KV-32XBR400 — Sony TV Service Manual (repair manual)

Model
KV-32XBR400
Pages
119
Size
9.17 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-32xbr400.pdf
Date

View Sony KV-32XBR400 Service Manual online

SERVICE MANUAL
DX-1A 
CHASSIS
MODEL
    COMMANDER
DEST
CHASSIS  NO.
KV-32XBR400
RM-Y174
US
SCC-S47A-A
KV-32XBR400
RM-Y174
CND
SCC-S48A-A
KV-36XBR400
RM-Y174
US
SCC-S47B-A
KV-36XBR400
RM-Y174
CND
SCC-S48B-A
KV-38DRC1
RM-Y174
E
SCC-S49A-A
KV-38DRC1C
RM-Y174
E
SCC-S49B-A
KV-36XBR400H
RM-Y174
HAWAII
SCC-S54A-A
TRINITRON
®
 COLOR TV
RM-Y174
KV-32XBR400
— 2 —
KV-32XBR400/36XBR400/36XBR400H/38DRC1/38DRC1C
SPECIFICATIONS
Design and specifications are subject to change without notice.
Television system
American TV standard/NTSC
Channel coverage
VHF:2-13/UHF:14-69/CATV:1-125
Visible screen size
     FD Trinitron
 tube
Visible screen size
32” picture measured diagonally (KV-32XBR400)
36” picture measured diagonally (KV-36XBR400/36XBR400H/38DRC1/38DRC1C)
Actual screen size
34” picture measured diagonally (KV-32XBR400)
38” picture measured diagonally (KV-36XBR400/36XBR400H/38DRC1/38DRC1C)
Antenna
75 ohm external antenna terminal for VHF/UHF
Supplied accessories
Remote Commander RM-Y174
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: SU-32XBR4A, SU-36XBR4A
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: 0.7 Vp-p, 75 ohms
4)
500mVrms (100% modulation), impedance: 47kilohms
5)
More than 408 mVrms at the maximum volume setting (variable)
More than 408 mVrms (fix)
KV-32XBR400
KV-38DRC1        
KV-36XBR400      
KV-36XBR400H
KV-38DRC1C
Power requirements
120V, 60 Hz
120V, 60 Hz
220V, 50/60Hz
Number of inputs/outputs
Video 
1)
S Video 
2)
Y,PB,PR 
3)
Audio 
4)
Audio Out 
5)
Monitor Out
Control-S (in/out)
Speaker output(W)
Power Consumption(W)
In use(Max)
In standby
Dimensions(W/H/D)
(mm)
898 x 678 x 579.5
(in)
35 
3/8
 x 26 
3/4
 x 27 
7/8
Mass
(kg)
84kg 
(lbs)
185 lbs
15W x 2
2
1
YES
4
3
2
6
108kg 
238 lbs
245W
2W
994 x 754.5 x 622
39 
9/64
 x 29 
45/64
 x 24 
1/2
— 3 —
KV-32XBR400/36XBR400/36XBR400H/38DRC1/38DRC1C
Section
Title
Page
Warnings and Cautions ...................................................................................................................................... 4
Self-Diagnostic Function .................................................................................................................................... 4
Safety Check-Out Instructions ............................................................................................................................ 7
1.
GENERAL ........................................................................................................................................................... 8
2.
DISASSEMBLY
2-1.
Rear Cover Removal ............................................................................................................................. 13
2-2.
Chassis Assembly Removal .................................................................................................................. 13
2-3.
Service Position ..................................................................................................................................... 13
2-4.
Picture Tube Removal ............................................................................................................................ 14
3.
SET-UP ADJUSTMENTS
3-1.
Beam Landing ....................................................................................................................................... 15
3-2.
V-Pin and V-Cen Adjustment .................................................................................................................. 16
3-3.
Convergence ......................................................................................................................................... 16
3-4.
Focus Adjustment .................................................................................................................................. 18
3-5.
Screen (G2) ............................................................................................................................................ 18
3-6.
Picture Quality Adjustments ................................................................................................................... 18
3-7.
White Balance Adjustments ................................................................................................................... 20
3-8.
Raster Center Adjustment ..................................................................................................................... 21
3-9.
Picture Distortion Adjustments ............................................................................................................... 21
3-9-1. NTSC (DRC) Full Mode Adjustment ...................................................................................................... 21
4.
SAFETY RELATED ADJUSTMENTS
 RV8001, 8002, 8003 Confirmation Method and HV Service Adjustments ....................................... 23
5.
CIRCUIT ADJUSTMENTS
5-1.
Setting the Service Adjustment Mode ................................................................................................... 24
5-2.
Memory Write Confirmation Method ...................................................................................................... 24
5-3.
Adjustment Buttons and Indicators ........................................................................................................ 24
5-4.
Service Data Lists .................................................................................................................................. 25
6.
DIAGRAMS
6-1.
Block Diagram ....................................................................................................................................... 55
6-2.
Circuit Board Location ........................................................................................................................... 55
6-3.
Printed Wiring Boards and Schematic Diagrams .................................................................................. 55
• A Board .............................................................................................................................................. 58
• C Board .............................................................................................................................................. 60
• S Board .............................................................................................................................................. 61
• HA Board ........................................................................................................................................... 61
• BC Board ........................................................................................................................................... 62
• W Board ............................................................................................................................................. 62
• B Board .............................................................................................................................................. 63
• HB Board ........................................................................................................................................... 63
• D Board .............................................................................................................................................. 68
• U Board .............................................................................................................................................. 72
6-4.
Semiconductors ..................................................................................................................................... 73
7.
EXPLODED VIEW
7-1. Chassis .................................................................................................................................................. 7
6
7-2. Picture Tube ........................................................................................................................................... 7
8
8. ELECTRICAL PARTS LIST
................................................................................................................................................ 
81
TABLE OF CONTENTS
— 4 —
KV-32XBR400/36XBR400/36XBR400H/38DRC1/38DRC1C
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 AU COUCHE DE CARBONE
PEINTE SUR LE TUBE CATHODIQUE OU AU BLINDAGE DU TUBE
CATHODIQUE.
ATTENTION!!
AFIN D'EVITER TOUT RESQUE 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 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'UNEIMPORTANCE 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 FONTIONNEMENT SUSPECTE.
SELF-DIAGNOSTIC FUNCTION
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/STEREO LED will automatically begin to
flash. The number of times the LED flashes translates to a probable source of the problem. A definition of the STANDBY/STEREO LED
flash indicators is listed in the instruction manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the
Remote Commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these
problems occur.
Diagnostic Test Indicators
When an error occurs, the STANDBY/STEREO LED will flash a set number of times to indicate the possible cause of the problem. If
there is more than one error, the LED will identify the first of the problem areas. Due to a hardware upgrade, there is no LED flashing in
sets using Ver.1.0 system micros. This has been addressed in Ver.2.0 system micros.
Results for all of the following diagnostic items are displayed on screen. No error has occurred if the screen displays a “0”.
Diagnostic
Item/Description
No. of times
STANDBY/STEREO
LED  flashes
Self-diagnostic
Display/
Diagnostic result
Probable Cause Location
Detected Symptoms
Power does not turn on
Does not light
•  Power cord is not plugged in.
•  Fuse is burned out. (F5501)
•  Power does not come on.
•  No power is supplied to the TV.
•  AC power supply is faulty.
+B overcurrent (OCP)
(see Note 1)
2 times
2:0 or 2:1
•  H.OUT (Q5030) is shorted. (D board)
•  +B PWM (Q5003) is shorted. (D board)
•  IC9001,IC9002, IC9003 is shorted. (C board)
•  Power does not come on.
•  Load on power line is shorted.
Low B overvoltage (OVP)                 3 times 
3:0 or 3:1 
•   IC6505 is faulty. (D Board) 
•  Has entered standby mode.
Vertical deflection stopped
4 times
4:0 or 4:1
•  +/-15V is not supplied. (D board)
•  IC 5004 is faulty. (D board)
•  Has entered standby state after
horizontal raster.
•   Vertical deflection pulse is stopped.
•  Power line is shorted or power
supply is stopped.
White balance failure
(not balanced)
5 times
5:0 or 5:1
•  Video OUT (IC9001-IC9003) is faulty. (C
board)
•  CRT Drive (IC201) is faulty.  (A Board)
•  G2 is improperly adjusted. (see Note 2)
•  No raster is generated.
•  CRT cathode current detection
reference pulse output is small
Page of 119
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Here you can view online or download Sony KV-32XBR400 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony KV-32XBR400 TV. Information contained in Sony KV-32XBR400 service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).