Read Sony GV-D300 Service Manual online
— 4 —
• EX-34 (DC-AC Inverter)
Schematic Diagram ....................................... 4-89
• EX-34 (Multi Connector, Back Light Power)
Printed Wiring Board .................................... 4-93
• FK-71 (Control Switch Block) ................................... 4-95
5.
ADJUSTMENTS
5-1.
Adjustment Preparations ................................................. 5-1
1-1.
Preparations Before Adjustment ...................................... 5-1
1-1-1. List of Service Tools ........................................................ 5-1
5-2.
5-2.
Mechanism Section Adjustment ...................................... 5-2
2-1.
Operating Without Cassette ............................................. 5-2
2-2.
Tape Path Adjustment ...................................................... 5-2
1.
Preparations for Adjustment ............................................ 5-2
5-3.
Electrical Adjustments ..................................................... 5-3
3-1.
Preparations Before Adjustments .................................... 5-3
3-1-1. Equipment Required ........................................................ 5-3
3-1-2. Precautions on Adjusting ................................................. 5-4
3-1-3. Adjusting Connectors ...................................................... 5-4
3-1-4. Connecting the Equipment .............................................. 5-5
3-1-5. Checking the Input Signals .............................................. 5-6
3-1-7. Input/Output Level and Impedance ................................. 5-6
3-1-6. Alignment Tape ............................................................... 5-6
3-2.
3-1-2. Precautions on Adjusting ................................................. 5-4
3-1-3. Adjusting Connectors ...................................................... 5-4
3-1-4. Connecting the Equipment .............................................. 5-5
3-1-5. Checking the Input Signals .............................................. 5-6
3-1-7. Input/Output Level and Impedance ................................. 5-6
3-1-6. Alignment Tape ............................................................... 5-6
3-2.
Initialization of D, C Page Data ...................................... 5-7
1.
Initializing the D Page Data ............................................ 5-7
2.
Modification of D Page Data ........................................... 5-7
3.
D Page Table .................................................................... 5-7
4.
Initializing the C Page Data ............................................. 5-9
5.
Modification of C Page Data ........................................... 5-9
6.
C Page Table .................................................................... 5-9
3-3.
System Control System Adjustment .............................. 5-11
1.
Battery End Adjustment (CB-61 Board) ....................... 5-11
3-4.
Servo System Adjustments ............................................ 5-12
1.
T Reel FG Duty Adjustment (RJ-77 Board) .................. 5-12
2.
Switching Position Adjustment (RJ-77 Board) ............. 5-12
3-5.
Video System Adjustments ............................................ 5-13
3-5-1. RF Block Adjustments ................................................... 5-13
1.
1.
Recording Current Adjustment (RJ-77 Board) .............. 5-13
2.
PLL F
0
Adjustment (RJ-77 Board) ................................ 5-13
3.
CLK DELAY Adjustment (RJ-77 Board) ..................... 5-14
4.
AGC Center Level Adjustment (RJ-77 Board) .............. 5-14
5.
AEQ Adjustment (RJ-77 Board) ................................... 5-15
6.
PLL Capture Range Adjustment (RJ-77 Board) ............ 5-15
3-5-2. Clock Adjustments ........................................................ 5-16
1.
1.
IC1900 27MHz XTAL F
0
Adjustment (RJ-77 Board) ... 5-16
2.
IC1900 VCO Operation Check (RJ-77 Board) .............. 5-16
3.
IC6101 41.85MHz VCO Operation Check
(RJ-77 Board) ................................................................ 5-16
(RJ-77 Board) ................................................................ 5-16
3-5-3. Base Band Block Adjustments ...................................... 5-17
1.
1.
NPS PLL Adjustment (CB-61 Board) ........................... 5-17
2.
NPS Y Level Adjustment (CB-61 Board) ...................... 5-17
3.
VIDEO Output Y Level Adjustment (CB-61 Board) .... 5-18
4.
S VIDEO Output Y Level Adjustment
(CB-61 Board) ............................................................... 5-18
(CB-61 Board) ............................................................... 5-18
5.
AGC Adjustment (CB-61 Board) .................................. 5-19
6.
NPS B-Y Level Adjustment (CB-61 Board) ................. 5-19
7.
NPS R-Y Level Adjustment For PAL Model
(CB-61 Board) ............................................................... 5-20
(CB-61 Board) ............................................................... 5-20
8.
VIDEO Output Burst Level Adjustment
(CB-61 Board) ............................................................... 5-20
(CB-61 Board) ............................................................... 5-20
9.
NPS R-Y Level Adjustment For NTSC Model
(CB-61 Board) ............................................................... 5-20
(CB-61 Board) ............................................................... 5-20
10.
S VIDEO Output Chroma Level Adjustment
(CB-61 Board) ............................................................... 5-21
(CB-61 Board) ............................................................... 5-21
11.
AFC TC Adjustment (CB-61 Board) ............................. 5-21
12.
AFC F
0
Adjustment (CB-61 Board) .............................. 5-22
13.
Decoder APC Adjustment (CB-61 Board) .................... 5-22
14.
Decoder ACC Adjustment (CB-61 Board) .................... 5-22
15.
Decoder HUE Adjustment (CB-61 Board) .................... 5-23
16.
Y AD Clamp Adjustment (CB-61 Board) ..................... 5-23
17.
CR AD Clamp Adjustment (CB-61 Board) ................... 5-24
18.
CB AD Clamp Adjustment (CB-61 Board) ................... 5-24
19.
Y AD Level Adjustment (CB-61 Board) ....................... 5-25
20.
CR AD Adjustment (CB-61 Board) ............................... 5-25
21.
CB AD Level Adjustment (CB-61 Board) ..................... 5-26
3-5-4. BIST Check ................................................................... 5-27
1.
1.
Playback System Check ................................................ 5-27
2.
Recording System Check .............................................. 5-28
3-6.
IR Transmitter Adjustments ........................................... 5-29
1.
IR Video Carrier Frequency Adjustment
(CB-61 Board) .............................................................. 5-29
(CB-61 Board) .............................................................. 5-29
2.
IR Video Deviation Adjustment (CB-61 Board) ........... 5-29
3.
IR Audio Deviation Adjustment (CB-61 Board) ........... 5-30
3-7.
Audio System Adjustments ........................................... 5-31
1.
Playback Level Check ................................................... 5-31
2.
Overall Level Characteristics Check ............................. 5-31
3.
Overall Separation Check .............................................. 5-31
4.
Overall Noise Level Check ............................................ 5-32
3-8.
LCD System Adjustment (GV-D900/D900E) ............... 5-33
1.
LCD Initial Data Input .................................................. 5-33
2.
PANEL –19V Adjustment (CB-61 Board) .................... 5-34
3.
Horizontal Position Adjustment (CB-61 Board) ........... 5-34
4.
Bright Adjustment (CB-61 Board) ................................ 5-35
5.
Contrast Adjustment (CB-61 Board) ............................. 5-35
6.
Color Adjustment for NTSC Model (CB-61 Board) ..... 5-36
7.
HUE Adjustment for NTSC Model (CB-61 Board) ...... 5-36
8.
Burst Cleaning Adjustment For PAL Model
(CB-61 Board) ............................................................... 5-37
(CB-61 Board) ............................................................... 5-37
9.
Color Adjustment For PAL Model (CB-61 Board) ....... 5-37
10.
V-COM Adjustment (CB-61 Board) ............................. 5-38
11.
White Balance Adjustment (CB-61 Board) ................... 5-38
5-4.
Service Mode ................................................................. 5-39
4-1.
Adjustment Remote Commander .................................. 5-39
1.
Using the Adjustment Remote Commander .................. 5-39
2.
Precautions Upon Using the
Adjustment Remote Commander .................................. 5-39
Adjustment Remote Commander .................................. 5-39
4-2.
Data Process .................................................................. 5-40
4-3.
Service Mode ................................................................. 5-41
1.
Setting the Test Mode .................................................... 5-41
2.
Emergence Memory Address ........................................ 5-41
2-1.
EMG Code (Emergency Code) ..................................... 5-41
2-2.
MSW Code .................................................................... 5-42
3.
Bit Value Discrimination ............................................... 5-43
4.
Switch Check (1) ........................................................... 5-43
5.
Switch Check (2) ........................................................... 5-44
6.
Record of Use Check ..................................................... 5-44
6.
REPAIR PARTS LIST
6-1.
Exploded Views ............................................................... 6-1
6-1-1. Cabinet Assembly ............................................................ 6-1
6-1-2. LCD Window Cabinet, Cabinet (Upper) Assembly ........ 6-2
6-1-3. Mechanism Deck Assembly ............................................ 6-3
6-1-4. Cassette Compartment and Drum Assembly ................... 6-4
6-1-5. LS Chassis Block Section ................................................ 6-5
6-1-6. Mechanism Chassis Block Section-1 .............................. 6-6
6-1-7. Mechanism Chassis Block Section-2 .............................. 6-7
6-2.
6-1-2. LCD Window Cabinet, Cabinet (Upper) Assembly ........ 6-2
6-1-3. Mechanism Deck Assembly ............................................ 6-3
6-1-4. Cassette Compartment and Drum Assembly ................... 6-4
6-1-5. LS Chassis Block Section ................................................ 6-5
6-1-6. Mechanism Chassis Block Section-1 .............................. 6-6
6-1-7. Mechanism Chassis Block Section-2 .............................. 6-7
6-2.
Electrical Parts List ......................................................... 6-8
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