Sony KV-HG21M85 Service Manual ▷ View online
– 40 –
KV-HG21M81/HG21M85
RM-GA002
5-2.
CIRCUIT BOARDS LOCATION
5-3.
SCHEMATIC DIAGRAM INFORMATION
Note:
•
•
All capacitors are in
µF unless otherwise noted.
•
All electrolytic capacitors are rated at 50V unless otherwise
noted.
noted.
•
All resistors are in ohms.
k
k
Ω = 1000Ω, MΩ = 1000kΩ
•
Indication of resistance which does not have rating
electrical power is as follows.
electrical power is as follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
Rating electrical power 1/4W (CHIP: 1/10W)
•
: nonflammable resistor.
•
: fusible resistor
•
¢
: internal component.
•
: panel designation or adjustment for repair.
•
All variable and adjustable resistors have characteristic curve B
unless otherwise noted.
unless otherwise noted.
•
Readings are taken with a color-bar signal input.
no mark
no mark
: Common
( )
: PAL
[ ]
: NTSC 3.58
•
Readings are taken with a 10 M
Ω digital multimeter.
•
Voltage are dc with respect to ground unless otherwise
noted.
noted.
•
Voltage variations may be noted due to normal
production tolerances.
production tolerances.
•
All voltage are in Volt.
•
✽
: Cannot be measured.
•
Circled numbers are waveform references.
•
: B +bus.
•
: B –bus.
•
k
: signal path.
Note: The reference number which starts with Wxxx
(eg: W003) indicates a wire to wire connection.
Note: Components marked as XX are not fitted on this
model.
Reference information
RESISTOR
RESISTOR
: RN
METAL FILM
: RC
SOLID
: FPRD
NONFLAMMABLE CARBON
: FUSE
NONFLAMMABLE FUSIBLE
: RS
NONFLAMMABLE METAL
OXIDE
OXIDE
: RB
NONFLAMMABLE CEMENT
: RW
NONFLAMMABLE
WIREWOUND
WIREWOUND
:
✽
ADJUSTMENT RESISTOR
COIL
: LF-8L
MICRO INDUCTOR
CAPACITOR
: TA
TANTALUM
: PS
STYROL
: PP
POLYPROPYLENE
: PT
MYLAR
: MPS
METALIZED POLYESTER
: MPP
METALIZED POLYPROPYLENE
: ALB
BIPOLAR
: ALT
HIGH TEMPERATURE
: ALR
HIGH RIPPLE
Note:
The component identified by shading and
mark
mark
! are critical for safety. Replace only with
part number specified.
Note: “A” board schematic diagram is divided into 7 blocks.
Each block is named by its function and block “number”.
eg: Processor (Block 001)
Joint connection between boards can be identified using
the block number followed by the grid's guide.
eg: -<PWR-OFF MUTE
002 : 4E
Meaning: Block 001 joint "PWR-OFF MUTE" is connected
to Block 002 joint "PWR-OFF MUTE" located at grid 4E.
eg: Processor (Block 001)
Joint connection between boards can be identified using
the block number followed by the grid's guide.
eg: -<PWR-OFF MUTE
002 : 4E
Meaning: Block 001 joint "PWR-OFF MUTE" is connected
to Block 002 joint "PWR-OFF MUTE" located at grid 4E.
1
CV board
3
J Board
2
A Board
4
P Board (not used for this model)
C219
C221
C218
1
2
3
CN201
3D
OUT+
GND
G
ND/
3D
OUT-
C217
C212
C210
1
2
3
CN202
SP
GND
GND
C214
C216
C2636
35V
C2648
D2625
R2645
FPRD
1
R2646
C211
1PS226-115
D211
D2626
C205
L2601
1
2
3
4
CN200
4P
SP L
GND
GND
SP R
47
R235
FPRD
C220
FPRD
R2647
C228
1
2
3
4
5
CN203
NC
SPL/S
P
GND
GND
SPR
C223
C209
5A
PS2601
C215
FB2602
FB2607
Q201
Q202
JW2001
R202
C201
330
R219
R228
R220
C237
R222
C202
C236
JR1256
CHIP
R236
C240
RN-CP
R221
C239
R224
C231
C224
RN-CP
R215
R225
R237
PT
C232
C230
500V
B
C2631
RN-CP
R216
R218
C235
CH
RN-CP
R242
R232
CH
C234
R205
R217
RN-CP
R241
R223
R229
RN-CP
R230
CHIP
C213
B
C2602
C227
C2601
C203
0:CHIP
R212
R238
R240
CHIP
R243
C241
J201
2
7
3
5
1
4
9 6
8
W055
W062
J200
1 2
3 4 5
6
7
L201
PW
R-O
F
F-
M
U
T
E
001:
5A
9V
001:6A;004
:2C;
SCA
R
THP
L
001:
13E
;0
06:
5G
M
ON-MUT
E
-A
UDI
O
006:
8A
9V
A
UDIO-
M
UTE
001:
4L
A
UDI
O_1
003:
10C
LS
L-
AU
D
IO
001:
12A
A
UDI
O_2
003:
10C
L
SR
-A
UDI
O
001:
12A
A
UDI
O_GND
003:
10C
M
O
MU
TE-AUDI
O
001:
7A
A
UDIO-
STDBY
001:
1F
8
1
E
F
2
F
4
3
B
5
A
E
B
D
6
C
C
7
D
A
8
1
2
3
4
9
7
6
5
10
11
12
IC200
OU
T
C
/N
C
IN
R/
N
C
RF
S_GND
IN
L
IN
C/
N
C
OU
T
L
MU
T
E
PW_GND
VCC
ST
B
Y
OU
T
R
/N
C
R213
R214
SCA
R
THP
R
001:
13E
RN-CP
R244
MA111-TX
D201
MA111-TX
D202
MA111-TX
D203
MA111-TX
D204
MA111-TX
D205
D206
D207
MA111-TX
D208
D209
D210
MA111-TX
D212
MA111-TX
D213
MA111-TX
D214
D215
C242
JR1257
R233
J202
1
2
3 4
C200
B
C204
C206
C207
C208
R200
RN-CP
R203
R201
R204
R207
R208
R210
R211
R239
RN-CP
Q204
Q205
R226
R234
R227
C226
KRC102S
Q200
KRC102S
Q206
1PS226-115
D200
AUDIO
(Block 002)
A
0:CHIP
0:CHIP
006:6A;005
:3E
;
003:
10D
;002:
6D
9V
9V
9V
B-BX1S(06)14063-CKD-A...(Block 002)-HG21M50
0.1UF
50V
2200UF
50V
10UF
50V
0.047UF
50V
0.047UF
50V
470PF
50V
50V
470PF
50V
470PF
10UH
90V
10K
1/10W
10K 1/10W
330
1/4W
1/4W
1K
1/10W
47
1/4W
1/4W
100
1/10W
100
2.2K
1/10W
2.2K
1/10W
1/4W
10K 1/
4W
*
*
*
*
*
*
*
*
*
1UF
6.3V
100UF
50V
1000UF
25V
22UF
50V
1000UF
25V
22UF
50V
220UF
16V
470PF
1000UF
50V
1000UF
1/10W
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
5-3-2. A Board --- (Block 002)
RM-GA002
KV-HG21M81/M85
KV-HG21M81/M85
RM-GA002
- 43 -
- 44 -
CN602
AC IN
AC IN
C621
C635
C647
C638
C639
C634
D608
D614
C650
D629
JW1653
5
1
2P
CN601
DGC
DGC
1
2
CN600
DGCT
DGCT
7.5
JW1603
7.5
JW1604
7.5
JW1605
JW1611
C658
R653
5
JW1654
1
2
3
4
IC
60
3
D3SB60F3
D604
RY600
16V
C649
C630
L602
16V
C668
JW1632
1
2
D605
10
JW1662
10
JW1663
FH603
C632
D63
3
S3L20UF4
D624
D620
JW1630
JW1631
JW1633
FB605
C665
FB610
TP601
FN155
Q605
R651
11EQS10-TB5
D622
17.5
JW1602
L600
L601
2W
RS
R620
2W
RS
R619
450V
C611
D636
5
JW1666
5
JW1667
C637
C682
5
JW1683
1
23
4
T604
1
23
4
T605
10ERB20-TA2B5
D617
10ERB20-TA2B5
D619
VCC
GND
OUT
BA18BC0FP-E2
IC607
10ERB20-TB3
D623
C
O
G
SE135N-LF38
IC605
MA2ZD14001S0
D637
C685
R639
JW1612
JW1613
JW1614
JW1615
JW1616
JW1617
JW1618
TP602
10
JW1660
10
JW1661
1
2
3
4
5
STR-F6267S LF1357
IC601
C624
5A
PS602
5A
PS603
5A
PS604
5A
PS605
I
O
G
IC606
1 2 3 4
KIA78R09API
IC602
FB601
10ERB20-TA2B5
D618
Q601
Q608
Q609
FB603
275V
PP
C660
275V
PP
C666
D615
Q606
R668
RN-CP
R647
R631
B
C623
500V
E
C606
220
R621
C675
CH
C644
RN-CP
R667
0:CHIP
R625
C628
R
1
R656
500V
E
C609
C680
C612
500V B
C626
R669
500V
E
C610
RN-CP
R645
RN-CP
R623
JR1602
1W
8.2M
R650
RN
R618
B
C674
R636
C669
C661
10
R627
RN-CP
R609
C683
C679
R659
C673
CH
C616
R658
C619
PT
25V
B
C672
RN-CP
R654
500V
E
C605
10V
C686
F
500V
B
C653
R665
RN-CP
R602
RN-CP
R635
RN-CP
100
R655
R67
5
500V
B
C652
R672
RN-CP
RN-CP
RN
R612
10V
C643
F
THP600
500V B
C654
R660
R666
RN-CP
R646
RN-CP
R634
R661
16V
F
C678
R640
16V
B
C662
RN
R624
R633
C646
CHIP
JR1601
250V
5A
F600
SB360-S
D639
1A5G
D602
1A5G
D603
275V
PP
C602
VDR600
W018
W002
W024
FH601
FH602
RU4AM-T3
D621
I
O
COM
KIA7805API
IC604
1.8V_AUDIO
001:8L;001:13H
1.8V_MAIN
001:8L
AUDIO_GND 002:3E
AUDIO_1 002:3E
HS
-A
00
7
90
0:
2C
3.3V
001:7A;004:2B
11V
004:2C;003:10C
5V
001:7A;004:2C;006:4A;005:2E
11V
004:2C;003:2C
9V
001:6A;004:2C;006:7A;005:3E;002:2E;002:6D
HOLD_DOWN
004:11F
AUDIO_2 002:3E
+B
001:11A;004:2C;005:4E
DGC-RELAY
001:6L
STBY_SW
001:6L;004:2C;005:5D
10W
RB
R616
10W
RB
R638
S600
F
5
C
2
A
D
4
A
1
H
E
E
12
G
B
D
11
8
C
10
7
H
B
F
9
6
G
3
1
23
4
T600
MA111-TX
D600
MA111-TX
D638
FB608
250V
E
C687
W065
W066
1
2
2
CN603
AC IN
AC IN
AC IN
1
2
2
CN604
AC IN
AC IN
AC IN
12.5
JW1665
K1010HB01
PH600
16V
C641
D635
250V
C622
E
250V
C625
B
250V
C657
B
250V
C670
B
7
3
16
17
12
14
13
18
15
8
10
11
5
9
T602
1
2 T603
5V
(Block 003)
POWER SUPPLY
A
DGC
B-BX1S(06)14063-CKD-A...(Block 003)-HG21
3.3V
11V
1.8V
0.1UF
0.0047UF
0.0047UF
0.0047UF
0.0047UF
330UF
220PF
50V
0.15UF
50V
4.7UF
50V
2200PF
0.0033UF
50V
330PF
470PF
1500PF
2KV
2200UF
100UF
4.7UF
470PF
50V
100UF
470PF
470PF
470PF
330PF
0.22UF
0.1UF
0.1UF
100UF
330PF
0.01UF
2.2UF
470PF
50V
4.7UF
4700PF
RD5.1ESB2
RD5.1ESB2
MTZJ-T-77-15
10ERB20-TA2B5
RD5.1ESB2
M
T
Z
J-
T
-77-15
1.1UH
0UH
0A
0V
0A
0V
PQ018EF
01
SS
H
KIA78D33PI
47UH
47UH
22UH
90V
90V
90V
90V
4.7K
1/10W
10K
1/10W
1.5K
1/4W
1
18K 1/4W
0.22
0.27
1/4W
18K
1/10W
2.2K
1/4W
2.2
4.7K
1/10W
10K
1/10W
2.2K
1/4W
0.68
150K
1/16W
1.5K
1/10W
1K
1/10W
1/10W
1/4W
1K
1/10W
33K
1/10W
*
1500PF
1.2KV
47UF
50V
3300UF
35V
35V
470UF
25V
470UF
50V
100UF
16V
100UF
16V
100UF
16V
470UF
16V
330UF
160V
1000UF
16V
220UF
16V
UDZSTE-173.6B
2SC3052EF-T1-LEF
2SC3052EF-T1-LEF
2SC3052EF-T1-LEF
2SC3052EF-T1-LEF
1/4W
4.7K
1/4W
120K
1/4W
220K
1/4W
470K
1/4W
560K
1/4W
*
*
5-3-3. A Board --- (Block 003)
RM-GA002
KV-HG21M81/M85
KV-HG21M81/M85
RM-GA002
- 45 -
- 46 -
Click on the first or last page to see other KV-HG21M85 service manuals if exist.