Sony STR-GX390 Service Manual

STR-GX290/GX390 |
> uPD75206GF-727-3BE
SECTION 2
IC PIN FUNCTION
SIGNAL NAME FUNCTION 1/0
RESET Micro Computer RESET I
TO FL tube indication (invalid) digit 0 |
Tl FL tube indication digit | 9
T2 FL tube indication digit L 0
—_—|
T3 FL tube indication digit 0
TA FL tube indication digit 0
TS | FL tube indication digit 0
T6 tube indication digit 0
T7 tube indication digit 0 |
T8 tube indication digit 0
T9 tube signal indication digit 0 |
12 T10/PH3 SURR. C/MONITOR OUTPUT 0
13 TL1/PH2 SURR.B OUTPUT 0
14 T12/PH1 SURR. A OUTPUT _ 0
15 T13/PHO | -20dB Muting Output rl
16 T14/S11 | FL tube indication Segment/Diode | 0
17 T15/S10 FL tube indication Segment/Diode
18 V road Ta tube pulldown power supply . -
19 V pre FL tube driver power supply -
20 ) 59 | FL tube indication Segment/Diode 0
21 $8. FL tube indication Segment/Key Scan | 0
22 S7 FL tube indication Segment/Key Scan 0
23 S6 FL tube indication Segment/Key Scan 0
24 $5 FL tube indication Segment/Key Scan 0
25 $4 FL tube indication Segment/Key Scan 0
Voo Micro Computer power supply -
$3 FL tube indication Segment/Key Scan 0
$2 FL tube indication Segment/Key Scan 0
$1 Tro tbe indication Segment/Key Scan 0 |
SO FL tube indication Segment/Key Scan
POO/INT4 Siena to cut power supply
PO1/SCK
Serial latch for electrical sdjustment use

Sony STR-GX390 Specifications

General

Brand	Sony
Model	STR-GX390
Category	Stereo Receiver
Language	English