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STR-DA6400ES
QQ
3 7 63 1515 0
NOTES ON CHIP COMPONENT REPLACEMENT
Never reuse a disconnected chip component.
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing 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)
To Exposed Metal
TE
Parts on Set
L 13942296513
0.15 μF
Fig. A. Using an AC voltmeter to check AC leakage.
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SAFETY-RELATED COMPONET 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
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2
http://www.xiaoyu163.com
AC
1.5 kΩ
voltmeter
(0.75 V)
Earth Ground
x
ao
y
i
WITH
SONY
http://www.xiaoyu163.com
8

TABLE OF CONTENTS

1.
2.
.................................................................. 10
3.
3-1. Disassembly Flow .......................................................... 17
3-2. Case ................................................................................ 18
3-3. Tuner (FM/AM), SPTM Board ...................................... 18
3-4. DSP/DIGITAL/CIS/CONTROL Boards ......................... 19
3-5. D VIDEO/NETWORK Boards ...................................... 19
3-6. Front Panel Block ........................................................... 20
3-7. A-VIDEO Board ............................................................ 20
3-8. ANALOG Board ............................................................. 21
3-9. Heat Sink Block ............................................................. 21
4.
5.
6.
6-1. Block Diagram - CONTROL Section -........................... 29
6-2. Block Diagram - DSP Section - ...................................... 30
6-4. Block Diagram - HDMI Section (1/2) - .......................... 32
6-5. Block Diagram - HDMI Section (2/2) - .......................... 33
3
6 7
1 3
6-11. Block Diagram - POWER AMP Section - ...................... 39
6-12. Block Diagram - VIDEO Section - ................................. 40
DMPORT Section - ......................................................... 41
- MAIN Board (Component Side) - ................................ 44
6-16. Printed Wiring Board
- MAIN Board (Conductor Side) - .................................. 45
- DIGITAL Board (Component Side) - ........................... 52
- DIGITAL Board (Conductor Side) - ............................. 53
6-25. Printed Wiring Board
- DSP Board (Component Side) - ................................... 54
- DSP Board (Conductor Side) - ..................................... 55
6-27. Schematic Diagram - DSP Board (1/4) - ........................ 56
6-28. Schematic Diagram - DSP Board (2/4) - ........................ 57
6-29. Schematic Diagram - DSP Board (3/4) - ........................ 58
6-30. Schematic Diagram - DSP Board (4/4) - ........................ 59
6-31. Printed Wiring Board
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- ANALOG Board (Component Side) - .......................... 60
6-32. Printed Wiring Board
.
- ANALOG Board (Conductor Side) - ............................ 61
2 9
9 4
2 8
.............................................
............................................................ 23
........................ 27
1 5
0 5
8
2 9
9 4
m
co
9 9
4
2 8
9 9

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