Sony PHC-ZW770L Service Manual page 4

5-10. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 43 for IC Block Diagrams.
• Semiconductor Location
Ref. No. Location Ref. No. Location
D1 G-12 IC302 D-7
D2 F-12 IC303 B-6
D3 E-11 IC304 B-8
D7 G-9 IC305 H-4
D8 G-9
D10 B-11 Q2 F-10
D11 B-11 Q13 F-10
D13 G-9 Q40 F-10
D14 G-9 Q41 D-12
D301 E-7 Q42 E-12
D302 H-5 Q43 D-11
D303 H-5 Q44 E-11
D304 F-4 Q61 H-10
D305 F-4 Q101 C-7
D306 H-8 Q201 C-6
D307 H-8 Q301 F-6
D308 H-8 Q302 F-6
D309 H-8 Q303 F-6
D310 H-8 Q304 E-7
D311 E-7 Q305 E-4
D312 E-7 Q306 G-4
D313 C-10 Q307 G-4
D314 C-10 Q308 F-4
D315 C-10 Q309 F-4
D316 D-10 Q310 F-4
D317 D-10 Q311 F-9
D318 D-10 Q312 F-9
D319 C-11 Q313 E-9
D320 C-11 Q314 E-9
D321 D-9 Q315 H-7
D322 D-9 Q316 F-8
D323 D-9 Q317 F-8
D324 E-10 Q318 F-8
D325 B-8 Q319 F-8
D326 B-9 Q320 C-10
D327 C-10 Q321 E-7
D328 D-10 Q322 E-8
D329 H-4 Q323 E-8
D331 B-9 Q324 C-11
D333 D-9 Q325 C-11
D334 H-4 Q327 D-11
D335 H-5 Q328 D-10
D336 H-7 Q329 D-11
D337 H-7 Q330 D-9
D338 H-7 Q331 B-9
D339 H-7 Q332 G-4
D340 H-7 Q333 B-9
D341 F-4 Q334 I-4
D342 G-4 Q335 H-4
D343 F-4 Q336 H-5
Q337 H-5
IC1 G-11 Q338 D-8
IC2 G-10 Q339 D-8
IC301 G-6 Q340 G-4
(Page 40)
– 31 – – 32 –
PHC-ZW770L
(Page 37)
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.
(Page 27)
• 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)
(Page 24)
d
: PB (DECK B)
a : REC (DECK B)
J
: CD
– 33 –