Philips FWD796 User manual

CLASS 1
LASER PRODUCT
Service
Service
Service
Service
Service
FWD796/21/21M
©Copyright 2005 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise
without the prior permission of Philips.
Published by SL-ET0519 Service Audio Printed in The Netherlands Subject to modification.
GB
3141 785 30360
Mini System
VIDEO CD
Version 1.0
Service Manual
TABLE OF CONTENTS
Page
Location of PCBs & Specifications .................. 1-2 to 1-3
Measurement Setup & Service Aids................ 1-4 to 1-5
ESD & Safety Instruction ............................................1-6
Lead-Free Information & Service Instruction .............1-7
Preparations & Controls & Troubleshooting .. 1-8 to 1-14
Setting Procedure & Repair Instructions ....................... 2
Disassembly Instructions & Service positions .............. 3
Set Block & Wiring Diagram .......................................... 4
Key/Video/Sensor/Phone/Vol /Vu Board ....................... 5
Tuner Board ................................................................... 6
Main Board .................................................................... 7
Power Board .................................................................. 8
Mechanical Exploded View & Parts List ..........................9
Subwoofer Part ............................................................ 10
Location of PCBs & Specifications .......................... 10-1
Measurement Setup & Service Position ..... 10-2 to 10-3
Disassembly Instructions & Service Positions ........ 10-4
Set Block & Wiring Diagram ........................ 10-5 to 10-6
Main Board ................................................ 10-7 to 10-11
Power & LED Board ................................ 10-12 to 10-15
Exploded View & Parts List ..................... 10-16 to 10-17

4-1
SET BLOCK DIAGRAM
4-1

5-3 5-3
CIRCUIT DIAGRAM - KEY BOARD
1
A
B
C
D
E E
A
B
C
D
23456
123456
C1805 D1
C2001 A3
C2002 A3
C2003 B3
C2004 B3
C2005 B3
C2006 B6
C2007 B5
C2008 A4
C2009 A4
C2010 A4
C2012 B4
C2013 B4
C2014 B4
C2015 C1
C2016 C1
C2017 D2
C2018 D2
C2019 A3
C2020 A3
C2021 A1
C2024 A3
C2025 A2
C2026 B1
C2027 C2
C2028 C2
C2031 B1
C2032 C5
C2033 C5
C2035 D6
C2225 A2
C2226 A2
C2227 A2
C2228 B2
CN202 D5
CN252 D6
CN253 C2
CN254 C4
CN257 D5
D251 B3
D252 B5
D253 B5
D254 B5
D255 B5
D256 B5
D257 B6
D258 B6
D259 B6
D260 A3
D265 C4
D266 D5
D267 D6
D268 C6
DP201 A6
ESDC2 D5
ESDC5 D6
IC251 A4
IC252 A2
IC253 B3
IC254 D2
JK101 D6
JK551 D1
JW2001 C1
JW2002 C2
LD251 B3
LD256 D3
LD264 C6
LD265 C6
LD266 C6
M2 E2
M3 E1
Q251 A1
Q252 A1
Q255 A1
Q256 A1
Q257 A1
Q259 A3
Q261 C5
Q262 C5
Q263 C6
Q264 C6
Q265 C6
Q266 C6
R230 C6
R284 C5
R285 C5
R286 C5
R287 C5
R288 C5
R289 C5
R291 C6
R292 C6
R293 C6
R294 C6
R295 C6
R296 C6
R297 C6
R298 C6
R299 D6
R2001 A1
R2002 A1
R2003 A1
R2004 A1
R2005 A1
R2006 A1
R2010 A2
R2011 A1
R2012 A2
R2013 A1
R2014 A2
R2016 B3
R2017 B3
R2018 B3
R2019 B3
R2020 B3
R2021 A4
R2023 A4
R2024 B4
R2025 B4
R2026 B4
R2027 B4
R2028 B2
R2029 B1
R2030 B1
R2031 A1
R2032 A1
R2033 A1
R2034 A3
R2035 A3
R2036 A3
R2039 B2
R2040 C1
R2041 C1
R2046 D3
R2056 C2
R2057 C2
R2062 B2
R2063 B2
R2064 B2
R2066 A2
R2067 A2
R2068 A2
R2071 A3
R2075 B1
R2078 B1
R2079 B3
R2080 B1
R2081 B1
R2082 B1
R2084 A3
R2085 A3
R2086 B4
R2087 B2
R2088 B2
R2098 B1
RB1101 D6
RB202 C1
RB251 B1
RB252 D1
RB253 C2
RB254 C4
RB257 D5
RB551 D1
RB803 E1
RB804 E2
RB805 D6
RB909 B1
SN251 C1
SW803 E1
SW804 E1
TA251 A3
TA253 A3
TA255 C3
TA258 D3
TA259 D3
TA260 D3
TA261 D3
TA262 D3
TA263 C3
TA265 D3
TA265A D3
TA266 C3
TA266A D3
TA267 D3
TA268 D3
TA269 D3
TA270 D3
TA271 C4
TA272 D4
TA273 D4
TA274 D4
TA276 D4
TA277 D4
TA278 D4
TA279 D4
TA280 D5
TA281 D5
TA282 D5
TA283 D5
TA284 D5
VM251 C5
VR201-A D1
VR201-B D1
XL251 A2
ZD201 B2
ZD251 C1
ZD252 C1

6-2 6-2
TUNER ADJUSTMENT TABLE
A
1
2
3
1
2
3
BCD
ABCD
ANT001 A1
C1 D3
C01 D3
C03 C2
C05 C1
C002 A1
C004 A1
C005 B1
C006 B1
C007 B2
C008 B2
C009 A2
C010 D1
C011 A3
C012 B2
C013 D1
C014 C1
C015 A3
C016 A3
C017 B3
C018 B3
C019 B2
C020 B3
C021 B3
C022 D3
C023 D3
C024 C1
C025 B3
C026 B3
C027 D2
C028 D2
C029 C3
C030 C1
C031 B3
C032 B3
C033 D2
C034 C2
C035 A3
C036 D3
C037 C3
C038 C2
C039 D3
C040 C2
C041 C2
C042 C2
C043 D2
C044 C2
C045 C2
C046 C2
C047 D1
C048 D1
C049 A2
C050 B3
C071 B3
CN001 D2
CN002 A2
D001 A1
D002 A1
D004 C2
D005 A2
EF450-G1 A1
IC001 B2
IC002 D1
IF001 B1
IF002 C1
IF003 C3
Q001 B1
Q002 D2
Q003 C2
Q004 B3
R01 C1
R001 B1
R002 A1
R003 B1
R004 B1
R005 B1
R006 B2
R007 A1
R008 B1
R009 A1
R010 A3
R011 A3
R012 B3
R013 B3
R014 B3
R015 B2
R016 D2
R017 B3
R018 C2
R019 C2
R020 D3
R021 D3
R023 D2
R024 D1
R025 B3
R026 B3
R027 C2
R028 D2
R029 D2
R030 D2
R033 C2
R034 D1
R035 C1
R036 A1
R037 A1
R038 D1
R039 D1
R040 A1
R046 B1
T001 B1
T002 C1
T003 C1
T004 A3
T005 A2
T006 B2
VC001 A2
VD001 A2
VD002 A3
VR01 B2
XL1 C2
XL2 C1

BLOCK DIAGRAM - MAIN BOARD
ES6698
8/16-MB
DRAM
RF Amp
VFD Driver
Audio DAC
T
V Display
Speakers
Video
EEPROM A/V Receiver
Vibratto-II
VFD Panel
Audio ADC Microphone In
S/PDIF
ROM/Flash
Motor Driver
OPU
Motor
DVD/CD
IR Remote
ES6603S
7-2 7-2

7-3
CIRCUIT DIAGRAM - MAIN BOARD
SERVO PART
1234567
123 4 5 67
A
B
C
D
E
A
B
C
D
E
C1 D6
C12 A7
C26 C1
C27 C1
C28 C1
C29 C1
C30 C1
C31 C1
C32 C1
C33 C1
C34 C1
C35 C1
C36 C1
C37 C1
C201 A6
C202 A6
C203 A7
C204 A6
C205 A7
C206 A6
C207 A7
C208 A6
C209 B7
C210 B6
C211 B7
C212 B7
C213 B7
C214 B7
C215 B7
C216 B7
C217 B7
C218 B6
C219 B6
C220 B6
C221 B5
C222 B5
C223 B5
C224 B5
C225 B5
C226 B5
C227 B5
C228 B5
C229 B5
C230 B5
C231 C4
C232 B4
C233 B4
C234 B4
C237 C4
C238 C4
C239 C4
C240 C4
C241 C4
C242 C4
C243 C4
C244 C4
C245 C4
C246 C4
C247 C4
C248 C4
C249 C4
C250 C4
C251 D4
C252 D4
C253 E4
C254 C7
C255 C7
C256 D7
C257 D7
C258 E4
C259 D3
C260 D3
C261 E3
C262 E5
C263 E5
C264 E5
C265 E5
C266 E5
C267 E5
C268 E6
C269 E6
C270 E6
C271 D1
C272 D1
C273 D1
C274 D2
C275 D1
C276 D1
C277 D1
C278 D1
C279 D2
C280 D2
C281 E1
C282 E1
C283 E1
C284 E1
C285 E2
C286 E2
C287 B7
C288 E3
C289 E4
C290 B7
C291 B7
C292 C4
C293 B7


C2273 D2
C2266 A5
C2274 D2
C2275 D2
C2276 D2
C2277 C6
C2278 D2
C2279 D2
C2280 B4
C2281 B4
N202 A7
CN801 A1
CN810 B1
D801 A2
D802 A2
D803 B3
FB201 B6
FB202 C6
FB204 E6
FB206 D1
FB207 D1
FB208 D1
FB209 E1
FB210 B6
FB211 B6
FB212 D4
FB213 A7
FB214 A7
FB215 A7
FB216 A7
FB217 A7
FB218 D5
FB219 B6
FB220 B6
FB221 D6
FB222 E5
FB223 E5
FB224 E5
FB225 E5
FB226 E5
FB227 E5
FB228 E4
FB229 E4
FB230 D2
FB801 A1
FB802 A1
FB803 D1
FB804 D1
FB805 B2
FB2101D1
IC201 C5
IC202 B7
IC203 D7
IC205 E6
IC207 E6
IC209 D4
IC210 D4
IC211 D3
IC212 D3
IC213 D3
IC216 D1
IC217 D1
IC218 E1
IC220 E3
IC221 E3
IC222 E3
IC801 A4
IC802 B2
IC803 C2
IC804 D1
IC805-AB3
IC805-BB5
JK1 D7
L6 B6
L201 A6
L202 A6
L203 A6
L204 A6
L205 A6
L206 E4
L207 A7
Q201 E2
Q805 A2
Q806 A2
R8 D6
R9 D3
R10 D3
R17 D3
R202 D3
R208 A6
R209 A6
R210 A6
R211 A6
R212 B6
R213 A6
R214 B6
R215 B6
R216 B6
R217 B6
R221 B6
R222 B6
R223 C6
R229 E7
R231 B5
R232 B5

C294 D3
C295 B7
C296 B4
C297 B4
C801 A1
C802 A1
C803 A2
C804 A2
C805 A2
C806 B2
C807 A2
C808 A3
C809 A3
C810 A3
C811 A3
C812 A4
C813 A4
C814 A4
C815 A4
C817 A3
C818 A3
C819 A3
C820 A3
C821 A3
C822 A4
C823 A4
C824 A4
C825 B4
C826 B4
C827 B4
C828 B4
C829 B2
C830 B2
C831 B2
C832 B3
C833 B3
C834 B2
C835 B3
C836 C2
C837 D2
C838 C1
C839 D1
C840 D1
C841 D1
C853 D1
C854 D1
C857 D1
C855 B5
C856 B5
C2001 B6
C2002 B6
C2201 D4
C2202 D4
C2203 D4
C2204 D4
C2205 D4
C2206 D4
C2207 D4
C2208 D4
C2209 D4
C2210 D4
C2211 D4
C2212 E4
C2213 E4
C2214 E4
C2215 E4
C2216 E4
C2217 E7
C2218 E7
C2219 E7
C2220 E7
C2221 E7
C2222 E7
C2223 E7
C2233 D4
C2234 C3
C2235 C3
C2236 C3
C2237 C3
C2238 D5
C2239 E6
C2242 A5
C2243 A5
C2248 A5
C2249 A5
C2250 A5
C2251 A5
C2252 A5
C2253 A5
C2254 A5
C2255 A5
C2256 A5
C2258 A5
C2259 A5
C2260 A5
C2261 A5
C2262 A5
C2263 A5
C2264 A5
C2267 A5
C2268 C2
C2269 C2
C2270 C2
C2271 C2
C2272 D2



R235 B5
R236 B5
R237 B5
R238 C4
R240 C4
R241 C4
R242 C4
R243 C4
R244 C4
R245 C4
R248 D4
R249 D4
R250 D4
R252 D4
R253 D4
R254 D4
R255 D4
R256 D4
R257 D5
R260 E6
R261 E6
R262 E5
R263 E5
R264 E5
R265 E5
R266 E5
R267 E5
R268 E5
R269 E5
R270 E5
R271 B6
R273 E1
R274 B7
R275 E3
R277 E2
R279 E2
R278 E1
R280 B2
R281 B2
R283 B6
R284 C7
R286 D3
R287 D3
R288 E4
R289 E4
R290 E4
R291 E5
R292 E5
R293 E5
R294 C4
R295 C4
R296 C4
R297 C4
R298 C4
R299 C4
R801 A1
R802 A1
R806 A2
R807 A3
R809 B3
R810 B3
R813 A4
R814 B4
R816 B2
R817 B2
R818 B2
R819 B2
R820 B2
R821 B2
R822 B2
R823 B2
R824 B2
R825 B2
R826 B2
R828 B3
R829 B2
R830 B2
R831 B3
R832 B3
R833 B3
R834 B3
R835 B3
R836 C3
R837 B3
R838 C3
R840 C3
R841 C3
R842 C2
R843 C2
R844 C2
R845 C3
R846 C3
R847 C1
R850 D2
R851 D2
R858 B4
R859 B5
R860 B5
R861 A5
R2178 E1
R2201 C3
R2202 C3
R2203 C3
R2204 C3
R233 B5
R234 B5



R2205 D2
R2206 D3
R2208 D3
R2209 E3
R2210 E2
R2211 D3
R2212 C4
R2213 E7
R2214 E7
R2215 E7
R2216 D4
R2217 D4
R2218 D4
R2219 D4
R2220 B6
R2222 B4
RA201 B6
RA202 D4
RA204 D5
RA205 D5
RA206 D5
RA208 E6
RA209 E7
XL201 D5
ZD201 A7
ZD202 A7
ZD203 A7
ZD204 A7
ZD205 A7
ZD206 A7
ZD207 A7
ZD208 A7
ZD209 B7
ZD210 B7

7-3

CIRCUIT DIAGRAM - MAIN BOARD
12 345 6
12 345 6
A
B
C
D
A
B
C
D
7-4 7-4

CIRCUIT DIAGRAM - TAPE PART
7-6 7-6
1
A
B
C
A
B
C
23456
123456
C701 A1
C702 A1
C703 A1
C704 A1
C705 A1
C706 A1
C707 A2
C708 A2
C709 B1
C710 B2
C711 A2
C713 A2
C714 A2
C715 A2
C716 A2
C717 A2
C718 A2
C719 A2
C720 A2
C721 A2
C722 A2
C723 A3
C724 A3
C725 A3
C726 A3
C727 A3
C728 A3
C729 A3
C730 A3
C731 A4
C732 A4
C733 A2
C734 B2
C735 A2
C736 B2
C737 A2
C738 B2
C739 A3
C740 B3
C741 A3
C742 B3
C743 B1
C744 B1
C745 B1
C746 B1
C747 B2
C748 B2
C749 B3
C750 A4
C751 B5
C752 B5
C753 B6
C754 B6
C755 B6
C756 B5
C757 B5
C758 B6
C759 B5
C760 B5
C761 A2
C762 A6
C1101 C2
C1102 C1
C1103 C1
C1106 C2
C1107 C2
C1108 C2
C1801 B3
C1803 C3
C1804 C3
C1805 C3
C1806 C3
C1807 C3
C1808 C3
CN701 A1
CN702 A1
CN703 A6
CN1101 C1
CN7001A B6
D701 B1
D702 B1
D703 B2
D704 B1
D705 B1
D706 B2
D707 A2
D708 B2
D709 A3
D710 A3
D711 A4
D712 A5
D713 B4
D714 A6
E-ZD05 C1
FB181 B2
FB183 C2
FB184 C2
FB185 C2
FB186 C2
FB187 C2
FB188 C3
IC1011 C2
IC701 A2
IC702 A3
IC703 A3
IC704 A4
IC705 A4
JK181 B3
JK182 C3
JK183-A-A C3
JK183-A-B C3
L701 A1
L702 B5
L703 A5
Q701 A1
Q702 B1
Q703 B1
Q704 B1
Q705 B1
Q706 B2
Q707 B3
Q708 A3
Q709 B3
Q710 A4
Q711 A4
Q712 A5
Q713 A5
Q714 A5
Q715 A5
Q716 A5
Q717 A5
Q1101 C2
R7 C2
R701 A1
R702 A1
R703 A1
R704 A1
R705 A1
R706 A1
R707 A1
R708 A1
R709 A1
R710 A2
R711 A2
R712 A2
R713 B1
R714 B2
R715 B2
R716 A2
R717 A2
R718 A2
R719 A2
R720 A2
R721 A2
R722 A2
R723 A2
R724 A2
R725 A2
R726 A3
R727 A3
R728 A3
R729 A3
R730 A3
R731 A3
R732 A3
R733 A3
R734 A3
R735 A3
R736 A3
R737 A3
R738 A3
R739 A3
R740 A3
R741 A3
R742 A2
R743 B2
R744 A3
R745 A3
R746 B3
R747 B3
R748 B3
R749 A3
R750 B3
R751 B3
R752 B3
R753 A4
R754 B4
R755 B4
R756 B4
R757 B4
R758 B1
R759 B1
R760 B1
R761 B1
R762 B1
R763 B1
R764 B1
R765 B1
R766 B1
R767 B1
R768 B1
R769 B2
R770 B2
R771 B2
R772 B2
R773 B2
R774 B3
R775 A4
R776 A4
R777 A4
R778 A4
R779 A5
R780 A5
R781 A5
R782 A5
R783 A5
R784 A5
R785 A5
R786 A5
R787 A5
R788 A5
R789 A5
R790 A5
R791 A5
R792 A5
R793 A5
R794 A5
R797 B5
R799 A6
R1081 C1
R1084 C2
R1087 C2
R1088 C2
R1089 C3
R1091 C1
R1092 C1
R1093 C2
R7001 A6
R7004 A6
R7005 A6
R7007 B6
R7008 B5
R7009 B5
R7010 B6
R7011 B6
R7012 B6
R7013 A3
RB202 B1
T701 B1
VR701 A5
VR702 A5
ZD181 B3
ZD183 C2
ZD184 C3
ZD185 C3
ZD186 C2
ZD187 C3
ZD188 C3
ZD701 B1
ZD1001 C2

CIRCUIT DIAGRAM - POWER BOARD
8-2
8-2
1234
A
B
C
D
A
B
C
D
56
12345
6
BD901 A1
BF901 A2
BF902 B2
BF903 B2
C851 A6
C852 A6
C902 C1
C903 C1
C906 A1
C907 B1
C908 A2
C909 A2
C911 C1
C912 D2
C913 C2
C914 D2
C915 D3
C916 D3
C917 D3
C918 D1
C919 D1
C920 C1
C921 A1
C922 B1
C923 D3
C926 A4
C927 A4
C928 B2
C951 A4
C952 A4
C953 A4
C954 A4
C955 B4
C956 B4
C957 B4
C958 A3
C959 B5
C960 B4
C961 C4
C962 C4
C963 B5
C964 C5
C965 C4
C969 C3
C970 C4
C972 C5
C973 C3
C974 C5
C975 C4
C977 D3
C978 D4
C979 D3
C980 D4
C981 B4
C982 A3
C983 A5
C984 A5
C985 A3
C986 A3
C987 A3
C988 A3
C989 A3
C990 C3
C991 D3
C992 C3
C993 C3
C994 B3
C995 A4
C996 C3
C997 C4
C998 C3
C999 C3
CN803AA6
CN804AA6
CN806AA6
CN807AA6
CN808AA6
CN810AA6
CN901 D1
CN902 B1
CN903 A1
CN951 A5
CN952 C5
D901 A2
D902 A2
D903 B2
D904 B2
D905 C2
D906 C2
D907 C2
D908 C2
D909 A2
D910 B2
D951 A4
D952 A5
D953 B5
D954 B3
D955 B3
D958 C3
D959 C3
D960 C3
D962 C3
F901 D1
GT901 C1
IC901 C2
IC902 D3
IC951 A3
IC952 A3
IC953-AB5
IC953-CB5
IC954B4
IC955D3
L901 C1
L951 A4
L952 A4
L954 B3
L955 C3
L956 C4
L957 D3
L958 C5
L959 D3
L966 C3
Q901 A2
Q902 B2
Q903 C2
Q904 C2
Q905 D2
Q951 B3
Q952 B3
Q953 C4
Q954 C3
Q955 C4
Q956 D4
Q957 C4
Q959 D4
Q960 D4
R1 B1
R2 A1
R3 B1
R902 A1
R903 B1
R904 A2
R905 A2
R906 A2
R907 B2
R908 B2
R910 C2
R911 C2
R912 C2
R913 C2
R914 C2
R915 C2
R916 D2
R917 D2
R918 C2
R919 C2
R920 D2
R921 C2
R922 B2
R923 B2
R951 A4
R952 A4
R953 B4
R954 A4
R955 B4
R956 B4
R957 A5
R958 A3
R959 B5
R960 A4
R961 A5
R962 B5
R964 B3
R965 B3
R966 B4
R967 C4
R968 C5
R969 C5
R971 B4
R972 B4
R973 C4
R974 C3
R975 D3
R976 C4
R977 D4
R978 D4
R979 D4
R980 D5
R981 D4
R982 D4
R983 D4
R984 D4
R985 D3
R986 D3
R987 D3
R988 D3
R989 C4
R990 D4
R991 D4
R992 C4
R993 A5
R994 A5
R995 C1
R996 B4
R997 B4
R999 D4
RT901 B1
SW801 A6
SW802 A6
TR901 A3
TR902 B3
TR903 C3
TVR901C1
ZD901 A2
ZD902 B2
ZD903 D2
ZD904 D1
ZD905 C2
ZD951 A4
ZD953 C4


SUBWOOFER MAIN BOARD
TABLE OF CONTENTS
INTERNAL IC DIAGRAM...................................................10-7
Circuit Diagram..................................................................10-8
PCB Layout Top View........................................................10-9
PCB Layout Buttom View.................................................10-10
Electrical Parts List .........................................................10-11
10-7 10-7
TDA8920TH INTERNAL IC DIAGRAM
11
VDDA2 VDDA1
310
STAB1 PROT
18 13
VDDP2 VDDP1
23 14
IN1-
IN1+
9
8INPUT
STAGE
PWM
MODULATOR
RELEASE
SWITCH1
ENABLE1
CONTROL
AND
HANDSHAKE
DRIVER
HIGH
DRIVER
LOW
15
16
BOOT1
OUT1
VSSP1
MUTE
SGND1
OSC
7
MODE 6MODE
OSDILLATOR
STAB1
MANAGER TEMPERATURE SENSOR
CURRENT PROTECTION
TDA8920TH
SGND2
IN2+
IN2-
5
4
MUTE
VSSA2 VSSA1
112
PWM
MODULATOR
VSSD HW
24 19
ENABLE2
SWITCH2
RELEASE2
CONTROL
AND
HANDSHAKE
DRIVER
HIGH
DRIVER
LOW
VDDP2
BOOT2
22
OUT2
21
VSSP1 VSSP2
17 20
±
+
Inputs
Q3 Q4 Q5 Q2 Q1
VCC
Q6
J1 J2
Q17
Q20
Q23
24
J3
2.0 k
Q14
Q15
10 pF
Q19
Q21 Q22 Q24
Q9 Q8
Q7
Q25
Q12
Q10
Q13
Q11
Q16
Q18
1.5 k
VEE
Bias Circuitry
Common to All
Amplifiers
Offset
Null
(TL071
only)
Output
1.5 k
TL074 INTERNAL IC DIAGRAM

CIRCUIT DIAGRAM - MAIN BOARD
1234567
A
B
C
D
8
8
7654321
D
C
B
A
VSSA2
1
SGND2
2
VDDA2 3
IN2-
4
IN2+
5
MODE 6
OSC 7
IN1+
8
IN1-
9
VDDA1 10
SGND1
11
ASSA1
12
PROT
13 VDDP1 14
BOOT1 15
OUT1 16
VSSP1
17
STABI
18
SBVD
19
VSSP2
20
OUT2 21
BOOT2 22
VDDP2 23
VSSD
24
IC501
TDA8920BTH
1
2
3
4
5
6
7
8
9
JK 401
L502
33u
L50127u
C570
560P
C524
153
C525
560P
C526
N824
C527
224
C528
153
R515
22 1/2W
R516
5.6 1/4W
R517
22 1/2W
R524
5.6 1/4W
R514
5.6 1/4W
R523
5.6 1/4W
VSSP
VDDP
C529
C530
C571 C531
N824
C533
153
C532
224
C539
104
C520
224
VSSPVDDP
R532
10R
R531
10R
VSSP
VDDP
VSSP
C537
224
C538
68P
C519
104
C504
1000P
C521
104
C536
104
C510
474
C509
330P
C523
104
C541
104 C534
104
C501
1000P
C517
104
C512
330P
C505
474
VDDP
VSSP
C414
100P
C401
100P
C919
104
C503
1000P
C502
1000P
C506
474
C511
474
C409
100P
C303
224
C928
104
C918
104
C927
104
VSSA2
1
SGND2
2
VDDA2 3
IN2-
4
IN2+
5
MODE 6
OSC 7
IN1+
8
IN1-
9
VDDA1 10
SGND1
11
ASSA1
12
PROT
13 VDDP1 14
BOOT1 15
OUT1 16
VSSP1
17
STABI
18
SBVD
19
VSSP2
20
OUT2 21
BOOT2 22
VDDP2 23
VSSD
24
IC502
TDA8920BTH
L504
33u
L503 27u
C572
560P
C549
153
C550
560P
C552
N824 C551
224
C553
153
R520
22 1/2W
R521
5.6 R522
22 1/2W
R526
5.6
R519
5.6 1/4W
R525
5.6 1/4W
VSSP
VDDP
C554
C558
C573
C559
N824 C561
153
C560
224
C567
104
C545
224
VSSPVDDP
R533 10R
R534
10R
VSSP
VDDP
VSSP
C565
224
C566
68P
C544
104
C546
104
C564
104
C514
474
C513
330P
C548
104 C569
104
C562
104
C542
104
C516
330P
C507
474
VDDP
VSSP
C508
474
C515
474
+
C420
10UF/50V
+
C419
10uF/50V
+
C417
10UF/50V
+
C930
33UF/25V
+
C577
47UF
/
16V
+
C302
22UF/50V
+
C931
330UF/25V
13
12
14
IC401D
TL074CN
9
10
8
IC401C
TL074CN
6
5
7
IC401B
TL074CN
2
3
1
IC401A
TL074CN
11 4
IC401E
TL074CN
C402
100P
C410
470P
C403
100P
C411
0.1uF
C404
100P
C412
470P
R913
10K
C413
100P
R914
10K
C416
100P
C415
103p
Q502
2SC945
Q501
2SC945
D502
1N4148
D501
1N4148
+
C57610UF/16V
+12V
FB403 600
FB401
600
FB404
600
FB402
600
1
2
3
4
CN901
CN4/396
FB905
100
FB901 100
FB902
100
FB904
100
FB906
100
FB903
100
VDDP
+
C922
470UF/35V
+
C923
470UF/35V
+
C915
3300UF/35V
+
C916
3300UF/35V
VSSP
+
C925
100UF/25V
+
C926
100UF/25V
R915100 2W
R916
1.0K 1/2W
ZD904
11.9-12.4V
ZD903
11.9-12.4V
+12V
1 2
CN904
CN2/20
1
2
RB904
CN2/20
LD901
LED
1
2
CN501
-12V
Q907
2SA733
Q906
2SC945
Q301
2SC945
D906
1N4148
D909
1N4148
D908
1N4148
ZD905
5.0-5.2VZ
ZD301
5.6-5.9V
VDDP
VDDP
+24V
GND
-24V
D301
0805 0R
1 2
CN301
CN2/20
Te
STB-BY
GND
FB405 600
R412
1K
R411
1K
R410
1K
R409
1K
R404
30K
R408
15K
R403
30K
R406
15K
R402
30K
R401
30K
R405
15K
R504
10K
R503
10K
R502
10K
R501
10K
R413
7.5K
R414
11K
R416
11K
R407 5.6K
R415
22K
R507
5.6K
R511
5.6K
R508
5.6K
R512
5.6K
R509
5.6K
R506
5.6K
R510
5.6K
R505
5.6K
R518
30K
R513 30K
R535
10K
R537 1.8K
R536
30K
R538
470
R304
39K
R303
560
R302
10K
R301
47K
R924
4.7K
R923
100K
R921
220K
R917
4.7K
R918 15K
R919
100K
R922
1K
+24V
-24V
L-IN
R-IN
C-IN
MUTE
SW-IN
JK501
SPK /3CH/6P
+
C418
10UF/50V
+
C406
10UF/50V
+
C407
10UF/50V
+
C408
10UF/50V
+
C405
10UF/50V
ZD906 8.5V
D901
1N4148
D903
1N4148
D904
1N4148
D902
1N4148
D907 1N4148
D9051N4148
+
C901
10UF/50V
+
C902
100u/50V
Q901
2SC945
Q902
2SA733
R903 1/2W
150
R904 1/2W
120
R902
2.2k
FB907
100
+12v
1
2
CN902
Fan
R901
4.7k
C578
104
C579
104
C580
104
C553
104
R920
10K
R418
10K open
R417
10K
open
R420
10K open
R419
10Kopen
R528
47K
R530 47K
R527
47K
R529
47K
C540
104
C547
104
C522
104
C568
104
+
C575
47UF/63V
+
C574 47UF/63V
VSSPVDDPVSSPVDDP
+
C920
470UF/35V
+
C921
470UF/35V
IC502IC501
Q908
882
R912
1.8K
R539 1K
R541
1K
R540 1K
R542
1K
+
C903
100UFzz16V
C904
104
C302D6
C303D7
C401C2
C403 B2
C404 A2
C405C2
C406 B2
C407 B2
C408 A2
C409C3
C410 B3
C411 B3
C412 A3
C413C3
C414C3
C415 B3
C416 B3
C501C4
C502 B4
C503 B4
C504 A4
C505C5
C506C5
C507 B5
C508 A5
C509C5
C510C5
C511C5
C512C5
C513 B5
C514 B5
C515 B5
C516 B5
C517C5
C519 B5
C520C6
C521C6
C522 A3
C523 B6
C524C7
C525C7
C526C7
C527C7
C528C8
C529C7
C530C7
C531C7
C532C7
C533C8
C534 B5
C536C5
C537 B6
C538 B6
C539C6
C540 A3
C541 B6
C542 B5
C544 A5
C545 B6
C546 B6
C547 A3
C548 A6
C549 B7
C550 B7
C551 B8
C552 B7
C553 B8
C554 B7
C558 B7
C559 B7
C560 B8
C561 B8
C562 A5
C564 B5
C565 A6
C566 A6
C567 B6
C568 A3
C569 A6
C570C7
C571C7
C572 B7
C573 B7
C574 A3
C575 A3
C576 A7
C577 A6
C578 C8
C579 C8
C580 B8
C901 D8
C902 D8
C903 D7
C904 C7
C915 D1
C916 D1
C918 D2
C919 D2
C920 D2
C921 D2
C922 D2
C923 D2
C925 D3
C926 D3
C927 D3
C928 D3
C930 D4
C931 D5
CN301C1
CN501B8
CN901D1
CN902D7
CN904D3
D301 C2
D501 A6
D502 A6
D901 C8
D902 C8
D903 C8
D904 C8
D905 C8
D906 D4
D907 C8
D908 D5
D909 D5
FB401A1
FB402B1
FB403C1
FB404B1
FB405C1
FB901D2
FB902C2
FB903D2
FB904D2
FB905D3
FB906C2
FB907D7
IC401AA3
IC401BB3
IC401CB3
IC401DC3
IC401ED4
IC501C5
IC502 A3
JK401B1
JK501B8
L501 C7
L502 C7
L503 B7
L504 B7
Q301 D6
Q501 A5
Q502 A4
Q901 D8
Q902 D8
Q906 D5
Q907 D5
Q908 D3
R301 D6
R302 D6
R303 D6
R304 D7
R401 C2
R402 B2
R403 B2
R404 A2
R405 C2
R406 B2
R407 B2
R408 A2
R409C2

R410C2

R411 B2

R412 A2

R413C3

R414C3

R415 B3

R416 A3

R912D2

R501C4

R502 B4

R503 B4

R504 A4

R505C4

R506C4

R507 B4

R508 A4

R509C4

R510C4

R511 B4

R512 B4

R513C6

R514C7

R515C7

R516C7

R517C7

R518 B6

R519 B7

R520 B8

R521 A7

R522 A8

R523C7

R524C7

R525 B7

R526 A7

R527C4

R528C4

R529 B4

R530 B4

R531C6

R532D6

R533 B6

R534 B6

R535 A6

R536 A5

R537 A5

R538 A5

R539 B8

R540 B8

R541C8

R542C8

R901D8

R902D8

R903D7

R904D7

R913D1

R914D1

R915D2

R916C2

R917D4

R918D4

R919D4

R920D5

R921D4

R922D3

R923D5

R924D5

ZD301D6

ZD903D3

ZD904D3

ZD905D4

ZD906D4

10-8 10-8

POWER + LED BOARDS
TABLE OF CONTENTS
Internal IC Diagram ..................................................... 10-12
Circuit Diagram ............................................................ 10-13
PCB Layout View ......................................................... 10-14
Electrical Parts list ....................................................... 10-15
10-12 10-12
IC-KA7500C INTERNAL IC DIAGRAM
IC-BA4558D INTERNAL IC DIAGRAM
OUTPUT
V-
+INPUT
-INPUT
V+

CIRCUIT DIRGRAM - POWER BOARD
10-13
1 2
A
B
C
D
4
3
4
3
21
D
C
B
A
1 2
CN901
AC-IN
C901
102P-400V
C902
102P-400V
TVR901
TVR
12 43
L901
L-40mH
NTC901
RT-5A
C909
103P-1KV
C910
103P-1KV
R903
R04-470K
R904
R04-470K
ZD901 ZD-15V
C913
102P-1KV
ZD902
ZD-15V
C911 C155P-250V
D957
1N4148
D958
1N4148
R973
R06-560
R974
R06-560
R971 R06-56
R972 R06-56
C951
470P-1KV
C954
470P-1KV
C953
102P-1KV
R993
R10-120
C955
470P-1KV
C956
470P-1KV
C958 470P-1KV
C959
470P-1KV
1 2
4 3
L952
L-45UH-8A
C961
1000U35V
C962
1000U35V
R954
R02-2K2
1
2
3
RB951
CN3P-396
R952
R06-6K8
C971
10U 50V
R957
R06-10KM
R959
R06-10KM
R958
R06-100 R960
R06-33K
R961
R06-18KM
+
3
-
2
1
IC951A
IC-BA4558D
C975
100U16V
C974
CC104P
R966
R06-4K7
R967
R06-3K9
C976
CC104P
C977
M103P-100V
C978
CC104P
L957
L-10UH
C991
47U 16V
D9551N4148
R962
R06-1K2
ZD952
ZD-3V9
R963
R06-330
R964
R06-4K7
D956
1N4148
R965
R06-3K3
R901R04-470K
R902 R04-220 GT901
GT10
F901
R905
R04-22
R906
R04-22
R907
R04-3K3
R908R04-3K3
EA(+) 1
EA(-)
2
COM/IN
3
T/C
4
C-T
5
R-T
6
GND
7
C1
8E1 9
E2 10
C2 11
VCC 12
OUT/C 13
VERF 14
EA(-) 15
EA(+)
16
IC952
IC-KA7500C
84
+
-
IC951C
IC-BA4558D
+27V
GND
-27V
CN903 OPEN IS 230V
CN903 SHORT IS 110V
R10 IS 1W
R20 IS 2W
ECO POWER <1W
4
12
3
BD901
BD-GBU406G
DS
G
Q901
P9N K 60Z
DS
G
Q902
P9N K 60Z
D954
1N4148
D961
1N4148
1
3
6
4
5
L951
T-TR19-C
P1SCREW-A
P2SCREW-A
P3SCREW-A
P4SCREW-A
+
5
-
6
7
IC951B
IC-BA4558D
C973
47U 50V
D903
1N4148
D904
1N4148
C914
102P-1KV
R969
R06-10KM
C967
C104P-100V
C968
C104P-100V
C907
330U200V
C908
330U200V
C903
C474P-275V
C904
C474P-275V
T3.15A L 250V
D905
UF4005
D906UF4005
3
2
5
6
10
12
14
15
T901
T-TR350W-B
4
5
3
1
6
10
2
8
T902
T-TR16-A
R909
R30-120
R918
R30-120
R917
R30-120
C905 OPE N
102P-400V
C906 OPEN
102P-400V
R953 R20-680
R979
R06-10
R968
R06-1K
D953
HER104
R910
R30-120
C928
102P-1KV
C970
47U 25V
C952
101P-1KV
C957
101P-1KV
R951
R06-30K ZD953
ZD-24V
R955
R06-1K
R988
R06-1K
EC
B
Q957
2SC945
R956 R06-4K7
R992
R06-4K7
E C
B
Q958
2SC945
R995
R06-22K R994
R06-47K
R30 IS 3W
R04 IS 1/4W
R06 IS 1/6W
R04-1-F IS 1/4W 1 OHMRES FUSE
R06-10KM IS 1/6W 10KOHM 1%
Q912
2SC945
Q911
2SA952
1
2
RB911
D902
1N4001
D901
1N4001
R915
390
R912
560
R911
47K
R916
10K
R913
10K
R900
1K
+27
ZD911 open
12V
+
C986
10UF/50V
Q952
2SA952
Q951
2SA952
D972
UF3003
D971
UF3003
D975UF3003
D973
UF3003
+27
1 2
CN903
CN2/396
C922 222P-400V
C(A-B)
222P-400V
BA
BD901 D1
C901 B1
C902 B1
C903 B1
C904 C1
C907 D1
C908 C1
C909 D1
C910 C1
C911 D2
C913 D2
C914 D2
C922 B2
C928 C2
C951 D2
C952 C2
C953 D3
C954 C2
C955 D3
C958 D3
C961 D3
C962 D3
C967 D4
C968 D4
C970 B4
C971 C3
C973 C4
C974 C3
C975 C3
C976 B4
C977 B4
C978 B4
C991 B4
CN901 A1
CN903 B1
D901 A2
D902 A3
D903 D2
D904 C2
D905 D2
D906 C2
D953 D3
D954 C3
D955 C4
D956 C4
D957 C3
D958 B3
D961 C3
D971 D3
D972 D3
D973 D3
D975 D3
F901 B1
GT901 B1
IC951A C4
IC951B B4
IC951C B4
IC952 C4
L901 B1
L951 C3
L952 D3
L957 B4
NTC901C1
Q901 D2
Q902 C2
Q911 B3
Q912 B3
Q951 B3
Q952 C3
Q957 D4
Q958 D3
R900 B3
R901 B1
R902 B1
R903 D1
R904 C1
R905 D2
R906 C2
R907 D2
R908 C2
R909 D2
R910 C2
R911 B3
R912 A3
R913 A2
R915 A3
R916 B2
R917 D2
R918 D2
R951 D4
R952 D3
R953 D4
R954 D4
R955 D4
R956 D4
R957 C3
R958 C3
R959 C4
R960 C4
R961 C4
R962 C4
R963 C4
R964 C4
R965 C4
R966 C3
R967 B3
R968 B4
R969 B4
R971 C3
R972 C3
R973 C3
R974 B3
R979 B4
R988 D4
R992 D4
R993 D3
R994 D4
R995 D3
RB911 A2
RB951 D4
T901 D2
T902 C2
TVR901B1
ZD901 C2
ZD902 C2
ZD952 D4
ZD953 D4
10-13