Sony HCD-EC68P Service Manual - Page 37

6-14. SCHEMATIC DIAGRAM - PANEL Board - • See page 39 for waveforms. • See page 42 for IC Block Diagrams. • See page 43 for IC Pin Function Description. HCD-EC68P/EC78P 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 PANEL BOARD A CN301 31P TP301 R301 100 O-TU-CE 1 TP302 R302 100 O-TU-DI 2 TP303 R303 100 O-TU-CLK 3 TP304 R304 100 I-TU-ANSD 4 TP305 R305 100 I-TU-DO 5 TP306 R306 100 I/O-I2C-DATA 6 TP307 R307 100 B O-SW-ON/I-TP-STATE 7 TP308 R308 100 I/O-I2C-CLK 8 TP309 R309 100 5V-ON/TP-REC-MUTE 9 TP310 R310 100 O-POWER 10 R311 100 I-DMP-DET/O-USB-RST 11 L O-CD-M-MUTE 12 TP312 TP313 R312 100 R313 100 MAIN O-AMP-ON 13 TP314 R314 100 BOARD O-CD-SBSY 14 (2/3) TP315 R315 100 C CN803 (Page 32) O-CD-REQ 15 O-CD-CCE 16 TP316 TP317 R316 100 R317 100 O-CD-BUCK 17 TP318 R318 100 I/O-BUS3 18 TP319 R319 100 I/O-BUS2 19 TP320 R320 100 I/O-BUS1 20 TP321 R321 100 I/O-BUS0 21 TP322 R322 100 O-CD-RST 22 TP323 R323 100 D I-P-MONI 23 TP324 R324 100 O-CD-ON 24 TP325 D-GND 25 TP326 V-STBY 26 TP327 M-GND 27 TP344 R433 470 I-DMP-TXD 28 TP345 R434 470 I-DMP-5V-DET 29 TP346 R435 470 O-DMP-RXD 30 O-TU-CE O-TU-DI O-TU-CLK I-TU-ANSD I-TU-DO I/O-I2C-DATA O-SW-ON/I-TP-STATE I/O-I2C-CLK 5V-ON/O-TP-REC-MUTE O-POWER I-DMP-DET/O-USB-RST O-DR-MUTE O-AMP-ON O-CD-SBSY I-REQ O-CD-CCE O-CD-BUCK I/O-BUS3 I/O-BUS2 I/O-BUS1 I/O-BUS0 O-CD-RST I-P-MONI O-CD-ON I-DMP-TXD I-DMP-5V-DET O-DMP-TXD LCD301 LIQUID CRYSTAL DISPLAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 LED-STBY C301 0.1 R325 10 R326 100 LED301 1L0341Y23E0CA602 / STANDBY 0.1 Q301 2SC3052F-T1-LF LED DRIVE R327 100 0.7 R328 10k Q302-304 +4V REGULATOR 8.1 3.9 R329 2.2k Q302 KTA1271Y-AT 7.5 R331 100k R332 10k 5.7 4.5 Q303 2SC3052F-T1-LF 3.9 D303 MC2836 R336 10k C306 470 6.3V R334 10k R335 22k C304 0.1 0 R337 220 I-RST I-HOLD 3.1 C305 10 50V D301 MAZ8043GMLS0 R333 100k C302 10 50V 0 0.7 R330 680 Q304 2SC3052F-T1-LF 3.3 0 Q305 2SC3052F-T1-LF C303 10 50V Q306 RT1N441C-TP-1 Q305,306 VOLTAGE DETECT D302 MA2J1110GLS0 C321 0.1 C317 1000p O-AMP-ON O-POWER O-CD-ON I-SW3/CDM-CLOSE I-SW2 I-SW1/CDM-OPEN O-M1+/CDM-M+ I-RMC O-M1-/CDM-MO-M2+ E (EC78P: UK) NC 31 F R338 2.2 R339 2.2 R340 4.7k C308 0.1 7.1 7.1 Q307 ISA1235 0 5.1 0 R343 470k R342 220k Q307-310 REGULATOR 8.1 Q309 KTA1273 Q310 2SC3052 7.7 5.1 R344 4.9 2.7k R421 10k D305 MA2J1110GLS0 C309 22 50V 4.9 R346 47k R347 470 M2M2+ 4.9 4.8 Q311 2SA1365 4.8 4.8 Q315 2SC3440 0 R348 4.9 47k 4.8 Q312 2SA1365 4.8 R349 470 4.8 Q316 2SC3440 0 R350 47k 4.9 4.8 R351 470 M1- Q313 2SA1365 4.8 M1+ 4.8 Q317 2SC3440 0 R352 4.9 47k 4.8 Q314 2SA1365 4.8 R353 470 4.8 Q318 2SC3440 0 O-M2- I/O-BUS0 I/O-BUS1 I/O-BUS2 I/O-BUS3 I-CHACK I-STOCK O-DR-MUTE I-REQ 31 R361 47k R357 47k R358 47k C310 0.1 R354 47k R341 33k Q308 RT1N441C R345 4.7k C343 22 50V R355 1k R356 1k R359 1k R360 1k O-CD-BUCK O-CD-CCE O-CD-RST O-M1+/CDM-M+ O-M2+ O-M1-/CDM-M- G Q311-318 LED-STBY MOTOR DRIVE I-DMP-TXD H CD MECHANISM DECK I CN302 13P M2- 1 M2+ 2 M1- 3 M1+ 4 SW-COM 5 SW3 6 SW1 7 I-CHACK 8 SW2 9 I-CLOSE 10 I-STOCK 11 I-OPEN 12 NC 13 TP328 TP329 TP330 TP331 TP333 TP334 TP335 TP336 TP337 TP38 TP339 TP340 M2- C311 0.1 M2+ M1- C312 0.1 M1+ R362 22k R363 22k R364 22k R365 22k R367 22k I-DMP-5V-DET O-M2- R369 1k R370 1k I-SW3/CDM-CLOSE I-SW1/CDM-OPEN R371 1k R372 1k R373 0 R374 1k R375 0 I-CHACK I-SW2 I-STOCK C345 0.047 C344 0.047 R366 10k R368 10k R428 47k R426 100k I-CLOSE/OPEN (EC68P/EC78P: US, CND) IC303 BA6956AN COM0 COM1 COM2 COM3 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG32 SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 R448 10k C346 0.047 C347 470p C316 0.047 C315 0.047 C314 0.047 C355 4700p X302 6MHz C354 4700p X301 32.768kHz C319 18p C320 22p R396 330k C328 0.047 3.1 3.3 AVCC 2.9 I-TU-DO 3 O-USB-DI/5V-ON/O-TP-REC-MUTE AVSS 1.5 I-P-MONI 3.3 I-KEY1 3.3 I-KEY2 0.9 I-TU-ANSD 0 O-USB-SEL1_2/O-SW-ON/I-TP-STATE 3.3 I-KEY-WAKE-UP/VOL 3.3 I-HOLD 0 O-CD-SBSY FB301 C342 1000p VSS 3.1 VCC 1.3 SEG24 1.3 SEG23 1.3 SEG22 1.3 SEG21 1.3 SEG20 1.3 SEG19 1.3 SEG18 1.3 SEG17 1.3 SEG16 1.3 SEG30 1.3 SEG29 1.3 SEG28 1.3 SEG27 1.3 SEG26 1.3 SEG25 1.1 X0 1.3 X1 1.3 32 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 SEG31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1.3 SEG32 3.1 O-AMP-ON 3.1 O-POWER 0 O-CD-ON 3.3 I-3CD-SW3/O-CDM-CLOSE 0 I-3CD-SW2/NC 0 I-3CD-SW1/O-CDM-OPEN 0 O-3CD-M1+/O-CDM-M1+ 3.1 I-RMC 0 O-3CD-M1-/O-CDM-M1- 0 O-3CD-M2+/NC 0 O-3CD-M2-/NC 1 X0A 1.4 X1A 3.1 VCC VSS 0 I/O-CD-BUS0 0 I/O-CD-BUS1 0 I/O-CD-BUS2 0 I/O-CD-BUS3 0 I-3CD-CHACK 3.3 I-3CD-STOCK 0 O-DR-MUTE 0 I-REQ 3.1 O-CD-BUCK 3.1 O-CD-CCE 3.1 O-CD-RST 3.1 O-LED-STBY 3.3 I-USB-TXD/ 3.3 I-DMP-TXD I-USB-DO/ I-DMP-5V-DET IC301 SYSTEM CONTROLLER IC301 MB90F831PF-G-SPE1 1.3 SEG15 1.3 SEG14 1.3 SEG13 1.3 SEG12 1.3 SEG11 1.3 SEG10 1.3 SEG9 1.3 SEG8 1.3 SEG7 1.3 SEG6 1.3 SEG5 1.3 SEG4 1.3 SEG3 1.3 SEG2 VSS 3.1 VCC 1.3 SEG1 1.3 SEG0 1.3 CMO3 1.3 CMO2 1.3 COM1 1.3 COM0 2.6 VLCD 0 O-TU-DI 0 O-TU-CLK 0 O-TU-CE 3.1 I-RST 3.1 MD0 3.1 MD1 0 MD2 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 I-1CD-CLOSE_OPEN/NC I/O-I2C-CLK GND O-USB-RXD/ O-DMP-RXD 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 3.3 I-DMP-DET/O-USB-RST 3 I-MODEL 2.8 I-SUFFIX 1 3.3 I/O-I2C-DATA 3.3 R400 1k R401 1k C340 0.1 C356 0.1 W301 (CHASSIS) C341 0.1 O-TU-DI O-TU-CLK O-TU-CE I-RST R402 100k SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0 COM3 COM2 COM1 COM0 R419 27k R429 10k C338 1000p R420 100k C332 0.01 C330 0.1 C348 470p (EC78P) R390 10k (EC68P/EC78P: US, CND) R392 10k R446 4.7k R447 4.7k D304 MA2J1110GLS0 3 VREF 4.5 OUT2 RNF 4.5 OUT1 7.5 VM 7.5 VCC 0 FIN GND 0 RIN I-MODEL I-SUFIX O-DMP-RXD I-TU-DO 5V-ON/O-TP-REC-MUTE I-P-MONI I-KEY1 I-KEY2 I-TU-ANSD O-SW-ON/I-TP-STATE I-KEY-WAKE-UP/VOL I-HOLD O-CD-SBSY I-DMP-DET/O-USB-RST I-MODEL I-SUFIX I-CLOSE/OPEN I/O-I2C-DATA I/O-I2C-CLK J CN311 5P M+ 1 Q M- 2 DGND 3 MOTOR BOARD CLOSE SW 4 K CN001 (Page 39) OPEN SW 5 C353 0.1 D307 MA2J1110GLS0 R441 39k 123456789 R442 22k D306 1N4002B C357 22 50V R443 10k C352 10 50V C351 0.1 R445 4.7k R444 4.7k IC303 MOTOR DRIVER IC B/D O-M1-/CDM-MO-M1+/CDM-M+ (EC68P: AUS/EC78P: UK) R389 ∗ R391 ∗ ∗R389 1k (EC68P/EC78P: US, CND) 5.6k (EC78P: UK) ∗R391 1k (EC78P: UK) 2.2k (EC68P: AUS) (Page 38) B KEY POWER BOARD W401 L A KEY CD BOARD (Page 38) M CN306 2P KEY-0 11 GND 2 CN303 2P KEY-1 1 GND 2 TP341 TP348 TP343 R418 15k SW305 TUNING + R417 6.8k R416 3.9k R406 1.5k SW304 FUNCTION R415 2.7k R414 2.2k R405 1.2k SW303 R384 10k - TUNING R413 1.5k R412 1.2k R383 10k I-KEY2 R387 1k I-KEY1 R386 1k R382 10k R376 10k R385 1k R422 4.7k I-KEY-WAKE-UP/VOL R379 68k R378 33k R377 10k IC302 REMOTE CONTROL RECEIVER IC302 NJL24H400B 3 1 2 3.1 VCC 1 3.1 OUT 3 GND 2 I-RMC R381 10k C313 0.22 R380 470 SW318 PLAY MODE TUNING MODE SW317 DSGX SW316 EQ SW315 - SW314 + SW313 SW312 SW311 CD SW319 DISPLAY S301 ROTARY ENCODER VOLUME HCD-EC68P/EC78P 37 37