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TABLE OF CONTENTS
Specifications ááááááááááááááááááááááááááááááááááááááááááááááááááá\
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1. GENERAL
Location and Function of controls áááááááááááááááááááááááááááááááááááááááááááááááá 4
2. EXPLANATION OF IC TERMINALSááááááááááááááááááá 5
3. DIAGRAMS
3-1. Circuit Boards Location ááááááááááááááááááááááááááááááááááááááááááááááááááá\
áá 7
3-2. Printed Wiring Boards (Main Section) ááááááááááááááááááááááááááááááá 8
3-3. Schematic Diagram (Main Section) ááááááááááááááááááááááááááááááááá 13
3-4. Schematic Diagram (Display Section) ááááááááááááááááááááááááááááá 18
3-5. Printed Wiring Boards (Display Section) ááááááááááááááááááááááááá 21
4. EXPLODED VIEWS
4-1. Front Panel Section ááááááááááááááááááááááááááááááááááááááááááááááááááá\
ááááááá 25
4-2. Chassis Section ááááááááááááááááááááááááááááááááááááááááááááááááááá\
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5. ELECTRICAL PARTS LISTáááááááááááááááááááááááááááááááá 29
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Pin No.123456789101112131415161718192021222324252627282930313233343536373839
40
I/OOOOOOOOÑIIIOOIOIIIIÑOOOOIIIIÑÑÑÑÑÑÑOÑÑÑ
O
Description
Fluorescent indicator tube drive.
Power supply (+5V).System clock.System data.PLL data input from TU001.Chip enable output.Chip enablr output.Input for model slect.Standby relay ON/OFF control.Protector detect input.System reset terminal.Auto stop detect input.Stereo detect input.Ground.Speaker relay drive.Surround Relay.Power relay drive.Not used.A/D signal input terminal.A/D3 key input terminal.A/D2 key input terminal.A/D1 key input terminal.Power supply (+5V).Reference voltage (+5V).Ground.Not used (Open).Ground.System clock (4.19MHz).System clock (4.19MHz).Mute drive output for mPD2581V (IC701).Plologic LED drive.CINEMA STUDIO LED drive.Hall LED drive.
Tuner mute drive output.
Pin NameDIG7DIG6DIG5DIG4DIG3DIG2DIG1+5VS. CLKS. DATAPLL. DATAS. CE (LC7288)S. CE (LV100)REARRYBRIDGE CABLEPROTECTRESETAUTO-STOPSTEREO-INAVssSP-RYSURR-RYPOWER-RYNot usedSIGNALA/D3A/D2A/D1AVDDAV. R E FGNDNCVssX1X2IC. MUTEPROLOGICCSTUDIOHALL
T. MUTE
SECTION 2
EXPLANATION OF IC TERMINALS
Pin No.414243444546474849505152535455565758596061626364656667686970717273747576777879
80
I/OOOÑIIIIÑIIOÑÑOOIIIIIOOOOOOOOOOÑOOOOOOOO
O
Description
Volume up.Volume down.Standby LED drive.System power ON/OFF.RDS data input terminal (EXCEPT Australian, E, Saudi Arabia, PX model).RDS clock input terminal (EXCEPT Australian, E, Saudi Arabia, PX model).Stop signal input from NJM2103D (IC950).Ground.Sircs signal input.Power switch input terminal.5.1ch input LED.Power supply (+5V).Bass boost LED drive.Line mute drive.Surround Lch mute.Input for model select.Key in 4.Key in 3.Key in 2.Key in 1.Surround Rch mute.Key out 1.Key out 2.Key out 3.Key out 4. Connect to Ð24V. Fluorescent indicator tube drive.
Pin NameVOLUME UPVOLUME DOWNSTANDBYSYS. POWERRDS. DATA. INRDS. CLK. INSTOPVssSIRCSPOWER SW5.1ch LED+5VBASS BOOSTFUNC. MUTESL MUTEVERSIONK14K13K12K11SR MUTES15S14S13S12S11S10S9S8S7VLOADS6S5S4S3S2S1DIG10DIG9
DIG8
SECTION 3
DIAGRAMS
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Fluorescent indicator tube drive.
3-1. CIRCUIT BOARDS LOCATION
Ñ 3 ÑÑ 4 ÑÑ 5 ÑÑ 6 ÑÑ 7 Ñ
IC201 : mPD78044FGF-041-3B9
SP SW boardPRIMARY boardSECONDARY board
SELECTOR board
STBY board
MAIN board VIDEO board
SWITCH board
VOLUME board
VR TONE board KEY board DISPLAY board
After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, ÒmetallizedÓ 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 manufacturersÕ 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 ÒlimitÓ 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)
SAFETY CHECK-OUT
To Exposed Metal
Parts on Set
0.15 µF 1.5k
½
AC
voltmeter
(0.75V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
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
PUB-LISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
Ë LA SƒCURITƒ!
LES COMPOSANTS IDENTIFƒS PAR UNE MARQUE ! SUR LES
DIAGRAMMES SCHƒMATIQUES ET LA LISTE DES PIéCES SONT
CRITIQUES POUR LA SƒCURITƒ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIéSES SONY
DONT LES NUMƒROS SONT DONNƒS DANS CE MANUEL OU
DANS LES SUPPƒMENTS PUBLIƒS PAR SONY.
D460Z
DE515
V505
US, Canadian model : AC 120V 60Hz
Australian model : AC 240V ~50/60Hz
E, Saudi Arabia, PX model : AC 120, 220, 240V selectable ~50/60Hz
Singapore, Malaysia,
Chinese model : AC 230V ~50/60Hz
MODEL IDENTIFICATION
MODEL NO.
FM STEREO/FM-AM RECEIVER
STR -
SECTION 1
GENERAL
LOCATION AND FUNCTION OF CONTROLS
