Sony HCD-C990 Service Manual - Page 57

7-26. SCHEMATIC DIAGRAM - AMP Section (2/2) - • See page 71 for Waveform. • See page 76 for IC Block Diagrams. (2/2) A1 A2 A3 A4 A5 FB300 L300 0 C302 0.01 C301 22 6.3V BUFFER VCC R300 10k GND IC300 MC74VHC1G04 X300 49.152MHz R370 680 C307 5p R302 1M C308 0.001 L302 C432 1µH 10.0p A6 A7 A8 A9 A19 D190 C190 RB411D 2.2 R190 100k C191 1 50V D191 RB411D A10 A11 (Page 56) A12 A13 A14 A15 A16 A17 A18 EN DIAG D351 SFPL C303 0.022 D361 SFPL FB303 C318 100 10V C319 0.1 C317 100 50V C316 0.01 C313 0.1 C401 100 10V C304 0.022 C400 C111 C121 0.1 0.01 0.1 POWER AMP IC301 CXD9702L L401 10µH D311 LI116 D321 LI116 D331 P6SMB39AT3 D341 P6SMB39AT3 C452 1 C451 1 C131 0.1 D352 SFPL C334 0.022 D362 SFPL FB309 C345 100 10V C343 0.1 C342 100 50V C341 0.01 C332 0.1 C407 100 10V C333 0.022 C406 C112 C122 0.1 0.01 0.1 POWER AMP IC304 CXD9702L D312 LI116 D322 LI116 D332 P6SMB39AT3 D342 P6SMB39AT3 L402 10µH C453 1 C454 1 C132 0.1 D353 SFPL C356 0.022 D363 SFPL FB312 C362 100 10V C365 0.1 C364 100 50V C363 0.01 C353 0.1 C417 100 10V C414 0.1 C354 0.022 C113 C123 0.01 0.1 POWER AMP IC306 CXD9702L D313 LI116 D323 LI116 D333 P6SMB39AT3 D343 P6SMB39AT3 L403 10µH C455 1 C456 1 C133 0.1 D354 SFPL C376 0.022 D364 SFPL FB313 C381 100 10V C384 0.1 C383 100 50V C382 C374 0.01 0.1 C423 100 10V C375 0.022 C418 C114 C124 0.1 0.01 0.1 POWER AMP IC307 CXD9702L D314 LI116 D324 LI116 D334 P6SMB39AT3 D344 P6SMB39AT3 L404 10µH C457 1 C458 1 C134 0.1 D355 SFPL C397 0.022 D365 SFPL FB318 C405 100 10V C404 0.1 C403 100 50V C402 C395 0.01 0.1 C425 100 10V C396 0.022 C424 C115 C125 0.1 0.01 0.1 POWER AMP IC309 CXD9702L D315 LI116 D325 LI116 D335 P6SMB39AT3 D345 P6SMB39AT3 L405 10µH C460 1 C459 1 C135 0.1 D356 SFPL C413 0.022 D366 SFPL FB320 C422 100 10V C421 0.1 C420 100 50V C419 C411 0.01 0.1 C427 100 10V C412 0.022 C426 C116 C126 0.1 0.01 0.1 POWER AMP IC311 CXD9702L D316 LI116 D326 LI116 D336 P6SMB39AT3 D346 P6SMB39AT3 L406 10µH C461 1 C462 1 C136 0.1 C162 0.1 C142 0.01 C161 0.1 C141 0.01 C164 0.1 C144 0.01 C163 0.1 C143 0.01 C168 0.1 C148 0.01 C167 0.1 C147 0.01 C166 0.1 C146 0.01 C165 0.1 C145 0.01 C170 0.1 C150 0.01 C169 0.1 C149 0.01 C172 0.1 C152 0.01 C171 0.1 C151 0.01 57 57 C181 0.01 C182 0.01 J401 SPEAKER FRONT L FRONT R WOOFER CENTER R111 100k C106 1 R112 100k R103 100k C102 1 R104 100k R110 100k C105 1 R109 100k Q103,104 OVER LOAD DETECT Q103 2SC2412 Q112 2SC2412 Q111 2SC2412 Q111,112 OVER LOAD DETECT Q104 2SC2412 Q110 2SC2412 D102 MA111-TX D106 MA111-TX Q109 2SC2412 Q109,110 OVER LOAD D105 DETECT MA111-TX REAR L REAR R R106 100k C103 1 R105 100k Q106 2SC2412 Q105 2SC2412 Q105,106 OVER LOAD DETECT D103 MA111-TX R107 100k C104 1 R108 100k Q107 2SC2412 Q108 2SC2412 Q107,108 OVER LOAD DETECT D104 MA111-TX R101 100k C101 1 R102 100k Q102 2SC2412 Q101 2SC2412 Q101,102 OVER LOAD DETECT D101 MA111-TX Q114 DTA114EK Q113 DTC124EKA R113 100k Q113,114 PROTECT DETECT HCD-C770/C990