Sony FST-GTK2I / SA-WGTK2I Service Manual ▷ View online
SA-WGTK2i
5
2-2. FRONT PANEL ASSY
2
CN1370 (3P)
qh
8
CN1320 (5P)
9
CN1340 (2P)
3
two screws
(+BVTP
3
u10)
6
four screws
(+BVTP
4
u16, TYPE 1)
1
front panel
q;
two screws
(+BVTP
3
u10)
qa
two screws
(+BVTP
3
u10)
qg
button, power
qd
knob, volume (SW)
qs
SW VOL board
4
SW SPK LED board
cushion, duct
7
loudspeaker (20cm)
5
grille, spk (LED)
qf
SW SWITCH board
SA-WGTK2i
6
SECTION 3
DIAGRAMS
SW TRANS board
SUBWOOFER board
SW SWITCH board
SW VOL board
SW SPK LED board
• Circuit Boards Location
SA-WGTK2i
SA-WGTK2i
7
7
3-1. BLOCK DIAGRAM
+RE1 6
-RE2 7
ST-BY
+12V
13
IC1201 PRE AMP
7
5
1
3
BUFFER
Q1216
SPK
LED RED
D1370
D1371
SPK
LED BLUE
RV1320
IN1
15
-RE1 5
+RE2 4
OVERLOAD
DETECT
Q1212, Q1213
D1320
SUBWOOFER
ON/OFF
SUBWOOFER
ON/OFF
SUBWOOFER
LEVEL
: AUDIO
(AC IN)
FAN
CONTROL
Q1210, Q1211
PT1200
SUB POWER
TRANSFORMER
+12V
REGULATOR
IC1350
2
1
D1250
IC1200
POWER AMP
+VCC
M101
DC FAN
+12V
-VCC
RECTIFIRE
RECTIFIRE
RY1290
D1240
D1241
JW1300
S1304
F1302
F1303
F1301
D1351, D1352
D1353, D1354
FAN PROTECT
Q1201
RELAY
DRIVE
Q1207, Q1220
DELAY
CCT
Q1221, Q1222
LED
DRIVER
Q1209
STK ST
DRIVE 1
Q1206
STK ST
DRIVE 2
Q1215
SPK LED
DRIVE
Q1281
SPK LED
DRIVE
Q1282
SUBWOOFER
DC DETECT
Q1203, Q1204,
Q1208, Q1217
POWER
LED DRIVE 1
Q1202
J1200
INPUT
SA-WGTK2i
SA-WGTK2i
8
8
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• C : panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Voltages is dc with respect to ground under no-signal
(detuned)
• Voltages is dc with respect to ground under no-signal
(detuned)
conditions.
no mark : FM
• Voltages are taken with VOM (Input impedance 10 M
• Voltages are taken with VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal production
tolerances.
• Signal path.
F :
F :
AUDIO
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
•
• X : Parts extracted from the component side.
•
: Pattern from the side which enables seeing.
Note:
The components identi-
fi
The components identi-
fi
ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
cal for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spécifi é.
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spécifi é.
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