Pioneer HTZ-7 VisionPlus Service Manual - Page 98

HTZ-7, HTZ-C7, HTZ-SW7 6.2 TUNER SECTION 6.2.1 FM TUNER SECTION Set the mode selector to FM BAND. Connect the wiring as shown in Fig. 1. Step No. Adjustment Title FM SG (1kHz, ±75kHz dev.) Reception Frequency (MHz) Level (dBµV) Frequency Adjustment Display Location Specifications Front End 1 Sensitivity 98 0 - 30 98 MHz L6402 T6401 Adjust so that the DC voltage between the IC6201Pin 20 and GND becomes at maximum level. 2 TUNED IND. Lighting Level 98 18 ± 2 98 MHz VR6201 Adjust so that the indicator of TUNED IND. starts to light up. Note: Before adjusting, make sure there is no gap between L6401 and L6402. If there is a gap between them, bring them into contact with each other first, and then make adjustments. 6.2.2 AM TUNER SECTION Set the mode selector to AM BAND. Connect the wiring as shown in Fig. 1. Step No. Adjustment Title 1 Front End Sensitivity AM SG (400Hz, 30% Mod.) Frequency Level Reception Frequency Adjustment Location (kHz) (dBµV/m) Display Specifications 999*1 35 - 45 999 kHz*1 T6201 Adjust so that the DC voltage between the IC6201Pin 20 and GND becomes at maximum level. ∗1: For the area using 10 kHz step, frequencies should be 1000 kHz. 60cm Loop Antenna AM SG Center Center AM antenna terminal MPX SG FM SG PRODUCT DC Voltmeter FM75Ω antenna terminal Fig. 1 AM and FM Adjustment Wiring Diagram FM/AM TUNER MODULE AM Antenna Terminal FM Antenna Terminal SIDE A YELLOW BLACK AXX7041 L6401 T6401 L6402 T6201 IC6201 Pin 20 VR6201 Fig. 2 Adjustment Points 98