Mitsubishi WS-73909 Service Manual Page 24
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Page 24
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
Circuit Adjustment Mode
Most of the adjustments can only be performed using the remote hand unit. Many of the adjustments must be
performed in both the 480i and 1080i modes. Video/Color adjustments must be performed in the 480i and
1080i modes, and data must be preset in the 480P (DVD) and VGA modes.
Note: Set the Remote Operational Mode to NetCommandTM. (Hold the Power button and press
9-3-5 in sequence.) This slows the remotes response and makes adjustments easier. When
adjustments are complete, set the Remote to its original Operational Mode.
A. Activating the Circuit Adjustment Mode
The current signal source determines if the
activated Adjustment Mode is 480i or 1080i.
1. Select the signal source (480i or 1080i).
2. Press the "MENU" button on a remote hand unit.
3. Press the number buttons "0", "1", "5", "7" in sequence. The
screen will change to the Adjustment Mode.
Note: Repeat steps 1 and 2 if the circuit
adjustment mode does not appear
on screen.
B. Selection of adjustment Functions and
Adjustment Items
To select an adjustment item in the circuit adjustment mode, first select the adjustment function that includes
the specific adjustment item to be selected. Then select the adjustment item. Refer to the following pages for
the listing of adjustment functions and adjustment items.
1. Press the "AUDIO" button on a remote hand unit to select an adjustment function. Each time the button
is pressed, the Function changes in the following sequence:
2. Press the VIDEO button to select a specific Adjustment Item. The Item number increases each time the
VIDEO button is pressed.
C. Changing Data
After selecting an adjustment Item, use the ADJUST UP/DOWN button to change data.
Press ADJUST DOWN to decrease the data value.
Press ADJUST UP to increase the data value.
D. Saving Adjustment Data
Press ENTER to save adjustment data in memory. The character display turns red for approximately one
second in this step.
Note: If the circuit adjustment mode is terminated without pressing ENTER, changes in adjustment data
are not saved.
VC JNGL
AUD SNTS MNTS
Adjustment Functions
Previous Models V19 Chassis
Video/Chroma VC
Jungle JNGL
Main Matrix MNTS
Sub Matrix SNTS
Audio AUD
Ad
j
ustment Function Name Chan
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es
CHASSIS
V19
MODE
0
ADJ ITEM
1 SCT 42 480i
SIGNAL
ABBREV. DATA
- MITSUBISHI ELECTRIC 1
- CONTENTS 3
- INTRODUCTION 5
- PRODUCT SAFETY NOTICE 5
- SAFETY PRECAUTIONS 6
- WS-65869 8
- WS-55859 11
- SERVICING THE DIAMONDSHIELD 14
- Side Molding Clips 14
- Main Chassis Removal 15
- PCB Locations 16
- Main Components Location 16
- CRT REPLACEMENT 18
- 2. Installation of the CRT 19
- Test Equipment 21
- Test Signal 21
- Initial Setup 22
- C. A/V Memory 23
- 3. Error Codes 23
- Circuit Adjustment Mode 24
- 1 SCT 42 480i 24
- E. COARSE CONV (Press 5) 26
- F. FINE CONV (Press 4) 26
- E2PROM Replacement 27
- List of Adjustment Items 27
- VC Function (Video Color) 27
- JNGL Function (Jungle) 27
- MNTS Function (Main Decoder) 28
- CONV GREEN Items 29
- CONV RED Items 29
- CONV BLUE Items 29
- AUDIO Function 31
- Item # Abbrev. Data 31
- GRADATION SCALE 36
- Raster Color Selection 38
- Color Raster Activation Code 38
- Red MENU-0-1-5-9-1 38
- Green MENU-0-1-5-9-2 38
- Blue MENU-0-1-5-9-3 38
- Procedure 39
- CHIP PARTS REPLACEMENT 45
- REPLACEMENT PARTS 46
- CRT ASSEMBLIES 47
- MISCELLANEOUS 47
- INTEGRATED CIRCUITS 48
- TRANSISTORS 48
- TRANSFORMERS 52
- VARIABLE RESISTORS 52
- RESISTORS 52
- CAPACITORS AND TRIMMERS 54
- SWITCHES 56
- PRINTED CIRCUIT BOARDS 57
- COSMETIC PARTS 57
- ACCESSORIES 58
- STANDBY SUPPLIES 61
- REGULATOR 61
- SWITCHED 62
- SUPPLIES 62
- VIDEO/COLOR 64
- A/V SWITCH CIRCUIT 64
- PCB-SIGNAL Y/C PATH 65
- SYNC PATH 66
- DEFLECTION CIRCUIT 67
- SOUND CIRCUIT 68
- CONVERGENCE 69
- CONTROL CIRCUIT 70
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