SONY SRF-H3 free download

File name SRF-H3.pdf

SRF-H3 SERVICE MANUAL Ver 1.0 2000. 07 Australian Model SPECIFICATIONS Frequency range: FM: 87.6 ­ 108 MHz AM: 530 ­ 1 710 kHz Power output: 5.0 mW + 5.0 mW (at 10 % harmonic distortion) Headphone type: Dynamic Power requirements: 1.5 V DC, one size AAA (R03) battery Mass: Approx. 132 g (4.7 oz) incl. a battery Design and specifications are subject to change without notice. FM STEREO/AM HEADPHONE RADIO SECTION 1 GENERAL This section is extracted from instruction manual. A Head band Light reflector Support band Getting Started Installing the Battery (See Fig. B) While pressing the battery compartment lid, slide it to open. 2 Insert one size AAA (R03) battery (not supplied) with correct polarity. 3 To close the lid, press and slide the lid down until it clicks. 1 FM flexible antenna Battery compartment Driver units When to replace the battery Replace the battery when the sound becomes weak or distorted. Remove the old battery and insert a new one. TUNE POWER Battery life (approximate hours) Sony alkaline size AAA (LR03) FM reception AM reception 80 100 Sony size AAA (R03) 40 50 Dial scale VOL BAND Notes on the battery · Align the battery correctly. · The dry battery cannot be charged. · To avoid damage from possible battery leakage, remove the battery when unit will not be used for a long time. SENS Wearing the Radio 1 Pull out the support band fully from B AAA (R03) x 1 2 the headband. Adjust the headband and the support band to fit your head. Note on the support band (See Fig. A) When the radio not in use, put the support band back by pushing down both ends as illustrated and push it back underneath the headband. Insert the # side of the battery first. Note on the light reflector (See Fig. A) This reflector reflects a car light at night for your safety. Playing the Radio 1 2 Set POWER to ON. Set BAND to select FM or AM. For FM, set SENS to LOCAL if interference is prevalent and reception is too strong. Under normal condition, set it to DX. 3 4 Turn TUNE (tuning) to tune in a station. Adjust the volume using VOL. To turn off the radio Set POWER to OFF. SAFETY CHECK-OUT After correcting the original service problem, perform the following safety checks before releasing the set to the customer. 1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and bridges. Check the interboard wiring to ensure that no wires are "pinched" or contact high-wattage resistors. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement. Look for parts which, through functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement. 5. Check the B+ voltage to see it is at the values specified. 6. Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270°C during repairing.