Sony MHC-V818 Service Manual ▷ View online
– 97 –
• IC601 DISPLAY CONTROL ( TMP87CM74AF)
Pin No.
Pin Name
I/O
Function
1 to 6
LED3 to LED8
O
LED driver output
7
VSS
–
Ground
8
X OUT
O
9
X IN
I
10
RESET
I
Reset signal input from main controller
11
LED9
O
12
LED10
O
13
TEST
I
Connected ground
14 to 18
LED11 to LED15
O
LED driver output
19
VOL A
I
20
VOL B
I
21
JOG A
I
22
JOG B
I
23
SCL
O
Serial clock input from master controller
24
SDA
O
Serial data input from master controller
25
L. SEL
O
LED select signal output
26 to 29
KEY 0 to KEY 3
I
Key input
30
MODEL
I
Version select signal input
31
(LED 16 OPEN)
–
LED driver output (Not used)
32
L + R
I
Spectrum analyzer (high frequency) input
33
SIRCS
I
Remote commander signal input
34 to 37
SPEANA 1 to SPEANA 4
I
Spectrum analyzer input
38
VASS
–
Ground
39
VAREF
I
Analog reference voltage input
40
VDD
–
Power supply (+5V)
41 to 53
GR 1 to GR13
O
FL gride signal output
54 to 77
SEG 1 to SEG 24
O
FL segment signal output
78
VKK
–
Power supply (–25V) for FL segment signal output
79
LED 1
O
80
LED 2
O
X’tall (8MHz)
• Abbreviation
FL : Fluorescent indicator tube
FL : Fluorescent indicator tube
LED driver output
Rotary encoder (S602) pulse input
Rotaly encoder (S601) pulse input
LED driver output
– 98 –
• IC801 PANEL CONTROL ( TMP87CH48DF)
Pin No.
Pin Name
I/O
Function
1
VSS
–
Ground
2
X OUT
O
3
X IN
I
4
RESET
I
Reset signal input
5
MUTE
I
Mute ON/OFF selection input
6
MODE_0
I
7
TEST
–
8
MODE_1
I
9
YB_CLK
O
10
NAR/YB_RDY
I
Connected to VDD
11
MSM6654/BSY
I
Busy signal input for IC851 (MSM6653A)
12
MSM6654/RST
O
Reset signal output for IC851 (MSM6653A)
13
MSM6654/CH
O
Channel signal output for IC851 (MSM6653A)
14
MSM6654/DATA
O
Data signal output for IC851 (MSM6653A)
15
MSM6654/CLK
O
Clock signal output for IC851 (MSM6653A)
16
MSM6654/LAT
O
Latch signal output for IC851 (MSM6653A)
17
YB_D0
I
Connected to ground
18
IC2 CLK
I
Serial clock input from master controller
19
IC2 DATA
I
Serial data input from master controller
20
YB_D3
I
21
UART RX
I
Connected to ground
22
UART TX
O
23 to 26
NC
O
Connected to ground
27
JOG_A
I
28
JOG_B
I
29
SIRCS
I
Remote commander signal input
30
VASS
–
Ground
31
VAREF
I
Analog reference voltage input
32
DVDD
–
Power supply (+5V)
33
BPF/LOW
I
Spectrum analyzer input
34
BPF/LOW-MID
I
Connected to ground
35
BPF/HIGH-MID
I
Connected to ground
36
BPF/HIGH
I
Spectrum analyzer input
37
L + R
I
Spectrum analyzer (high frequency) input
38
KEY/0
I
39
KEY/1
I
40
KEY/2
I
Connected to VDD
41 to 56
NC
O
Not used
57 to 60
GND
–
Ground
61
BPM_LED_B
O
62
BPM_LED_A
O
63
BOMBER_LED
O
64
ON/OFF_LED
O
X’tall (8MHz)
Connected to ground
Rotary encoder (S601) pulse input
LED Drive output
Key input
– 99 –
SECTION 9
EXPLODED VIEWS
9-1. CASE SECTION
NOTE:
• Items marked “*” are not stocked since they are
• Items marked “*” are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
should be anticipated when ordering these items.
• The mechanical parts with no reference number in
the exploded views are not supplied.
• Hardware (# mark) list and accessories and packing
materials are given in the last of this parts list.
• Abbreviation
EA
: Saudi Arabia model
HK
: Hong Kong model
SP
: Singapore model
MY
: Malaysia model
TW
: Taiwan model
IA
: Indonesian model
The components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
6
1-693-421-11 TUNER (FM/AM)
7
4-991-781-01 EMBLEM (VCD)
8
1-773-009-11 WIRE (FLAT TYPE) (15 CORE)(150mm)
9
1-775-212-11 WIRE (FLAT TYPE) (23 CORE)
10
1-690-589-31 WIRE (FLAT TYPE) (13 CORE)
* 11
A-4414-188-A VIDEO BOARD, COMPLETE
M901
1-763-048-21 FAN, D.C.
1
4-996-816-01 CASE
2
3-363-099-71 SCREW (CASE 3 TP2)
3
3-363-099-11 SCREW (CASE 3 TP2)
4
4-900-740-01 PANEL, LOADING
* 5
4-999-907-01 PANEL, BACK (SP,MY)
* 5
4-999-907-11 PANEL, BACK (EA)
* 5
4-999-907-31 PANEL, BACK (HK)
* 5
4-999-907-41 PANEL, BACK (TW)
* 5
4-999-907-51 PANEL, BACK (IA)
1
2
2
3
3
4
7
5
9
11
10
8
6
#2
#2
#3
#3
#2
#2
#2
#2
#5
#1
#2
#2
#2
#2
#2
CDM38L-5BD24AL
Front panel
M901
#2
– 100 –
9-2. CHASSIS SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
57
4-965-822-01 FOOT
!
58
1-569-007-11 ADAPTOR, CONVERSION 2P (IA)
!
58
1-569-008-21 ADAPTOR, CONVERSION 2P (SP,MY,EA,TW)
!
58
1-770-019-11 ADAPTOR, CONVERSION PLUG 3P (HK)
!
59
1-558-943-41 CORD, POWER (IA)
!
59
1-575-651-21 CORD, POWER (SP,MY,EA,HK,TW)
60
1-783-898-11 WIRE (FLAT TYPE) (15 CORE)
!
T501
1-431-828-11 TRANSFORMER, POWER
* 51
A-4407-260-A POWER BOARD, COMPLETE
(Indonesia Product)(SP,MY,EA,HK,IA,TW)
51
A-4407-498-A POWER BOARD, COMPLETE
(Malaysia Product)(MY)
* 52
1-668-274-11 TRANSFORMER BOARD
* 53
A-4414-035-A MAIN BOARD, COMPLETE
54
1-773-041-11 WIRE (FLAT TYPE) (17 CORE)
55
3-703-244-00 BUSHING (FBS001), CORD (SP,MY,EA,HK,TW)
55
4-966-266-01 BUSHING (S) (FBS002), CORD (IA)
* 56
4-988-533-01 HOLDER, PWB
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
line with mark ! are critical for safety.
Replace only with part number specified.
51
52
53
54
60
55
#5
#5
#5
#5
T501
not supplied
not supplied
#5
#4
#6
#6
#6
56
57
58
(SP,MY,EA,TW)
58
(HK)
58
(IA)
59
(SP,MY,EA,
HK,TW)
59
(IA)
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