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ST-SE570 SERVICE MANUAL AEP Model UK Model Ver 1.0 2001.04 SPECIFICATIONS FM tuner section AM tuner section General Frequency range Power requirements 230 V AC, 50/60 Hz 87.5 - 108.0 MHz Frequency range (50 kHz step) 522 - 1,611 kHz...
AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH DISASSEMBLY SONY PARTS WHOSE PART NUMBERS APPEAR AS 2-1. Disassembly Flow ............4 SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- 2-2. Case (407026) ..............4 LISHED BY SONY.
ST-SE570 SECTION 1 This section is extracted from instruction manual. GENERAL LOCATION OF CONTROLS – Front Panel – 2 3 4 5 AUTO BETICAL SELECT qk (7, 12) MEMORY 4 (8, 11) BAND qg (9, 10, 12) MENU 0 (9, 11, 14) CHARACTER 7 (11) Numeric buttons qf (7–9)
ST-SE570 SECTION 2 DISASSEMBLY • This set can be disassembled in the order shown below. 2-1. DISASSEMBLY FLOW 2-2. CASE (407026) (Page 4) 2-3. MAIN BOARD (Page 5) Note: Follow the disassembly procedure in the numerical order given. 2-2. CASE (407026)
ST-SE570 SECTION 3 TEST MODE 1. Circuit Check Mode Set to the reception frequency that the circuit can STEREO RDS stations. (Set the input level to above 70 dB.) This enables circuit check to be performed in any of the reception modes-FM, AM (MW, LW). Set to a desired band before setting the test mode.
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ST-SE570 3. Entering the Factory Preset (In case perform just to write memory of the Factory Preset.) 1. Turn OFF the power. 2. While pressing 3 and AUTO-BETICAL SELECT together, turn ON POWER . 4. Forced RESET (Used to delete the contents of Factory Preset when it is written into the preset memory.) Clears all the RAMs and sets the initial state 1.
ST-SE570 SECTION 5 DIAGRAMS 5-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • Circuit Boards Location (In addition to this, the necessary note is printed in each block) Note on Printed Wiring Board: Note on Schematic Diagram: TRANSFORMER board •...
ST-SE570 • IC Block Diagrams 5-6. IC PIN FUNCTION DESCRIPTION – MAIN Board – • DISPLAY BOARD IC701 (µPD780205GF-040-3BA) IC201 LA1235 Pin No. Pin Name Description IC901 LA5667 — Power supply terminal (+5V) — Not used (open) MUTING — Not used (open)
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ST-SE570 41, 42 IS5, IS4 Setting terminal for the model 43 to 45 IS3, IS2, IS1 Setting terminal for the destination — Power supply terminal (+5V) 47 to 78 P1 to P32 Segment drive signal output to the fluorescent indicator tube (FL701) VLOAD —...
ST-SE570 SECTION 6 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark may have some difference from the original are seldom required for routine service.
ST-SE570 6-3. CHASSIS SECTION PT901 TB101 The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark...
ST-SE570 SECTION 7 ELECTRICAL PARTS LIST AC SW DISPLAY NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark parts list may be different from the parts speci- are seldom required for routine service.
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ST-SE570 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision...
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