– 4 –
Section
Title
Page
Section
Title
Page
3-12.
Brake Arm S, Ratchet Brake T,
Tension Coil Spring (Brake), SBR Slider and FP-248
Flexible Board (Condensation Sensor) ................. 5-14
3-13.
Reel Table Assembly, Idler Gear A Assembly
and Idler Gear B ..................................................... 5-14
3-14.
Reel Base Retainer, Reel Base T Assembly and
Reel Base S Assembly (Reel Lock Release Block
and Reel Lock Release Spring) ............................. 5-15
3-15.
Cam Motor, Motor Holder ....................................... 5-15
3-16.
TG2/7 Arm Block, TG2/7 Band Block and
Tension Coil Spring (TG2)/(TG7) ........................... 5-16
3-17.
Sub-slider Arm, Sub-slider, Encoder Gear,
Main Cam Gear, Coupling Gear, Sub-cam Gear,
Pinch Slider and Loading Arm Assembly ............... 5-17
3-18.
Main Slider, Main Slider Arm and Pendulum
Stopper Assembly .................................................. 5-19
3-19.
MD-76 Board and Encoder Retainer ..................... 5-20
3-20.
Components of GL Arm S/T Assembly
(GL Arm Assembly, GL Helical Torsion Spring,
GL Gear) ................................................................. 5-21
3-21.
Components of MIC Base Assembly
(FP-104 Flexible Board, MIC Base) ....................... 5-21
3-22.
Components of Drum Assembly
(Motor FPC Assembly, Elastic Connector) ............ 5-22
3-23.
Components of Pinch Arm Assembly (Tape Retainer,
Compression Coil Spring) ...................................... 5-22
3-24.
Components of TG2/7 Arm Assembly (ET Magnet,
Magnet Holder) ...................................................... 5-22
5-1-4. Check and Adjustment ........................................... 5-23
4-1.
Reel Table Height Check and Adjustment ............. 5-24
4-2.
TG1/8 Height Check and Adjustment .................... 5-24
4-3.
TG2/7 Height Check and Adjustment .................... 5-25
4-4.
FWD/RVS Position Check and Adjustment ........... 5-25
4-5.
Electric Tension Regulator Check and Adjustment
of TG2/7 Arm .......................................................... 5-26
4-6.
FWD/RVS Back Tension Check and Adjustment .. 5-27
4-7.
Preparation for Adjustment and
Tape Path Check .................................................... 5-28
4-8.
Track Adjustment and Check
(Checking the RF Waveform) ................................ 5-29
4-9.
Track Check ........................................................... 5-29
4-10.
CUE/REV Check .................................................... 5-30
4-11.
Curl Check and Adjustment ................................... 5-30
4-12.
Rising Check .......................................................... 5-31
5-2.
SERVICE MODE ......................................................... 5-32
5-2-1. Adjusting Remote Commander .............................. 5-32
1.
Used Adjustment Remote Commander ................. 5-32
2.
Precautions Upon Using the Adjusting Remote
Commander ............................................................ 5-32
5-2-2. Data Processing ..................................................... 5-33
5-2-3. Service Mode ......................................................... 5-34
1.
Setting the Test Mode ............................................ 5-34
2.
Emergence Memory Address ................................. 5-34
3.
EMG Code (Emergency Code) .............................. 5-35
4.
MSW Code ............................................................. 5-35
5.
Bit Value Discriminatiion ........................................ 5-36
6.
Record of Use Check ............................................. 5-37
5-3.
VIDEO SECTION ADJUSTMENTS ............................ 5-38
3-1.
Preparations Before Adjustment ............................ 5-38
3-1-1. Equipment Used ..................................................... 5-38
3-1-2. Connection of Equipment ....................................... 5-39
3-1-3. Checking the Input Signals .................................... 5-40
1.
S VIDEO Input ........................................................ 5-40
2.
VIDEO Input ........................................................... 5-40
3-1-4. Adjustment Tapes ................................................... 5-41
3-1-5. Input/output Level and Impedance ........................ 5-42
3-2.
System Control System Adjustments .................... 5-43
1.
Initializing the C, D, E Page Data .......................... 5-43
2.
Input of C Page Initial Data .................................... 5-43
3.
Input of D Page Initial Data .................................... 5-43
4.
Input of E Page Initial Data .................................... 5-43
5.
Modification of C, D, E, Page Data ........................ 5-43
6.
C Page Table .......................................................... 5-44
7.
D Page Table .......................................................... 5-45
8.
E Page Table .......................................................... 5-45
9.
Node Unique ID No. Input ...................................... 5-46
3-3.
Servo and RF System Adjustments ....................... 5-48
1.
Capstan FG Adjustment (HD-024 Board) .............. 5-48
2.
PLL f
0
Pre-adjustment (RP-234 Board) ................. 5-48
3.
Switching Position Adjustment (HD-024 Board) .... 5-48
4.
RF-AGC Adjustment (RP-234 Board) .................... 5-48
5.
CLK DELAY and AEQ Adjustment
(RP-234 Board) ...................................................... 5-49
6.
PLL f
0
Final Adjustment (RP-234 Board) ............... 5-49
3-4.
Video System Adjustments .................................... 5-49
3-4-1. JC-20 Board Adjustment ........................................ 5-49
1.
VFD SPCK Adjustment (JC-20 Board) .................. 5-49
2.
A/D Converter Reference Voltage
Adjustment (1) (JC-20 Board) ................................ 5-49
3.
A/D Converter Reference Voltage
Adjustment (2) (JC-20 Board) ................................ 5-49
4.
Y Signal Clamp Reference Voltage Adjustment
(JC-20 Board) ......................................................... 5-50
5.
CR Signal Clamp Reference Voltage Adjustment
(JC-20 Board) ......................................................... 5-50
6.
CB Signal Clamp Reference Voltage Adjustment
(JC-20 Board) ......................................................... 5-50
7.
AFC Preliminary Adjustment (JC-20 Board) .......... 5-50
8.
AFC Picture Frame Adjustment (JC-20 Board) ..... 5-50
9.
AFC Adjustment (JC-20 Board) ............................. 5-50
10.
Playback Y Level Adjustment (JC-20 Board) ........ 5-51
11.
Playback C Level Adjustment (JC-20 Board) ........ 5-51
3-4-2. VD-031 Board Adjustment ..................................... 5-52
1.
Decoder Free Run Adjustment (NTSC)
(VD-031Board) ....................................................... 5-52
2.
Decoder Free Run Adjustment (PAL)
(VD-031Board) ....................................................... 5-52
3.
Y/C Separation Adjustment (VD-031 Board) ......... 5-52
4.
Recording Signal Level Adjustment
(VD-031 Board) ...................................................... 5-54
3-4-3. General Adjustment ................................................ 5-56
1.
HUE Adjustment (NTSC) ....................................... 5-56
2.
HUE Adjustment (PAL) ........................................... 5-56
3-5.
AUDIO System Adjustments .................................. 5-57
1.
Playing Level Check ............................................... 5-57
2.
E-E S/N Check ....................................................... 5-57
3.
E-E Distortion Check .............................................. 5-58
3-6.
Arrangement Diagram for Adjustment Parts .......... 5-60
6.
REPAIR PARTS LIST
6-1.
EXPLPODED VIEWS .................................................. 6-1
6-1-1. Overall Assembly ................................................... 6-1
6-1-2. Chassis Assembly-1 ............................................... 6-2
6-1-3. Chassis Assembly-2 ............................................... 6-3
6-1-4. Mechanism Deck Assembly (Drum Assembly) ...... 6-4
6-1-5. Mechanism Deck Assembly (Gear, Arm) ............... 6-5
6-1-6. Mechanism Deck Assembly (Motor, MD Board) .... 6-6
6-1-7. Mechanism Deck Assembly
(Cassette Compartment) ........................................ 6-7
6-2.
ELECTRICAL PARTS LIST ......................................... 6-8
Hardware List ........................................................................ 6-29
Accessories & Packing Materials .......................................... 6-30
