Sanyo HT-F450 User manual

Service Manual AV Surround Processor
Contents
IFILE No. I
tiT-F450 (AU)
Specifications ................................................................... 1IC Block Diagram &Description .......................................8
.:. Removal and Installation .................................................. 1Block Diagram .................................................................. 11
System Connection ..............................~...........................2 Schematic Diagram (Main Amplifier) ............................... 12
Service Mode ...................................................................3Wiring Diagram (Main Amplifier) ...................................... 14
Exploded View (Cabinet &Chassis) ................................4Schematic Diagram (Front) .............................................. 16
Parts List ..........................................................................5 Wiring Diagram (Front) ..................................................... 17
“” This service manual consists of “HT-F450U” (Main unit), “RB-HT47° (Remote control),
“SX-CE450” and “SX-SR450” (Speaker system). REFERENCE No. SM580786

. . . )
SPECIFICATIONS
,.. . . -.
Output power:
Oenter amplifien 15 Watts (at 4ohms, 10 0/0 distortion)
Surround Amplifiec 15 Watts x 2 (at 4ohms, 107. distortion)
Inputs
AV1 lN/AV2 lN/AV3 IN ‘AUDIO” .........300 mV/47k ohms
AVI INIAV2 lN/AV3 INUVIDEO” ........... 1Vp-p /75 ohms
LINE IN “AUDIO” ................................. 300 mV/ 47k ohms
outputs
AV2 OUT “AUDIO” .............................. 300 mV 147k ohms
PROCESSOR OUT “AUDIO” ..............1 V/ lk ohm
AV2 OUT MONITOR OUT “VIDEO” .... 1Vp-p /75 ohms
CENTERBURROUND SPEAKERS ...4 ohms
Power requirements ...................... AC 230- 240V, 50 Hz
Power consumption ...................... 60 Watts
Dimensions (W xHxD) ................270 x 80 x 330mm
Weight ........................................... 3.8 kg
Specifications subject to change without notice.
.
.. ,,.. ;“.,,.’-.,..
... . ..- ..-.’- -“.-:-”
.. .
Speaker systems
Center speaker (SX-CE450)
Unit Used
Full range ................................. 10 cm cone type
Maximum music power
handling capacity ........................... 30 Watts (peak)
Nominal impedance .......................4ohms
Dimensions (W xHxD) .................270x 130x 145mm
Weight ............................................ 1kg
Surround speakers (SX-SR450)
Unit Used
Full range ................................. 10 cm cone type
handling capacity ...........................30 Watts (peak)
Nominal impedance .......................40hms
Dimensions (W xHxD) .................180 x 130 x 130mm
Weight (per speaker) .....................0.7 kg (per speaker)
..
“Dolb~, the double-D symbol ❑aand “PRO LOGIC” are trade-
mark of Dolby Laboratories Licensing Corporation. Dolby Noise
Reduction system is manufactured under license from Dolby
.._
Laboratories Licensing Corpora~ion.
REMOVAL AND INSTALLATION
●Disconnect the power cord’s plug from the electrical outlet.
●All wiring should be returned to the original position after work is completed.
●First ha~e ready many the new FIXERS (614 129 4971) for replacement.
●Arrange the lead wires so that they are not near the heat sink.
WIRING “LAYOUT ---
FIXER
./—
u u uI1
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,.
,’

SYSTEM CONNECTION
Center and Surround Speaker Connections
SX-CE450 SX-SR450
Center speaker SX-SR450
Rightsurround Leftsurround
speaker speaker
L
-------------- 
SERVICE MODE
‘o enter the key service mode, first simultaneously press the SOURCE and SURROUND MODE buttons. This accesses the service
node entry state. As the service mode entry state is discontinued after 1second elapses, the unit will enter aservice mode only if the
lext key is pressed within 1second.
1. Checking the key input signal connections
●To enter this mode, press MASTER VOL UP button during the service mode entry state.
●When the unit enters this mode, 3CENTER MODE LEDs and all of the VOLUME LEDs light.
●In this mode, each time one of the keys listed below is pressed, only the LED corresponding to apressed key lights.
●To release this mode, press the POWER button on the unit or remote control.
IBUITON IDISPLAY I
CENTER UP SURROUND 1
CENTER DOWN 3-CH LOGIC
SURROUND UP Standby
SURROUND DOWN SURROUND 2
SURROUND MODE LD (AV3)
CENTER MODE VIDEO (AV2)
SOURCE TV (AV1 )
MASTER VOL UP DOLBY PRO LOGIC
MASTER VOL DOWN LINE
TABLE 1: Corresponding buttons and displays in the button checking mode
., .-.
,,”
2. Checking the connection of the connectors
To enter the port connection service mode, connect the 14.7 kohms resistor to the pin 38 and ground to earth, then’ restart. The
NORMAL and WIDE LEDs light. If failed, the indications listed below are displayed on the VOLUME LEDs section. If the pott connection
service mode is OK (all of the VOLUME LEDS lights), the unit enters the key service mode by pressing the POWER button on the
remote control. The 14.7 kohms resistor must be disconnected until pressing the POWER button on the remote control.
To release this mode; turn the power off.
PIN PORT NAME Uo DIODE RESISTOR DISPLAY REMARKS
62 P12 A.MUTE OUT A00101
63 P13 F_MUTE OUT A01001
54 PEO PWR_lN IN 00001 Reverse input
45 PA7 PWR_RY OUT A00110
60 Plo C_MUTE OUT A01010
61 Pll S_MUTE OUT A01101
50 PB4 SUR_CE IN D00010
46 PBO FC OUT A00111
53 PB7 CLK OUT A01011
47 PB 1FB IN D00011
52 PB6 DATA OUT A01000
48 PB2 FA OUT A11000
51 PB5 VOL_CE IN D00100
All are OK 00000
The indication “A”in the DIODE section means that the output pori side is the anode side.
The indication “D”in the RESISTOR section, means that the pull down resistor is used.
TABLE 2: Checking of the connection of connectors
NOTE: Example display when failing to enter the port connection service mode
As the most lower LED of the VOLUME LEDs is assigned to bit O,the next lower LED is assigned to bit 1, the third lower LED
is.<ssigned to bit 2and the fourth lower LED is assigned to bit 3, the corresponding numeral is displayed.
~4DlSPLAY NO. VOLUME LEDS SECTION
00001 Only the most lower LED lights.
00101 The most lower LED and the third lower LED light.
..
-3-

EXPLODED VIEW (CABINET &CHASSIS) /\
‘Y “k-
2“
PARTS LIST PRODUCT SAFETV NOTICE
Each precaution in this manual should be followed during sewicing. Components identified with the IEC symbol Ainthe parts list
and the schematic diagram designated components in which safety can be of special significance. When replacing acomponent
identified by A, use only the replacement pans designated, or parta with the same ratings of resistance, wattage or voltage that are
designated in the parls list in this manual. Leakage-current or resistance measurements must be made to determine that exposed
parts are acceptably insulated from the supply circuit before returning the product to the customer.
CAUTION: Regular type resistors and capacitors are not fiited. To know those values, refer to the schematic diagram.
Regular type resistors are less than 1/4 Wcation type and Oohm chip resistors.
Regular type capacitors are less than 50 Vand less than 1000 IIF type of Ceramic type and Electrical type.
N.S.P: Not available as service parts.
PACKING &ACCESSORIES FRONT P.W.BOARD ASSY
Rsf. No. Parts No.
645 011 9095
614 284 5172
614 284 5189
645 011 9736
614 286 4647
614 286 4517
614 286 2902
614 286 2919
645 009 9502
614 262 4012
645 014 5575
645 01S 9302
645 005 7007
614 265 0107
CABINET &CHASSIS
Rsf. No. Parts No.
1614 266 4326
2 614 283 2554
36t 4 263 2466
4614 283 2493
5614 263 2509
6614 286 4269
7614 272 2662
8614 275 2234
9 614 129 1901
10 614 249 2352
.a> FIXING PARTS
Ref. No. Parts No.
Y1 411 021 6603
Y2 4t t021 3503
Y3 411 021 6405
Y4 411 020 9902
Y5 411 021 6405
Y6 411 001 3905
Y7 411 021 6405
Y8 411 021 6405
Y9 411 021 6405
Yto 411 021 6405
Yll 411 020 8905
Y12 411 021 3503
Y13 411 021 3503
ELECTRICAL PARTS
Ref. No. Parts No.
51 A614 256 5265
52 645 020 1523
53 A423 016 9603
54 A423 016 9605
55 614 285 7533
-A645 020 6683
zA614 2S3 3476
“’\.J
Description Ref. No. Parts No.
POLY SHEET-950X300 NC, SET 71
CUSHION TOP ❑R404
CUSHION BOTTOM BR401
POLY BAG-250X350 NC, INST BR402
OWNERS MANUAL CN430
CARTON CASE 04300
ASSY,BOX,SPEAKER (SX-CE450) D4301
ASSY,BOX,SPEAKER (SX-SR450) 04302
SCREW, SPEAKER, HANG or
CORD, RCA D4303
CABLE,VIDEO or
REMOTE CONTROL, R8-t+747(F)rXE.SH D4304
BAITERY LID, REMOTE CONTROL or
ASSY,WIRE, SYSTEM CONTROL D4305
or
D4307
Description D4306
ASSY,PANEL,FRONT
DEC,WINOOW, DISPLAY
BUtiON, VR
BuTTON, FUNCTION
BUTTON, POWER
ASSY,CABINET,BOT70M
CABINET
MOUNTING,PCB, PWB FIX
FIXER, AC CORD --
BRACKET-E, HEATSINK PWB
. . . .
.’
Dascrlption
SCR S-TPG BIN 3x8, CABINET
SCR S-TPG BIN 3X1 O. FRONT,PWB
SCR S-TPG BIN 3X6, FRONT, BOITOM
SCR S-TPG BRZ+FLG 3X6
SCR S-TPG BIN 3X8. PCB,BO~OM
SCR S-TPG BIN 4X6, TRANS
SCR S-TPG BIN 3X8, RCAJRGB SOCKET
SCR S-TPG BIN 3X6, SPEAKER SOCKET
SCR S-TPG BIN 3X8, BRACK~,HEATSINK
SCR S-TPG BIN 3X8, BRACKET,PWB
SCR S-TPG BRZ+FLG 3X1O, POWER IC
SCR S-TPG BIN 3X1O, 3-REG IC
SCR S.TPG BIN 3X1 O, STOPPER
Description
POWER CORD
FLEXIBLE FLAT CABLE
FUSE 250V 0.63A
FuSE 250V 0.4A
HEAT SINK
TRANS,POWER
PwB.PT.1
-4- . .
D4309
04310
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D4312
D4313
D4314
D4315
D4316
D4317
04318
04319
D4320
04321
04322
D4323
D4324
D43Z5
04326
04327
D432s
IC430
L4341
04301
or
or
or
or
or
04302
or
or
or
or
or
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or
5-
614 263 3155
614 2S3 2565
614 263 2592
614 263 8099
645 012 5506
407 099 5402
407 099 5402
407 007 9904
407 012 4406
407 007 9904
407 012 4406
407 007 9904
407 012 4406
407 007 9904
407 012 4406
407 065 5009
407 173 8305
407 173 8305
407 173 8305
407 173 8305
407 173 8305
407 173 8305
407 173 6305
407 173 8305
407 173 8305
407 173 6305
407 173 6305
407 109 4104
407 109 4104
407 109 4104
407 109 4104
407 109 4104
407 109 4104
407 109 4104
407 109 4104
407 109 4104
407 109 4104
x 410 265 8602
645 001 55t9
405 004 4601
405 003 5401
405 006 1905
405 006 1806
405 002 1305
405 002 1107
405 004 4601
405 003 5401
405 006 1905
405 006 1e06
405 002 1305
405 002 1107
405 019 3903
405 017 9709
Description
ASSY,PWB,FRONT
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HOLDER,LED
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SOCKET,FPC 17P,MAIN
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LED SLP-335C-51
LED SLP-335C-51
LED SLP-161C-51-B :
LED SLP-181C-51-B I
LED SLP-181C-51 -B
LED SLP-181C-51-B :
LED SLp-161 C-51 -B
LED SLP-161 C-51 -B
LED SLP-161C-51-B
LED SLP-lelC-51-B
LED SLP-161C-51-B
LED SLP-ISIC-51 -B
Ic CXPS441 2-1030
INDUCTOR.47U K
TR 2SA608-F-SPA
TR 2SA1317-U
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TR2SA1048.Y
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TR 2SC536-G-SPA
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PARTS LIST /IC BLOCK DIAGRAM
Ref. No. Parts No. Description
or 405 021 0600 TR2SD1012-G-SPA
Q4851 405 033 6805 TR2SD1468S-S
or 405 021 0600 TR2SD1012-G-SPA
IC402, IC451 ,IC453, IC455, IC603, IC604 NJ M4558L
(Operation Amplifier)
R4960 A401 058 2501 OXIDE-MT 100JA lW r I
POWER TRANSFORMER P.W.BOARD ASSY
@d
VOUT 1 1 8VCC
Ref. No. Parts No. Description
74 614 283 3162 ASSY,PWB,PT.2 -+
CN497 614 020 1246 SOCKET,5P,MAIN
CN498 614 285 0114 ASSY,WIRE, TO MAIN VH5P VIN+l 27VOUT2
FPC03 645 006 4760 HOLDER,FUSE
FPC04 645 006 4760 HOLDER,FUSE +-
L4970 ~614 229 0422 INDUCTOR,FERITE
WR497 614 017 8203 TERMINAL BOARD vlN-1 36vlN-2
WR498 614 017 8203 TERMINAL BOARD
REGULATOR P.W.BOARD ASSY
Ref. No. Parts No.
75 614 286 4821
CN494 614 020 6562
or 614 223 9216
D4940 407 099 6409
PR494 z% 645 013 7075
Q4940 ~405 095 1602
or A405 095 1701
I I I
Description
ASSY,PWB,REG
SOCKET,4P,MAIN
SOCKET,4P,MAIN
ZENER DIODE MTZJ1 lB
PROTECTOR,0.5A 125V IC450 HA1 18104 (Switch for VCR)
TR 2SD2061-E
TR 2SD2061-F 3S 3CONT 3A _GND 20UT Vref .20UT 2CONT
......-. .. . ... ... . . ... .. .
REGULATOR +61 P.W.BOARD “ASHY .;...-..-. ..-.-u.,:-: ..:.:.
Ref. No. Parts No. -Description .. ,.
.
76 614 286 4838 ASSY,PWB,REG+B1 ..:.
CN495 614 020 6555 SOCKET,3P,MAIN . .
or 614 223 9216 S0CKET,3p,~A1~ -.;,
Q4950 ~405 053 0906 TR 2SD1668-Q -
. .. . . . . . . .
or ~405 022 77o7 TR 2SD16Q8-R _- .~~ .- _---- ‘~- .
or ~405 022 7806 TR 2SD1668-- .“. ~
,-, . .. . . . . . .. .
REGULATOR +62 P.W.BOAR,D ‘ASSY -,.-. :. .
Ref. No. Parts No. Description “- ,““
77 614 286 4845 ASSY,PWB,REG+B2
Q4955 ~405 053 0906 TR 2SD1 668-Q -
or ~405 022 7707 TR 2SD1668-R
or A405 022 7806 TR 2SD1668-S
I. . . . .. -- -- ...
..— .- ..-. ,,
I
. . . . . . . .
30UT NC 1AlCONT lB V= 2A
=sJ” -
-.
IC452, IC454TC9213P (Electric Volume) ‘- -
1I
IOUT1 OUT1 -
IN1 IN1
L-CH- —R-CH
A-GN13 A-GND
OUT2 OUT2
IN2 IN2
GNO STB
-8-
. . .

IC BLOCK DIAGRAM .. .
,-:.
‘, ... . ..
IC401 BU4052BC (Dual 2-input 4-ch Analog Multiplexer/De-Multiplexer)
XCHANNELS lt4KXJT
/32101
(a Voo
~1
BCOMMON
OUT/lN
A@= BINARY
TO
B* ~og;gloN 10F4
OECODER
WmH
‘NH @---- INHIBIT
II
.0123z
\ /
YCHANNELS lN/Oi.rr
IC430 CXP84412-103Q (Micro Processor)
x
Y
OY 1
2Y 2
Y.
COMMON 3
3Y 4
lY 5
INH 6
VEE 7
u-16
-15
-14
-13
-12
-11
I
-lo
-9
VDO
2x
lx
tOMMON
ox
3x
A.
B,.
.“-
No. Name 1/0 Description
1PF3 oNot used
2PF4 0. Not used
3PF5 oNot used
4PF6 oNot used
, ,
li-
5PF7 I0INot used
6VOL LED5 OiVolume LED [Max MH=Active) 1
No. IName 1/0 Description
41 ]PA3 oNot used :“’.s$ !’; :3 -L>.., ;tP:- .j? ?J.’-%.%
42 ]PA4 oNot used . .. -., .. ?
43 IPA5 oNotueed ,-, --- s~
44 SP.RY oSpeaker relay ,... -,,. ,
45 PW.R’f oPower relay -. .:
46 FUNCT.C oFunction select
12 PD6 oNot used
13 PD7 oNot used
14 PRO LOGIC oLED (L=Active)
15 3CH LOGIC oLED (L=Active)
~
OVIDEO function LED (L=Active)
J
21 LINE oLINE function LED (L=Active)
22 NORMAL oNormal LED (H=Active)
23 WIDE oWide LED (H=Active)
24 PHANTOM oPhantom LED (H=Active)
25 STANDBY oStandby LED (L=Active)
26 PH4 oNot used
27 PH5 oNot used
28 PH6 oNot used
, ,
29 IPH7 IOINot used
30 IRESET IReset inout
31 EXTAL Clock Generator
32 XTAL Clock Generator
33 Vss Ground
34 TX Not used
35 TEX Not used
36 AVSS A/D converter
37 AVREF ‘- A/D converter for standerd voltage input
38 KEY. OIKey input
39 KEY. 1IKey input
40 V-CHK IDetect for stoppage failure of electricity
-.
47 IFUNCT.B oFunction select “”
48 ]FUNCT.A oFunction select -
49 PB3 oNot used
50 SUR.CE oSurround IC chip enable control .‘““.
51 VO.CE oVolume IC chip enable control
52 DATA oData
53 CLK oClock
54 POWER IN IPower input
55 Pw.sw IPower switch input
56 IR IRemote control signal
57 FUNCTION.SEL IFunction select (L=TV, H=LINE)
58 PE4 oNot used
!59 IPE5 oNot used
60 jC.MUTE oCenter Muting (H=Active)
61 iS.MUTE oSurround Mutino (H=Acfive)
,,.
62 IA.MUTE IoI-20dB Muting iH=Activej
63 IF.MUTE OIFront L. RMutina (H=Active) I
64 ]P14 oNot used
65 IP15 oNot used
66 1P16 oNot used
,
67 P17 oNot used
68 PGO oNot used
69 PG1 0 Not used
70 PG2 oNot used
71 IPG3 IoINot used I
I.---- 1I..-. ----
72 IVDD iIPower Sucmlv I
i73i NC I[Non connection I
\a-.
74 PG4 oNot used
75 PG5 oNot used
76 PG6 oNot used
77 PG7 oNot used 4
76 PFO oNot used
79 PF1 oNot used
60 PF2 oNot used
f
:: ..:
...’
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tl +5. 6V
Ic430 CXP84412 ill~ ~F.MJlE+t161 F. MJTE
L.!. -.
R!=sF w1’1 III
m
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“b This Isa basic schematic diagram.
.,,,
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-u
:
g
-.
.FROM MAIN PWB
b
:(CN403)
.
This manual suits for next models
1
Table of contents
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