HCD-FX900W - Sony Audio Service Manual (repair manual)

hcd-fx900w service manual
Model
HCD-FX900W
Pages
125
Size
20.56 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-fx900w.pdf
Date

Read Sony HCD-FX900W Service Manual online

SERVICE MANUAL
Sony Corporation
Home Audio Division
Published by Sony Techno Create Corporation
US Model
Canadian Model
SUPER AUDIO CD/DVD RECEIVER
9-887-193-04
2007F16-1
© 2007.06
Ver. 1.3  2007.06
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
P
B
/C
B
, P
R
/C
R
: 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
P
B
/C
B
, P
R
/C
R
: 0.7 Vp-p 
75 ohms
2
HCD-FX900W
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous 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, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE  TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, 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 2 V AC range are suitable.  (See
Fig. A)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
0.15 
µ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
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.
ATTENTION  AU  COMPOSANT  AYANT  RAPPORT
À  LA  SÉCURITÉ!
LES  COMPOSANTS  IDENTIFIÉS  PAR  UNE  MARQUE  
0
 SUR
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 Stocker Assy .................................... 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 (Side A) – ............... 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.
EXPLODED VIEWS
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 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.
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  
 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  
 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.
,Restart the system, then re-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.
Page of 125
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