DOWNLOAD Sony KV-HR36M90 Service Manual ↓ Size: 7.26 MB | Pages: 127 in PDF or view online for FREE

Model
KV-HR36M90
Pages
127
Size
7.26 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-hr36m90.pdf
Date
PREV: Sony KV-HR36M61 (serv.man2) Service Manual

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– 7 –
KV-HR36M90
RM-1007
5.
After the self-diagnosis operation
•
The results display is not automatically cleared.  In case of repairs and after repairs, check the self-diagnosis screen and be sure
to return the results display to “ 0 ”.
•
If the results display is not returned to “ 0 ” it will not be possible to judge a new malfunction after completing repairs.
<Method of Clearing Results Display>
<Method of Ending Self Diagnosis Screen>
•
When ending the self-diagnosis screen completely, turn the power switch OFF on the remote commander or the main unit.
1. Power off (Set to the standby mode)
2.                    b     5    b            +    b                       (Service Mode)  
3. Channel    8   b    0     (Test reset = Factory preset condition)
=/1
AUDIO PROT
(FROM A BOARD)
LOW-B ERR
(FROM A BOARD)
HV-PROT
(FROM D BOARD)
AC-RLY
(TO A BOARD)
OCP
(FROM A, D BOARD)
MAIN MICRO-
COMPUTER
IC0001
12C BUS
YCJ  IC0401
CXA-2170Q
OVP
HV PROT
OCP
AKB
H-ST
OP
V-
S
T
OP
PF
MICRO-
COMPUTER
  IC0002
OVP
(FROM A, D BOARD)
12C BUS
• I2C YCJ RETURN DATA
1
1
1
1
1
1
1
1
LED
BLINKING
TIMES
MG BOARD
SYMPTOM
2
3
4
5
6
7
8
9
10
+B OCP
+B OVP
V-STOP
AKB
LOW-B ERROR
H-STOP
AUDIO PROT
Z DET
HV PRT
– 8 –
KV-HR36M90
RM-1007
+B OCP
If the IC701 Pin 44 (+B OCP DET) is high 2 seconds, turn AC-RELAY low (P-OFF) and make STANDBY
LED blinks twice.
+B OVP
If the IC701 Pin 45 (+B OVP DET) is high 2 seconds, turn AC-RELAY low (P-OFF) and make STANDBY
LED blinks three times.
V-STOP
If the return data Bit0 (VNG) from CXA2150Q is “1” while 2 seconds, turn AC-RELAY low (P-OFF) and
make STANDBY LED blinks four times.
AKB
If the return data Bit2 (IKREF) from CXA2150Q is “0” and there is no change for 20 seconds, make
STANDBY LED blinks five times.
At this time, AC-RELAY continues to high.
LOW-B ERROR
If the IC701 Pin 69 (AC-RELAY) is high and the Pin 43 (LOW-B ERROR DET) is low while 5 seconds,
turn AC-RELAY low (P-OFF) and make STANDBY LED blinks six times.
H-STOP
If the return data Bit1 (HNG) from CXA2170 is “1” while 2 seconds, turn AC-RELAY low (P-OFF) and
make STANDBY LED blinks seven times.
W. D. T.
Observes the watch dock timer (BUS COMMUNICATION ERROR DET) bus communication. If errors are
detected, counts up and reform the bus communication and displays the number of time.
(No LED blinking).
AUDIO PROT
In case of Pin 85 of IC101 (AUDIO PROT DET) turns high 60msec twice at a time, makes AC-RELAY
turns low (Power off) and STANDBY-LED blinks 8 times.
HV-PROT
In case of Pin 33 of IC101 (HV-PROT DET) turns high 10 seconds continuously in normal operation or in
BS fixed Stand-by, makes AC-RELAY turns low (Power off) and STANDBY-LED blinks 10 times.
Z DET
There are two causes for Zero Cross Error.
 Normally the pulse doubled AC power supply frequeny is fed to Pin 8 of IC101. But in case of the
 abnormal pulse is fed, it makes AC-RELAY turns low (Power off) and STANDBY-LED blinks 9
 times.
 In this case, “1” is not displayed in ’9. Z DET’ column in the self-diagnosis mode.
– 9 –
KV-HR36M90
RM-1007
SECTION 2
DISASSEMBLY
2-1. REAR COVER ASSEMBLY
2-3. SERVICE POSITION
2-2. CHASSIS ASSEMBLY
2-4.   SPEAKER BOX ASSEMBLY
1
 Claw
1
 Claw
Chassis assembly
2
1
 Three screws (+BVTP 4x16)
1
 Three screws
     (+BVTP 4x16)
1
 Three screws
       (+BVTP 4x16)
1
 Screw (+BVTP 4x16)
1
 Four screws (+BVTP 4x16)
2
 Rear cover assembly
Turn the chassis assembly 
in the arrow direction, and 
stand it its right side on the
 bottom.
A support
1
 Connector
3
 Speaker box dssenbly
2
 Two screws (+ TWHTP 4x25)
– 10 –
KV-HR36M90
RM-1007
2-6.  BM AND MG BOARDS
2-7. A BOARD
2-5.  UG BOARD
6 Connectors
     (CN1501)
5 U bracket
7 UG board
4 Power cord
1 Five screws 
             (+BVTP 3x12)
1 Screw
             (+BVTP 3x12)
2 Screw 
             (+PSW 3x8)
3
3
BM board
(with MS2 board)
MG board
CN0050
1 Screw
(+PSW3x8)
CN0004
CN0301
CN0005
CN0406
CN0405
CN0401
CN0402
CN3001
3 BM bracket
2 Two screws
(+BVTP3x12)
CN2017
CN2001
CN6006
CN6100 CN6101
CN6010
CN6005
CN6001
RF splitter
4 Four screws
       (+BVTP 3x12)
5 Screw
       (+BVTP 3x12 with washer)
4 Screw
       (+BVTP 3x12)
A board
3 Connectors
        CN2006, 2007, 2011, 2012
2 Connectors
1 Connector
6
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