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TRINITRON® COLOR TELEVISION
SERVICE MANUAL
DX-1A CHASSIS
MODEL NAME
REMOTE COMMANDER
DESTINATION
CHASSIS NO.
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 6/200
1
ALL REVISIONS AND UPDATES TO THE ORIGINAL MANUAL ARE APPENDED TO THE END OF THE PDF FILE.
REVISION DATE
REVISION TYPE
SUBJECT
6/200
1
No revisions or updates are applicable at this time.
KV-38DRC2
RM-Y184
E
SCC-S49C-A
KV-38DRC2C
RM-Y184
E
SCC-S49D-A
9-965-912-01


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TRINITRON
® COLOR TELEVISION
SERVICE MANUAL
DX-1A CHASSIS
MODEL NAME
REMOTE COMMANDER
DESTINATION
CHASSIS NO.
KV-38DRC2
RM-Y184
E
SCC-S49C-A
KV-38DRC2C
RM-Y184
E
SCC-S49D-A
Self Diagnosis
Supported model
9-965-912-01
KV-38DRC2
RM-Y184


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KV-38DRC2 / 38DRC2C
TABLE OF CONTENTS
Specifications ................................................................................. 4
Warnings and Cautions .................................................................. 5
Safety Check-Out ........................................................................... 6
Self-Diagnostic Function................................................................. 7
1. Disassembly
1-1. Rear Cover Removal .............................................................. 9
1-2. Chassis Assembly Removal................................................... 9
1-3. Service Position ..................................................................... 9
1-4. Picture Tube Removal .......................................................... 10
Anode Cap Removal Procedure ................................................... 10
2. Set-Up Adjustments
2-1. Beam Landing ...................................................................... 11
2-2. V-PIN and V-CEN Adjustment .............................................. 12
2-3. Convergence ........................................................................ 12
2-3.1. Vertical and Horizontal Static Convergence ............. 12
2-3.2. Operation of BMC (Hexapole) Magnet ..................... 12
2-3.3. TLH Plate Adjustment .............................................. 12
2-3.4. Screen Corner Convergence ................................... 13
2-3.5. Dynamic Convergence Adjustments ........................ 13
2-4. Focus Adjustment................................................................. 13
2-5. Screen (G2).......................................................................... 13
2-6. Picture Quality Adjustments ................................................. 14
2-6.1. Video Input - Two Picture Sub Contrast
Adjustment ............................................................... 14
2-6.2. Video Input - Sub Hue/Sub Color Adjustment.......... 14
2-6.3. RF Input - Two Picture Sub Contrast Adjustment ..... 15
2-6.4. RF Input - Sub Hue/Sub Color Adjustment .............. 15
2-7. White Balance (CRT) and Sub Bright Adjustment ............... 16
2-8. Raster Center Adjustment.................................................... 16
2-9. Picture Distortion Adjustments............................................. 16
2-9.1. NTSC (DRC) Full Mode Adjustment ........................ 16
2-9.2. 1080i HD Mode Adjustment ..................................... 17
2-9.3. Vertical Compresses Mode Check and
Confirmation............................................................. 17
SECTION TITLE
PAGE
3. Safety Related Adjustments
3-1. X RV8001, RV8002 Confirmation Method and
HV Service Adjustments ...................................................... 18
3-2. B+ Max Confirmation ........................................................... 18
3-3. HV Service Flowchart .......................................................... 18
4. Circuit Adjustments
4-1. Setting the Service Adjustment Mode .................................. 19
4-1.1. Resetting the Data ................................................... 19
4-2. Memory Write Confirmation Method .................................... 19
4-3. Remote Adjustment Buttons and Indicators......................... 19
4-4. Service Data Lists ................................................................ 20
5. Diagrams
5-1. Circuit Boards Location ........................................................ 48
5-2. Printed Wiring Board and Schematic Diagram Information.. 48
5-3. Block Diagram and Schematics
Block Diagram ...................................................................... 49
A Board ................................................................................ 54
B Board ................................................................................ 61
BC Board.............................................................................. 75
C Board ................................................................................ 78
D Board ................................................................................ 81
HA Board.............................................................................. 88
HB Board.............................................................................. 90
S Board ................................................................................ 91
U Board ................................................................................ 92
W Board ............................................................................... 94
5-4. Semiconductors ................................................................... 96
6. Exploded Views
6-1. Chassis ................................................................................. 98
6-2. Picture Tube .......................................................................... 99
7. Electrical Parts List ....................................................................... 100
SECTION TITLE
PAGE


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KV-38DRC2 / 38DRC2C
TruSurround is a trademark of
SRS Labs, Inc. SRS and the SRS
symbol are registered trademarks
of SRS Labs, Inc. in the United
States and in select foreign coun-
tries. SRS and TruSurround are
incorporated under license from SRS Labs, Inc. and are protected
under United States Patent Nos. 4,748,669 and 4,841,572 with
numerous additional issued and pending foreign patents. Pur-
chase of this product does not convey the right to sell recordings
made with the TruSurround technology.
Television system
American TV standard, NTSC
Channel coverage
VHF: 2-13/ UHF: 14-69/ CATV: 1-125
Picture tube
FD Trinitron
®
tube
Visible screen size
36-inch picture measured diagonally
Actual screen size
38-inch measured diagonally
Antenna
75 ohm external terminal for VHF/UHF
Supplied Accessories
Remote Commander RM-Y184
Two Size AA (R6) Batteries
Optional Accessories
Connecting cables: RK-74A, VMC-810S/820/830HGS, VMC-720M,
VMC-810S/820S, YC-15V/30V, YC-15/30HG, RKG69HG, RKC-515HG
U/V mixer: EAC-66
TV Stand:
S U-36XBR45
SPECIFICATIONS
SRS (SOUND RETRIEVAL SYSTEM)
The
SRS (SOUND RETRIEVAL SYSTEM) is manufactured by
Sony Corporation under license from SRS Labs, Inc. It is covered
by U.S. Patent No. 4,748,669. Other U.S. and foreign patents
pending.
The word `SRS' and the SRS symbol
are registered trade-
marks of SRS Labs, Inc. BBE and BBE symbol are trademarks of
BBE Sound, Inc. and are licensed by BBE Sound, Inc. under U.S.
Patent No. 4,638,258 and 4,482,866.
Design and specifications are subject to change without notice.
1) 1 Vp-p 75 ohms unbalanced, sync negative
2) Y: 1 Vp-p 75 ohms unbalanced, sync negative
C: 0.286 Vp-p (Burst signal), 75 ohms
3) Y: 1.0 Vp-p, 75 ohms, sync negative;
PB: 0.7 Vp-p, 75 ohms
PR: Vp-p, 75 ohms
4) 500 mVrms (100% modulation), Impedance: 47 kilohms
5) More than 408 mVrms at the maximum volume setting (variable)
More than 408 mVrms (fix)
TruSurroundTM
by
SRS
®
KV-38DRC2
KV-38DRC2C
Power requirements
120V, 60 Hz
220V, 50 Hz
Number of inputs/outputs
Video
1)
4
S Video
2)
3
Audio
3)
6
Audio Out
4)
1
Y,PB, PR
5)
2
Monitor Out
1
Control-S (in/out)
YES
Speaker output(W)
7.5W x 4
Power Consumption(W)
In use(Max)
245W
In standby
2W
Dimensions(W/H/D)
(mm)
994 x 754.5 x 622 mm
(in)
39
9/
64 x 29
45/
64 x 24
1/
2 in
Mass
(kg)
108 kg
(lbs)
238 lbs.


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KV-38DRC2 / 38DRC2C
WARNINGS AND CAUTIONS
CAUTION
Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield, or carbon painted on the CRT,
after removing the anode.
WARNING!!
An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. The chassis of
this receiver is directly connected to the AC power line.
! SAFETY-RELATED COMPONENT WARNING!!
Components identified by shading and ! mark on the schematic diagrams, exploded views, and in the parts list are critical for
safe operation. Replace these components with Sony parts whose part numbers appear as shown in this manual or in supplements
published by Sony. Circuit adjustments that are critical for safe operation are identified in this manual. Follow these procedures
whenever critical components are replaced or improper operation is suspected.
ATTENTION!!
Apres avoir deconnecte le cap de l'anode, court-circuiter l'anode du tube cathodique et celui de l'anode du cap au chassis metallique
de l'appareil, ou la couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique.
Afin d'eviter tout risque d'electrocution provenant d'un chássis sous tension, un transformateur d'isolement doit etre utilisé lors de tout
dépannage. Le chássis de ce récepteur est directement raccordé à l'alimentation du secteur.
! ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifies par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de
pieces sont d'une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants Sony dont
le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages de circuit dont
l'importance est critique pour la securite du fonctionnement sont identifies dans le present manuel. Suivre ces procedures lors de
chaque remplacement de composants critiques, ou lorsqu'un mauvais fonctionnement suspecte.