Sony AVDK-150-B, AVDK-150-E, AVDK-150-G, AVDK-150-N, AVDK-150-R Service manual
AVD-K150B/K150E/K150G/
K150N/K150R
SERVICE MANUAL
Ver 1.0 2004.06
AVD-K150B/K150E/K150G/K150N/K150R is the
Amplifier, DVD/VIDEO player and tuner section
in DAV-D150B/D150E/D150G/D150N/D150R.
• Manufactured under license from Dolby Laboratories. "Dolby", "Pro
Logic", and the double-D symbol are trademarks of Dolby Laboratories.
Confidential unpublished works. Copyright 1992 -1997 Dolby
Laboratories. All rights reserved.
• DTS and DTS Digital Surround are registered trademarks of Digital
Theater Systems, Inc.
AEP Model
AVD-K150B/K150E/K150N/K150R
UK Model
AVD-K150G
Model Name Using Similar Mechanism NEW
DVD Mechanism Type DP-7C
Optical Pick-up Name PVR-502W
VCR Mechanism Type D35 (N)
General
Power requirements AC 230 V , 50/60 Hz
Power consumption 74W
Dimensions (approx.) 430 x 98 x 386 mm
x 15 1/4inches) (W x H x D)
Mass (approx.) 6.5 kg (14 lb 6 oz)
Operating temperature 5 °C to 35°C (41°F to 95°F)
Operating humidity 5 % to 90 %
DVD Section
Laser Semiconductor laser (Wavelength
Signal system PAL
Frequency response DVD (PCM 48 kHz): 10 Hz to 22 kHz
Signal-to-noise ratio More than 80 dB (ANALOG OUT
Harmonic distortion Less than 0.05%
VIDEO Section
Head system 4 heads helical scan azimuth system
Television system PALB/G colour system (150E)
Recording format PAL
Tape speed PAL/MESECAM; 23.39 mm/s (SP),
DVD: 650nm, CD: 780nm)
CD: 10 Hz to 20 kHz
connectors only)
PAL B/G, SECAM L colour system (150B)
PAL I colour system (150G)
PAL B/G, SECAM D/K colour system (150N)
PAL (B/G, I/I), SECAM D/K colour system (150R)
16.69 mm/s (LP)
(17 x 3
SPECIFICATIONS
7
/
8
FM Tuner
AM Tuner
Amplifier Section
Maximum recording time SP: 4 hour (E-240 tape), LP: 8 hour
Rewind time About 180 seconds (E-180 tape)
Input level VIDEO: 1.0 V(p-p), 75 ohms, unbalanced
Output level VIDEO: 1.0 V(p-p), 75 ohms, unbalanced
Tuning Range
Intermediate Frequency 10.7 MHz
Tuning Range 522 - 1,611 kHz
Intermediate Frequency 450 kHz
Stereo mode 70W + 70W (6 Ω at 1 kHz, THD 10 %)
Surround mode Front: 70W/ch (6 Ω at 1 kHz, THD 10 %)
• Design and specifications are subject to change without notice.
(E-240 tape)
AUDIO: -6.0 dBm, more than 10 kohms (SCART)
-6.0 dBm, more than 47 kohms (RCA)
DIGITALAUDIO IN: Optical connector x 1
65 - 74 MHz (150R)
87.5 - 108.0 MHz (ALL MODEL)
Center*: 70W (6 Ω at 1 kHz, THD 10 %)
Surround*: 70W/ch (6 Ω at 1 kHz, THD 10 %)
Subwoofer*: 100W (4 Ω at 30 Hz, THD 10 %)
*
Depending on the sound mode settings and the source,
there may be no sound output.
Inputs AV 2, AV 3, OPTICAL IN (AV3 OPT)
9-877-959-01
2004F1678-1
© 2004.06
DVD/VCR RECEIVER
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
AVD-K150B/K150E/K150G/K150N/K150R
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
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.
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 pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output several times.
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.
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 ARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
2
• SERVICE POSITION-1 (DVD Mechanism Deck)
Extension cable (J-2501-242-A, J-2501-245-A) is required to
inspect the DVD mechanism deck.
DVD mechanism deck
J-2501-245-A (1mm/23P/L300)
AVD-K150B/K150E/K150G/K150N/K150R
J-2501-242-A (1mm/11P/L300)
• SERVICE POSITION-2 (VIDEO Mechanism Deck)
Perform the operation check of the VIDEO mechanism deck
after the VCR board and the VIDEO mechanism deck are
turned upside down.
VCR board
SMPS board
VIDEO mechanism deck
3
AVD-K150B/K150E/K150G/K150N/K150R
TABLE OF CONTENTS
1. GENERAL ................................................................... 5
2. DISASSEMBLY
2-1. Cover, Front Panel Assembly .......................................... 12
2-2. DISPLAY/KEY Board .................................................... 13
2-3. Video Mechanism Deck .................................................. 13
2-4. DVD Mechanism Deck ................................................... 14
2-5. SMPS Board.................................................................... 14
2-6. VCR Board...................................................................... 15
2-7. DVD & AMP Board ........................................................ 15
3. ELECTRICAL ADJUSTMENTS
3-1. VCR Section Electrical Adjustment ................................ 16
3-2. Electrical T roub leshooting Guide.................................... 17
3-3. DVD & AMP Section Electrical
Troubleshooting Guide .................................................... 32
4. MECHANICAL ADJUSTMENTS......................... 40
5. DIAGRAMS
5-1. Block Diagram – DVD (OVERALL) Section –.............. 52
5-2. Block Diagram – DVD (AMP) Section –........................ 53
5-3. Block Diagram – VCR/PANEL Section –....................... 54
5-4. Block Diagram – VCR (Y/C) Section – .......................... 55
5-5. Block Diagram – VCR (TU-VPS) Section – ................... 56
5-6. Block Diagram – VCR (HI-FI) Section –........................ 57
5-7. Block Diagram – VCR POWER Section –...................... 58
5-8. Block Diagram – POWER Section –............................... 59
5-9. Pr inted W ir ing Board
– DVD & AMP Section (Component Side) – ................. 60
5-10. Printed Wiring Board
– DVD & AMP Section (Conductor Side) – ................... 61
5-11. Schematic Diagram
– MPEG Section – [DVD & AMP Board] (1/6) .............. 62
5-12. Schematic Diagram – RF & SERVO Section –
[DVD & AMP Board] (2/6) ............................................. 63
5-13. Schematic Diagram – AUDIO, µ_COM Section –
[DVD & AMP Board] (3/6) ............................................. 64
5-14. Schematic Diagram – DIGITAL AMP Section –
[DVD & AMP Board] (4/6) ............................................. 65
5-15. Schematic Diagram – PWM & CODEIC Section –
[DVD & AMP Board] (5/6) ............................................. 66
5-16. Schematic Diagram – INTERFACE Section –
[DVD & AMP Board] (6/6) ............................................. 67
5-17. Printed Wiring Board – VCR Section –........................... 70
5-18. Schematic Diagram – VCR SYSTEM Section –
[VCR Board] (1/6)........................................................... 71
5-19. Schematic Diagram – AVCP/SECAM Section –
[VCR Board] (2/6)........................................................... 72
5-20. Schematic Diagram – HI-FI/SWITCH Section–
[VCR Board] (3/6)........................................................... 73
5-21. Schematic Diagram – TUIF/NICAM/VPS Section –
[VCR Board] (4/6)........................................................... 74
5-22. Schematic Diagram – SCART/SWITCH Section–
[VCR Board] (5/6)........................................................... 75
5-23. Schematic Diagram – VCR POWER Section –
[VCR Board] (6/6)........................................................... 76
5-24. Printed Wiring Board – DISPLAY/KEY Section –......... 78
5-25. Schematic Diagram – DISPLAY/KEY Section –........... 79
5-26. Printed Wiring Board – SMPS Section – ........................ 80
5-27. Schematic Diagram – SMPS Section – .......................... 81
6. EXPLODED VIEWS
6-1. Front Panel Section ......................................................... 83
6-2. Overall Section ................................................................ 84
6-3. DVD Mechanism Deck ................................................... 85
6-4. Video Mechanism Deck -1 .............................................. 86
6-5. Video Mechanism Deck -2 .............................................. 87
6-6. Video Mechanism Deck -3 .............................................. 88
7. ELECTRICAL PARTS LIST .................................. 89
4
Front Panel
ML
DVD: Go to NEXT chapter/track. Press and hold for a fast forward search.
VIDEO: Advances the tape from STOP mode or for fast forward picture search.
X (PAUSE)
Pause playback or recording
temporarily.
z REC/ITR
To record normally or to activate Instant Timer Recording.
A DVD
Opens or closes
the disc tray.
Remote Sensor
Point the DVD/VCR Receiver remote
control here.
Display window
Shows the current status of the DVD/VCR
Receiver.
Disc Tray (DVD deck)
Insert a disc here.
@ / 1
Switches the DVD/VCR Receiver ON and OFF.
lm
DVD: Go to beginning of current chapter/track or to previous chapter/track.
Press and hold for a fast reverse search.
VIDEO: Rewinds the tape from STOP mode or for fast reverse picture search.
H (PLAY)
To play back a disc or
a recorded tape.
x (STOP)
Stops playback or recording.
INPUT SELECT
Selects the VIDEO deck's
source (Tuner, AV1, AV2,
AV3 OPT or AV3).
CH/PRESET (+/-)
Scans up or down through
memorized channels or radio
frequencies (stations).
TUNER FM/AM
Selects Radio opera-
tion mode.
AV 3 IN (VIDEO/AUDIO (Left/Right))
Connect the audio/video output of an
external source (Audio system, TV/ Monitor,
another VCR).
Video Cassette Compartment (VIDEO deck)
Insert a video cassette here.
A VIDEO
Ejects the tape in the VIDEO deck.
VOLUME
Adjusts sound level of speakers.
DVD/VIDEO
Toggles control
between the DVD deck
and the VIDEO deck.
AVD-K150B/K150E/K150G/K150N/K150R
SECTION 1
GENERAL
This section is extracted
from instruction manual.
5
AVD-K150B/K150E/K150G/K150N/K150R
Display Window
SHUFFLE RANDOM playback active
Indicates repeat mode
PGM Programmed playback active.
BIL Indicates when a BILINGUAL broadcast is being received.
STEREO Indicates a stereo broadcast is being received.
RDS Lights up when the FM station tuned
Indicates encoding format of the
current disc.
SP LP Displays the recording
and playback speed.
A cassette is in the VIDEO deck.
HI-FI Indicates the unit is playing
back a tape recorded in Hi-Fi.
ANGLE active
OPT Indicates source of DVD/VCR
Receiver is DIGITAL AUDIO IN.
is transmitting RDS data.
Indicates sound mode is
DOLBY PROLOGIC II.
SHUFFLE
REPEAT
PGM
1AB
MP3
DVD
VCD
PBC
Indicates playback or pause mode.
PBC Indicates PBC On mode
DVD DVD inserted.
CD Audio CD inserted.
VCD Video CD inserted
MP3 MP3 disc inserted
BIL
STEREO
TRKCHAP
Indicates clock, total playing time, elapsed time, chapter number, track number,
channel, radio frequency, volume, channel or current deck status (Playback,
Pause, etc).
PCM
D
VIDEO
PL
VIDEO
and channels are selected at DVD/VCR Receiver.
RDS
ANGLE
REC
OPTTIMER
REC DVD/VCR Receiver is
Recording.
TIMER DVD/VCR Receiver is in timer
recording or a timer recording is programmed.
DVD/VCR Receiver functions are available
HI-FI
LPSP
6
Remote Control
AVD-K150B/K150E/K150G/K150N/K150R
VIDEO
Select the output source to VIDEO.
DVD
Sets the output source to DVD.
INPUT SELECT
Selects the VIDEO deck's source
(AV1, AV2, AV3 OPT , AV3, or Tuner).
TUNER FM/AM
Selects the DVD/VCR Receiver's tuner as
the listening choice. (FM and AM bands)
0-9 numerical buttons
Selects numbered options in a menu.
TUNING (+/-)
To tune in the desired station.
MEMORY
Memorize a radio station frequency into
the tuner.
RDS
Start a search for a specific PS type.
SHUFFLE
Plays tracks in random order.
PROGRAM
Enters to the program edit mode or exits
from that.
z REC/ITR
Records normally or activates Instant
Timer Recording.
TV/VIDEO
To view channels selected by the VIDEO
tuner or by the TV tuner.
SP/LP
Selects recording speed.
CM SKIP
Fast forwards picture search through 30
seconds of recording.
SHOWVIEW
To display the programme menu for
HOWVIEW
S
System programming.
DVD TOP MENU
Displays the disc's Title menu, if available.
DVD MENU
Accesses menu on a DVD disc.
B/b/V/v (left/right/up/down)
CH/PRESET(+/-): Selects a program of
Selects an option in the menu.
VIDEO or Tuner. Adjusts manually the
tape's picture onscreen.
ENTER/OK
Acknowledges menu selection.
DVD DISPLAY, CLK/CNT
Accesses On-Screen display. Switches
among the clock and tape counter.
RETURN
Returns the setup menu.
TV @ / 1
Switches TV ON and OFF.
@ / 1
Switches DVD/VCR Receiver ON and OFF.
TV Control Buttons (see page 41)
• VOL +/- : Adjusts TV's volume.
• CH +/- : Selects TV's channel.
• TV/VIDEO: Selects the TV's source.
CLEAR
Removes a track number on the program
menu. To clear preset stations from the
tuner memory.
Playback Control Buttons
• H (PLAY)
Starts playback.
• x (STOP)
Stops playback.
• . (PREV) (DVD mode only)
Go to beginning of current chapter or
track or go to previous chapter or track.
• > (NEXT) (DVD mode only)
Go to next chapter or track.
• m/M (SLOW t/T)
DVD: For picture search or slow playback backward or forward.
VIDEO: Rewinds or advances the tape
in STOP mode or for picture search.
• X (PAUSE)
zPause playback or recording temporarily.
ANGLE
Selects a DVD camera angle if available.
SUBTITLE
Selects a subtitle language.
AUDIO
Selects an audio language (DVD) or an
audio channel (CD).
REPEAT
Repeat chapter, track, title, all.
A-B
Repeats sequence.
SETUP/MENU (i)
Accesses or returns DVD setup menu
and VIDEO setup menu.
SOUND FIELD
Selects sound mode between BYPASS,
PRO LOGIC, PRO LOGIC II (MOVIE,
MUSIC, MATRIX) and 3D SURROUND.
VOL (+/-)
Adjusts speaker volume.
MUTING
Momentarily silence the speaker of the
DVD/VCR Receiver.
Note
This remote control uses the same buttons for VIDEO and DVD functions (ex. PLAY).
To use the VIDEO, first press the VIDEO button.
To use the DVD, first press the DVD button.
7
AVD-K150B/K150E/K150G/K150N/K150R
Rear Panel
Connect the six supplied speakers to these terminals.
EURO AV2 DECODER/EXTERNAL (VIDEO IN)
Connect to Pay-TV decoder, Set Top Box or another video
recorder.
AC Power Cord
Plug into the power source.
FM ANTENNA Connectors
Connect the FM antenna to this terminal.
SPEAKERS Connectors
ANTENNA IN
Connect the VHF/UHF/CATV
antenna to this terminal.
ANTENNA OUT (DVD/VIDEO OUT)
Connect to a TV with RF coaxial inputs.
EURO AV1 (TO TV) (VIDEO IN+OUT/DVD OUT)
Connect to your TV set or another video recorder.
Dust Protection Cap
Remove the dust protection cap from the OPTICAL IN
jack and connect the optical digital cable (not supplied)
securely so that the configurations of both the cable and
the connector match. Keep the dust protection cap and
always reattach the cap when not using the connector to
protect against dust intrusion.
AV3 (OPTICAL IN)
(DIGITAL AUDIO IN)
Connect to a digital audio output on a
digital device.
AM ANTENNA Connectors
Connect the AM antenna to this terminal.
Remote control battery installation
Detach the battery cover on the rear of
the remote control, and insert two R6
AA
AA
Caution
Do not mix old and new batteries. Never mix different
types of batteries (standard, alkaline, etc.).
(size AA) batteries with and
aligned correctly.
When using the remote control, point it
at the remote sensor on the unit.
Do not touch the inner pins of the jacks on the rear
panel. Electrostatic discharge may cause permanent
damage to the unit.
8
AVD-K150B/K150E/K150G/K150N/K150R
Connections
TV and Decoder (or Set Top Box) Connections
Make one of the following connections, depending on the capabilities of your existing equipment.
AERIAL
Rear of TV
Tips
•
Depending on your TV and other equipment you wish
to connect, there are various ways you could connect
the DVD/VCR Receiver. Use one of the connections
described below.
•
Please refer to the manuals of your TV, VIDEO,
Stereo System or other devices as necessary to
make the best connections.
Caution
− Make sure the DVD/VCR Receiver is connected
directly to the TV. Select the correct AV input on your
TV.
− Do not connect your DVD/VCR Receiver to TV via
your VIDEO. The DVD image could be distorted by
the copy protection system.
Basic connections (AV)
Connect the EURO AV1 (TO TV) on the rear panel
1
of the DVD/VCR Receiver to the scart input socket
on the TV using a SCART lead (E).
Some TV broadcasters transmit encoded television
2
signals which you can only see with a purchased or
rented decoder.You can connect such a decoder
(descrambler) to the DVD/VCR Receiver (D).
SCART INPUT
Basic connection (RF)
Connect the aerial cable (A) from your indoor/ out-
1
door aerial to ANTENA IN jack on the rear panel of
DVD/VCR Receiver.
Connect the supplied RF cable (R) from the
2
ANTENA OUT jack on the rear panel of DVD/VCR
Receiver to your television's Aerial Input.
Notes
When you connect the DVD/VCR Receiver to your TV,
be sure to turn off the power and unplug both units from
the wall outlet before making any connections.
9
AVD-K150B/K150E/K150G/K150N/K150R
Connections (Continued)
Radio Aerial Connections
Connect the supplied FM/AM antennas for radio listening.
Connect the AM loop antenna to the AM antenna
1
connectors.
Connect the FM wire antenna to the FM antenna
2
connectors.
Notes
• To prevent noise pickup, keep the AM loop antenna
away from the DVD/VCR Receiver and other components.
• Be sure to fully extend the FM wire antenna.
• After connecting the FM wire antenna, keep it as hori-
zontal as possible.
Digital Device Connections
Connect the OPTICAL IN jacks on the DVD/VCR
Receiver to the digital audio out (optical) jacks on your
digital device (Game device, Digital Set Top Box, etc.),
using optional optical audio cable.
To select source of DVD/VCR Receiver to OPTICAL IN,
press INPUT SELECT repeatedly on the remote control
until "AV3 OPT" appears in the display window.
Notes
• If the audio format of the digital output does not
match the capabilities of your DVD/VCR Receiver, the
DVD/VCR Receiver will produce a strong, distorted
sound or no sound at all.
• The Optical input function is available only when the
other unit's Sampling Frequency is 32 - 48kHz.
Accessory Audio/Video (A/V)
Connections to DVD/VCR Receiver
Connect the AV3 IN jacks on the DVD/VCR Receiver to
the audio/video out jacks on your accessory component, using optional audio/video cables.
10
Connections (Continued)
AVD-K150B/K150E/K150G/K150N/K150R
Speaker System Connections
Connect the speakers using the supplied speaker cords
by matching the colors of the terminals and those of the
cords. To obtain the best possible surround sound,
adjust the speaker parameters (distance, level, etc.).
Notes
• Be sure to match the speaker cord to the appropriate
terminal on the components: 3 to 3 and # to #. If
the cords are reversed, the sound will be distorted
and lack bass.
• If you use front speakers with low maximum input rating, adjust the volume carefully to avoid excessive
volume output to the speakers.
Do not disassemble the front covers of supplied speakers.
•
Front Speaker
(Right)
Center
Speaker
Front Speaker
(Left)
Speaker Positioning
For a normal setup use 6 speakers (2 front speakers,
center speaker, 2 rear speakers and subwoofer).
•
Front Speakers
Based on your listening position, set up the speakers
at equal distance. And by hearing position, set up an
interval between speakers of 45 degree.
•
Center Speaker
It is ideal that the center speakers and front speakers
are same height. But normally place it above or below
the television as shown below.
•
Rear Speakers
Place the rear surround speakers to the left and right
behind the primary listening area. These speakers
recreate sound motion and atmosphere required for
surround playback. For best results, do not install the
rear speakers too far behind the listening position,
install them at or above the level of the listenerês ears.
It is also effective to direct the rear speakers towards
a wall or ceiling to further disperse the sound.
In the case of a smaller room size, if the audience is
near to the rear wall set the rear speakers opposite
each other, and set the rear speakers 60 - 90 cm
above the listener's ears.
•
Subwoofer
This can be placed in any front position.
Rear speaker
(Right surround)
About Ferrite Core
1
2
3
Be sure to attach the ferrite core to
the speaker cables (for connecting to
this unit).
This ferrite core can reduce noises.
How to attach the ferrite core.
1
Push the stopper [a] of the ferrite core
to open.
2
Wind the Center and Subwoofer
Speaker cables once on the ferrite core.
Pass the others straight on the ferrite
core.
3
Close the ferrite core until it clicks.
Subwoofer
Rear speaker
(Left surround)
Subwoofer
Center Speaker
Front
Speaker
(Left)
Rear
Speaker
(Left)
Speaker Positioning Example
Note
Speaker stand is optional.
Attaching the foot pads
To prevent speaker vibration or
movement while listening, attach the
supplied foot pads to the speaker, as
shown.
Attaching the color labels
Attach the color labels onto the rear
panel of the speakers before connecting the speakers.
Front
Speaker
(Right)
Rear
Speaker
(Right)
Foot pads
FRONT L
Color labels
11
AVD-K150B/K150E/K150G/K150N/K150R
SECTION 2
DISASSEMBLY
•This set can be disassembled in the order shown below.
•The dotted square with arrow (
( ) are completed.
SET
) prompts you to move to the next job when all of the works within the dotted square
2-1.COVER, FRONT PANEL ASSEMBLY
2-2.DISPLAY/ KEY BOARD
(Page 12)
(Page 13)
2-3.VIDEO MECHANISM DECK
(Page 13)
2-6.VCR BOARD
(Page 15)
Note: Follow the disassembly procedure in the numerical order given.
2-1. COVER, FRONT PANEL ASSEMBLY
1
two screws
2-5.SMPS BOARD
(Page 14)
4
cover
2-4.DVD MECHANISM DECK
2
three screws
(Page 14)
2-7.DVD & AMP BOARD
(Page 15)
12
6
three hooks
7
three hooks
5
volume knob
8
front panel assembly
3
two screws
2-2. DISPLAY/KEY BOARD
k
4
DISPLAY/ KEY board
1
t
hree claws
AVD-K150B/K150E/K150G/K150N/K150R
2
four
claws
2-3. VIDEO MECHANISM DECK
1
s
ix screws
3
connector
PM602,PM601
(
4
VIDEO m
)
echanism dec
2
fl
exible cable
3
connector
PMCO1
(
)
13
AVD-K150B/K150E/K150G/K150N/K150R
)
)
2-4. DVD MECHANISM DECK
1
two
screws
7
DVD mechanism deck
6
door case
2
two
screws
3
shield cover
5
flexible cable (PMD01)
4
flexible cable (PMD03
2-5. SMPS BOARD
4
connector (PSW01)
5
connector (PSV01)
1
four screws
2
shield
3
connector (PW101)
7
SMPS
board
6
screw (3
× 10
14
2-6. VCR BOARD
)
)
7
8
flexible cable (PVD03)
5
VCR-DISPLAY pwb
flexible cable (PVD02)
holder
6
connector (PDV01)
q;
three
AVD-K150B/K150E/K150G/K150N/K150R
1
four
screws
screws
9
qs
screw
VCR
board
4
bracket
2
connector (PVS01
2-7. DVD & AMP BOARD
6
DVD & AMP board
qa
4
four screws
two claws
3
1
connector (PDV01)
2
flexible cable (PDV02
screw
3
flexible cable (PDV03)
5
four screws
15
AVD-K150B/K150E/K150G/K150N/K150R
SECTION 3
ELECTRICAL ADJUSTMENTS
3-1. VCR SECTION ELECTRICAL ADJUSTMENT
1. Servo Adjustment
1) PG Adjustment
• Test Equipment
a) OSCILLOSCOPE
b) NTSC MODEL : NTSC SP TEST TAPE
• Adjustment And Specification
MODE
PLAY
MEASUREMENT POINT ADJUSTMENT POINT SPECIFICATION
V.Out
H/SW(W373, W374)
R/C TRK JIG KEY 6.5 ± 0.5H
• Adjustment Procedure
a) Insert the SP Test Tape and play.
b) Connect the CH1 of the oscilloscope to the H/SW(W373, W374) and CH2 to the Video Out for the VCR.
c) Trigger the mixed Combo Video Signal of CH2 to the CH1 H/SW(W373, W374), and then check the dis-
tance (time difference), which is from the selected A(B) Head point of the H/SW(W373, W374) signal to
the starting point of the vertical synchronized signal, to 6.5H ± 0.5H (412µs, 1H=63µs).
Note - Press FRONT CH UP KEYand FRONT PLAYKEY on Deck playback, and it goes in to A TR PRE-
SET. after the SP Test Tape is inserted.
• PG Adjustment Method
a-1) Payback the SP standard tape
b-2) Press the “O” key on the Remote controller and the “PLAY” key on the Front Panel the same time,
then it goes in to Tracking initial mode.
c-3) Repeat the above step(No.b-2), then it finishes the PG adjusting automatically.
d-4) Stop the playback, then it goes out to PG adjusting mode after mony the PG data.
• CONNECTION
V.Out
OSCILLOSCOPE
H/SW(W373, W374)
CH1 CH2
•WAVEFORM
H/SW
Composite
VIDEO
6.5H(412µs)
R/C KEY
V.out
H/SW
(W373, W374)
16
3-2. ELECTRICAL TROUBLESHOOTING GUIDE
1. Power (SMPS) CIRCUIT
AVD-K150B/K150E/K150G/K150N/K150R
(1) No 5.3VA (SYS/Hi-Fi/TUNER)
NO 5.3VA.
YES
Is the F101 normal?
YES
Is the BD101
NO
(Use the same Fuse)
NO
normal?
YES
Is the R101
NO
normal?
YES
Is Vcc(8.5~21V) sup-
NO
plied to IC101 Pin7?
YES
Replace the F101.
Replace the
BD101.
Replace the R101.
Is the D102
normal?
NO
Check or Replace
the D102.
(2) No 12VA (TO CAP, DRUM MOTOR)
NO 12VA.
YES
Is the Vcc(13V) supplied
NO
to (+) terminal in D115?
YES
Is the Vcc(12V) supplied
NO
to (-) terminal in D115?
YES
Check or Replace
the D110.
Replace the D115.
Check or Replace
the Motor Vcc.
(3) No 5.0V (SYS/Hi-Fi/TUNER)
Is the D112 normal?
YES
Is there about 2.5V
at the IC103 Vref?
YES
Check the Main PCB
5.3VA/5.0V Line short?
NO
NO
Replace the D112.
Replace the IC103.
NO 5.0VA.
YES
Is 5.3VA put into
the Q160 Emitter?
YES
Is the Q162 Base
“H”?
YES
Is about 5V put into
the Q160 Base?
YES
Check or Replace
the Q162/Q160.
NO
NO
NO
5.3VA Line Check.
Check the Power
Control.
Check or Replace the
Q162, R157, R158, R159.
17
AVD-K150B/K150E/K150G/K150N/K150R
(4) No 5V (TO DVD)
NO 5V.
YES
Is 5.3VA put into
the Q160 Emitter?
YES
Is the Q162 Base
“H”?
YES
Is about 5V put into
the Q160 Base?
YES
Check or Replace
the Q162/Q160
NO
NO
NO
5.3VA Line Check.
Check the Power
Control.
Check or Replace the
Q162, R157, R158, R159.
(5) No 33V (TUNER)
No 33V.
YES
Is Q163 Base “H”?
YES
Check or Replace
Q161, R154, R155.
NO
Check the Power
Control.
18
2. SYSTEM/KEY CIRCUIT
(1) AUTO STOP
Auto Stop
YES
Does the SW25 waveform
appear at the IC501
Pin105?
YES
Do the T-UP Reel Pulses
appear at the IC501 Pin49?
YES
AVD-K150B/K150E/K150G/K150N/K150R
NO
NO NO
Check the Drum Motor
signal.
Do T/UP Reel Pulses
appear at the Q514
Base terminal ?
YES YES
Does 5.2V appear at the
RS501?
NO
Replace the IC501.
Replace the T/UP Reel
Sensor (RS501).
(2) The unstable loading of a Cassette tape
The unstable loading of a
Cassette tape
YES
Is 12V applied to the
PMC01 Pin8?
YES
Does the “H” signal appear
at the IC501 Pin30 during
inserting the CST ?
YES
Does the “L” signal appear
at the IC501 Pin72 during
inserting the CST?
YES
NO
NO
Check the CST SW and
the peripheral circuitry.
NO
Check the Power Circuit.
Check the Power.
Is 5.3V applied to the
R544 ?
YES
Refer to SMPS 5.3VA
troubleshooting.
NO
Check the Deck
Mechanism.
Caution :
Check the IC501
Pins68, 69, 70, 71.
Auto stop can occur because Grease or Oil is dried up
19
AVD-K150B/K150E/K150G/K150N/K150R
3. SERVO CIRCUIT
(1) Unstable Video in PB MODE
Unstable Video in
PB Mode.
YES
Does the Noise level of the
screen change
periodically?
YES
Do the CTL pulses appear
at the IC501 Pin8?
YES
Does the CFG waveform
appear at the IC501
Pin9?
YES
On tracking do the CTL
pulses move?
YES
Does the Video Envelope
waveform appear at the
IC501 Pin24?
YES
NO
NO
NO
Is adjusting the height of
the CTL Head accurate?
Replace the IC501.
Refer to “When the Y signal
doesn’t appear on the
screen in PB Mode”.
NO
Readjust the height of the
CTL Head.
Replace the IC501.
(2) When the Drum Motor
(2) doesn’t run.
When the Drum Motor
doesn’t run,
Does 12V appear at the
PMC01 Pin8?
YES
Does 2.8V appear at the
PMC01 Pin12?
YES
Check the connector
(PMC01) and the Drum
Motor Ass’y.
NO
NO
Refer to “(2)
No 12VAof Power section”
Do the Drum PWM Pulses
appear at the IC501
Pin107?
YES
Aren’t the foil patterns and
the Components between
IC501 Pin107 and PMC01
Pin12 short?
Do the DFG Pulses appear
at the IC501 Pin104?
YES
Do the Drum PWM Pulses
appear at the IC501
Pin107?
YES
Aren’t the connecting patterns and the Components
between IC501 Pin107 and PMC01 Pin12 short?
NO
NO
NO
Do the DFG Pulses appear
at the PMC01 Pin11?
YES
Replace the Cap M.
Aren’t the foil patterns and
the Components between
IC501 Pin104 and PMC01
Pin11 short?
Replace the IC501.
NO
20
(3) When the Capstan Motor doesn’t run,
When the Capstan Motor doesn’t run,
AVD-K150B/K150E/K150G/K150N/K150R
Does 12VAappear at the PMC01?
YES
Does 2.8V appear at the PMC01?
YES
Check the PMC01 and the Capstan
Motor Ass’y.
Aren’t the foil patterns and Components
between IC501 Pin108 and PMC01
Pin9 short?
Does the CFG signal come into the
IC501 Pin9?
YES
Does the Capstan PWM signal appear at
the IC501 Pin108?
YES
NO
NO
NO
NO
YES
YES
Refer to “SMPS(CAPSTAN/12Volt)
Trouble Shooting”.
Does the PWM signal appear at the
IC501 Pin108?
NO
Does the CFG signal appear at the
PMC01 Pin1?
NO
Check the Capstan Motor Ass’y.
Aren’t the foil patterns and component
between IC501 Pin9 and PMC01
Pin1 short?
Aren’t the foil patterns and Components
between IC501 Pin108 and PMC01
Pin9 short?
Replace the IC501.
21
AVD-K150B/K150E/K150G/K150N/K150R
(4) KEY doesn’t working
KEY doesn’t working.
Is 5V applied to the IC501
Pin36?
YES
Does LED or FLD change
when a function button is
pressed?
NO
NO
Refer to “SMPS 5.3VA
Trouble Shooting”.
Replace the defective
switches.
22
4. Y/C CIRCUIT
(1) No Video in EE Mode,
No Video in EE Mode
AVD-K150B/K150E/K150G/K150N/K150R
Does the Video signal
appear at the IC301 Pin48?
YES
Is 5V applied to the IC301
Pins18, 24, 42, 55, 72, 91?
YES
Does the Video signal
appear at the IC301 Pin65?
YES
Does the Video signal
appear at the IC501 Pin19?
YES
Does the Video signal
appear at the Emitter terminal of the Q307, Q308?
NO
Check the 24Pin of Tuner.
NO
Check the 5.2VT, 5.3VA
Line. (Power Circuit)
NO
Is I2C BUS signal applied to
the IC301 Pins68, 69?
Chck the path of the signal
NO
between the IC301 Pin65
and IC501 Pin17.
Does the 12VT, 5.3VA
NO
appear at the Emitter terminal of the Q804, Q308.
Replace the Q804, Q308.
YES
YES
NO
NO
Check the System Circuit.
(Refer to ‘SYSTEM I
CHECK Trouble Shooting’)
Check C316. (AGC)
Replace the IC301.
Check the 12VT, 5.3VA
Line. (Power Circuit)
YES
2
C BUS
23
AVD-K150B/K150E/K150G/K150N/K150R
3. Y/C CIRCUIT
(2) When the Y(Luminance) signal doesn’t appear on the screen in PB Mode,
Is 5.2VT, 5.3VA applied to the
IC301 Pins24, 42, 55, 72, 91?
YES
Is the I2C Bus siganl applied
to the IC301 Pins68, 69 ?
YES
Does the normal RF signal
appear at the IC301 Pin78?
YES
Does the Y(Luminance) RF
signal appear at the IC301
Pin76?
YES
NO
NO
NO
NO
Check the line of the 5.2VT,
5.3VALine. (Power Circuit)
Refer to ‘SYSTEM I2C BUS
CHECK Trouble Shooting’.
Is the V.H.S/W signal
applied to the IC301 Pin70?
YES
Is V.H.S/W “H” about 3.4V
at the IC301 Pin70?
YES
Clean the Drum.
Check the path of the
Y(Luminance) RF signal.
(Check the C312)
NO
NO
NO
YES
Check the System Circuit.
(IC501 Pin105)
Check the V.H.S/W level.
(Check R303, R304)
Replace the IC301.
Is the Y(Luminance) Video
waveform showed up at
theIC301 Pin43?
YES
Replace the IC301.
NO
Check the path of the
Y(Luminance) RF signal.
(Check C327)
YES
24
AVD-K150B/K150E/K150G/K150N/K150R
3. Y/C CIRCUIT
(3) When the C(Color) signal doesn’t appear on the screen in PB Mode,
Is 5.2VT/5.3VAapplied to the
IC301 Pins24, 42, 55, 72, 91.
YES
Is the Color Rotary signal
applied to the IC301
Pin70?
YES
Is Color Rotary “H”
about 3.4V?
YES
Does the Color signal
appear at the IC301
Pin25 ?
YES
Replace the IC301.
NO
NO
NO
NO
Check the line of the 5.2VT/
5.3VALine. (Power Circuit)
Check the Color Rotary
Circuit. (IC501 Pin99 )
Check the Color Rotary
level. (Check the R303)
Does the X301(4.43MHZ)
oscillate?
Does the Color signal
appear at the IC301 Pin21?
YES
Replace the IC301.
NO
NO
Replace the X301.
Check the Color Pass.
25
AVD-K150B/K150E/K150G/K150N/K150R
3. Y/C CIRCUIT
(4) When the Video signal doesn’t appear on the screen in REC Mode,
Is the EE signal normal?
YES
Is 5.2VT/5.3VAapplied to the
IC301 Pins24,42,55,72,91?
YES
Does PB Mdoe operate
normally?
YES
Does the RF signal appear
at the IC301 Pin78?
YES
Does the REC RF signal
appear at the IC301
Pins88,89,94,95?
YES
NO
NO
NO
NO
NO
Check EE Mode.
Check the line of the 5.2VT/
5.3VALine.(Power Circuit)
Check PB Mode.
Is the REC ‘H’ signal
(about 4V) applied to the
IC301 Pin80?
YES
Check REC Luminance
Pass & Color Pass.
Check the circuit of the
IC301 Pins85, 86.
NO
YES
YES
Check the System of REC
‘H’. (the IC501 Pin47
/ the D301)
Replace the IC301.
Check the Drum &
Drum Connector
26
5. Hi-Fi CIRCUIT
(A) No Sound(EE Mode)
No Sound.
YES
AVD-K150B/K150E/K150G/K150N/K150R
Check the TU Audio of IC801
Pins1, 3.
Check the DVD Audio of IC801
Pins4, 5.
Check the AV1 Audio of IC801
Pins6, 7.
Check the AV2 Audio of IC801
Pins8, 9.
Check the AV3 Audio of IC801
Pins10, 11.
Check the Vcc of IC801 Pins34, 40,
IC802 Pin4.
YES
Check the IIC Clock and DATA at
IC801 Pins42, 43, IC802 Pins32, 33.
NO
NO
NO
NO
NO
YES
NO
NO
Check the IC751 Pins30, 31.
Check the DVD MODULE.
(P8D01 Pins3, 5).
Check the Scart1 Jack.
(SC901 Scart1 Audio in Pins2, 6).
Check the Scart2 Jack.
(SC901 Scart2 Audio in Pins2, 6).
Check the front Jack.
(PM602 Pins3, 5).
Check the Power 5.2V, 12VT.
Check the IC501 Pins59, 60.
YES
Check the Audio of IC801 Pins16, 17.
YES
Check the Audio of IC802 Pins22, 26.
YES
Check the JK801.
NO
Replace IC801.
NO
Replace IC802.
27
AVD-K150B/K150E/K150G/K150N/K150R
3. Y/C CIRCUIT
(B) Hi-Fi Playback
PB mode
YES
No Sound.
YES
Check the Vcc of IC801
(Pins34, 40)
YES
Check the Hi-Fi Selection switch.
(IC801 Pin41) and the Tape quality.
YES
Is the RF Envelope at
IC801 Pin44 over 2Vp-p?
YES
Check IC801 Pin42(Data),
Pin43(Clock)
YES
Do Audio Signals appear at
IC801 Pin16(L-CH), 17(R-CH)?
YES
Do Audio Signals appear at
IC802 Pin10(L-CH), 16(R-CH)?
YES
Do Audio Signals appear at
IC802 Pins22, 26?
YES YES
NO
NO
NO
NO
NO
NO
NO
Check Power 5.2V, 12VT.
Check IC501 Pin25
(A.H/SW)
Check the parts of µ-COM
(IC501 Pins59, 60)
Check the Connection at
P3D01 Pins7, 9.
Check the A.IN line of
IC802(C808, C809)
Check the Vcc of IC802
Pin4.
NO
Check Power.
Do Audio Signals appear at
JK801?
NO
Replace IC802.
Check the Jack(JK801)
28
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