DOWNLOAD Sony STR-DA4ES / STR-DA7ES / STR-VA333ES Service Manual ↓ Size: 14.71 MB | Pages: 114 in PDF or view online for FREE

Model
STR-DA4ES STR-DA7ES STR-VA333ES
Pages
114
Size
14.71 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
str-da4es-str-da7es-str-va333es.pdf
Date

Sony STR-DA4ES / STR-DA7ES / STR-VA333ES Service Manual ▷ View online

5
STR-DA4ES/DA7ES/VA333ES
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 IDENTIFÉS PAR UNE MARQUE 
0
 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
MODEL IDENTIFICATION
– BACK PANEL –
MODEL
PARTS No.
DA7ES: US model
4-240-816-0s
DA7ES: CND model
4-240-816-1s
DA4ES: US model
4-240-816-2s
DA4ES: CND model
VA333ES: AEP model
4-240-816-4s
VA333ES: KR model
4-240-816-5s
VA333ES: TW model
4-240-816-6s
PART NO.
• Abbreviation
CND : Canadian model
KR
: Korea model
TW
: Taiwan model
AREA CODE
Fig. 1
4-240-816-3s
About area codes
The area code of the receiver you purchased is
shown on the lower portion of the rear panel (see
the illustration below).
Any differences in operation, according to the
area code, are clearly indicated in the text, for
example, “Models of area code AA only”.
Area code
4-XXX-XXX-XX AA
AC  OUTLET
L
R
+
SURROUND
SURR
BACK
   R
CENTER
SURR BACK
L
R
SURROUND
CENTER
SURR BACK
SURR
BACK
   L
SPEAKERS
IMPEDANCE SELECTOR
4 8 
GENERAL
Power requirements
Area code
Power requirements
CEL
230 V AC, 50/60 Hz
TW
110 V AC, 60 Hz
KR
220 V AC, 60 Hz
Power consumption
Area code
Power consumption
CEL, KR
390 W
TW
400 W (max. 1,000 W)
Power consumption (during standby mode)
1 W
AC outlets
Area code
AC outlets
CEL
1 switched, 100 W
TW
2 switched, 100 W
Dimensions
430 
× 175 × 465 mm
including projecting parts
and controls
Mass (Approx.)
21.0 kg
Supplied accessories
FM wire antenna (1)
AM loop antenna (1)
Remote commander RM-LP211 (1)
LR6 (size-AA) batteries (3)
Design and specifications are subject to change
without notice.
6
STR-DA4ES/DA7ES/VA333ES
    After correcting the original service problem, perform the fol-
lowing safety checks 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
    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 microampers).
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 pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
SAFETY  CHECK-OUT
(US model only)
To Exposed Metal 
Parts on Set
0.15 
µ
F
1.5 k
AC
Voltmeter
(0.75 V)
Earth Ground
Fig. A.  Using an AC voltmeter to check AC leakage.
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.
EXTENSION CABLE AND SERVICE POSITION
When repairing or serving this set, connect the jig (extension cable)
as shown below.
• Connect the Digital board (CN2102) and the E-Vol board
(CNP402) with the extension cable (Part No. J-2501-049-A).
DIGITAL board
CNP402
CN2102
E-VOL board
J-2501-049-A
7
STR-DA4ES/DA7ES/VA333ES
TABLE OF CONTENTS
1. SERVICE NOTE
································································ 8
2. GENERAL
··········································································· 9
3. TEST MODE
····································································· 11
4. DISASSEMBLY
4-1.
Case .................................................................................. 12
4-2.
Panel Assy ........................................................................ 13
4-3.
Bracket .............................................................................. 13
4-4.
Back Panel Section ........................................................... 14
4-5.
Digital Board .................................................................... 14
4-6.
Input Board, E-vol Board ................................................. 15
4-7.
A-class Board, Amp Board ............................................... 15
4-8.
Ac Board, Cis Power Board ............................................. 16
4-9.
Dc Board ........................................................................... 16
5. ELECTRICAL ADJUSTMENTS
································· 17
6. DIAGRAMS
6-1.
IC Pin Function ................................................................ 18
6-2.
Block Diagram –Audio Section– ..................................... 22
6-3.
Block Diagram –Video Section– ...................................... 23
6-4.
Block Diagram –Digital Section (1/2)– ............................ 24
6-5.
Block Diagram –Digital Section (2/2)– ............................ 25
6-6.
Block Diagram –Power Amp Section– ............................. 26
6-7.
Circuit Boards Location ................................................... 27
6-8.
Schematic Diagram –Digital Section (1/7)– .................... 29
6-9.
Schematic Diagram –Digital Section (2/7)– .................... 30
6-10. Schematic Diagram –Digital Section (3/7)– .................... 31
6-11. Schematic Diagram –Digital Section (4/7)– .................... 32
6-12. Schematic Diagram –Digital Section (5/7)– .................... 33
6-13. Schematic Diagram –Digital Section (6/7)– .................... 34
6-14. Schematic Diagram –Digital Section (7/7)– .................... 35
6-15. Printed Wiring Board –Digital Section– .......................... 36
6-16. Printed Wiring Board –Input Section– ............................. 38
6-17. Schematic Diagram –Input Section– ................................ 40
6-18. Printed Wiring Boards –S-Video Section– ....................... 41
6-19. Schematic Diagram –S-Video Section (1/2)– .................. 42
6-20. Schematic Diagram –S-Video Section (2/2)– .................. 43
6-21. Printed Wiring Boards –C-Video Section– ...................... 44
6-22. Schematic Diagram –C-Video Section– ........................... 45
6-23. Printed Wiring Boards –E-Vol Section– ........................... 46
6-24. Schematic Diagram –E-Vol Section (1/2)– ...................... 48
6-25. Schematic Diagram –E-Vol Section (2/2)– ...................... 49
6-26. Printed Wiring Board –A-Class Section– ......................... 50
6-27. Schematic Diagram –A-Class Section– ........................... 51
6-28. Printed Wiring Board –CIS Section– ............................... 52
6-29. Schematic Diagram –CIS Section– .................................. 53
6-30. Printed Wiring Board –Up Convert Section– ................... 54
6-31. Schematic Diagram –Up Convert Section– ...................... 55
6-32. Printed Wiring Board –Amp Section– .............................. 56
6-33. Schematic Diagram –Amp Section– ................................ 57
6-34. Printed Wiring Boards –Display Section– ........................ 58
6-35. Schematic Diagram –Display Section– ............................ 59
6-36. Printed Wiring Board –Digital input Section– ................. 60
6-37. Schematic Diagram –Digital input Section– .................... 61
6-38. Printed Wiring Boards –Speaker Section– ....................... 62
6-39. Schematic Diagram –Speaker Section– ........................... 63
6-40. Printed Wiring Boards –Power Section– .......................... 64
6-41. Schematic Diagram –Power Section– .............................. 65
6-42. IC Block Diagrams ........................................................... 66
7. EXPLODED VIEWS
7-1.
Case Section ..................................................................... 72
7-2.
Front Panel Section (1) ..................................................... 73
7-3.
Front Panel Section (2) ..................................................... 74
7-4.
Rear Section ..................................................................... 75
7-5.
Chassis Section (1) ........................................................... 76
7-6.
Chassis Section (2) ........................................................... 77
8. ELECTRICAL PARTS LIST
········································ 78
8
STR-DA4ES/DA7ES/VA333ES
Track No.
1
2
3
4
5
SECTION 1
SERVICE NOTE
DTS Decode Test
• Required Instrument
CD player (equipped with optical digital output)
Optical cable
DTS test CD (J-2501-154-A)
Connection:
Time
5'40"
4'16"
4'08"
3'29"
6'42"
Music Demonstration
Contents
Seal : "Prayer for the Dying"
Andrew Litton conducting
The Dallas Symphony Orchestra & Chorus:
Excerpt from Tchaikovsky: "1812 Overture"
Alan Parsons with Christopher Cross: "So Far Away"
Shoelss Joe: "The Bet"
TELARC: "A Touch of Surround Madness"
Procedure:
1. Set the FUNCTION of the receiver to the CD position and con-
firm that " [OPTICAL] " and "CD" appear on the display.
2. Insert the DTS test CD into the CD player and play the CD.
3. About three seconds later, confirm that the receiver recognizes
the optical signal and that the "DTS" and "dts [3/2]" are appear
on the display.  Confirm also that MULTI CHANNEL DECOD-
ING (blue lamp) flashes on the front panel.
Track No.
6
7
8
9
10
11
12
13
14
15
16
Set-Up
Contents
1 kHz sine (All channels)
Level Adjustment and Harmonic Distortion Analysis
100 Hz sine (All channels)
Verification of Signal and Subwoofer Testing
C-Weighted Pink Noise-Left Front Channel
C-Weighted Pink Noise-Center Channel
C-Weighted Pink Noise-Right Front Channel
C-Weighted Pink Noise-Right Rear Channel
C-Weighted Pink Noise-Left Rear Channel
C-Weighted Pink Noise-Subwoofer (LEE)
C-Weighted Pink Noise-All Channels
10 Hz to 20 kHz Sine Sweep
An "All Channel" Frequency Response Test
20 Hz to 160 Hz sine sweep
A "Subwoofer" Low Frequency Response Test
* Track numbers from 8 to 14 are for Room Equalization and Channel Iden-
tification.
1
 CD player
2
 Optical
     digital output
3
 Optical input
4
 Receiver  STR-DA3ES/DA5ES/VA555ES
5
 DTS test CD (Music Demonstration and Set Up Disc)
Time
1'00"
1'00"
1'00"
2'00"
2'00"
2'00"
2'00"
2'00"
2'00"
2'00"
  2'00"
Note:
 Be careful about an electrical shock caused by remains of electrical potential.
            The following parts on DC board have the +B or -B electrical potential.
Heat sink for rectifier diodes D801.
Aluminium case of smoothing capacitor C803, 804.
           The 40-60V electrical voltage remains in C803, 804 when the power turns off.
           Be sure to discharge in the following manner before servicing.
           Discharging
              1. Pull out the power cord from the wall outlet.
              2. Connect 330 ohm 2W resistors between the heat sinks
                  for CNP803 1pin and 4pin and chassis individually.
              3. Check the electrical potential drops fully, then start
                  servicing.
DC BOARD (COMPONENT SIDE)
C803
D801
C804
(CHASSIS)
330
Ω 
2W
CNP8031
4
+B
-B
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