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| 7 |
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| 8 |
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D |
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| VPOS |
| D |
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| R319 |
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| 100R SM |
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| R315 |
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| R316 |
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| R300 |
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| 100R SM |
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| 100R SM |
| PRE DRIVER |
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| 10K SM |
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| TR310 |
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| TR300 |
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| TR301 |
| FMMT497 |
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| FMMT597 |
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| FMMT597 |
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| R301 |
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+ |
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| 10K SM |
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C300 | DZ300 |
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| R321 |
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| TR302 |
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100U EL | 15V 350MW SM |
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| TR309 | 22R SM |
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| FMMT597 |
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| TR321 | FMMT497 |
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| FMMT597 | R338 |
| OUTPUT STAGE |
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| R329 | R305 | VI PROTECT |
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| C307 | 150R SM |
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| D301 |
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| 4K7 SM | 10K SM | SIGNAL TO MICRO |
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| TP307 |
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0V_HF |
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| R333 |
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| TR318 |
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| R334 | BAS16W SM |
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| VIPROT |
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| 3K3 SM |
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| SAP15N |
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| 22K SM |
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| TR311 |
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| 100P SM |
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| R306 | + C305 | DZ305 |
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| TP305 | R341 |
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| FMMT497 | C317 | DC SERVO | BOOTSTRAP |
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| R347 | TR312 | D303 | R349 |
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| TR313 | 10K SM | 10U EL | 4V7 350MW SM |
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| 330R SM |
| FMMT497 | 1N4003F |
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| FMMT497 |
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| R345 100R SM |
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| 100R SM |
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| 470N PE |
| + C302 |
| R325 |
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| R343 |
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| C310 |
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| IC300B |
| 6R330 | 100U EL 100V | ADJ BIAS | 1K0 SM |
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| 100R SM | 0R0 SM |
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| 100N SM |
| 7 |
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| 0V_HF |
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| 1M0 SM |
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| + C303 |
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| 5 |
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| PL300 |
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| 0V_SIG |
| R328 | TL072CD | 0V_SIG |
| RV300 | R340 | 1 |
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| 100U EL |
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| 100R PSET | 100K SM | 2 |
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| R351 |
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| 4K7 SM |
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| R352 |
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C |
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| TP302 |
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| R331 | 470R 2W | D300 |
| MEASURE |
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| 5R6 2W CF |
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| C |
INPUT FILTER | V TO I AMP |
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8 |
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| BAS16W SM |
| BIAS |
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| R324 |
| 0V_SIG |
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| 1K5 SM |
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| L300 |
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INPUT | 3 |
| IC300A |
| TP304 | R332 |
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| OUTPUT |
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1K0 SM |
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| 2U2H LAC SMALL |
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| 2 |
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| 470R 2W |
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| DC OFFSET SIGNAL |
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DZ302 |
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| 1K8 SM |
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4V7 350MW SM |
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| TL072CD |
| R322 | R353 |
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| TO MICRO |
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| R327 |
| 4 |
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| 22R SM | R355 |
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| DCPROT |
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| R350 |
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| 22K SM |
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| 6K8 SM |
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| R303 |
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| 5R6 2W CF |
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| + C318 |
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| + C304 |
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DZ303 | C316 |
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| TR322 | C312 |
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| 10K SM |
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| ZOBEL NETWORK |
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| R337 | FMMT497 | 10U EL |
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| 100U EL |
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| TR305 |
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4V7 350MW SM | 470P PPW |
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| C311 |
| 10N SM |
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| DC OFFSET |
| C319 |
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| 22R SM |
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| FMMT597 |
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0V_SIG |
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| 100N PC | + C306 |
| R326 |
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| R344 | R346 |
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| R304 | DETECTION |
| 100N PE |
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| TP303 |
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| 1K0 SM |
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| 100R SM | 0R0 SM |
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| 10K SM |
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| C313 |
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0V_SIG | C309 |
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| R354 |
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| TR304 |
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| 0V_SIG |
| 100U EL 100V |
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| R348 | D304 |
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| R308 |
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| 0V_LS |
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| 100N SM |
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| 1K0 SM | BOOTSTRAP |
| TP306 | R342 |
| FMMT597 |
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| TR303 |
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| 100R SM |
| 1N4003F |
| R302 |
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| 22K SM |
| 100N SM |
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| 0V_HF |
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| FMMT597 |
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| 330R SM |
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| 10K SM |
| R307 |
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| C308 |
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| R336 |
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| TP308 |
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| 10K SM |
| 0V_HF |
| 0V_LS |
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| C314 |
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| R335 |
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| TR319 |
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| 22K SM | D302 |
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| TR316 |
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| 100N SM |
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| 3K3 SM | R339 |
| SAP15P |
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| BAS16W SM |
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| FMMT497 |
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| 100P SM |
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| DZ306 |
| R310 |
| R313 |
| C320 |
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| DZ301 | 0V_SIG |
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| TR320 | 150R SM |
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| R314 |
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| FMMT497 |
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| OUTPUT STAGE |
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| 4V7 350MW SM | 4K7 SM |
| 10K SM | 100U NP | 10K SM |
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+ | 15V 350MW SM |
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| C315 |
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0V_HF |
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| TR306 | R323 |
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| 100N SM |
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C301 |
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| 0V_HF |
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100U EL |
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| FMMT597 | 22R SM |
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| 0V_HF |
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| TR314 |
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| TR315 |
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| R309 | FMMT497 |
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| FMMT497 |
| TR307 |
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| 10K SM |
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| FMMT597 |
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| TR308 |
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| NPN CURRENT MIRROR |
| PRE DRIVER |
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| FMMT597 |
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| R317 |
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| R318 |
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| R311 |
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B |
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| 100R SM |
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| 100R SM |
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| 10K SM |
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| B |
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| TR317 |
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| R320 |
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| R312 | FMMT497 |
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| VNEG |
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A |
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| A |
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| DRAWING TITLE |
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| AP85 third channel - output stage |
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| Circuit Diagram |
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| Notes: |
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| 01_1101 | JR | 4/6/01 | DC OFFSET CHANGES |
| 1.1 | ||
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| A & R Cambridge Ltd. |
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| Pembroke Avenue |
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| 01_1018 | JR | 30/1/01 | PRODUCTION ISSUE |
| 1.0 | |
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| Denny Industrial Centre |
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| ECO No. | INITIALS | DATE |
| DESCRIPTION OF CHANGE | ISSUE | |
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| Waterbeach |
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| Filename |
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| Date Printed |
| Drawn by: | Sheet 2 of 2 | DRAWING NO. L911C2 |
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| Cambridge CB5 9PB |
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| L911C2_1.1.SCH |
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| J Reckless |
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| 7 |
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