Pioneer A-209R Manual de servicio - Página 27
Navegue en línea o descargue pdf Manual de servicio para Amplificador Pioneer A-209R. Pioneer A-209R 35 páginas. Stereo amplifier
También para Pioneer A-209R: Manual de instrucciones (12 páginas), Manual de servicio (6 páginas)
Imprimir página
6. ADJUSTMENT
6.1 IDLE CURRENT ADJUSTMENT
¶ CAUTION : Heatsinks' (Q323–Q326) DC level is equal to +B or -B.
Don't touch them or you will be electric shocked.
1. Connect the measuring instrument as shown in Fig.6-1. (R373 or R374)
2. Turn the POWER switch to ON.
3. Adjust VR301 (VR302) so that the voltage between both sides of R373 (R374) becomes 10mV ± 1mV.
4. Ages for 5 minutes.
5. Adjust VR301 (VR302) so that the voltage between both sides of R373 (R374) becomes 11mV ± 1mV.
DC Voltmeter
DC Voltmeter
R373
R375
Heat Sink
VR301
Heat Sink
Fig.6-1 Adjustment Method
AF ASSY
SIDE A
Heat Sink
R374
R376
VR302
Heat Sink
CN202
A-209R, A-209
27