Sony ta sp 55 service manual
This is the 20 pages manual for sony ta sp 55 service manual.
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Extracted text from sony ta sp 55 service manual (Ocr-read)
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2 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. TABLE OF CONTENTS 1. SERVICE NOTE ............................................................... 3 2. GENERAL ......................................................................... 4 3. DISASSEMBLY 3-1. Case ..................................................................................... 5 3-2. Front Panel Assy ................................................................... 5 3-3. HP Board, Panel Board ......................................................... 6 4. DIAGRAMS 4-1. Block Diagram ...................................................................... 9 4-2. Printed Wiring Board – Main Section –.............................. 10 4-3. Schematic Diagram – Main Section –................................ 11 4-4. Printed Wiring Board – Panel Section –............................. 12 4-5. Schematic Diagram – Panel Section –................................ 13 4-6. Printed Wiring Board – VOLSEL Section –....................... 14 5. EXPLODED VIEWS 5-1. Case and Front Panel .......................................................... 15 6. ELECTRICAL PARTS LIST ........................................ 16MODEL IDENTIFICATION MODEL PARTS No. AEP, AED, UK model 4-229-700-0s MY, SP model 4-229-700-2s HK model 4-229-700-3s KR model 4-229-700-4s -Abbreviation AED : North European model MY : Malaysia model SP : Singapore model HK : Hong Kong model KR : Korea model Parts No.
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3 CD Text Display - This unit displays CD text. Text is displayed for the first 50 track only and will not be displayed from the 51st track onwards. Do not suspect a fault in this case. In some cases, some special characters will not be displayed and may be replaced by other characters. Do not suspect a fault in this case. Cold Reset - The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer. Procedure : 1. When the power ON, press the ?/1 button (TA) while pressing the TUNING MODE button (ST) and ML buttons (CDP) together. 2. COLD RESET is displayed on the fluorescent indicator tube and reset is executed. Hot Reset - This mode reset the preset data kept in the memory. The hot reset mode functions same as if the power cord is plugged in and out. Procedure : 1. When the power ON, press the ?/1 button (TA) while pressing the TUNING MODE button (ST) and lm buttons (CDP) together. 2. Turn off the unit and reset is executed. GC Test Mode Procedure : 1. When the power ON, press the ?/1 button (TA) while pressing the TUNING MODE button (ST) and PLAY MODE buttons (CDP) together. 2. Fluorescent indicator tube are all turned on. 3. Press TUNING MODE button (ST) to enter the model destination indecation mode. SP55 CE2 appears. 4. Every pressing of TUNING MODE button (ST) changes the display in the following order. MC Version t CD Version t ST Version t TC Version t TA Version t TM Version t model destination display. 5. Press DISPLAY button (ST) and the date appears as 00615a Every pressing of DISPLAY button (ST) changes the display in the Version display and model destination display. 6. Press TUNER/BAND button (ST) to enter the key check mode. 7. In the key check mode, the fluorescent indicator tube displays Key 0 Vol 0. Each time a button is pressed, Key value increases. However, once a button is pressed, it is no longer taken into account. Vol Value increases like 1, 2, 3 ... if rotating VOLUME knob (TA) in the clockwise direction, or decreases like 0, 9, 8 ... if rotating in the counterclockwise diretion. 8. To exit from this mode, press three buttons in the same procedure as step 1, or disconnect the power cord. SECTION 1 SERVICING NOTE MC Test Mode Procedure : 1. When the power ON, press the ?/1 button (TA) while pressing TUNING MODE button (ST) and REPEAT button (CDP) together. 2. Frame of the MD mark and the CD mark flash, and BASS/TRE FLAT appears for a moment. 3. When the VOLUME knob (TA) is turned clockwise, VOLUME MAX appears for a moment. 4. When the VOLUME knob (TA) is turned counterclockwise, VOLUME MIN appears for a moment. 5. Select the function TAPE using the FUNCTION knob (TA). Set the test tape AMS-110A or AMS-120. 6. Press DIRECTION button (TC) to enter either j (loop) or h (two way). 7. Press the CD SYNC REC button (TC) to start the AMS test. 8. Number of AMS signals is counted during the AMS test and the message EDG# (# means a number) appears. When the test tape either AMS-110A or AMS-120 is used, the AMS signal is detected twice before shut off. 9. When the AMS test ends, either OK or NG appears. 10. To exit the MC test mode, either press the ?/1 button (TA)or perform the cold reset as described above. (FWD) REW (Shut off) (FWD) FF AMS (FWD) REW AMS END(Shut off) (Shut off) This unit cannot be repaired by itself. When repairing, connect the whole system except for the speaker.