Sony SAC5B free download

File name Sony-SAC5B actspk.pdf

SA-C5B SERVICE MANUAL Ver 1.0 2001. 07 AEP Model UK Model Australian Model E Model · SA-C5B is the speaker system in CMT-C5. SPECIFICATIONS Speaker system Speaker units Two-way, bass reflex system 9 cm dia., cone type woofer 2.5 cm dia., balance drive tweeter 6 ohms Approx. 149 Ч 248 Ч 220 mm Approx. 1.9 kg net per speaker Rated impedance Dimensions (w/h/d) Mass SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. SPEAKER SYSTEM 9-873-219-01 2001G1600-1 © 2001.7 Sony Corporation Home Audio Company Shinagawa Tec Service Manual Production Group SA-C5B SERVICE NOTE [When bringing in the equipment for service] The notice is shown on both Warranty Card and Repair Service column of operation manual, telling to bringing in both of the equipment (HCD-C5) and speaker system (SA-C5B) together to service station when service (repair) is needed. [How to check speaker only] When only speaker is brought in for service, check its operations by supplying both the power and the signal to the AMP board of the speaker as shown below. Check method : 1.Perform connection as shown below. + + COM +5V GND +20V -20V CN801 AMP board 9 RELAY 8 SP-GND 7 6 +B 5 POWER-GND 4 -B 3 SHIELD GND 2 1 PRE-SIGNAL DC regulated power supply 1 LED (BLUE) DC regulated power supply 2 Speaker Audio signal generator AUDIO SIGNAL GND · DC regulated power supply 1 (+5 V) It functions to turn on the speaker relay driver. · DC regulated power supply 2 (±20 V) It is desirable to use the DC regulated power supply of the dual tracking type that can supply its output voltages in two polarities of positive and negative polarities. However, the two units of the DC regulated power supply that supplies only a single output voltage can also be used. (See the figure below.) CN801 DC regulated power supply + 7 6 5 4 3 +20V -20V DC regulated power supply + - +B POWER-GND -B · Audio signal generator Output frequency : 1 kHz Output voltage : 100mV p-p or less Output impedance : 600 2.Turn on the main power of the DC regulated power supply 2. Then turn on the main power of the DC regulated power supply 1 (+ 5 V). After that, input the output signal of the audio signal generator as shown. 3.Check that the LED (D831, D832 (BLUE)) turns on and the audio signal can be heard from the speaker. Notes : 1 For the speaker cord, disconnect it from the speaker or leave it open. 2 Be careful not to apply an excessive input audio signal to the speaker. 3 If the power voltage is less than +/- 14 V, the speaker relay will not be activated. [Caution when removing the front panel] The special screwdriver (Sony part code No. 3-985-911-01) of star type (six star type) is required to remove the front panel. 2 SECTION 1 DIAGRAMS 1-1. PRINTED WIRING BOARD SA-C5B