Power requirements220-240 V AC, 50/60 HzKV-BM14P42/BM14P42/L
BM14P42/V
110-240 V AC, 50/60 HzKV-BM14M70
Power consumption (W) Indicated on the rear of the TV
Television systemB/GKV-BM14P42/BM14P42/L
BM14P42/V
B/G, I, D/K, MKV-BM14M70
Color systemPAL, PAL 60, NTSC3.58 (AV IN), NTSC4.43KV-BM14P42/BM14P42/L
BM14P42/V
PAL, PAL 60, SECAM, NTSC3.58, NTSC4.43KV-BM14M70
Stereo/Bilingual system A2 Bilingual B/GKV-BM14P42/BM14P42/L
BM14P42/V/KV-BM14M70
Channel Coverage
B/GVHF: E2 to E12 / UHF: E21 to E69KV-BM14P42/BM14P42/L
CATV: S01 to S03, S1 to S41BM14P42/V
IUHF: B21 to B68KV-BM14M70
CATV: S01 to S03, S1 to S41
D/KVHF: C1 to C12, R1 to R12 / UHF: C13 to C57, R21 to R60 /KV-BM14M70
CATV: S01 to S03, S1 to S41, Z1 to Z39
MVHF: A2 to A13 / UHF: A14 to A79 /KV-BM14M70
CATV: A-8 to A-2, A to W+4, W+6 to W+84
8 (Antenna)75-ohm external terminal
Audio output (Speaker)3W
Number of terminal
D VideoInput: 2 Output: 1Phono jacks; 1 VP-P, 75 ohms
≥ AudioInput: 2 Output: 1Phono jacks; 500 mVrms
EarphoneOutput: 1Monaural minijack
Picture tube14 in.
Tube size (cm)37Measured diagonally
Screen size (cm)34Measured diagonally
Dimension (w/h/d, mm)374 x 355 x 420
Mass (kg)12
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.
Design and specifications are subject to change without notice.
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.
6. ELECTRICAL PARTS LIST .................................... 57
OPERATING INSTRUCTIONS
– 3 –
KV-BM14M70/BM14P42/P42/L/P42/V
RM-W101
SELF DIAGNOSTIC FUNCTION
The units in this manual contain a self diagnostic function. If an error occurs, the STANDBY (1) indicator will automatically
begin to flash. A description of the self-diagnosis function is explained in the instruction manual. The number of times the
STANDBY (1) indicator flashes translates to a probable source of the problem. 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 (1) indicator will flash a set number of times to indicate the possible cause of the
problem. If there is more than one error, the indicator will identify the first of the problem areas.
Result for all of the following diagnosis items are displayed on screen. No error has occured if the screen displays a “0”.
Diagnosis
Item
Description
Power does
not turn on
+B overcurrent
(OCP)*
V-Protect
IK (AKB)
Power supply
NG (+5V) for
Video Processor
* If a +B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously. The symptom that is
diagnosed first by the mirco controller is displayed on the screen.
** Refer to Screen (G2) Adjustment in this manual.
No. of timer
STANDBY (1)
indicator flashes
Does not light
2 times
4 times
5 times
8 times
Self-Diagnostic
display/
Diagnosis result
–
2:0
or
2:1 ~ 255
4:0
or
4:1 ~ 255
5:0
or
5:1 ~ 255
8:0
or
8:1 ~ 255
Probable Cause
Location
• Power cord is not plugged
in.
• Fuse is burned out (F600)
A board.
• H OUT (Q805) is shorted.
(A board)
• IC751 is shorted. (C board)
• +13V is not supplied.
(A board)
• IC804 is faulty. (A board)
• Video OUT (IC1545) is
faulty. (A board)
• IC001 is faulty. (A board)
• Screen (G2) is improperly
adjusted.**
• IC604 faulty.
• IC602 faulty.
Detected
Symptoms
• Power does not turn on.
• No power is supplied on
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 shorted.
• No raster is generated.
• CRT Cathode current
detection reference pulse
output is small.
• No power supply to CRT
ANODE.
• No RASTER is generated.
– 4 –
2. DISPLAY OF STANDBY (1) INDICATOR
FLASH COUNT
2 times
4 times
5 times
8 times
Lamp ON 300ms
Lamp OFF 300ms
Lamp OFF 3 sec.
KV-BM14M70/BM14P42/P42/L/P42/V
RM-W101
Diagnostic ItemFlash Count*
+B overcurrent2 times
V-Protect4 times
IK (AKB)5 times
Power Supply NG (+5V)8 times
for Video processor
* One flash count is not used for self-diagnosis.
STANDBY indicator
3. STOPPING THE
STANDBY (1) INDICATOR FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY (1)
indicator from flashing.
4. SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as "power sometimes shuts off" or "screen sometimes goes off" that cannot be confirmed,
it is possible to bring up past occurrences of failure on the screen for confirmation.
[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
Display
/ Channel 5 / Volume / Power / TV
˘
Note that this differs from entering the service mode (volume [+]).
The following screen will be displayed indicating the error count.
SELF DIAGNOSTIC
2 : 0
3 :N/A
4 :0
5 :1
8 :0
101 :N/A
Numeral "0" means that no fault was detected.
Numeral "1" means the number of a fault occurrence (1 ~ 255).
– 5 –
KV-BM14M70/BM14P42/P42/L/P42/V
RM-W101
5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic
screen during repairs. When you have completed the repairs, clear the result display to “0”.
Unless the result display is cleared to “0”, the self-diagnosis function will not be able to detect subsequent faults after
completion of the repairs.
[Clearing the result display]
To clear the result display to “0”, press buttons on the remote commander subsequent as shown below when the
self-diagnostic screen is being displayed.
8 , -
[Quitting Self-diagnostic screen]
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
6. SELF-DIAGNOSTIC CIRCUIT
FROM
C BOARD
IC751 PIN 5
A BOARD
FROM
Q804
COLLECTOR
A BOARD
IC001
Y/CHROMA JUNGLE
IK
32
EHTO
A BOARD
IC804
V.OUT
F.B-PLS
A BOARD
IC001
SYSTEM
SDA1
31384
V.GUARD
RED LED
99
122
DISPLAY
A BOARD
IC003
MEMORY
5
SDA
[+B overcurrent $OCP%]Occurs when an overcurrent on the +B(135V) line is detected by pin 32 of IC001 (A board).
If the voltage of pin 32 of IC001 (A board) is more than 4V, the unit will automatically go
to standby.
[V-PROTECT]Occurs when an absence of the vertical deflection pulse is detected by pin 13 of IC001
(A board).
[IK $AKB%]If the RGB levels* do not balance within 15 sec after the power is turned on, this error will
be detected by IC001 (A board). TV will stay on, but there will be 5 times LED blinking.
POWER SUPPLY NG (+5V)
for VIDEO PROCESSOR
Occurs when IC001 internal HV protect detects an abnormal H-Pulse (frequency) due to
improper power supply to IC001. TV cuts off high voltage power of anode CRT. No picture
will be detected. eg: IC602, IC604 go faulty.
* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)
– 6 –
SECTION 1
DISASSEMBLY
KV-BM14M70/BM14P42/P42/L/P42/V
RM-W101
1-1. REAR COVER REMOVAL
1 Rear cover
2 Six screws
(+BVTP 4 × 16)
1-3. CHASSIS ASSY REMOVAL
1-2. SPEAKER REMOVAL
1 Four screw
(+BVTP 4 × 16)
1-4. SERVICE POSITION
1-5. TERMINAL BRACKET REMOVAL1-6. A BOARD REMOVAL
3 One screw
(+BVTP 3 × 12)
1 Terminal
bracket
2 Two screw
(+BVTP 4 × 16)
– 7 –
1 A board
KV-BM14M70/BM14P42/P42/L/P42/V
c
RM-W101
1-7. PICTURE TUBE REMOVAL
Note:
• Please make sure the TV set is not in standing position before removing necessary CRT support located on bottom
right and left.
1) Place the TV set with the CRT face down on a cushion jig.
2) Remove the rear cover.
3) Unplug all inder connecting leads from the Deflection Yoke, Degaussing Coil and CRT grounding strap.
qf Block Center
qd Nut, Special, CRT (4)
qa Spring Tension Removal
0 Earth Coating Assy
4 Anode Cap Removal
9 Support, CRT(2) Removal
7 Loosen the Deflection Yoke
fixing screw and remove
qs Band, DGC Removal
6 Loosen the Neck Assembly
fixing screw and remove
5 C Board Removal
8 Chassis Assy Removal
• REMOVAL OF ANODE-CAP
Note:
• After removing the anode, short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT
shield or carbon paint on the CRT.
•REMOVING PROCEDURES
a
a
1 Turn up one side of the rubber cap in the direction
indicated by the arrow A.
b
b
2 Using a thumb pull up the rubber cap firmly in the di-
rection indicated by the arrow B.
3 When one side of the rubber cap is separated from
the anode button, the anode-cap can be removed by
anode button
turning up the rubber cap and pulling it up in the
direction of the arrow C.
•HOW TO HANDLE AN ANODE-CAP
1 Do not damage the surface of anode-caps with
sharp shaped objects.
2 Do not press the rubber too hard so as not to
damage the inside of anode-cap.
A metal fitting called the shatter-hook terminal is
built into the rubber.
3 Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage
the rubber.
– 8 –
SECTION 2
Purity control
SET-UP ADJUSTMENTS
KV-BM14M70/BM14P42/P42/L/P42/V
RM-W101
• The following adjustments should be made when a
complete realignment is required or a new picture
tube is installed.
Perform the adjustments in the following order :
1. Beam Landing
2. Convergence
3. Focus
Set the controls as follows unless otherwise noted:
VIDEO model ..................................................... Standard
PICTURE control .................................................. normal
BRIGHTNESS control .......................................... normal
• In order to reduce the influence of geomagnetism on
the set's picture tube, face it east or west.
• Switch on the set's power and degauss with the
degausser.
2-1.BEAM LANDING
Picture Mode: DYNAMIC
1. Input a white signal with the pattern generator.
Contrast
Brightness
}
normal
2. Set the pattern generator raster signal to a green
raster.
3. Move the deflection yoke to the rear and adjust with
purity control so that the green is at the center and
the blue and the red take up equally sized areas on
each side. (See Figures 2-1 through 2-4.)
4. Move the deflection yoke forward and adjust so that
the entire screen is green. (See Figure 2-1.)
5. Switch the raster signal to blue then to red and verify
the condition.
6. When the position of the deflection yoke has been
decided fasten the deflection yoke with the screws
and DY spacers.
7. If the beam does not land correctly in all the corners,
use a magnet to adjust it. (See Figure 2-4.)
Purity control
corrects this area.
b
Fig. 2-2
Blue
Red
Green
Fig. 2-3
Disk magnets or rotatable
disk magnets correct these
a
areas (a-d).
d
c
Deflection yoke positioning
corrects these areas.
b
c
a
d
Fig. 2-1Fig. 2-4
– 9 –
KV-BM14M70/BM14P42/P42/L/P42/V
RM-W101
2-2.CONVERGENCE
• Before starting this adjustment, adjust the focus,
horizontal size and vertical size.
• Receive dot/hatch signal.
• Pic mode: Soft.
(1) Horizontal and Vertical Static Convergence
Center dot
R G B
H. STAT VR
R
G
B
V. STAT
Magnet
RV750
H. STAT
C Board
Operation of V.STAT magnet
If the V.Stat magnet is moved in the “A” and “B” arrows,
the red, green and blue dots moves as shown below.
A
B
A
B
G
R
B
B
G
R
Moved RV750 H.STAT.
the red, green and blue dots move as shown below.
A
RGGBB
B
R
4. BMC (Hexapole) Magnet.
If the red, green and blue dots are not balanced or
aligned, then use the BMC magnet to adjust in the
manner described below.
RGB R G BRGB
1. (Moving vertically), adjust the V.STAT magnet so that
the red, green and blue dots are on top of each other
at the center of the screen.
2. (Moving horizontally), adjust the H.STAT control so
that the red, green and blue dots are on top of each
other at the center of the screen.
3. If the H.STAT variable resistor cannot bring the red,
green and blue dots together at the center of the
screen, adjust the horizontal convergence with the
H.STAT variable resistor and the V.STAT magnet in
the manner given below.
(In this case, the H.STAT variable resistor and the
V.STAT magnet influence each other, so be sure to
perform adjustments while tracking.)
BMCPurity
BMC (Hexapole)
Purity
RB
G
RG
GB
RB
DY pocket
V.STAT
V.STAT
– 10 –
(2) Convergence Rough Adjustment
Preparation:
• Before starting this adjustment, adjust the horizontal
static convergence and the vertical static
convergence
B
R
KV-BM14M70/BM14P42/P42/L/P42/V
RM-W101
B
R
TLH
RB
YCH
TLHInsert TLHCorrection Plate to DY Pocket
(Left or Right)
YCH Insert YCH VOL on DY
TLVRotate TLVVOL on DY
XCV Rotate XCV Adj core on DY
(3) Screen corner Convergence
1. Affix a Piece A (90), conv. correct corresponding to
the misconverged areas.
R
B
ON DY:
TLV
XCV
YCH
TLV
XCV
TLV
DY pocket
TLH Plate
XCV
ba
a-d : screen-corner
misconvergence
cd
– 11 –
DY pocket
a
d
Piece A (90), conv. correct
b
c
KV-BM14M70/BM14P42/P42/L/P42/V
RM-W101
2-3.FOCUS ADJUSTMENT
FOCUS adjustment should be completed before the W/B
adjustment:
1. Receive digital monoscope pattern.
2. Set picture mode: DYNAMIC.
3. Adjust focus VR to obtain a just focus at the center of
the screen.
4. Change receiving signal to white pattern and blue
back.
5. Confirm MAGENTA RING is not noticeable. Incase
magenta ring is obvious, then adjust FOCUS VR to
balance magenta ring and FOCUS.
FOCUS
2-5.WHITE BALANCE ADJUSTMENT
1. Set to Service Mode (Refer Section 3-1:
ADJUSTMENTS WITH COMMANDER)
2. Input white raster signal.
3. Set Picture to <DYNAMIC mode>
4. Select RDRV (02) with 1 and 4 and fixed the value
to 25 with 3 and 6
5. Adjust WHBL GDRV (03) and BDRV (04) with 1 and
4 and adjust the data with 3 and 6 for best white
balance in Highlight condition.
6. Write into the memory by pressing [MUTING] then -.
7. Adjust WHBL BKOR (00) and BKOG (01) with 1 and
4 and adjust the level with 3 and 6 for best white
balance cut-off condition.
8. Write into memory by pressing [MUTING] then -.
2-6.SUB BRIGHT ADJUSTMENT
1. Set to service mode.
2. Brightness set to 50%, Picture....Minimum
3. Select WHBL SBRT (10) with 1 and 4 and adjust
SBRT (10) data with 3 and 6 so that the third
stripe from right dimly lit.
4. Write into the memory by pressing [MUTING] then -.
U S : US/Latin/Taiwan
E U : Europe
G A : General Area
J P: Japan
item no.service dataNVMfieldchannel no./
softwareservice datareservedpower on time
Status ByteStatus Byte
Flash DCXO#1 SSD#2 SSD
VDSP_C Flag
CO_LOCKED
VDSP
Detected Stereo Type (Direct Value from CZ_ Stereo_Mode)
111Needed for Nicam DCXO aligment Purpose
xyValue of x = 0 - Unknown, 1 - BTSC, 2 - A2, 3 - NICAM,
4 - KOREAN, 5 - Japan, 6 - AV Stereo
Value of y = 0 - Mono, 1 - Stereo, 2 - Bilingual, 4 - SAP/Single
0 1 : serial no. of the M/P release
for each destination
b. METHOD OF CANCELLATION FROM SERVICE MODE
Set the standby condition (Press [POWER] button on the commander), then press [POWER] button again, hereupon it
becomes TV mode.
c. METHOD OF WRITE INTO MEMORY
1. Set to Service Mode.
2. Press 1 (UP) and 4 (DOWN), to select the adjustment item.
3. Change item by pressing 3, 6.
4. Press [MUTING] button to indicate WRITE on the screen.
5. Press - button to write into memory.
1, 4Select the adjustment item.
r
3, 6Raise/lower the data value.
r
[MUTING]Writes.
r
-Executes the writing.
d. MEMORY WRITE CONFIRMATION METHOD
1. After adjustment, pull out the plug from AC outlet, and then plug into AC outlet again.
2. Turn the power switch ON and set to Service Mode.
3. Call the adjusted items again to confirm adjustments were made.
– 13 –
KV-BM14M70/BM14P42/P42/L/P42/V
RM-W101
e. OTHER FUNCTION VIA REMOTE COMMANDER
7, -All the data becomes the values in memory.
8, -All user control goes to the standard state.
Display, -Service data initialization (Be sure not to use usually.)
2, 5Select Device or Category
3-2.ADJUSTMENT METHOD
Item Number 000 HPOS
This explanation uses H POSITION as an example.
1. Select "000 HPOS" with the 1 and 4 buttons, or 2 and 5.
2. Raise/lower the data with the 3 and 6 buttons.
3. Select the optimum state. (The standard is IF for PAL reception.)
4. Write with the [MUTING] button. (The display changes to WRITE.)
5. Execute the writing with the - button. (The WRITE display will be changed to red color while excuting, and back to
SERVICE.)
Example on screen display :-
GREEN
GEOM000HPOS039 SERVICE 50 VIDEO 1
Adjusted with [3] and [6] buttons.
GREEN
GEOM000HPOS039 WRITE50 VIDEO 1
write with [MUTING].
RED
GEOM000HPOS039 WRITE50 VIDEO 1
Write executed with [0].
The WRITE display
then returns to green
SERVICE
Use the same method for all Items. Use 1 and 4 to select the adjustment item, use 3 and 6 to adjust, write with
[MUTING], then execute the write with -.
Note : 1. In [WRITE], the data for all items are written into memory together.
2. For adjustment items that have different standard data between 50Hz or 60Hz, be sure to use the respective
input signal after adjustment.
• Standard data listed on the Adjustment Item Table are reference values, therefore it may be different for each model and for each mode.
• Note for Different Data Those are the standard data values written on the microprocessor. Therefore, the data values of the modes and stored respectively in the memory.
shaded items are no data.
In case of a device replacement, adjustment by rewriting the data value is necessary for some items.
01 = 4 time speed from the original
10 = 6 time speed from the original
11 = 8 time speed from the original
0
0
0
0
B/G
1
1
1
1
SECAM
1
0
0
0
I
1
0
0
0
0
0
0
0
D/K
1
0
0
0
0
0
0
0
RM-W101
No. OPB3
Item
KV-BM14M70
KV-BM14P42
KV-BM14P42/L
KV-BM14P42/V
D1(D1 Terminal)0 = not available, 1 = available
AV Multi/(AV Multi Terminal) - JP0 = not available, 1 = available
PAMPortable Audio Mode - GA0 = not available, 1 = available
Component(Component [YCbCr] Terminals)0 = not available, 1 = available
Composite(No. of Composite Terminals)00 = no composite terminal
(Euro:no Scart) BX1L:No Video
(SCART)(No. of SCART Terminals)01 = 1 composite terminal
(Euro:1 Scart) BX1L:2 Video in
10 = 2 composite terminals
(Euro:2 Scart) BX1L:3 Video in
11 = 3 composite terminals
(Euro:no terminal) BX1L:4 Video in
SECAM(SECAM Color System)0 = not available, 1 = available
Color decoding(Color Crystal Selection)00 = PAL/NTSC/SECAM (Multi)