Read Sony SLV-469 / SLV-478 / SLV-677HF / SLV-678HF / SLV-688HF / SLV-L47 / SLV-L48 / SLV-L57 / SLV-L58 / SLV-L67HF / SLV-L68HF / SLV-L77HF / SLV-L78HF / SLV-X50 / SLV-X60HF Service Manual online
Mono model:SLV-478/L47/L48/L57/L58/X50
921-647-11)
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COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
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.
connections. Check the entire board surface for solder splashes
and bridges.
"pinched" or contact high-wattage resistors.
transistors, that were installed during a previous repair. Point
them out to the customer and recommend their replacement.
of deterioration. Point them out to the customer and
recommend their replacement.
Recommend the replacement of any such line cord to the
customer.
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5mA (500 microampers).
Leakage current can be measured by any one of three methods.
TW-540A. Follow the manufacturers' instructions to use these
instruments.
digital multimeter is suitable for this job.
VOM or battery-operated AC voltmeter. The "limit" indication
is 0.75V, 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)
Voltmeter
(0.75 V)
(HiFi MODEL) ··································································· 7
UPPER DRUM ··································································· 7
Setting up the remote commander ········································· 1-1
Hookups ················································································· 1-1
Selecting a language ······························································ 1-7
Setting the clock ···································································· 1-7
Setting up cable box control ·················································· 1-7
Presetting channels ································································ 1-9
Setting up VCR Plus+ ·························································· 1-10
Recording TV programs ······················································ 1-11
Recording TV programs using VCR Plus+ ························· 1-12
Setting the timer manually ··················································· 1-13
Searching for a selected point on the tape ··························· 1-14
Skip-searching automatically ··············································· 1-14
Recording TV programs using the quick timer ··················· 1-15
Checking/changing/cancelling timer settings ······················ 1-15
Recording stereo and bilingual programs ···························· 1-15
Adjusting the picture ··························································· 1-16
Changing menu options ······················································· 1-16
Editing with another VCR ··················································· 1-16
Troubleshooting ··································································· 1-17
Index to parts and controls ··················································· 1-18
ASSEMBLY ···································································· 2-2
MA-317 BOARD ···························································· 2-3
SCHEMATIC DIAGRAMS
SCHEMATIC DIAGRAMS ············································ 4-3
TUNER, POWER SUPPLY)
PRINTED WIRING BOARD ························· 4-3
SCHEMATIC DIAGRAM ···························· 4-23
SCHEMATIC DIAGRAM ···························· 4-24
IC PIN FUNCTION DESCRIPTION
MECHANISM BLOCK INTERFACE
(MA-317 BOARD IC160) ··············································· 5-1
SERVO PERIPHERAL CIRCUIT INTERFACE
(MA-317 BOARD IC160) ··············································· 5-1
PERIPHERAL CIRCUIT INTERFACE
(MA-317 BOARD IC160) ··············································· 5-2
INPUT SELECTION BLOCK INTERFACE
(MA-317 BOARD IC160) ··············································· 5-2
VIDEO/RP BLOCK INTERFACE
(MA-317 BOARD IC160) ··············································· 5-2
AUDIO BLOCK INTERFACE
(MA-317 BOARD IC160) ··············································· 5-2
(MA-317 BOARD IC160) ··············································· 5-3
2-1-2. Equipment Connection ···················································· 6-1
2-1-3. Input Signal Check ·························································· 6-1
2-1-4. Alignment Tape ······························································· 6-1
2-1-5. Input/Output Levels and Impedance ······························· 6-2
2-1-6. Adjustment Sequence ······················································ 6-2
2-2.
2-3.
2-4-2. SYNC AGC Check (MA-317 Board) ······························ 6-4
2-4-3. White Clip/Dark Clip Check (MA-317 Board) ··············· 6-4
2-4-4. Recording Y Level Check (MA-317 Board) ··················· 6-5
2-4-5. Recording Chroma Level Check(MA-317 Board) ·········· 6-5
2-4-6. Playback Level Check (MA-317 Board) ························· 6-5