Sony SLV-E120AE, Service Manual

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1. GENERAL
Step 1 Setting up the remote commander ..................... 1-1
Step 2 Connecting the VCR .......................................... 1-1
Step 3 Tuning the TV to your VCR ............................... 1-1
Step 4 Selecting a language ........................................... 1-2
Step 5 Tuning the VCR to TV Channels ....................... 1-2
Step 6 Setting the Clock ................................................ 1-2
Additional Tuning Instructions ..................................... 1-3
Setting a Satellite Tuner ................................................ 1-3
Playing a Tape ............................................................... 1-3
Recording TV Programmes ........................................... 1-4
Recording TV Programmes using Video Plus + ........... 1-4
Playing/Searching at Various Speeds ............................ 1-5
Setting the Timer Manually ........................................... 1-5
Recording TV Programmes using the Quick Timer ...... 1-6
Checking/Cancelling Timer Settings ............................. 1-6
Searching using the index function ............................... 1-6
Editing with another VCR ............................................. 1-7E
Adjusting the Picture ..................................................... 1-7E
Visual index ................................................................... 1-7E
2. DISASSEMBLY
1-1. Removal of Cabinet, Mechanism Unit and Main
Board ..................................................................... 2-1
Removing the Cabinet Parts .................................. 2-1
Removing the Mechanism Main Unit and the
CP-1 PWB Assembly ............................................. 2-1
l-2. Temporarily Setting Up and Connecting
CP-1 PWB Assembly ............................................. 2-3E
1-3. Installation of the Front Panel ................................ 2-3E
3. DIAGRAMS
Circuit Boards Location ................................................ 3-1
Overall wiring Diagram ................................................ 3-3
Mechanism Connection Diagram .................................. 3-5
Video Circuit Diagram .................................................. 3-6
System Control & Servo Circuit Diagram ................... 3-9
Audio Circuit Diagram .................................................. 3-12
Terminal & Input/ Output Selector Circuit Diagram
(SLV-E270 & E280 Series) ........................................... 3-14E
4. SCHEMATIC DIAGRAMS AND PRINTED
WIRING BOARDS
CP-1 Board (PW-A) Power Supply Circuit Diagram .... 4-1
CP-1 Board (AD-A) Terminal & Selector
(SLV-E270 & E280 Series) ........................................... 4-3
CP-1 Board (AD-A) Terminal Circuit Diagram
(SLV-E120AE/E220 Series) .......................................... 4-5
CP-1 Board (VA-A) Video & Audio Circuit Diagram
(SLV-E270 Series/E280CP/VC1/VC2) ......................... 4-7
CP-1 Board (VA-A) Video & Audio Circuit Diagram
(SLV-E120AE & E220 Series) ...................................... 4-9
CP-1 Board (VA-A) Video & Audio Circuit Diagram
(SLV-E280UX) .............................................................. 4-11
Video Circuit Waveforms .............................................. 4-13
VP-1 Board Video Pre-Amp circuit Diagram ............... 4-14
CP-1 Board (SV-A) Servo Circuit Diagram .................. 4-16
Servo Circuit Waveforms .............................................. 4-18
CP-1 Board (SY-A) System Control, Timer & Tuner
Circuit Diagram (Except SLV-E220UY/E280UX) ....... 4-19
IC 301 System Control, Timer & Tuning Control MPU Pin
Functions Table ............................................................. 4-20
CP-1 Board (SY-A) System Control, Timer & Tuner
Circuit Diagram (SLV-E220UY/E280UX) ................... 4-21
TM-1 Board Operation Key Circuit Diagram ............... 4-27
TABLE OF CONTENTS
Section Title Page
______ ____ ____
Section Title Page
______ ____ ____
TM-2 Board Circuit Diagram ........................................ 4-29
A7101 Display (FLD) Grid/Anode Assignment
Drawing & Table ........................................................... 4-30
TM-9 Board PDC/VPS (SLV-E220VP1/E270 &
E280 Series) .................................................................. 4-31E
5. ADJUSTMENTS
1. Maintaining and Checking the Mechanism ............... 5-1
l -1. Regular Checks and Maintenance Items ............... 5-1
1-1-1. Regular Checks ................................................ 5-1
1-1-2. Cleaning ............................................................ 5-1
1-2 Service Tools ........................................................... 5-2
1-2-1. Service Tools ................................................... 5-2
1-2-2. Using the Relay Cable (VHJ-0106) .................. 5-3
2. An Overview of the Mechanism ................................ 5-3
2-1. Names of the Main Parts ........................................ 5-3
2-1-1. Cassette Mechanism Assembly ........................ 5-3
2-1-2. Top View .......................................................... 5-4
2-1-3. Under Side ........................................................ 5-4
2-2. An Overview of the Mechanism Modes ................ 5-5
2-2-1. Mechanism Mode Switching Table .................. 5-5
2-2-2. Movement Check List for the Main Parts of the
Mechanism ........................................................ 5-6
2-2-3. How to Check the Mechanism
Mode Position ................................................... 5-6
2-2-4. Self-Diagnosis Display ..................................... 5-6
3. Disassembling the Main Parts of the Mechanism ..... 5-7
3-1. How to Make the Mechanism Move ...................... 5-7
3-1-1. How to Operate the Loading Motor Using
A DC Voltage Supply ....................................... 5-7
3-1-2. Operating the Loading Motor
by the Manual Method ...................................... 5-7
3-1-3. Making the Mechanism Move
Using the Manual Method ................................ 5-7
3-2. Mechanism Unit ..................................................... 5-8
3-3. Cassette Drive Mechanism ..................................... 5-8
3-3-1. Cassette Mechanism Assembly ........................ 5-8
3-3-2. Cassette Drive Gear .......................................... 5-9
3-3-3. Door opener, Under Frame and Stand L ........... 5-9
3-3-4. Start Rack Gear and Front Rack Gear .............. 5-10
3-4. Cleaner Roller Assembly ....................................... 5-10
3-5. Cylinder (DRUM) .................................................. 5-11
3-5-1. Upper Cylinder Assembly (UPPER DRUM) ... 5-11
3-5-2. Cylinder Motor (ROTOR and STATOR) .......... 5-12
3-5-3. Cylinder Assembly ........................................... 5-12
3-6. FE Head and ACE Head ......................................... 5-13
3-6-1. Audio R/P Head Assembly (ACE HEAD) ........ 5-13
3-6-2. Full Erase Head ................................................ 5-13
3-7. Capstan Motor ........................................................ 5-14
3-7-1. Capstan Motor .................................................. 5-14
3-7-2. Capstan Brake Assembly .................................. 5-14
3-8. Loading Motor Assembly and
Worm Gear Assembly ............................................ 5-15
3-9. Pinch Roller Pressure Mechanism ......................... 5-15
3-9-1. Pinch Roller Lever Assembly ........................... 5-15
3-9-2. Pinch Lift Cam and Pinch Cam Gear ............... 5-16
3-10. L Guide Lever Assembly and
Load Lever Assembly .......................................... 5-17
3-11. BT Lever Assembly ............................................. 5-17
3-12. Reel Drive Mechanism ......................................... 5-18
3-12-1. Reel belt, Reel Pulley, Friction Gear
Assembly and Clutch Change Lever ............... 5-18
3-12-2. Clutch Mounting Assembly ............................ 5-18
3-12-3. S Soft Lever, Supply Reel Assembly
and S Reel Gear .............................................. 5-18