MODEL
COMMANDER DEST. CHASSIS NO.
KV-1499M70
RM-952 ME
SCC-U30D-A
KV-1499M80
RM-952 ME
SCC-U30E-A
KV-HF14M90 RM-952 Hong Kong SCC-U17J-A
KV-HF14P40
RM-952 Malaysia
SCC-U21F-A
MODEL
COMMANDER DEST. CHASSIS NO.
CHASSIS
TRINITRON ® COLOR TV
SERVICE MANUAL
BG-3S
Self Diagnosis
Supported model
2
KV-1499M70/1499M80/HF14M90/HF14P40
RM-952
SPECIFICATIONS
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.
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 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 TO SAFE OPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOWTHESE PROCEDURES WHENEVER CRITICAL
COMPONENTS ARE REPLACED OR IMPROPER OPERATION IS
SUSPECTED.
Note
Power requirements
110-240 V AC, 50/60 Hz
KV-1499M70/1499M80
220-240V AC, 50/60Hz
KV-HF14M90/HF14P40
Power consumption (W) Indicated on the rear of the TV
Television system
B/G, I, D/K, M
Except KV-HF14P40
B/G
KV-HF14P40
Color system
PAL, PAL60, SECAM, NTSC4.43, NTSC3.58
Except KV-HF14P40
PAL, PAL60, NTSC4.43, NTSC3.58 (AV IN)
KV-HF14P40
Stereo/Bilingual system
NICAM Stereo/Bilingual B/G, I; A2 Stereo/Bilingual (German) B/G
KV-HF14M90 only
Channel coverage
B/G
VHF : E2 to E12/ UHF : E21 to E69/ CATV :
S01 to S03, S1 to S41
I
UHF : B21 to B68/ CATV : S01 to S03, S1 to S41
Except KV-HF14P40
D/K
VHF : C1 to C12, R1 to R12/ UHF : C13 to C57, R21 to R60
CATV: Z1 to Z39, S01 to S03, S1 to S41
Except KV-HF14P40
M
VHF : A2 to A13/ UHF : A14 to A79/
CATV : A-8 to A-2, A to W+4, W+6 to W+84
Except KV-HF14P40
(Antenna)
75-ohm external terinal
Audio output
3W + 3W
Number of terminal
(Video)
Input : 2
Output : 1
Phono jacks; 1 Vp-p, 75 ohms
(Audio)
Input : 2
Output : 1
Phono jacks; 500 mVrms
(Earphone)
Output : 1
Minijack
KV-1499M70/HF14P40
2 (Headphone)
Output : 1
Minijack
KV-1499M80/HF14M90
Picture tube
14 inch
Tube size (cm)
37
Measured diagonally
Screen size (cm)
34
Measured diagonally
Dimension (w/h/d, mm)
466 x 341 x 416
Mass (kg)
13
Design and specifications are subject to change without notice.
Ø
3
KV-1499M70/1499M80/HF14M90/HF14P40
RM-952
TABLE OF CONTENTS
Section
Title
Page
SELF DIAGNOSIS FUNCTION ................................ 4
1. GENERAL ........................................................................ 8
2. DISASSEMBLY
2-1.
Rear Cover Removal ................................................ 31
2-2.
Chassis Assy Removal ............................................. 31
2-3.
F Bracket Removal .................................................. 31
2-4.
Service Position ....................................................... 32
2-5.
Replacement of Parts ............................................... 32
2-5-1.
Replacement of Control Button .......................
32
2-5-2.
Replacement of Light Guide ............................
32
2-6.
Terminal Bracket Removal ...................................... 32
2-7.
Degauss Coil Removal ............................................. 33
2-8.
Picture Tube Removal .............................................. 33
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing .......................................................... 35
3-2.
Convergence ............................................................. 36
3-3.
Focus Adjustment .................................................... 38
3-4.
G2 (Screen) and White Balance Adjustments ......... 38
4. CIRCUIT ADJUSTMENT
4-1.
Adjustments with Commander ................................ 39
4-2.
Adjustment Method ................................................. 40
4-3.
Picture Quality Adjustments .................................... 45
4-4.
A Board Adjustment After IC003 (Memory)
Replacement ............................................................. 45
4-5.
Picture Distortion Adjustment ................................. 46
Section
Title
Page
5. DIAGRAMS
5-1.
Block Diagram ......................................................... 51
5-2.
Frame Schematic Diagram ...................................... 54
5-3
Circuit Boards Location .......................................... 56
5-4.
Schematic Diagrams and Printed Wiring Boards ... 57
(1)
Schematic Diagram of A (1/2) Board ...................... 59
(2)
Schematic Diagram of A (2/2) Board ...................... 63
(3)
Schematic Diagrams of C3 and F Boards ............... 71
5-5.
Semiconductors ........................................................ 77
6. EXPLODED VIEW
6-1.
Chassis ..................................................................... 80
7. ELECTRICAL PARTS LIST ....................................... 82
4
KV-1499M70/1499M80/HF14M90/HF14P40
RM-952
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automatically
begin to flash.
The number of times the lamp flashes translates to a probable source of the problem. A definition of the STANDBY/TIMER
lamp 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.
1.
DIAGNOSTIC TEST INDICATORS
When an errors occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate the possible cause of the
problem. If there is more than one error, the lamp will identify the first of the problem areas.
Result for all of the following diagnostic items are displayed on screen. No error has occured if the screen displays a "0".
Diagnostic
Item
Description
· Power does not
turn on
· +B overcurrent
(OCP) or
overvoltage
(OVP)
· Vertical deflection
stopped
· Horizontal
deflection
overdrive
· White balance
failure (no
PICTURE)
· Micro reset
No. of times
STANDBY/TIMER
lamp flashes
Does not light
2 times
5 times
--
Self-diagnostic
display/Diagnostic
result
--
002:000 or
002:001~255
003:001~255
004:001~255
at the same time
005:000 or
005:001~225
101:00 or
101:001~225
Probable
Cause
Location
· Power cord is not plugged
in.
· Fuse is burned out F4601
(F)
· H.OUT Q511 is shorted. (A
board)
· -13V is not supplied. (A
board)
· IC 503 faulty (A board)
· IC 301 faulty ( A board)
· G2 is improperly adjusted.
(Note 2)
· CRT problem.
· IC301 is faulty. (A board)
· No connection A board to
C3 board.
· Discharge CRT (C3 Board)
· Static discharge
· External noise
Detected
Symptoms
· Power does not come on.
· No power is supplied to the
TV.
· AC power supply is faulty.
· Power does not come on.
· Load on power line is
shorted.
· Has entered standby state
after horizontal raster.
· Vertical deflection pulse is
stopped.
· Power line is shorted or
power supply is stopped.
· No raster is generated.
· CRT cathode current
detection reference pulse
output is small.
· Power is shut down shortly,
after this return back to
normal.
· Detect Micro latch up.
Note 1: If a + B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously.
The symptom that is diagnosed first by the microcontroller is displayed on the screen.
Note 2: Refer to screen (G2) Adjustment in section 3-4 of this manual.
SELF DIAGNOSTIC FUNCTION
5
KV-1499M70/1499M80/HF14M90/HF14P40
RM-952
2.
DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT
Diagnostic Item
Flash Count*
+B overcurrent/overvoltage
2 times
Vertical deflection stopped
White balance failure
5 times
* One flash count is not used for self-diagnostic.
3.
STOPPING THE STANDBY/TIMER FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER lamp
from flashing.
Lamp ON 0.3 sec.
Lamp OFF 3 sec.
Lamp OFF 0.3 sec.
2 times
5 times
STANDBY/SLEEP lamp