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CX-VX55/VX77
SERVICE MANUAL AEP Model
UK Model
Ver. 1.3 2005. 10
E Model
Australian Model
· CX-VX55/VX77 are DVD receiver Photo: CX-VX55
in AVJ-X55/X77.
Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic", Model Name Using Similar Mechanism CX-VX33
and the double-D symbol are trademarks of Dolby Laboratories.
Confidential Unpublished works. Copyright 19921997 Dolby
Laboratories. All rights reserved.
Manufactured under license from Digital Theater Systems, Inc. US Pat. No.
5,451,942 5,956,674, 5,974,380, 5,978,762 and other worldwide patents
issued and pending. "dts" and "DTS Digital Surround" are registered
trademarks of Digital Theatre Systems, Inc. Copyright 1996, 2000 Digital
Theater Systems, Inc. All rights reserved.
SPECIFICATIONS
General Video
Power supply 220 240 V AC, 50/60 Hz Inputs
Power consumption 100 W, No more than 1 W VIDEO (AUDIO IN): Sensitivity: 800 mV
(220 240 V AC) Impedance: 50 kilohms
(at the power saving mode) MIC (phone jacks): Sensitivity: 4 mV
Mass 4.9 kg Impedance: 10 kilohms
External dimensions 430 × 70 × 370.5 mm SCART (AUDIO IN): AEP, UK, CET, RU model:
(W × H × D) Sensitivity: 800 mV
Operating conditions Impedance: 50 kilohms
Temperature: 5 35°C Video output 1.0 V (p-p), 75 ,
Operation status: Horizontal negative sync., RCA jack
Operating humidity 5 85% AEP, UK, CET, RU model:
EURO AV (TO TV)
CD/DVD S VIDEO OUT E3, E41, AUS, SP model:
Laser Semiconductor laser, (Y) 1.0 V (p-p), 75 ohms,
wavelength 650 nm negative sync.,
for VCD and DVD, Mini DIN 4-pin × 1
wavelength 780 nm for CD (C) 0.286 V (p-p), 75 ohms
Emission duration Continuous COMPONENT VIDEO OUT
Signal system CX-VX55: E3, E41, AUS, SP model:
PAL 625/50, NTSC 525/60 (Y) 1.0 V (p-p), 75 ohms,
(AEP, UK, CET, E3) negative sync., RCA jack × 1
NTSC 525/60 (E41) (PB/CB)/(PR/CR) 0.7 V (p-p),
PAL, NTSC (AUS, SP, RU) 75 ohms, RCA jack × 2
CX-VX77: PAL, NTSC
Frequency response 2 Hz 20 kHz (±1.0 dB)
Continued on next page
(audio)
Signal-to-noise ratio More than 75 dB
(audio) (1 kHz, NOP,
20 kHz LPF/A-Filter)
Dynamic range (audio) More than 70 dB
DVD RECEIVER
Harmonic distortion 0.5% (1 kHz, at 12 W position)
(audio) (20 kHz LPF/A-Filter)
9-879-239-04 Sony Corporation
2005J04-1 Personal Audio Division
© 2005. 10 Published by Sony Engineering Corporation
1
CX-VX55/VX77
Tuner Notes on Chip Component Replacement
FM · Never reuse a disconnected chip component.
Tuning range 87.5 108 MHz
Intermediate frequency 10.7 MHz · Notice that the minus side of a tantalum capacitor may be
Signal-to noise ratio 60 dB (Mono) damaged by heat.
AM (MW)
Tuning range 522 1,611 kHz
Intermediate frequency 450 kHz
Flexible Circuit Board Repairing
· Keep the temperature of soldering iron around 270°C during
Amplifier repairing.
Stereo mode 80 W + 80 W · Do not touch the soldering iron on the same conductor of the
(6 at 1 kHz, THD 10%)
Surround mode Front: 80 W + 80 W
circuit board (within 3 times).
(*Depending on the Centre*: 80 W · Be careful not to apply force on the conductor when soldering
sound mode settings Surround*: 80 W + 80 W or unsoldering.
and the source, there (6 at 1 kHz, THD 10%)
may be no sound Subwoofer*: 150 W
output.) (3 at 50 Hz, THD 10%) UNLEADED SOLDER
Outputs PHONES: (32 , 25 mW) Boards requiring use of unleaded solder are printed with the lead
free mark (LF) indicating the solder contains no lead.
Design and specifications are subject to change without
notice.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
· Abbreviation
CET : East European & Russian model
E3 : 240V AC area in E model : LEAD FREE MARK
E41 : 230V AC area in E model Unleaded solder has the following characteristics.
AUS : Australian model · Unleaded solder melts at a temperature about 40 °C higher than
SP : Singapore model
RU : Russian model 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.
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 PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
2
CX-VX55/VX77
Ver. 1.1
CAUTION TABLE OF CONTENTS
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous 1. GENERAL
radiation exposure. Front Panel Controls ................................................................ 4
Display Window Indicators ..................................................... 5
Remote Control ....................................................................... 6
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK Rear Panel Connections (AEP, UK, CET, RU Model) ............ 7
OR BASE UNIT Rear Panel Connections (E3, E41, AUS, SP Model) ............... 8
The laser diode in the optical pick-up block may suffer electrostatic 2. DISASSEMBLY
breakdown because of the potential difference generated by the 2-1. Top Cover ............................................................................ 9
charged electrostatic load, etc. on clothing and the human body. 2-2. Front Panel Assy ............................................................... 10
During repair, pay attention to electrostatic break-down and also 2-3. DVD Mechanism Deck ..................................................... 10
use the procedure in the printed matter which is included in the 2-4. Rear Panel Section ............................................................ 11
repair parts. 2-5. SMPS Board ...................................................................... 11
The flexible board is easily damaged and should be handled with 2-6. DVD Board ....................................................................... 12
care. 2-7. Main Board ....................................................................... 12
2-8. Base Unit ........................................................................... 13
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on 3. ELECTRICAL TROUBLESHOOTING GUIDE
the disc reflective surface by the objective lens in the optical pick- 3-1. Audio Part .......................................................................... 14
up block. Therefore, when checking the laser diode emission, 3-2. DVD Part ........................................................................... 18
observe from more than 30 cm away from the objective lens. 3-3. Details and Waveforms on System Test and Debugging ... 25
Laser component in this product is capable 4. TEST MODE ..................................................................... 38
of emitting radiation exceeding the limit for
Class 1. 5. ELECTRICAL ADJUSTMENT .................................... 39
This appliance is 6. DIAGRAMS
classified as a CLASS 1 6-1. Block Diagram DVD Section ........................................ 41
LASER product. The 6-2. Block Diagram Audio Section ...................................... 42
label is located on the 6-3. Block Diagram Tuner/Power Section ............................ 43
left side of the unit as 6-4. Printed Wiring Boards DVD Section (1/2) .................... 45
viewed from the front. 6-5. Printed Wiring Board DVD Section (2/2) ..................... 46
6-6. Schematic Diagram DVD Section (1/3) ........................ 47
6-7. Schematic Diagram DVD Section (2/3) ........................ 48
6-8. Schematic Diagram DVD Section (3/3) ........................ 49
6-9. Printed Wiring Board Main Section (1/2) ..................... 50
6-10. Printed Wiring Board Main Section (2/2) ..................... 51
6-11. Schematic Diagram Main Section (1/5) ........................ 52
6-12. Schematic Diagram Main Section (2/5) ........................ 53
6-13. Schematic Diagram Main Section (3/5) ........................ 54
6-14. Schematic Diagram Main Section (4/5) ........................ 55
6-15. Schematic Diagram Main Section (5/5) ........................ 56
6-16. Printed Wiring Board Display Section .......................... 57
6-17. Schematic Diagram Display Section ............................. 58
6-18. Printed Wiring Board Key Section ................................ 59
6-19. Schematic Diagram Key Section ................................... 60
6-20. Printed Wiring Board Power Section ............................ 61
6-21. Schematic Diagram Power Section ............................... 62
7. EXPLODED VIEWS
7-1. Front Panel Section ........................................................... 67
7-2. Boards Section .................................................................. 68
7-3. DVD Mechanism Section .................................................. 69
8. ELECTRICAL PARTS LIST ........................................ 70
3
CX-VX55/VX77
SECTION 1
GENERAL This section is extracted
from instruction manual.
Front Panel Controls
@ / 1 (POWER) indicator STOP (x)
Switches the DVD Receiver ON and OFF. Stops playback of a disc.
STANDBY indicator PAUSE (X)
INTRODUCTION
Lights red when the receiver Pause playback of a disc temporarily.
is in Standby mode (off).
PLAY (N)
Disc Tray To play back a disc.
Insert a disc here.
OPEN/CLOSE ( )
Opens or closes the disc tray.
VOLUME Control
Turn the knob clockwise to increase
sound level, counterclockwise to
decrease sound level.
Display window
Remote Sensor
Point the DVD receiver remote control here.
Reverse SKIP (.)
DVD: Go to beginning of current chapter/track or to previous
chapter/track.
RADIO: To select preset station you want.
Forward SKIP (>)
DVD: Go to NEXT chapter/track.
RADIO: To select preset station you want.
FUNCTION
MIC VOL (MIN/MAX) To select the Receiver's source.
Adjust the microphone volume. (FM, AM, VIDEO, TV or CD/DVD)
MIC1, MIC2 PHONES
To connect microphone. To connect headphones.
7
4
CX-VX55/VX77
Display Window Indicators
Playing status.
Repeat playback mode indicators.
Indicates the unit is radio mode.
Indicates the unit is stereo mode.
Lights up when the DVD Receiver
tunes in a station.
CD disc inserted.
MP3 disc inserted.
VCD2.0 disc inserted.
SLEEP timer indication
DISC TUNED CD MP3 PBC SLEEP
REP 1 AM FM ST MONO
TITLE CHAP TRK BASS DIGITAL PRO LOGIC II
Indicates sound format is
DOLBY PROLOGIC II.
Indicate current
surround format.
Lights up when the unit
is BASS ON mode.
Total playing time/Elapsed time/Frequency/remaining time/ Current status/
Title number/Surround mode/Volume etc. indicators.
Indicates current chapter or
track number.
Title indication
8
5
CX-VX55/VX77
Remote Control
OPEN/CLOSE TV @ / 1
Opens and closes the disc tray. Switches TV ON and OFF.
TV/VIDEO @/1
Selects the TV's source. Switches DVD Receiver ON and OFF.
INTRODUCTION
0-9 numerical buttons DISPLAY
Selects numbered options in a menu. To display remaining time between
Chapter and title.
>10/ TV ENTER 1 2 3
To check the RDS service programme
Used to control TV.
(PS).
Playback Control Buttons 4 5 6 MUTING
H (PLAY) Momentarily silence the speaker of the
Starts playback. 7 8 9 DVD Receiver.
X (PAUSE) -/--
FUNCTION
Pause playback or recording temporarily. 10 10/0
To select the Receiver's source.
(FM, AM, VIDEO, TV or CD/DVD)
x (STOP)
Stops playback. AUTO FORMAT DIRECT
Selects sound mode between A.F.D.
PRESET- PAUSE
AUTO, PRO LOGIC, PLII MOVIE and
Go to beginning of current chapter or
PLII MUSIC.
track or go to previous chapter or track.
Select programme of Tuner. MODE
Selects sound mode between FLAT,
PRESET+ ROCK, POP, JAZZ, CLASSIC,NEWS
Go to next chapter or track. and LINK.
Select programme of Tuner.
BASS
SLOW t/ TUNING-
Switches BASS ON and OFF.
For picture search or slow playback
backward. DVD DISPLAY
To tune in the desired station. Accesses On-Screen display.
SLOW T/TUNING+ VOLUME (+/-)
For picture search or slow playback Adjusts speaker volume.
forward. DVD MENU
To tune in the desired station. Accesses menu on a DVD disc.
DVD TOP MENU RETURN
Displays the disc's Title menu, if available. Returns the setup menu.
B/b/V/v (left/right/up/down) FM MODE
Selects an option in the menu. To change between MONO and
ENTER STEREO modes.
Acknowledges menu selection. AUDIO
Selects an audio language (DVD) or an
TV audio channel (CD).
To control TVs with the Remote. TUNER MENU
REPEAT Memorize a radio station frequency
Repeat chapter, track, title, all into the tuner.
SLEEP Press to clear preset stations from the
To place the unit in the Sleep mode. tuner memory.
PROGRAM SUBTITLE
Enters to the programme edit mode or Selects a subtitle language.
exits from that. TUNER/BAND
DIMMER Selects the DVD Receiver's tuner as the
To change the brightness of the display listening choice. (FM and AM bands)
window. ANGLE
KARAOKE Selects a DVD camera angle if
To display the Karaoke menu available.
audio channel. TV VOL +/
CLEAR Adjusts TV's volume.
Removes a track number on the program TV CH +/
menu.
Selects TV's channel.
DVD SETUP
Accesses or removes DVD setup menu.
9
6
CX-VX55/VX77
AEP, UK, CET, RU MODEL
Rear Panel Connections
AC Power Cord
Plug into the power source.
EURO AV OUTPUT (TO TV)
Connect to your TV set.
MONITOR OUT (VIDEO)
Connect to a TV with video input.
VIDEO (AUDIO IN R/L)
Connect the audio output of an external
source (VCR, LD player, etc).
AM LOOP ANTENNA CONNECTORS
Connect the AM Loop antenna to this terminal.
FM ANTENNA CONNECTOR
Connect the FM antenna to this terminal.
SPEAKER CONNECTORS
Connect the six supplied speakers
to these terminals.
Do not touch the inner pins of the jacks on the rear
panel. Electrostatic discharge may cause permanent
damage to the unit.
Remote Control Operation Range Remote control battery installation
Point the remote control at the remote sensor and press Detach the battery cover on the rear of
the buttons. the remote control, and insert two R03
Distance: About 6m (20ft) from the front of the (size AAA) batteries with and
remote sensor aligned correctly.
Angle: About 30 in each direction of the front of the When using the remote control, point it
remote sensor at the remote sensor on the unit.
Do not mix old and new batteries.
10
7
CX-VX55/VX77
E3, E41, AUS, SP MODEL
Rear Panel Connections
AC Power Cord
Plug into the power source.
SPEAKER CONNECTORS
Connect the six supplied MONITOR OUT (VIDEO)
speakers to these terminals. Connect to a TV with video input.
VIDEO (AUDIO IN L/R)
Connect the audio output of an external
source (VCR, LD player, etc).
MONITOR S VIDEO OUT (DVD OUT)
Connect to a S Video Input on TV.
FOR DVD VIEWING ONLY.
COMPONENT VIDEO OUT (Y PB/CB PR/CR)
Connect to a TV with Y PB/CB PR/CR inputs.
FOR DVD VIEWING ONLY.
AM LOOP ANTENNA CONNECTORS
Connect the AM Loop antenna to this terminal.
FM ANTENNA CONNECTORS
Connect the FM antenna to this terminal.
Do not touch the inner pins of the jacks on the rear
panel. Electrostatic discharge may cause permanent
damage to the unit.
Remote Control Operation Range Remote control battery installation
Point the remote control at the remote sensor and press Detach the battery cover on the rear of
the buttons. the remote control, and insert two R03
Distance: About 6m (20ft) from the front of the (size AAA) batteries with and
remote sensor aligned correctly.
Angle: About 30 in each direction of the front of the When using the remote control, point it
remote sensor at the remote sensor on the unit.
Do not mix old and new batteries.
10
8
CX-VX55/VX77
SECTION 2 Ver. 1.1
DISASSEMBLY
Note : This set can be disassemble according to the following sequence.
SET
2-1. TOP COVER
(Page 9)
2-2. FRONT PANEL ASSY 2-4. REAR PANEL SECTION
(Page 10) (Page 11)
2-3. DVD MECHANISM DECK 2-5. SMPS BOARD
(Page 10) (Page 11)
2-8. BASE UNIT 2-6. DVD BOARD
(Page 13) (Page 12)
2-7. MAIN BOARD
(Page 12)
Note : Follow the disassembly procedure in the numerical order given.
2-1. TOP COVER
4 top cover
2 two screws 3 two screws
1 two screws
9
CX-VX55/VX77
Ver. 1.1
2-2. FRONT PANEL ASSY
1 two screws
2 shield (barrier)
3 PN202 (5P)
6 Remove the ferrite core
attached to the power cord.
8 claw
qa claw
4 PN101 (23 core)
7 claw
5 PN102 (24 core)
qs three claws 9 claw
0 two claws
qd front panel assy
2-3. DVD MECHANISM DECK
3 two screws
1 PDM01 (23 core)
5 DVD mechanism deck
2 PDM02 (11 core)
4
10
CX-VX55/VX77
Ver. 1.1
2-4. REAR PANEL SECTION
4 screw
5 two screws
6 two screws
3 PN103 (12 core)
7 three screws
8 screw
9 rear panel section
1 Pull up the two claws
pressing the power cord.
2 PN901 (2P)
2-5. SMPS BOARD
3 two screws
2 two screws
4 DVD board
PDA02
1 CN903 (10P) PDA03
11
CX-VX55/VX77
Ver. 1.1
2-6. DVD BOARD 2 two screws
1 two screws
CN902
CN901
3 SMPS board
2-7. MAIN BOARD
2 screw
1 two screws
3 screw
(+BVTP 3 × 10)
4 MAIN board
12
CX-VX55/VX77
Ver. 1.1
2-8. BASE UNIT
1 two drawing screws
2 holder assy
8 two rubbers
6 two drawing screws
7 two drawing screws
9 two rubbers 0 base unit
5 tray assy
4
3 guide
13
CX-VX55/VX77
Ver. 1.1 SECTION 3
ELECTRICAL TROUBLESHOOTING GUIDE
3-1. AUDIO PART
1. Power check flow
INSERT
POWER CORD.
TURN ON NO CHECK POWER PLUG
THE RED LED? AND POWER SUPPLY CIRCUIT
.
YES
TURN POWER ON.
NO
IS POWER ON? CHECK POWER SUPPLY CIRCUIT
.
YES
DOES INITIAL NO
CHECK LASER CIRCUIT.
READ WORK?
YES
CHECK FOCUS CIRCUIT.
CHECK DISC.
NO CHECK TRACKING SERVO CIRCUIT.
DOES IT PLAY?
YES
DOES IT OUTPUT
NO CHECK AUDIO CIRCUIT.
AUDIO?
YES
OK
14
CX-VX55/VX77
Ver. 1.1
2. AUDIO µ.COM CIRCUIT
POWER ON
Does CD/DVD Does other function
name appear at FLD? OK.
appear at FLD?
Does LOADING Does it appear
appear at FLD? DVD Error at
FLD?
Check
Does no Disc or Connector(PN902)if
Time appear at FLD? Reconnect it.
is normally.
Check if DVD an Audio
Micom Interface is OK. Check power part Refer to SMPS.
of Main B/D.
Check power. Check oscillator Refer to oscillator
of X101. Circuit.
Check DVD Module.
Check if IC101
PIN1 is High. Check DVD Reset Waveform.
Check SMPS.
Check if IC101 Check IC101 Reset Waveform.
PIN11 is High.
Check if IC101 PIN
17, 46, 72, 90 is high Check 5V line.
(5V).
Check if IC101 Check Power dection Circuit.
PIN26 is High.
Replace IC101.
15
CX-VX55/VX77
Ver. 1.1
3. FRONT CIRCUIT (1/2)
16
CX-VX55/VX77
Ver. 1.1
4. FRONT CIRCUIT (2/2)
17
CX-VX55/VX77
Ver. 1.1
3-2. DVD PART
1. Power check flow
Does other function
name appear at FLD?
PDM02
PDM01
PDA02
PDA03
PDA01
18
CX-VX55/VX77
Ver. 1.1
2. Test & debug flow
19
CX-VX55/VX77
Ver. 1.1
20
CX-VX55/VX77
Ver. 1.1
21
CX-VX55/VX77
Ver. 1.1
22
CX-VX55/VX77
Ver. 1.1
23
CX-VX55/VX77
Ver. 1.1
24
CX-VX55/VX77
Ver. 1.1
3-3. DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING
1. SYSTEM 27MHz CLOCK, RESET, FLASH R/W SIGNAL
1) MT1379 main clock is at 27MHz (X501)
2) MT1336 reset is high active
25
CX-VX55/VX77
Ver. 1.1
3) RS232 waveform during procedure (Downloading)
4) Flash R/W enable signal during download (Downloading)
26
CX-VX55/VX77
Ver. 1.1
2. SDRAM CLOCK
1) MT1379 main clock is at 27MHz (X501)
3. TRAY OPEN/CLOSE SIGNAL
1) Tray open/close waveform
27
CX-VX55/VX77
Ver. 1.1
2) Tray close waveform
3) Tray open waveform
28
CX-VX55/VX77
Ver. 1.1
4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION)
5. LENS CONTROL RELATED SIGNAL (NO DISC CONDITION)
29
CX-VX55/VX77
Ver. 1.1
6. LASER POWER CONTROL RELATED SIGNAL (NO DISC CONDITION)
7. DISC TYPE JUDGEMENT WAVEFORM
30
CX-VX55/VX77
Ver. 1.1
31
CX-VX55/VX77
Ver. 1.1
8. FOCUS ON WAVEFORM
32
CX-VX55/VX77
Ver. 1.1
9. SPINDLE CONTROL WAVEFORM (NO DISC CONDITION)
33
CX-VX55/VX77
Ver. 1.1
10. TRACKING CONTROL RELATED SIGNAL (SYSTEM CHECKING)
34
CX-VX55/VX77
Ver. 1.1
11. RF WAVEFORM
12. MT1379 AUDIO OPTICAL AND COAXIAL OUTPUT (ASPDIF)
35
CX-VX55/VX77
Ver. 1.1
13. MT1379 VIDEO OUTPUT WAVEFORM
1) Full colorbar signal (CVBS)
2) Y
36
CX-VX55/VX77
Ver. 1.1
3) C
14. AUDIO OUTPUT FORM AUDIO DAC
1) Audio related Signal
37
CX-VX55/VX77
Ver. 1.1 SECTION 4
TEST MODE
DVD Processor Reset Procedure:
1. Press the DVD SETUP key on the remote commander to
enter the set up screen. The following SET UP menu is dis-
played.
2. Move the cursor to [TV Aspect,16:9 Wide] on the screen.
3. Press the following keys in the order of 1 t 3 t 9 t 7
t 1 t 3 t 9 t ENTER on the remote commander.
4. The following menu is displayed and the DVD Processor is
reset to the default set up when the product is shipped from
the factory.
5. Press any key on the remote commander to exit this mode.
The DVD Processor reset procedure is completed.
38
CX-VX55/VX77
SECTION 5 Ver. 1.1
ELECTRICAL ADJUSTMENT
[RFMON Level Check]
Connection:
oscilloscope
DVD board
PDM01 pin 2(RFOUT) +
PDM01 pin 6(GND PD)
Procedure:
1. Connect an oscilloscope to PDM01 pin 2 (RFOUT) and
PDM01 pin 6 (GND PD) on the DVD board.
2. Turn the power on.
3. Set the test disc (DVD: TDV-520CSO, CD: LUV-P01) on the
tray and touch the B button to playback.
4. Confirm that oscilloscope waveform is clear and check RFOUT
signal level is correct or not.
Note: A clear RFOUT signal waveform means that the shape "" can be
clearly distinguished at the center of the waveform.
RFOUT signal waveform
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level: 1.09 ± 0.2 Vp-p (DVD)
1.05 ± 0.2 Vp-p (CD)
Checking Location: DVD board (COMPONENT SIDE)
[DVD BOARD](COMPONENT SIDE)
PDM01 pin 6(GND PD)
PDM01 pin 2(RFOUT)
IC202
IC201
2 22
10
2
11
1
1 23
PDM01
IC505
IC501
IC5A1
IC5C1
IC506
39
CX-VX55/VX77
Ver. 1.1
MEMO
40
CX-VX55/VX77
SECTION 6 Ver. 1.1
DIAGRAMS
6-1. BLOCK DIAGRAM -- DVD SECTION --
IC201
OPTICAL CD/DVD RF AMP, Q501
PICK-UP SERVO CONTROL
BLOCK
RF OUT 96 DVDRFIP IC501
MPEG & VIDEO PROCESS
104 MD
IC5C1
101 MA RFOP 6 216 RFIP DVD VIDEO E3,E41,AUS,SP MODEL
VCC AVCC+5V 102 MB RFON 7 215 RFIN DRIVE JK601 (1/2)
103 MC FEO 18 205 FEI
PR(R)
LVL 19 206 RFLEVEL YUV6/R 173 14 CR 16 PR/CR
A 98 DVDC
CSO 20 204 CSO PB(B) COMPONENT
B 99 DVDB YUV5/B 172 12 CB 18 PB/CB
TEO 21 203 TEI VIDEO OUT
C 100 DVDA Y(G)
YUV4/G 170 10 CY 20 Y
D 97 DVDD DEFECT 23 198 BDO
MONITOR OUT
E 116 TNI HTRC 30 209 HRFZC CVB 23 VIDEO
HRFRP RFRPDC Q606
F 115 TPI 25 207
Q204 208 RFRPAC Y
YUV2/Y 166 6 Y 21 S VIDEO MONITOR
LD SCLK 56 197 SCLK C
LD DVD 126 LD02 YUV1/C 164 2 C 26 (DVD ONLY) OUT
DRIVE Q205 SDEN 58 196 SDEN
LD SDATA 59 195 SDATA
LD CD 125 LD01
DRIVE
124 MDI2 RST 60 188 PRST
JK602 (1/2)
MD CD 123 MDI1 DPDMUTE 61 16 PWMOUT2
MONITOR OUT
VREF 17 V2O TR IN (CLOSE)
IO5 47 Q607 G
Q202 50 IO8 TR OUT EURO AV
IO6 48 SW2 (OPEN/CLOSE) B
VR VDD 53 IOB (OPEN)
Q203 72 REFCOS OUTPUT(TO TV)
R
LIMIT
VR CD 71 HALLCOS IO7 49 SW1 (LIMIT)
Q201 Q602
70 COSPHI RGB R/G/B SELECT
UP3-1 69 98 DVD SO R/G/B VIDEO 79
V2REFO
SW PDIC 52 IOA SELECT
VREFO
UP1-5 64 99 DVD SI Q601,603-605
IC202 UP1-2 61 TV MODE 78 SCART SCART CONTROL
MOTOR/COIL DRIVER 15 16 100 DVD CK
UP3-0 68 16:9/4:3 77 CONTROL
210 PWMVREF YUV7 177 3 DVD CS DVD RESET 1
MUTE 34 211 PWM2VREF
REV 2 200 ADIN AEP,UK,CET,RU MODEL
IC101 (1/3)
FWD 1