Sony CFD-ZW750 Service Manual page 25

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5-14. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — (for CFD-ZW770) • Refer to page 53 for IC Block Diagrams.
• Semiconductor Location
Ref. No. Location Ref. No. Location
D1 F-12 IC1 H-11
D2 F-12 IC2 H-10
D3 F-11 IC301 G-6
D4 B-12 IC302 D-7
D5 B-12 IC303 B-6
D6 H-12 IC304 B-8
D8 C-12 IC305 H-4
D9 C-12
D10 H-12 Q1 F-10
D301 E-7 Q101 C-7
D302 H-5 Q201 C-6
D303 I-5 Q301 F-6
D304 F-4 Q302 F-6
D305 F-4 Q303 F-6
D306 H-9 Q304 F-7
D307 H-9 Q305 F-4
D308 H-9 Q306 G-4
D309 H-8 Q307 G-4
D310 H-8 Q308 F-4
D311 E-8 Q309 F-4
D312 E-8 Q310 F-4
D313 C-11 Q311 F-9
D314 C-11 Q312 F-9
D315 C-10 Q313 E-9
D316 D-10 Q314 E-9
D317 D-10 Q315 H-7
D318 D-10 Q316 H-8
D319 C-11 Q317 H-8
T E
D320 C-11 Q318 L F-8 1 3 9 4 2 2 9 6 5 1 3
D321 D-10 Q319 F-8
D322 D-10 Q320 C-11
D323 D-9 Q321 E-7
D324 E-10 Q322 E-8
D325 B-8 Q323 E-8
D326 B-9 Q324 C-11
D327 C-11 Q325 C-11
D328 D-10 Q327 D-11
D329 H-4 Q328 D-11
D331 B-9 Q329 D-11
D333 D-10 Q330 D-9
D334 H-4 Q331 B-9
D335 H-5 Q332 H-4
D336 I-8 Q333 B-9
D337 I-8 Q334 I-4
D338 H-8 Q335 I-4
D339 H-8 Q336 I-5
D340 H-8 Q337 I-5
D341 G-4 Q338 D-8
D342 G-4 Q339 D-9
D343 G-3 Q340 G-4
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CFD-ZW750/ZW770
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Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1
/ W or less unless otherwise
4
specified.
• C : panel designation.
• U : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
( ) : PB (TAPE)
< > : REC (TAPE)
[ ] : CD STOP
(( )) : DUBBING
<< >> : HIGH-SPEED DUBBING
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: FM
E : PB (DECK A)
d
: PB (DECK B)
a : REC (DECK B)
J
: CD