KV-DX32K9H - Sony TV Service Manual (repair manual)

– 2 –

Antenna

75 ohm external terminal for VHF/UHF

Television System

NTSC, American TV Standard

Screen Size (measured diagonally)

32 inches 

 

Channel Coverage
 VHF

2-13

 UHF

14-69

 CATV

1-125

Power Requirements

220 V AC, 60 Hz

Number of Inputs/Outputs

Video (IN)

4

1 Vp-p, 75 ohms unbalanced, sync negative

S Video (IN)

3

Y: 1 Vp-p, 75 ohms unbalanced, sync negative

C: 0.286 Vp-p (Burst signal), 75 ohms

Audio (IN)

6

500 mVrms (100% modulation)

Impedance: 47 kiloohms

TV Out

1 

Video: 1 Vp-p 75 ohms unbalanced, Sync 
negative

Audio: 500 mVrms

DTV (HD)/DVD Input

2 (Y, P

B

, P

R

)

Y: 1.0 Vp-p, 75 ohms unbalanced, sync 
negative

P

B

: 0.7 Vp-p, 75 ohms

P

R

: 0.7 Vp-p, 75 ohms

 RF Inputs

1

 Converter

1

Speaker Output

5  

W  

x 2, 10W x 1

Dimensions (W x H x D)

882 x 590 x 549 mm 

 

Mass

66.7 kg 

Indicated on the rear of the TV

Power Consumption

Design and specifications are subject to change without notice.   

– 3 –

(CAUTION)

SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR CAR-
BON PAINTED ON THE CRT, AFTER REMOVING THE ANODE.

WARNING!!

AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BE-
CAUSE OF LIVE CHASSIS.
THE CHASSIS OF THIS RECElVER 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 TO SAFE OPERATION. REPLACE
THESECOMPONENTS WITH SONY PARTS WHOSE PART NUM-
BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT
ARE CRITICAL TO SAFEOPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITI-
CAL COMPONENTS ARE REPLACED OR IMPROPER OPERA-
TION IS SUSPECTED.

– 4 –

Section

Title

Page

––––––

––––

––––

Section

Title

Page

––––––

––––

––––

.................................... 5

2-1.

REAR COVER ............................................................ 8

2-2.

SPEAKER BLOCK .................................................... 8

2-3.

CHASSIS ASSEMBLY ............................................... 9

2-4.

ASSEMBLING CHASSIS ASSEMBLY .................. 10

2-5.

SERVICE POSITION ............................................... 11

2-6.

U BRACKET ............................................................ 11

2-7.

F4 BOARD ................................................................ 12

2-8.

U3 BOARD ............................................................... 12

2-9.

B1 BOARD ............................................................... 13

2-10. H1 BOARD ............................................................... 13
2-11. H2 BOARD ............................................................... 14
2-12. H4 BOARD ............................................................... 14
2-13. REMOVAL OF ANODE-CAP .................................. 15
2-14. CRT ........................................................................... 16
2-15. PARTS LOCATION AND WIRING ......................... 17

3-1.

METHOD OF SETTING THE SERVICE
ADJUSTMENT MODE ............................................ 18

3-2.

SERVICE MODE ADJUSTMENT ........................... 18

3-3.

MEMORY WRITE CONFIRMATION METHOD .. 18

3-4.

ADJUSTING BUTTONS AND INDICATOR .......... 18

3-5.

SERVICE MODE LIST ............................................ 19

4-1.

BEAM LANDING .................................................... 46

4-2.

CONVERGENCE ADJUSTMENT .......................... 47

4-3.

G2 (SCREEN) ADJUSTMENT ................................ 49

4-4.

FOCUS ADJUSTMENT 1 ........................................ 49

4-5.

NECK ASSY TWIST AJUSTMENT ........................ 49

4-6.

P&P SUB CONTRAST ADJUSTMENT
(VIDEO) (SCON) ..................................................... 50

4-7.

P&P SUB CONTRAST ADJUSTMENT
(RF) (SCON) ............................................................. 50

4-8.

P&P SUB-HUE AND SUB-COLOR
ADJUSTMENT (VIDEO) (SHUE, SCOL) .............. 50

4-9.

P&P SUB-HUE AND SUB-COLOR
ADJUSTMENT (RF) (SHUE, SCOL) ...................... 50

4-10. WHITE BALANCE, SUB BRIGHT

ADJUSTMENT ......................................................... 51

4-11. FOCUS ADJUSTMENT 2 ........................................ 51
4-12. PICTURE DISTORTION ADJUSTMENT .............. 51

5-1.

+B MAX VOLTAGE CONFIRMATION .................. 52

5-2.

HV REGULATION CIRCUIT ADJUSTMENT ....... 52

5-3.

HV PROTECTOR CIRCUIT ADJUSTMENT ......... 52

5-4.

IK PROTECTOR CIRCUIT CHECK (D BOARD) .. 52

6-1.

BLOCK DIAGRAM (1) ............................................ 53
BLOCK DIAGRAM (2) ............................................ 55
BLOCK DIAGRAM (3) ............................................ 57
BLOCK DIAGRAM (4) ............................................ 59
BLOCK DIAGRAM (5) ............................................ 61
BLOCK DIAGRAM (6) ............................................ 63
BLOCK DIAGRAM (7) ............................................ 65

6-2. CIRCUIT BOARDS LOCATION ................................. 68
6-3. PRINTED WIRING BOARDS AND SCHEMATIC
       DIAGRAMS ................................................................... 68
6-4. SEMICONDUCTORS ................................................. 139

7-1.

SPEAKER SECTION ............................................. 141

7-2.

CHASSIS SECTION .............................................. 142

7-3.

BEZNET SECTION ................................................ 143

7-4.

CRT SECTION ....................................................... 144

.....................................  145