Pioneer IS-21T Service Manual - Page 2

1 2 3 4 XC-IS21T 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM MECHA ASSY A DECK ASSY REC/PB HEAD CN2301 PB L 3 GND 2 J Q2301 IC2301 (2SK373) (NJM4558M) DS PB 3+ 2- 1+ G VR2301 + (PB LEVEL) (PB) 3 (REC) PB IN L ERASE HEAD CN2302 1 ERASE 2 GND IC2401 (BA4558MD) +1 3 (REC) 2 VR2801 (BIAS) + + IC2201 (HA1236AF) DOLBY NR 8 6 REC OUT 1 REC IN L L2201 MPX VR2401 (REC LEVEL) + LINE OUT L (PB) J2201 5 REC L (REC) 4 PB L (PB) V+12M 5 1 6 L2801 BIAS OSC 3 Q2801 (2SC1815) BIAS Q2802 7 V+12M B (2SC1815) Cro2 PICKUP ASSY (2/2) CD MECHA ASSY TFDR (TS) TRDR (TS) FFDR (FS) FRDR (FS) CN1101 1 T+ 2 F3 F+ 4 T- (SM) CD ASSY F V+5CDM V+5UN J101 V+5UN 3 V+5CD V+5CDM 4 (FS) (FS) (TS) (TS) (SM) (SM) (CS) (CS) SL/SP MOTOR C CN1301 + SL - 1 SL + 2 SL - + SP - 5 SP + 6 SP - CN1101 12 LD ON 9 LD PD 7 PDIC PD1 6 PDIC PD2 15 F 8E PICKUP ASSY (1/2) 14 VC IC1301 BA5970FP GNDCDM V+5CD TFDR TRDR FFDR FRDR (SM) (CM) (CM) (TS) (TS) (FS) (FS) (FS) (TS) IC1101 CXA1821M GND (FS) (TS) CD LD ON IC1201 CXD2587Q V+5CD V+5CD 8 GNDCDM 5 CD L 10 (CD) D. OUT D. OUT 7 (D.O) GND CN10 15 FRONT PANEL JOG CN10 15 V+12TX CN105 6 V+12TX ASSY K KEY CN150 JOG 10 KEY 1 17 CN50 10 44 17 38 13 60 AC_PLUS IC5501 PDG242A 49 LCD_CE Q5501 16 GNDU GND 7 GNDU V+5.6U 8 AC 15 V+5.6U D KEY 2 13 KEY 3 15 TX CONNECT 13 39 SYSTEM U-COM 48 LCD_CLK 8 50 LCD_DATA 9 15 40 4 LCD_POW 14 U-COM IC5503 PDG243 LCD U-COM CN90 1 15 CN80 1 29 LCD ASSY D TUNER MODULE CN6201 CN161 ASSY J60 J60 ASSY TX LcH 7 7 TX LcH 7 7 A (TX) B (TX) C (TX) CN105 TX LcH 1 (TX) TX+5V 2 2 TX+5V 2 2 TX+5V 7 16 1 2 3 4