Sony STR-DE1075 Service Manual ▷ View online
3
STR-DE1075
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
µ
F
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
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.
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.
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 PUB-
LISHED BY SONY.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• 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.
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
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.
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 2 V AC range are suitable. (See Fig. A)
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 2 V AC range are suitable. (See Fig. A)
TABLE OF CONTENTS
1.
SERVICING NOTES
...............................................
4
2.
GENERAL
...................................................................
5
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
6
3-2. Case .................................................................................
7
3-3. S-VIDEO board, VIDEO Board, Tuner .........................
7
3-4. VIDEO AU Board ...........................................................
8
3-5. DIGITAL Board ..............................................................
8
3-6. MAIN Board ...................................................................
9
4.
TEST MODE
.............................................................. 10
5.
ELECTRICAL ADJUSTMENT
............................ 11
6.
DIAGRAMS
6-1. Block Diagram – TUNER/VIDEO INPUT Section – ... 13
6-2. Block Diagram – AUDIO DSP Section – ...................... 14
6-3. Block Diagram – AUDIO CONTROL Section – .......... 15
6-4. Block Diagram – POWER AMP Section – ................... 16
6-5. Block Diagram
6-2. Block Diagram – AUDIO DSP Section – ...................... 14
6-3. Block Diagram – AUDIO CONTROL Section – .......... 15
6-4. Block Diagram – POWER AMP Section – ................... 16
6-5. Block Diagram
– DISPLAY/KEY CONTROL Section – ........................ 17
6-6. Block Diagram – POWER SUPPLY Section – ............. 18
6-7. Note for Printed Wiring Boards
6-7. Note for Printed Wiring Boards
and Schematic Diagrams ................................................ 19
6-8. Schematic Diagram – DIGITAL Board (1/5) – ............. 21
6-9. Schematic Diagram – DIGITAL Board (2/5) – ............. 22
6-10. Schematic Diagram – DIGITAL Board (3/5) – ............. 23
6-11. Schematic Diagram – DIGITAL Board (4/5) – ............. 24
6-12. Schematic Diagram – DIGITAL Board (5/5) – ............. 25
6-13. Printed Wiring Board
6-9. Schematic Diagram – DIGITAL Board (2/5) – ............. 22
6-10. Schematic Diagram – DIGITAL Board (3/5) – ............. 23
6-11. Schematic Diagram – DIGITAL Board (4/5) – ............. 24
6-12. Schematic Diagram – DIGITAL Board (5/5) – ............. 25
6-13. Printed Wiring Board
– DIGITAL Board (Component Side) – ......................... 26
6-14. Printed Wiring Board
– DIGITAL Board (Conductor Side) – ........................... 27
6-15. Printed Wiring Board – VIDEO Board – ....................... 28
6-16. Schematic Diagram – VIDEO Board – ......................... 29
6-17. Printed Wiring Boards
6-16. Schematic Diagram – VIDEO Board – ......................... 29
6-17. Printed Wiring Boards
– S-VIDEO/VIDEO AU Boards – .................................. 30
6-18. Schematic Diagram
– S-VIDEO/VIDEO AU Boards – .................................. 31
6-19. Printed Wiring Board – MAIN Board – ........................ 32
6-20. Schematic Diagram – MAIN Board (1/3) – .................. 33
6-21. Schematic Diagram – MAIN Board (2/3) – .................. 34
6-22. Schematic Diagram – MAIN Board (3/3) – .................. 35
6-23. Printed Wiring Board – BIAS Board – .......................... 36
6-24. Schematic Diagram – BIAS Board – ............................. 37
6-25. Printed Wiring Board – DISP Board – .......................... 38
6-26. Schematic Diagram – DISP Board – ............................. 39
6-27. Printed Wiring Boards
6-20. Schematic Diagram – MAIN Board (1/3) – .................. 33
6-21. Schematic Diagram – MAIN Board (2/3) – .................. 34
6-22. Schematic Diagram – MAIN Board (3/3) – .................. 35
6-23. Printed Wiring Board – BIAS Board – .......................... 36
6-24. Schematic Diagram – BIAS Board – ............................. 37
6-25. Printed Wiring Board – DISP Board – .......................... 38
6-26. Schematic Diagram – DISP Board – ............................. 39
6-27. Printed Wiring Boards
– H.P/JOG/POWER/SP/VIDEO 3/VOL Boards – ......... 40
6-28. Schematic Diagram
– H.P/JOG/POWER/SP/VIDEO 3/VOL Boards – ......... 41
6-29. Printed Wiring Boards
– POWER SUPPLY Section – ........................................ 42
6-30. Schematic Diagram – POWER SUPPLY Section – ...... 43
6-31. IC Pin Function Description ........................................... 49
6-31. IC Pin Function Description ........................................... 49
7.
EXPLODED VIEWS
7-1. Case Section .................................................................... 61
7-2. Front Panel Section ......................................................... 62
7-3. Chassis Section-1 ............................................................ 63
7-4. Chassis Section-2 ............................................................ 64
7-2. Front Panel Section ......................................................... 62
7-3. Chassis Section-1 ............................................................ 63
7-4. Chassis Section-2 ............................................................ 64
8.
ELECTRICAL PARTS LIST
............................... 65
Ver 1.2
4
STR-DE1075
SERVICE POSITION
In checking the DIGITAL board, prepare jig (extension cable J-2501-208-A: 200 mm 21 core).
SECTION 1
SERVICING NOTES
MAIN board
DIGITAL board
Connect jig (extension cable J-2501-208-A)
to the MAIN board (CN806, 807) and
DIGITAL board (CN1102, 1103).
to the MAIN board (CN806, 807) and
DIGITAL board (CN1102, 1103).
5
STR-DE1075
SECTION 2
GENERAL
This section is extracted from
instruction manual.
instruction manual.
LOCATION OF CONTROLS
– Front Panel –
2ND ROOM wf (25)
6.1CH DECODING wa (29)
6.1CH DECODING indicator ql
6.1CH DECODING wa (29)
6.1CH DECODING indicator ql
(29)
AM eh (36)
CINEMA STUDIO EX A–C qh
CINEMA STUDIO EX A–C qh
(26)
DIGITAL CONCERT HALL A,
B w; (27)
Cursor buttons (
/
) ef (17,
31, 33, 34, 38, 40)
Digital Cinema Sound indicator
qk
(26)
DIMMER 5 (25)
DIMMER indicator 8 (25)
Display qj (30)
DISPLAY 4 (25)
DIMMER indicator 8 (25)
Display qj (30)
DISPLAY 4 (25)
ENTER ed (38)
EQ 0 (34)
EQUALIZER wk (34)
FM ej (36)
FM MODE ek (36)
FUNCTION wg (22, 23, 36–38)
INPUT MODE wj (23)
IR receptor 6
Jog dial eg (17, 31, 33, 34, 38,
EQ 0 (34)
EQUALIZER wk (34)
FM ej (36)
FM MODE ek (36)
FUNCTION wg (22, 23, 36–38)
INPUT MODE wj (23)
IR receptor 6
Jog dial eg (17, 31, 33, 34, 38,
40)
LEVEL qs (33)
MASTER VOLUME wd (21, 24)
MEMORY r; (37)
MODE wh (23)
MULTI /2CH A. DIRECT wl
MASTER VOLUME wd (21, 24)
MEMORY r; (37)
MODE wh (23)
MULTI /2CH A. DIRECT wl
(24, 28)
MULTI CHANNEL DECODING
indicator qd
MUTING ws (24)
NAME qg (38)
ON SCREEN ra (8)
PHONES jack 3 (24)
PRESET TUNING +/– 7 (37)
SET UP qf (17, 40)
SHIFT el (37)
SOUND FIELD 2CH e; (28)
SOUND FIELD A.F.D. es (28)
SOUND FIELD MODE ea (26,
NAME qg (38)
ON SCREEN ra (8)
PHONES jack 3 (24)
PRESET TUNING +/– 7 (37)
SET UP qf (17, 40)
SHIFT el (37)
SOUND FIELD 2CH e; (28)
SOUND FIELD A.F.D. es (28)
SOUND FIELD MODE ea (26,
35)
SPEAKERS switch 2 (24)
SURR qa (31)
TUNING +/– 9 (36)
VIDEO 3 INPUT jacks rs (8)
?/1 (power) 1 (16, 21, 22, 35)
SURR qa (31)
TUNING +/– 9 (36)
VIDEO 3 INPUT jacks rs (8)
?/1 (power) 1 (16, 21, 22, 35)
•
•
wf
wh
wg
wk
ea
es
wl
e;
wj
123
qh
4
qs
8
5
9
0qa
qd qfqg
qj qkqlw;wa
ws
wd
6 7
ed
rs
ej
ek
el
r;
ef
eg
eh
ra
– Rear Panel –
7
1
2 3 4
5
6
8
9
0
qa
qs
qd
qf
qh
qg
qj
qk
ql
1
DIGITAL jack
2
ANTENNA terminal
3
CONTROL A1 II jack
4
MONITOR jack
5
TV/SAT jack
6
DVD/LD jack
7
VIDEO 2 jack
8
VIDEO 1 jack
9
SPEAKERS terminal
0
AUDIO OUT jack
qa
INPEDANCE SELECTOR
qs
MULTI CH IN 2 jack
qd
MULTI CH IN 1 jack
qf
PHONO jack
qg
CD/SACD jack
qh
MD/DAT jack
qj
TAPE jack
qk
2ND ROOM jack
ql
AC OUTLET
STR-DE1075
6
• This set can be disassembled in the order shown below.
3-1.
DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
SET
3-3. S-VIDEO BOARD,
VIDEO BOARD, TUNER
(Page 7)
(Page 7)
3-2. CASE
(Page 7)
3-5. DIGITAL BOARD
(Page 8)
3-6. MAIN BOARD
(Page 9)
3-4. VIDEO AU BOARD
(Page 8)