Sharp HT-CN300S Service Manual - Page 14

HT-CN300 A B C AMP. PWB-B3 (1/2) PROTECT FAN_CONT POW_LEVEL 22K THERMO FM SIGNAL R140 100K R141 100K R260 100 C263 0.001 R271 2.2K R270 820 C B Q260 2SC2878 B E R272 100 C264 1/50 (N.P.) R273 22K C254 0.001 R259 2.2K R258 820 R261 22K C B Q250 2SC2878 B E C255 1/50 (N.P.) C265 22/35 (N.P.) R274 1K 8 +INA R275 270 7 -INA R276 R262 R263 22K 1K 220 13 +INB 12 -INB C256 R264 22K 22/35 (N.P.) IC203 LM4766T POWER AMP. VccB GNDA MuteA VEE GNDB MuteB VEE 11 MUTEB 6 MUTEA 14 NC1 9 NC2 OUTA 3 OUTB 1 R282 10K VCCA 2 GNDA 5 GNDB 10 VCCB 15 VEE 4 D E F CNP122 FW12 1 FL_PRIOUT 1 A_GND 2 FR_PRIOUT 3 SR_PRIOUT 4 A_GND 5 SL_PRIOUT 6 G CT_PRIOUT 7 A_GND 8 SW_PRIOUT 9 CNP711 A_GND F_RLY 10 11 S_RLY 12 TO C_RLY W_RLY 13 14 DSP PWB -20DBATT 15 P23 12 - F FAN_CONT THERMO 16 17 PROTECT 18 POW_LEVEL 19 19 C241 R142 0.001 100K R247 2.2K C B E R248 R246 100 820 Q240 2SC2878 B C232 0.001 C242 1/50 (N.P.) R235 2.2K C Q230 B 2SC2878 B R143 100K R234 820 E R236 100 C233 1/50 (N.P.) CNP203 1 2 3 4 5 6 7 8 CNS204 BI204 TERMINAL PWB-B5 IC202 LM4766T POWER AMP. R249 22K GNDA 5 GNDB 10 VCCB 15 VEE 4 VCCA 2 1 2 3 C243 R250 4 5 6 7 22/35 (N.P.) 1K 8 +INA R251 220 7 -INA GNDA OUTA 3 8 R252 22K MuteA VEE C207 0.22 R237 22K VccB C245 C206 0.22 0.22 C236 0.22 C234 22/35 R238 R239 1K 13 +INB 220 12 -INB R240 22K GNDB MuteB VEE OUTB 1 9 NC2 6 MUTEA 14 NC1 11 MUTEB R253 4.7 R241 4.7 R291 10K C170 100/10 R144 100K C219 0.001 R223 2.2K R222 820 R211 2.2K C210 0.001 R145 100K R210 820 B C Q220 2SC2878 B R225 E 22K R224 100 C220 1/50 (N.P.) B C Q210 2SC2878 B E R212 100 R213 22K C211 1/50 IC201 LM4766T POWER AMP. GNDA 5 GNDB 10 VCCB 15 VEE 4 VCCA 2 C221 22/35 (N.P.) C212 22/35 (N.P.) R226 R227 R228 R214 R215 R216 1K 8 +INA 220 7 -INA 22K 1K 13 +INB 220 12 -INB 22K VccB GNDA MuteA VEE GNDB MuteB VEE OUTA 3 OUTB 1 6 MUTEA 14 NC1 9 NC2 11 MUTEB R290 10K D272 DS1SS133 D251 D252 DS1SS133 DS1SS133 Q271 C B KTC3199 GR E Q270 KTC3199 GR CE B C272 47/50 R168 56K H • NOTES ON SCHEMATIC DIAGRAM can be found on page 9. 1 2 3 4 5 6 Figure 14 SCHEMATIC DIAGRAM (1/17) - 14 -