Fisher PHDTA 300 M Service Manual

This is the 18 pages manual for Fisher PHDTA 300 M Service Manual.
Read or download the pdf for free. If you want to contribute, please mail your pdfs to info@audioservicemanuals.com.

Page: 1 / 18
left right
Fisher PHDTA 300 M Service Manual

Extracted text from Fisher PHDTA 300 M Service Manual (Ocr-read)

Page 1

- 1 - - Pickup that emits a laser beam is used on this CD section. CAUTION : USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. LASER OUTPUT ................ 0.6 mW Max. (CW) WAVE LENGTH ................. 790 nm LASER BEAM SAFETY PRECAUTION IC BLOCK DIAGRAM & DESCRIPTION CAUTION -“ INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM. ADVARSEL -“ USYNLIG LASER STRĂ…LING VED Ă…BNING, NĂ…R SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDGĂ… UDS ÆTTELSE FOR STRĂ…LING. VARNING -“ OSYNLIG LASER STRĂ…LNING NĂ„R DENNA DEL Ă„R Ă–PPNAD OCH SPĂ„RR Ă„R URKOPPLAD. STRĂ…LEN Ă„R FARLIG. VORSICHT -“ UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN DECKEL GEĂ–FFNET UND WENN SICHERHEITSVERRIEGELUNG ĂśBERBRĂśCKT IST. NICHT, DEM STRAHL AUSSETZEN. VARO -“ AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NĂ„KYMĂ„TTĂ–MĂ„LLE LASERSĂ„TEILYLLE. Ă„LĂ„ KATSO SĂ„TEESEEN. 123456789101112 PW GND PV CC1 VIN1 VR1 VC1 VIN2 PV CC2 PW GNDPW GND PV CC4 VIN4 SV CC1 SGND V IN3 PV CC3 PW GND 24 23 22 21 20 19 18 17 16 15 14 13 FUNCTION Input for CH2 Non-inverted output for CH2 Supply terminal of output stage for CH2 Inverted output for CH2 Power GND Power GND Inverted output for CH3 Supply terminal of output stage for CH3 Non-inverted output for CH3 Input for CH3 Supply terminal of small signal GND Small signal GND Input for CH4 Non-inverted output for CH4 Supply terminal of output stage for CH4 Inverted output for CH4 Power GND SYMBOL V IN2 OUT(+)2 PV CC2 OUT(-)2 PW GND PW GND OUT(-)3 PV CC3 OUT(+)3 V IN3 S GND S V CC VIN4 OUT(+)4 PV CC4 OUT(-)4 PW GND TERMINAL NO. 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 SYMBOL PW GND OUT(-)1 PV CC1 OUT(+)1 V IN1 VRI VCI TERMINAL NO. 1 2 3 4 5 6 7 24 13 12 1 IC803 TA2092N (Power Driver)

Page 2

- 2 - TUNER ADJUSTMENTS IC BLOCK DIAGRAM & DESCRIPTION 16 17 18 FEO FEN SEB 19 VRO 20 RFRP 21 BTC 22 RFCT 23 PKC 24 RFRPIN 25 RFGO 26 GVSW 27 AGCIN 28 RFO 29 GND 30 RFN215 14 13SBAD TEO TEN 12 2VRO 11TEB 10 SEL 9LDO 8MDI 7TNI 6TPI 5FPI 4FNI 3GMAD 2RFGC 1Vcc AGC Amp.BOTTOM PEAK3 STATE DET. I-I I-I 10pF 15pF 40pF 15pF 3pF 10pF 3pF 36pF 40pF SW1 SW3SW2 IC801 TA2153FN (RF AMP)