SERVICE MANUAL CONTENTS 2. CD TEST 3. BLOCK DIAGRAM 4. SAFETY CHECK 5. CD PLAYER CHECKING PROCEDURE 6. TROUBLE SHOOTING 7. SCHEMATIC DIAGRAM 8. PCB LAYOUT 9. EXPLODE VIEW 10. BILL OF MATERIAL...
SPECIFICATIONS Power source AC 230V Load impedance 4 ohm Reference output 50 mW BAND: AM 1 kHz 30% MOD. Characteristic Unit Nominal Limit Frequency ±25 Range High 1645 ±30 Intermediate Frequency ± 2 20 dB S/N 1000 kHz 600 dB/M Sensitivity dB/M 1400 kHz...
Page 4
Item Unit Nominal Limit Frequency Response 100 Hz ±3 20kHz ±3 S/N W/IEC-A & LPF. Interruption µm 1000 Black Dot µm Eccentricity µm Channel Separation (W/Band Pass Filter)
SAFETY CHECKS Important Note!!! Do the following safety checks after servicing this unit. 1. Remove all the externally connected test equipment and wires before testing the unit. 2. Use the safety test circuit as shown below. 3. Plug the power cord or unit to be tested into the test receptacle. 4.
CD PLAYER CHECKING PROCEDURES 1) Test Point : VC, TS10. 2) Test Disc : Sony Test CD Type 3. 3) Test Equipment : Scope : DC 0.2 V 0.5 ms. 4) Test Mode : Play Sony CD, Type 3, Track 1, Press FF. (Fast Forward), Adjust VR401 Until A=B (as Figure Bellow).
TROUBLESHOOTING Circuit Symptom Cause and Remedy • General No sound Speakers are not connected: Check the speaker connection. • Wrong function is selected: Set switch to the proper position. • Defective volume control: Set the volume control to a proper sound level. •...
EXPLODE VIEW BOTTOM CABINET MID-CABINET TUNING GEAR FUNCTION KNOB FRONT CABINET SPEAKER CD DOOR DIAL DRUM LCD BRACKET PVC KNOB LCD LENS RING LCD LENS SPEAKER GRILL AC SOCKET BATTERY DOOR AC COVER CD KNOB SPEAKER CLIP CD DOOR LENS DUST PROOF COVER TRANSFORMER BATTERY TERMINAL...
Page 18
Touch Switch 6 x 6 x 5 Speaker 2.5" 4Ω3W CD Mechanism SANYO CD Mech. Rubber 20° (Yellow) CD mechanism Transformer EI-41 9V Current ≥800MA AC Socket with Switch 110/220 Switch SS12J01 Band Switch SK44D04GB Am Antenna 115:15 L:80 mm AC Cord CD Door Switch 04 Type...
Page 19
Dial Spring 2.0 dia. x 12 PVC Knob Screws 3 x 5 PM Antenna 3 x 10 PWA AC Socket 3 x 10 PA Transformer 2 x 8 PA CD x 4, spkr x 4, cab x 4, handle x 2 3 x 12 PA 2.6 x 12 PA Bottom...
Page 20
Poly Bag Export Carton Pin Wire 16P x 300 x 1.0mm CD to PCB 6P x 85mm x 2.0mm CD to PCB FCC Pins 19P x 100mm x 1.0mm LCD to PCB 3P x 250mm x 2.0mm 3P x 100mm x 2.0mm CD Function key to PCB 5P x 140mm x 2.5mm UL 2651 Aux to PCB...