Service Manual
Page 1
Hi-Fi Integrated Stereo Amplifier SERVICE MANUAL MODEL PMA-2000IVR INTEGRATED STEREO AMPLIFIER Some illustrations using in this service manual are slightly different from the actual set. 16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN Telephone: 03 (3837) 5321 X0141 337 NC 0204
Hi-Fi Integrated Stereo Amplifier SERVICE MANUAL MODEL PMA-2000IVR INTEGRATED STEREO AMPLIFIER Some illustrations using in this service manual are slightly different from the actual set. 16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN Telephone: 03 (3837) 5321 X0141 337 NC 0204
Service Manual
Page 8
Head Amp Limiter Amp BPF Detector & Comparator Integrator Hysteresis Comparator Vout Vcc GND GND Vcc Vout TRANSISTORS 2SA933S (S) 2SA988 (E/F) 2SA1145 (O/Y) 2SA1546 (M/L) 2SB1328 (P) 2SC1740S (S) 2SC1841 (E/F) 2SC2705 (Y) 2SC3421 (O/Y) 2SC4001 ... PNP Type NPN Type C R1 B R2 E R1 R2 DTA114ES 10kohm 10kohm R1 R2 DTC114ES 10kohm 10kohm DTC143ES 4.7kohm 4.7kohm DTC143ZS 4.7kohm 47kohm DTC144WS 47kohm 22kohm 8 PMA-2000IVR LB1639 (IC902) TOP VIEW VIN1 1 GND 2 VCONT 3 VIN2 4 8 VOUT1 7 VCC 6 N.C. 5 VOUT2 VOUT1 VOUT2 85 VREF BA4558 (IC701) NJM2082D (IC201) 7 VCC 3 VCONT ...
Head Amp Limiter Amp BPF Detector & Comparator Integrator Hysteresis Comparator Vout Vcc GND GND Vcc Vout TRANSISTORS 2SA933S (S) 2SA988 (E/F) 2SA1145 (O/Y) 2SA1546 (M/L) 2SB1328 (P) 2SC1740S (S) 2SC1841 (E/F) 2SC2705 (Y) 2SC3421 (O/Y) 2SC4001 ... PNP Type NPN Type C R1 B R2 E R1 R2 DTA114ES 10kohm 10kohm R1 R2 DTC114ES 10kohm 10kohm DTC143ES 4.7kohm 4.7kohm DTC143ZS 4.7kohm 47kohm DTC144WS 47kohm 22kohm 8 PMA-2000IVR LB1639 (IC902) TOP VIEW VIN1 1 GND 2 VCONT 3 VIN2 4 8 VOUT1 7 VCC 6 N.C. 5 VOUT2 VOUT1 VOUT2 85 VREF BA4558 (IC701) NJM2082D (IC201) 7 VCC 3 VCONT ...