Sony HCD-FX900W User manual

SERVICE MANUAL
Sony Corporation
Home Audio Division
Published by SonyTechno Create Corporation
US Model
Canadian Model
SUPER AUDIO CD/DVD RECEIVER
9-887-193-02
2006I16-1
© 2006.09
Ver. 1.1 2006.09
HCD-FX900W
HCD-FX900W is the amplifier, DVD/CD
and tuner section in DAV-FX900W.
— Continued on next page —
SPECIFICATIONS
Model Name Using Similar Mechanism HCD-FX10
Mechanism Type CDM69EH-DVBU101
Optical Pick-up Name KHM-310CAB/C2NP
This system incorporates with Dolby* Digital and Dolby Pro
Logic (II) adaptive matrix surround decoder and the DTS**
Digital Surround System.
*Manufactured under license from Dolby Laboratories.
“Dolby,” “Pro Logic,” and the double-D symbol are trademarks
of Dolby Laboratories.
** Manufactured under license from Digital Theater Systems, Inc.
“DTS” and “DTS Digital Surround” are trademarks of Digital
Theater Systems, Inc.
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND
TOTAL HARMONIC
DISTORTION
(FTC Output Power): FL/FR/SL/SR: 84 W/ch
3 ohms at 160 - 20,000 Hz,
0.7 % THD
SW: 162 W 1.5 ohms at 25
- 160 Hz, 0.7 % THD
C: 84W 3 ohms at 500 -
20,000 Hz, 0.7% THD
Amplifier section
Surround mode (reference) RMS output power, 10 %
THD
Front: 143 W + 143 W
(with SS-TS55)
Center*: 143 W
(with SS-CT52)
Surround*: 143 W + 143
W** (3 ohms)
Subwoofer*: 285 W
(with SS-WS53)
*Depending on the sound field settings and the source,
there may be no sound output.
** When connecting the surround speakers to the system
by the speaker cords.
Inputs (Analog)
TV/VCR 1, TV/VCR 2 (AUDIO IN)
Sensitivity: 450/250 mV
AUDIO IN Sensitivity: 250/125 mV
Inputs (Digital)
TV/VCR1 (COAXIAL IN)/TV/VCR2 (OPTICAL IN)
impedance: 75 ohms/–
Outputs (Analog)
Phones Accepts low-and high-
impedance headphones.
Super Audio CD/DVD system
Laser Semiconductor laser
(Super Audio CD/DVD:
λ= 650 nm)
(CD: λ= 790 nm)
Emission duration:
continuous
Signal format system NTSC
Tuner section
System PLL quartz-locked digital
synthesizer system
FM tuner section
Tuning range 87.5 – 108.0 MHz
(100 kHz step)
Antenna (aerial) FM wire antenna (aerial)
Antenna (aerial) terminals 75 ohms, unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range 530 – 1,710 kHz (with the
interval set at 10 kHz)
531 – 1,710 kHz (with the
interval set at 9 kHz)
Antenna (aerial) AM loop antenna (aerial)
Intermediate frequency 450 kHz
Video section
Outputs VIDEO: 1 Vp-p 75 ohms
S VIDEO:
Y: 1 Vp-p 75 ohms
C: 0.286 Vp-p 75 ohms
COMPONENT:
Y: 1 Vp-p 75 ohms
PB/CB, PR/CR: 0.7 Vp-p
75 ohms
HDMI OUT: Type A (19
pin)
Inputs TV/VCR1: 1 Vp-p
75 ohms
TV/VCR2: 1 Vp-p
75 ohms
COMPONENT:
Y: 1 Vp-p 75 ohms
PB/CB, PR/CR: 0.7 Vp-p
75 ohms

2
HCD-FX900W
CAUTION
Use of controls or adjustments or performance of procedures
otherthan thosespecifiedherein mayresult inhazardous radiation
exposure.
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
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.
Notes on chip component replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 °C
during repairing.
•Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering
or unsoldering.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metaltrim, “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. Acommercial leakage tester, suchas the Simpson229 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 orbattery-operatedACvoltmeter.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 passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC 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
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR 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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
General
Power requirements 120 V AC, 60 Hz
Power consumption On: 170 W
Standby: 0.3 W (at the
Power Saving mode)
Dimensions (approx.) 445 × 71×400 mm
(17
5
/ 8 ×2
7
/ 8 ×15
3
/ 4
inches) (w/h/d) incl.
projecting parts
Mass (approx.) 6.0 kg (13 lb 4 oz)
Design and specifications are subject to change
without notice.

3
HCD-FX900W
TABLE OF CONTENTS
1. SERVICING NOTE ................................................... 4
2. GENERAL ................................................................... 12
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 15
3-2. Top Panel, Side Panel ...................................................... 16
3-3. JACK Board, Front Panel Section ................................... 17
3-4. KEY Board, FL Board..................................................... 18
3-5. Button (Disc/Play/Power)................................................ 19
3-6. I/O Board, D.C. Fan ........................................................ 19
3-7. DIAT TX XM Board ....................................................... 20
3-8. DMB12 Board ................................................................. 20
3-9. MAIN Board.................................................................... 21
3-10. SP Board.......................................................................... 22
3-11. POWER Board ................................................................ 22
3-12. DVD Mechanism Deck (CDM69EH-DVBU101)........... 23
3-13. Base Unit (DVBU101) .................................................... 23
3-14. Optical Pick-up (KHM-310CAB) ................................... 24
3-15. SW Board, Bracket (Top) Assy ....................................... 24
3-16. RELAY Board ................................................................. 25
3-17. Motor (Stocker)Assy (Stocker)(M761) .......................... 25
3-18. Motor (Roller) Assy (Roller)(M781)............................... 26
3-19. Motor (Mode) Assy (Mode)(M771) ................................ 26
3-20. Rubber Roller (Slider)Assy ............................................ 27
3-21. Timing Belt (Front/Rear)................................................. 27
3-22. Cam (Gear) ...................................................................... 28
3-23. SENSOR Board ............................................................... 28
4. ASSEMBLY
4-1. How To Install The Cam (Eject Lock) ............................ 29
4-2. How To Install The Cam (Gear) ...................................... 29
4-3. How To Install The Gear (Mode C)................................. 30
4-4. How To Install The Gear (Mode Cam)............................ 30
4-5. How To Install The Rotary Encorder (S702),
Gear (Stocker Communication)....................................... 31
4-6. How To Install The StockerAssy .................................... 31
5. TEST MODE ............................................................... 32
6. ELECTRICAL ADJUSTMENT ............................. 36
7. DIAGRAMS
7-1. Block Diagram – RF Section –....................................... 38
7-2. Block Diagram – VIDEO Section – ............................... 39
7-3. Block Diagram – AMP Section – ................................... 40
7-4. Block Diagram – AUDIO Section – ............................... 41
7-5. Block Diagram – POWER Section –.............................. 42
7-6. Block Diagram – DIAT Section – .................................. 43
7-7. Printed Wiring Boards – CHANGER Section –.............. 44
7-8. Schematic Diagram – CHANGER Section – ............. 45
7-9. Printed Wiring Board – DMB12 Section (Side A) – ...... 46
7-10. Printed Wiring Board – DMB12 Section (Side B) – ...... 47
7-11. Schematic Diagram – DMB12 Section (1/7) – .............. 48
7-12. Schematic Diagram – DMB12 Section (2/7) – .............. 49
7-13. Schematic Diagram – DMB12 Section (3/7) – .............. 50
7-14. Schematic Diagram – DMB12 Section (4/7) – .............. 51
7-15. Schematic Diagram – DMB12 Section (5/7) – .............. 52
7-16. Schematic Diagram – DMB12 Section (6/7) – .............. 53
7-17. Schematic Diagram – DMB12 Section (7/7) – .............. 54
7-18. Printed Wiring Board – MAIN Section (Side A) – ........ 55
7-19. Printed Wiring Board – MAIN Section (Side B) – ........ 56
7-20. Schematic Diagram – MAIN Section (1/8) – ................. 57
7-21. Schematic Diagram – MAIN Section (2/8) – ................. 58
7-22. Schematic Diagram – MAIN Section (3/8) – ................. 59
7-23. Schematic Diagram – MAIN Section (4/8) – ................. 60
7-24. Schematic Diagram – MAIN Section (5/8) – ................. 61
7-25. Schematic Diagram – MAIN Section (6/8) – ................. 62
7-26. Schematic Diagram – MAIN Section (7/8) – ................. 63
7-27. Schematic Diagram – MAIN Section (8/8) – ................. 64
7-28. Printed Wiring Boards – FL/KEY Section – ................... 65
7-29. Schematic Diagram – FL/KEY Section – ...................... 66
7-30. Printed Wiring Boards – JACK/SP Section – .................. 67
7-31. Schematic Diagram – JACK/SP Section – ..................... 68
7-32. Printed Wiring Board – I/O Section (SideA) – ............... 69
7-33. Printed Wiring Board – I/O Section (Side B) –............... 70
7-34. Schematic Diagram – I/O Section – ............................... 71
7-35. Printed Wiring Board – POWER Section –.................... 72
7-36. Schematic Diagram – POWER Section – ...................... 73
7-37. Printed Wiring Board – DIAT TX XM Section –........... 74
7-38. Schematic Diagram – DIAT TX XM Section (1/2) –..... 75
7-39. Schematic Diagram – DIAT TX XM Section (2/2) –..... 76
8. EXPLODEDVIEWS
8-1. Overall Assy .................................................................... 92
8-2. Front Panel Assy.............................................................. 93
8-3. Chassis Section-1 ............................................................ 94
8-4. Chassis Section-2 ............................................................ 95
8-5. DVD Mechanism Deck Section-1
(CDM69EH-DVBU101) ................................................. 96
8-6. DVD Mechanism Deck Section-2
(CDM69EH-DVBU101) ................................................. 97
8-7. DVD Mechanism Deck Section-3
(CDM69EH-DVBU101) ................................................. 98
8-8. DVD Mechanism Deck Section-4
(CDM69EH-DVBU101) ................................................. 99
8-9. DVD Mechanism Deck Section-5
(CDM69EH-DVBU101) ................................................100
8-10. DVD Mechanism Deck Section-6
(CDM69EH-DVBU101) ................................................101
8-11. Optical Pick-up Section (KHM-310CAB/C2RP)...........102
9. ELECTRICAL PARTS LIST ................................. 103

4
HCD-FX900W SECTION 1
SERVICING NOTE
NOTES ON HANDLINGTHE 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.
DISC SLOT LOCK
The disc slot lock function for the antitheft of an demonstration
disc in the store is equipped.
Setting Procedure :
1. Press the ?/1 button to turn the set on.
2. Press the [FUNCTION] button to set DVD function.
3. Insert a disc.
4. Press the x stick and the A button simultaneously for five
seconds.
5. The message “LOCKED” is displayed and the slot is locked.
Releasing Procedure :
1. Press the x stick and the A button simultaneously for five
seconds again.
2. The message “UNLOCKED” is displayed and the slot is
unlocked.
Note: When “LOCKED” is displayed, the slot lock is not released by
turning power on/off with the ?/1 button.
Note on DMB12 board replacement
New part of EEP ROM (IC103, IC706) on the DMB12 board cannot
be used. Therefore, if the mounted DMB12 board (A-1154-509-A)
is replaced, exchange new EEP ROM (IC103,IC706) with that used
before the replacement.
When the self-diagnosis function is activated to
prevent the system from malfunctioning, a 5-
character service number (e.g., C 13 50) with a
combination of a letter and 4 digits appears on
the screen and the front panel display. In this
case, check the following table.
When displaying the version
number on the screen
When you turn on the system, the version
number [VER.X.XX] (X is a number) may
appear on the screen. Although this is not a
malfunction and for Sony service use only,
normal system operation will not be possible.
Turn off the system, and then turn on the system
again to operate.
Self-diagnosis Function
(When letters/numbers appear in the
display)
First 3
characters of
the service
number
Cause and/or corrective action
C 13 The disc is dirty.
,Clean the disc with a soft cloth
C 31 The disc is not inserted correctly.
,Restartthesystem,thenre-insert
the disc correctly.
E XX
(xx is a number) To prevent a malfunction, the
system has performed the self-
diagnosis function.
,Contact your nearest Sony
dealer or local authorized Sony
service facility and give the 5-
character service number.
Example: E 61 10
C:13:50
VER.X.XX
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

5
HCD-FX900W
CN3002
MAIN BOARD
POWER BOARD
CN902
RED
BLACK
C903
C939
C933 C932
Discharge the charged electricity in capacitors to prevent electric shock as follows
When disassembling the machine, be sure to discharge the charged electricity in the following capacitors.
Use a resistor of 800 ohms, 2 Watts for discharging the following capacitors.
POWER board
C903 : 600V
C932, C933, C939, CN902 : 30V
MAIN board
CN3002 : 30 V
* Connect the specified resistor
between black and red leads

6
HCD-FX900W
Fix the capacitors with adhesive agent as follows
Fixing the capacitors with adhesive agent is required by the safety regulation.
Be sure to fix the capacitors with adhesive agent when part or circuit board is replaced.
POWER BOARD
PRECAUTION WHEN INSTALLING A NEW OP UNIT /
PRECAUTION BEFORE UNSOLDERINGTHE STATIC ELECTRICITY
PREVENTION SOLDER BRIDGE
When installing a new OP unit, be sure to connect the flexible printed circuit board first of all before removing the static
electricity prevention solder bridge by unsoldering. Remove the static electricity prevention solder bridge by unsoldering
after the flexible printed circuit board has already been connected.
(Do not remove nor unsolder the solder bridge as long as the OP unit is kept standalone.)

7
HCD-FX900W
BUTTON (POWER)
BUTTON (STOP)
BUTTON (STOP)
BUTTON (POWER)
Precaution when replacing the BUTTON
Please apply the adhesive agent to the BUTTON BASE (PLAY) when replacing the BUTTON (PLAY) or BUTTON (POWER)
or BUTTON (STOP).
Please apply the adhesive agent to the BUTTON BASE (POWER) when replacing the BUTTON (DISC) or BUTTON (POWER)
or BUTTON (STOP).
BUTTON (POWER)
BASE
BUTTON (PLAY)
BASE
BUTTON (PLAY)
BUTTON (DISC)

8
HCD-FX900W
MAIN board
(side A)
DMB12 board, HDMI bracketinsulating sheet
MAIN board
(side A)
DMB12 board, HDMI bracket
•MAIN board service position (side A)

9
HCD-FX900W
CN201
CN102
CN1801
CN701
CN504 CN501
CN621
CN651
CN672
CN4301
CN4501
CN109
I/O BOARD
DIAT TX XM
BOARD
DMB12
BOARD
(from the FL board)
MAIN
BOARD
(side A)
To check the side B of
the MAIN board, remove the
DMB12 board, I/O board,
and the MAIN board.
It became a resolution with
MAIN board.
In such a case, the
extension cables
became necessary.
I/O board
insulating
sheet
DIAT TX XM board
DVD
Mechanism deck
front panel section
MAIN board (side B) DMB12 board, HDMI bracket
Extension cable :
J-2501-102-A
(1mm / 13pin / L300)
Extension cable :
J-2501-242-A
(1mm / 11pin / L300)
Extension cable :
J-2501-242-A
(1mm / 11pin / L300)
Extension cable :
J-2501-248-A
(1mm / 27pin / L300)
Extension cable :
J-2501-245-A
(1mm / 23pin / L300)
Extension cable :
J-2501-242-A
(1mm / 11pin / L300)
•MAIN board service position (side B)

10
HCD-FX900W
•DMB12 board service position
DMB12 boardinsulating sheet
DMB12 board