SONY SDP-EP9ES Service manual.pdf

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SDP-EP9ES
SERVICE MANUAL
US Model
Canadian Model
AEP Model
E Model
Chinese Model
Photo : GOLD
SPECIFICATIONS
DIGITAL SURROUND PROCESSOR
MICROFILM
—1—
MODEL IDENTIFICATION
— BACK PANEL —
TABLE OF CONTENTS
1. SERVICING NOTE
........................................................... 3
Parts No.
2. GENERAL
............................................................................ 4
3. TEST MODE
...................................................................... 12
MODEL
US model
CND model
AEP model
E, MY, SP, CH model
PARTS No.
4-987-861-1
4-987-861-2
4-987-861-3
4-987-861-4
4. ELECTRICAL ADJUSTMENTS
................................ 15
5. DIAGRAMS
5-1. Circuit Boards Location .................................................... 16
5-2. Block Diagrams
• D/A Section .................................................................... 17
• AC-3 (RF) Section ......................................................... 19
• Control Section ............................................................... 21
• Power Section ................................................................. 23
5-3. Printed Wiring Board — Main Section — ........................ 25
5-4. Schematic Diagram — Control Section — ....................... 29
5-5. Schematic Diagram — Dolby AC-3 Section — ................ 32
5-6. Schematic Diagram — D/A Section — ............................. 35
5-7. Printed Wiring Board — Display Section — .................... 39
5-8. Schematic Diagram — Display Section — ....................... 43
5-9. Printed Wiring Board — Power Section — ...................... 46
5-10. Schematic Diagram — Power Section — ......................... 49
5-11. IC Pin Functions
• IC201 System Controller (HD6433397A13F) ............... 51
• IC301 Digital Audio Interface Receiver (LC8905V) ..... 53
• IC401, 402, 403 Sampling Rate Converter
(CXD8517Q) .................................................................. 54
• IC423 Digital Signal Processor (SSP424923) ................ 55
• IC424 Digital Signal Processor (DSP56009) ................. 57
• IC901 Digital Signal Processor (AC-3 RF Demodulator)
(PD4606A) ..................................................................... 59
5-12. IC Block Diagrams ............................................................ 62
• Abbreviation
CND : Canadian model.
MY : Malaysia model.
SP : Singapore model.
CH : Chinese model.
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.
6. EXPLODED VIEWS
6-1. Front Panel Section ............................................................ 67
6-2. Chassis Section .................................................................. 68
7. ELECTRICAL PARTS LIST
......................................... 69
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK
!
OR DOTTED LINE
WITH MARK
!
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
!
SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS
SONT DONNÉS DANS CE MANUEL OU DANS LES
SUPPLÉMENTS PUBLIÉS PAR SONY.
—2—
SECTION 1
SERVICING NOTE
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
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 re-
turn to chassis, must not exceed 0.5 mA (500 microampers). Leak-
age 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 digi-
tal 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 2V AC range are suitable. (See Fig. A)
RV901 of Main Board
RV901 of the main board requires no adjustments. Please note that it
should be dixed to mechanical center position when you moved and
do not know origin position.
Connection and Test Disc
Connection of this unit to a AC-3 Dolby surround equipment will
realize outstanding sound playback.
Check if the respective surround channel outputs are playing back
normally by the following method.
Jig :
Discription
AC-3 TEST LD
Part No.
J-2501-132-A
Connected Equipment:
AC-3 LD player
(This unit is also compatible with the digital versatile disc player
(DVD). The DVD must be checked with the LD player using all
the circuits of this unit.)
Connecting Method:
AC-3 RF output terminal Coaxial digital
connecting cable VMC-10G, etc. (Optional)
To Exposed Metal
Parts on Set
AC-3 compatible
LD player
AC
voltmeter
(0.75V)
Unit
0.15
µ
F
1.5k
Ω
AC-3 RF
output terminal
AC-3 RF
input terminal
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
Checking Method:
Play back a test disc of the LD player, and check if the contents
recorded on the disc case (printed on the disc case) are played
back normally.
—3—
SECTION 2
GENERAL
This section is extracted from
instruction manual.
—4—
—5—

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