Sony ICF-DVD57TV - Dvd Tv Clock Radio User manual

SERVICE MANUAL
LCD-TV DVD KITCHEN CLOCK RADIO
US Model
SPECIFICATIONS
ICF-DVD57TV
Ver. 1.0 2005.04
Model Name Using Similar Mechanism NEW
Optical Pick-up Block Name KHM-310BAA
9-879-703-01
2005D05-1
© 2005.04
Sony Corporation
Personal Audio Group
Published by Sony Engineering Corporation
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.
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.
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 channel-
minimum RMS power, with no more than 10
% total harmonic distortion in AC operation.
TV section
Television system American TV standard/
NTSC
Channel coverage VHF: 2–13/UHF: 14–69/
CATV: 1–125
Antenna 75-ohm external antenna
terminal for VHF/UHF
Screen type Wide LCD color monitor
Size 9 inches
System TFT active matrix
Number of dots 336,960 dots
Input 1 video, 1 audio
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
All manuals and user guides at all-guides.com
all-guides.com

2
ICF-DVD57TV
CAUTION
Use of controls or adjustments or performance of procedures
otherthanthosespecifiedherein may result in hazardous radiation
exposure.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
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 antennaterminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts forAC 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 manufacturers’instructions to use these
instruments.
2. A battery-operatedAC 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-operatedAC voltmeter. The “limit” indication
is 0.75V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passiveVOM that is suitable. Nearly all battery operated
digital multimeters that have a 2VAC range are suitable. (See
Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k Ω 0.15 µ FAC
voltmete
r
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
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
“DVD VIDEO,” “DVD-R” and “DVD-RW” are
trademarks.
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).
All manuals and user guides at all-guides.com

3
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
ALL
will also be played on this unit.
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.
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.
Region code
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
All manuals and user guides at all-guides.com

4
ICF-DVD57TV SECTION 1
SERVICING NOTES
The laser diode in the optical pick-up block may suffer electro-
static 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 emis-
sion, observe from more than 30 cm away from the objective lens.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free 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 oc-
cur 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.
All manuals and user guides at all-guides.com

5
ICF-DVD57TV
SECTION 2
GENERAL This section is extracted from
instruction manual.
1
3
2
4
5
8
7
qs
qd
qf
qg
qh
qj
qk
ql
w;
wa
ws
wd
qa
0
9
6
Refer to the pages listed for details.
1DISPLAY RELEASE
2Disc Tray
3TIMER dial and TIMER indicator, PUSH
START/STOP button
To operate the Cooking Timer.
4Clock Display Window
5Receptor for the remote control
6CLOCK button
To set the clock.
7MODE/SCREEN SIZE button
To set the screen mode, and to set the FM
mode.
8TV MENU button
To change the screen settings.
9ENTER button
0SOUND button
To set the audio emphasis.
qa VOLUME +/– buttons
qs Speakers (left/right)
qd ZOPEN/CLOSE button
qf AUX button
To watch the AUDIO/VIDEO INPUT.
Location of controls
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.
*There is a tactile dot on the VOLUME + and
ubuttons.
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
Remote control
1
4
0
qa
qs
qd
5
2
3
6
qg
wd
wa
7
8
9
wf
wg
qj
ws
qk
ql
w;
qh
qf
Refer to the pages listed for details.
1SETUP button
Used to perform menu operations.
2DISP (Display) button
To display the channel number or the time
information of the disc.
3AUX button
To watch the AUDIO/VIDEO INPUT.
4Number buttons
5REPEAT button
To select the repeat mode (DVD/Video
CD/Audio CD).
6.(Previous)/>(Next) buttons
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.
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.
*There is a tactile dot on the “5”, “u” and
“TUNE/CH+” buttons of the remote control.
7tSLOW/m(Fast reverse)/TSLOW/M
(Fast forward) buttons
This can also be used in slow playback
mode.
8TOP 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.
9O(Return) button
q; v/V/b/Bbuttons
qa MENU button
To display the recorded DVD menu.
qs VOL (Volume) +/– buttons
qd MUTING button
To attenuate the volume.
Connection
Use this hookup if you subscribe to a CATV
System that does not require a cable box.
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.
Basic Connections
(Connecting CATV or an
Antenna)
Connecting directly to cable or an antenna
All manuals and user guides at all-guides.com

ICF-DVD57TV
6
•This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
3-2. CABINET (UPPER), TRAY LID ASSY
(Page 7)
3-3. MECHANICAL DECK ASSY
(Page 7)
3-4. CABINET (FRONT) ASSY
(Page 8)
3-5. DVD BOARD
(Page 8)
3-6. MAIN BOARD
(Page 9)
3-11. BELT, TRAY
(Page 12)
3-12. OPTICAL PICK-UP
KHM-310BAA
(Page 12)
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)
SET
All manuals and user guides at all-guides.com
all-guides.com

ICF-DVD57TV
7
3-3. MECHANICAL DECK ASSY
Note: Follow the disassembly procedure in the numerical order given.
3-2. CABINET (UPPER), TRAY LID ASSY
4 eight screws
(B3)
1 Turn on the power supply, and press the
open/close button to open the tray.
3 Turn on the power supply, and press the
open/close button to close the tray.
2 tray lid assy
4 eight screw
s
(B3)
5 screw (B3)
7 cabinet (upper)
6
4 two screws
(B3)
3 three screws
(B3)
6 mechanical deck assy
1 flexible flat (24 core) cable
(CN702)
5 flexible flat (5 core) cable
(CN351)
2 connector
(CN703)
4
All manuals and user guides at all-guides.com

ICF-DVD57TV
8
3-4. CABINET (FRONT) ASSY
2 flexible flat (16 core) cable
(CN602)
1 flexible flat (12 core) cable
(CN601)
4 two screws
(B2.6)
4 two screws
(B2.6)
6 cabinet (front) assy
5 claw
3 flexible flat (9 core) cable
(CN403)
5 claw
5 three claws
4 four screws
(B2.6)
6 shield (DVD lower)
2 flexible flat (8 core) cable
(CN704)
3 connecto
r
(CN705)
5 DVD board
1 flexible flat (24 core) cable
(CN701)
3-5. DVD BOARD
All manuals and user guides at all-guides.com

ICF-DVD57TV
9
3-6. MAIN BOARD
3-7. MONITOR ASSY
1 flexible flat (11 core) cabl
e
(CN10)
2 four connectors
(CN403, CN404, CN405, CN406)
2 two connectors
(CN302, CN401)
2 connector
(CN901)
3 terminal
(CN902)
4 three screws
(B2.6)
5 MAIN board
4 three screws
(B2.6)
2 four claws
1 four connectors
(CN403, CN404, CN405, CN406)
3 cover (shaft)
4 four screws
67
monitor assy
5 Push the button (release).
All manuals and user guides at all-guides.com

ICF-DVD57TV
10
3-8. CABINET (DISP REAR)
3-9. SHIELD (DISP)
1 two screws
2 six claws
2 three claws
3 two sliders (DISP)
4 cabinet (DISP rear
)
2 two claws
2 three claws
2 three claws
1 two screws
1 two screw
s
2 shield (DISP)
1 three screws
All manuals and user guides at all-guides.com

ICF-DVD57TV
11
3-10. MONITOR BOARD, LIQUID CRYSTAL DISPLAY PANEL (LCD1)
1 four connectors
(CN1403, CN1404, CN1405, CN1406
)
2 connector
(CN1801)
3 LCD flexible board
(CN1802)
4 screw
qs liquid crystal display panel
(LCD1)
9
q; panel (DISP)
qa two adhesive tapes
qa two adhesive tapes
7 screw
5 two screws
8 bracket (DISP)
8 bracket (DISP)
7 screw
6 MONITOR board
4 screw
All manuals and user guides at all-guides.com
all-guides.com

ICF-DVD57TV
12
5 chuck cam
6 belt
4 tray
3 claw
3 claw
1 Slide the chuck cam in the direction
of arrow to releae the chucking.
2
1 flexible flat (24 core) cable
4 holder (FFC)
5 insulator screw
7 insulator
7 insulator
7 insulator
8 optical pick-up KHM-310BAA
7 insulator
6
5
insulator screw
5 insulator screw
5 insulator screw
3 two claws
2 two claws
3-11. BELT, TRAY
3-12. OPTICAL PICK-UP KHM-310BAA
All manuals and user guides at all-guides.com

13
ICF-DVD57TV
SECTION 4
TEST MODE
LCD TEST MODE
Procedure:
1. Turn the power on while pressing simultaneously three keys
of M, xand [TV MENU].
2. The microprocessor version will be displayed on the LCD.
3. Press the Zkey. The LCD display will become as follows.
LCD display
4. The display corresponding to a key is turned off, if a key on
the set is pressed.
Key CorrespondingTable
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)
m5f
M6a
.4a, 4d, 4e
>1d, 1h, 1a, 1e, 1f, 1g
u2c, 2f, 2h, 2i
x3e, 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 Zkey, and
the test mode will be released.
RADIO TIMER
DVD
FM
AM
TV
AUX
PM
kHz
MHz
MEGABASS
VOL
MEGAXpand
TV TEST MODE
Procedure:
1. Turn the power on while pressing simultaneously two keys
of Mand 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
aredisplayedincyan.(“SR7596Ver.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 toVIDEO BUSADJUSTMENT
(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 DEFAULT” 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.
All manuals and user guides at all-guides.com

14
ICF-DVD57TV
DVD TEST MODE
Procedure:
1. Turn the poweron and press the[DVD] key to select the “DVD”.
2. Press the Zkey 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.
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-2501-235-
A) 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 isasshown
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 SERVO GAINADJ 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 ofY signal is as shown
in the figure below.
550 ± 100 mVp-p
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.
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.
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. Checkthat the oscilloscope waveformof RFsignalis 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 BA
to 6E HEX.
9. Check that the FOCUS ERRORAMP 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 GAINADJ of monitor is 52 to
37 HEX.
1.0 ± 0.1 Vp-
p
1.45 ± 0.1 Vp-p
1.45 ± 0.1 Vp-p
700 ± 200 mVp-p
All manuals and user guides at all-guides.com

15
ICF-DVD57TV
Connecting Location:
– DVD BOARD (Side B) –
TP761
TP752
TP751
TP753
TP707
TP706
TP702
TP709
TP711
TP710 TP708
All manuals and user guides at all-guides.com

16
ICF-DVD57TV
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1 450 kHz
AM VCO VOLTAGE 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 VOLTAGE 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)
TUNER SECTION 0 dB=1 µV
[AM]
Setting:
Function: RADIO
Band: AM
[FM]
Setting:
Function: RADIO
Band : FM
•Repeat the procedures in each adjustment several times, and
the tracking adjustments should be finallydone by the trimmer
capacitors.
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level:
as low as possible
Put the lead-wire
antenna close to
the set.
+
–
level meter
set
6 Ω
MAIN board
CN302 pin 2
MAIN board
CN302 pin
1
FM RF signal
generator
22.5 kHz frequency
deviation by 400 Hz
signal
Output level:
as low as possible
+
–
level meter
MAIN board
CN302 pin
2
MAIN board
CN302 pin 1
set
6 Ω
0.01 µ F
TU board
TP (GND)
TU board
TP (ANT)
digital voltmete
r
TP (VT)
TP (GND)
100 k
Ω
TU board
SECTION 5
ELECTRICAL ADJUSTMENTS
All manuals and user guides at all-guides.com
all-guides.com

17
ICF-DVD57TV
Adjustment and Connecting Location:
– TU BOARD (Conductor Side) –
TP
(VT)
TP
(GND)
TP
(ANT)
– TU BOARD (Component Side) –
L4
AM VCO Voltage Adjustment
L2
FM VCO Voltage Adjustment
FM Tracking Adjustment
T1 AM IF Adjustment
T2 FM IF Adjustment
L1
CT1
AM Tracking Adjustment
L3
CT3
All manuals and user guides at all-guides.com

18
ICF-DVD57TV
5-2-3. VSS (–13.0V) Check
Connection:
Checking Procedure:
1. Connect a digital voltmeter to the TP1951 andTP1901 (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:
Checking Procedure:
1. Connect a digital voltmeter to the TP1909 andTP1901 (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:
Checking Procedure:
1. Connect a digital voltmeter to the TP1421 andTP1901 (GND)
on the MONITOR board.
2. Check that the reading of digital voltmeter is 3.85 ±0.2 V.
5-2-6. Inverter Voltage Check
Connection:
Checking Procedure:
1. Connect a digital voltmeter to the TP1412 andTP1901 (GND)
on the MONITOR board.
2. Check that the reading of digital voltmeter is 8.0 ±0.2 V.
MONITOR SECTION
5-1. VOLTAGE AND FREQUENCY ADJUSTMENT
5-1-1. 5.0V Adjustment
Connection:
Adjustment Procedure:
1. Connect a digital voltmeter to the TP1907 andTP1901 (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:
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 frequency counter is
243 ±1 kHz.
5-2. VOLTAGE CHECK
5-2-1. VDD (3.3V) Check
Connection:
Checking Procedure:
1. Connect a digital voltmeter to the TP1954 andTP1901 (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:
Checking Procedure:
1. Connect a digital voltmeter to the TP1952 andTP1901 (GND)
on the MONITOR board.
2. Check that the reading of digital voltmeter is 16.8 ±1.0 V.
digital
voltmeter
TP1901 (GND
)
TP1954
set +
–
digital
voltmeter
TP1901 (GND
)
TP1952
set +
–
digital
voltmeter
TP1901 (GND
)
TP1951
set +
–
digital
voltmeter
TP1901 (GND
)
TP1909
set +
–
digital
voltmeter
TP1901 (GND
)
TP1421
set +
–
digital
voltmeter
TP1901 (GND
)
TP1412
set +
–
+
–
TP1901 (GND
)
TP1906
set
frequency
counter
digital
voltmeter
TP1901 (GND
)
TP1907
set +
–
All manuals and user guides at all-guides.com

19
ICF-DVD57TV
5-3. PLL ADJUSTMENT
Connection:
Adjusting Procedure:
1. Connect a digital voltmeter to theTP1651 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:
Adjusting Procedure:
Connect an oscilloscope to the TP1960 and TP1901 (GND) on the
MONITOR board.
5-4-1. Voltage Set Up Adjustment
Adjustthesetso that the Alevelof the waveformontheoscilloscope
is 6.6 ±0.1 Vp-p. (Refer to the 5-7. video bus adjustment)
5-4-2. Position Set Up Adjustment
Check the Blevel of the waveform on the oscilloscope is 4.7 ±0.1
Vp-p and adjust the RV1501 so that the Clevel of the waveform
on the oscilloscope is –1.9 ±0.1 Vp-p.
digital
voltmeter
TP1901 (GND
)
TP1651
set +
–
+
–
TP1901 (GND)
TP1960
set
osclloscope
A
B
0
V
C
5-5. OSD DOT CLOCK CHECK
Connection:
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:
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)
Condition: (5-7-1 to 5-7-9)
Input the NTSC video signal (10 step (no burst)) (1Vp-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 values to the EEPROM.
Note:It carries out, only when EEPROM (IC1451) is exchanged.
3. Pressthe[TV MENU] key toselect“FORFACTORY”, and press
the [ENTER] key to enter the adjustment mode.
4. If entering the adjustment mode, press the [TV MENU] key to
selectitem,andpressthe[ENTER] keyto executealladjustment
items mentioned below.
+
–
TP1901 (GND)
TP1515
set
frequency counter
(high impedance probe)
+
–
TP1901 (GND)
TP1510
set
frequency counter
(high impedance probe)
+
–
NTSC pattern
generator
TP1901 (GND)
TP1963 or
TP1964 or
TP1965
set
osclloscope
INPUT VIDEO jack
(JK501)
All manuals and user guides at all-guides.com

20
ICF-DVD57TV
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 ./> keys so that the Flevel of the
waveform on the oscilloscope is 4.0 ±0.05 Vp-p.
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 ./> keys so that the Blevel of the
waveform on the oscilloscope is 1.0 ±0.1 Vp-p.
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 Blevel of the
waveform on the oscilloscope is 1.0 ±0.1 Vp-p.
5-7-8. R-Sub CONT (R-ch Sub Contrast) Adjustment
Adjusting Procedure:
1. Connect an oscilloscope of 10 step voltage to theTP1963 and
TP1901 (GND) on the MONITOR board.
2. Adjust the ./> keys so that the Elevel of the
waveform on the oscilloscope is 3.25 ±0.1 Vp-p.
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 Clevel of the
waveform on the oscilloscope is 2.1 ±0.1 Vp-p.
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 Dlevel of the
waveform on the oscilloscope is 3.0 ±0.1 Vp-p.
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 Elevel of the
waveform on the oscilloscope is 3.25 ±0.1 Vp-p.
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 Alevel of the
waveform on the oscilloscope is 1.0 ±0.05 Vp-p.
B
0
V
B
0
V
E
0
V
F
0
V
E
0
V
A
0
V
C
0
V
D
0
V
All manuals and user guides at all-guides.com