

C746

C747

C766

C767

C768

FL707

+

C709

+

BP702

C757

R747

C778

C826

1

64

+

FL709

R787

C779

+

C775

R825

R750

R752

C756

R828

C750

C751

C770
C771
C772
C773

C774

R751

R753

R761

C776

R827

R746

C764

C765

+

+

+

+

R826
R745
R824
R744

+

+

C807

C825

C822

R835

256 193

65 128

C821

C838

+

C818

C780

C808

C813

C781

R793
R792

C804 C803

BP601

C812

IC706

C782

5

IC709

8

R784

R782

C802

R803

X701

FL711

C800

R804

4

1

R781

C783

C799

R764

C787

C801

R813

R779

R777

C798 C797 C796

R805

R766

C784

C870

R765

C869

C785

C847

C728

R780

R778

R713

C727

C726

192

129

R714

R768
R767 R769
C795

C791 C792 C793 C794

C790C789

C788

C861

R806

+

C837

R728

C724

C708

+

C707

+

C701

+

C723

+

FB704

C719

FL702

FB703

C721

C714

C722

+

C702

+

C720

FB706

FL703

FB705

+

C703

1-866-128-

11

(11)

G

ICF-DVD57TV

• Semiconductor

Location

Ref. No. Location

IC706 E-5
IC709 F-6

Q702 E-3
Q703 E-2

2828

6-7. PRINTED WIRING BOARD – DVD Board (Side B) –

1 2 3 4 5 6 7 8 9 10

A

B

C

MAIN

BOARD

CN454

(Page 34)

C

DVD BOARD

8

CN704

1

R840

R841

(SIDE B)

C841

R801

R800

C843

R799

C849

R798

R797

R796

D

E

TP711

TP709

TP710

F

1

FB712

FB711

TP707

TP708

CN701

FB710

TP706

R712

R706

C715

4

5

IC703

R711

C716

R710

C717

3

1

R709

R717 L701

R720 L702

R718 L703

R701

C706

4

C705

6

IC701

FB702

9

16

FL705

24

IC704

C729

C731

C730

C704

3

1

R794

FL701

FB709

C732

FB708

C734

FB707

C733

C830

8

1

28

C852

C840C839

54

R815

R819

R817

R814

R818

R816

R721

R723

R722

R810C859

R811

IC708

C858

R771

R772

R809

: Uses unleaded solder.• See page 27 for Circuit Boards Location.

R773

C857

R837

R774

C856
R808

B

CN705

R838

C855

27

1

MAIN BOARD

CN355

(Page 34)

13

R839

FL712

C860

R770

R807

C809

R812

C810 C811 C823 C824

R785
R833
R834
C805

R836

R791

24 1

IC707

C832 C833 C834 C835

25 48

C831

R790

C817
C816 C820

C815

C814

R788

C829

C871

IC702

C819

R786

C712

R703

C763

R762

L707

FL710

R763

4

C710

TP761

C758

R760

R832

C827

13

C711

C755

R829
R755
R758
R830
R831
C777

R748

FL713

6

R754

C759

C760

C761
R759
C762

TP751

R743

R823

R822

FL708

L705

C742

R737

R732

R820

R740

L706

R733

C739

14

C749

1

7

8

C744

Q701

C745

TP752

2E1B1C

2C2B1E

IC705

R741

TP753

CN702

ICF-DVD57TV

28

22

C740

21

15

241

R729

16

CN703

G

ICF-DVD57TV

• Semiconductor

Location

Ref. No. Location

IC701 E-4
IC702 B-7
IC703 E-3
IC704 B-4
IC705 C-9
IC707 E-6
IC708 E-5

Q701 D-8

A

MAIN BOARD

CN354

(Page 34)

TP702

11

1-866-128-

OPTICAL PICK-UP

BLOCK

(KHM-310BAA)

(11)

2929