Sony CDX-GT25 Service Manual ▷ View online
CDX-GT25
5
SECTION 2
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
CONNECTIONS
%QPPGEVKQPFKCITCO
ɞ 6QCOGVCNUWTHCEGQHVJGECT
(KTUVEQPPGEVVJGDNCEMITQWPF
GCTVJNGCFVJGPEQPPGEVVJG
[GNNQYCPFTGFRQYGTUWRRN[NGCFU
[GNNQYCPFTGFRQYGTUWRRN[NGCFU
ɟ 6QVJGRQYGTCPVGPPC
CGTKCNEQPVTQNNGCFQT
RQYGTUWRRN[NGCFQHCPVGPPC
CGTKCNDQQUVGT
0QVGU
̒ +VKUPQVPGEGUUCT[VQEQPPGEVVJKUNGCFKHVJGTGKUPQRQYGT
̒ +VKUPQVPGEGUUCT[VQEQPPGEVVJKUNGCFKHVJGTGKUPQRQYGT
CPVGPPC
CGTKCNQTCPVGPPC
CGTKCNDQQUVGTQTYKVJC
OCPWCNN[QRGTCVGFVGNGUEQRKECPVGPPC CGTKCN
OCPWCNN[QRGTCVGFVGNGUEQRKECPVGPPC CGTKCN
̒ 9JGP[QWTECTJCUCDWKNVKP(//959CPVGPPC
CGTKCN
KPVJGTGCTUKFGINCUUUGǦ0QVGUQPVJGEQPVTQNCPFRQYGT
UWRRN[NGCFU̍
UWRRN[NGCFU̍
ɠ 6Q#/24'/16'+0QHCPQRVKQPCNRQYGT
CORNK㧋GT
6JKUEQPPGEVKQPKUQPN[HQTCORNK㧋GTU%QPPGEVKPICP[QVJGT
U[UVGOOC[FCOCIGVJGWPKV
U[UVGOOC[FCOCIGVJGWPKV
ɡ 6QVJG
8RQYGTVGTOKPCNYJKEJKU
GPGTIK\GFKPVJGCEEGUUQT[RQUKVKQPQHVJG
KIPKVKQPMG[UYKVEJ
KIPKVKQPMG[UYKVEJ
0QVGU
̒ +HVJGTGKUPQCEEGUUQT[RQUKVKQPEQPPGEVVQVJG 8
̒ +HVJGTGKUPQCEEGUUQT[RQUKVKQPEQPPGEVVQVJG 8
RQYGT
DCVVGT[VGTOKPCNYJKEJKUGPGTIK\GFCVCNNVKOGU
$GUWTGVQEQPPGEVVJGDNCEMITQWPF
GCTVJNGCFVQC
OGVCNUWTHCEGQHVJGECT㧋TUV
̒ 9JGP[QWTECTJCUCDWKNVKP(//959CPVGPPC
CGTKCN
KPVJGTGCTUKFGINCUUUGǦ0QVGUQPVJGEQPVTQNCPFRQYGT
UWRRN[NGCFU̍
UWRRN[NGCFU̍
ɢ 6QVJG
8RQYGTVGTOKPCNYJKEJKU
GPGTIK\GFCVCNNVKOGU
$GUWTGVQEQPPGEVVJGDNCEMITQWPF
GCTVJNGCFVQCOGVCN
UWTHCEGQHVJGECT㧋TUV
0QVGUQPVJGEQPVTQNCPFRQYGTUWRRN[NGCFU
̒ 6JGRQYGTCPVGPPC CGTKCNEQPVTQNNGCF DNWGUWRRNKGU 8
UWTHCEGQHVJGECT㧋TUV
0QVGUQPVJGEQPVTQNCPFRQYGTUWRRN[NGCFU
̒ 6JGRQYGTCPVGPPC CGTKCNEQPVTQNNGCF DNWGUWRRNKGU 8
&%YJGP[QWVWTPQPVJGVWPGT
̒ 9JGP[QWTECTJCUDWKNVKP(//959CPVGPPC
CGTKCNKPVJG
TGCTUKFGINCUUEQPPGEVVJGRQYGTCPVGPPC
CGTKCNEQPVTQN
NGCF DNWGQTVJGCEEGUUQT[RQYGTUWRRN[NGCF TGFVQVJG
RQYGTVGTOKPCNQHVJGGZKUVKPICPVGPPC CGTKCNDQQUVGT(QT
FGVCKNUEQPUWNV[QWTFGCNGT
NGCF DNWGQTVJGCEEGUUQT[RQYGTUWRRN[NGCF TGFVQVJG
RQYGTVGTOKPCNQHVJGGZKUVKPICPVGPPC CGTKCNDQQUVGT(QT
FGVCKNUEQPUWNV[QWTFGCNGT
̒ #RQYGTCPVGPPC
CGTKCNYKVJQWVCTGNC[DQZECPPQVDGWUGF
YKVJVJKUWPKV
/GOQT[JQNFEQPPGEVKQP
9JGPVJG[GNNQYRQYGTKPRWVNGCFKUEQPPGEVGFRQYGTYKNN
CNYC[UDGUWRRNKGFVQVJGOGOQT[EKTEWKVGXGPYJGPVJGKIPKVKQP
UYKVEJKUVWTPGFQHH
9JGPVJG[GNNQYRQYGTKPRWVNGCFKUEQPPGEVGFRQYGTYKNN
CNYC[UDGUWRRNKGFVQVJGOGOQT[EKTEWKVGXGPYJGPVJGKIPKVKQP
UYKVEJKUVWTPGFQHH
0QVGUQPURGCMGTEQPPGEVKQP
̒ $GHQTGEQPPGEVKPIVJGURGCMGTUVWTPVJGWPKVQHH
̒ 7UGURGCMGTUYKVJCPKORGFCPEGQHVQQJOUCPFYKVJ
̒ $GHQTGEQPPGEVKPIVJGURGCMGTUVWTPVJGWPKVQHH
̒ 7UGURGCMGTUYKVJCPKORGFCPEGQHVQQJOUCPFYKVJ
CFGSWCVGRQYGTJCPFNKPIECRCEKVKGUVQCXQKFKVUFCOCIG
̒ &QPQVEQPPGEVVJGURGCMGTVGTOKPCNUVQVJGECTEJCUUKUQT
EQPPGEVVJGVGTOKPCNUQHVJGTKIJVURGCMGTUYKVJVJQUGQHVJG
NGHVURGCMGT
NGHVURGCMGT
̒ &QPQVEQPPGEVVJGITQWPF
GCTVJNGCFQHVJKUWPKVVQVJG
PGICVKXG
̄VGTOKPCNQHVJGURGCMGT
̒ &QPQVCVVGORVVQEQPPGEVVJGURGCMGTUKPRCTCNNGN
̒ %QPPGEVQPN[RCUUKXGURGCMGTU%QPPGEVKPICEVKXGURGCMGTU
̒ %QPPGEVQPN[RCUUKXGURGCMGTU%QPPGEVKPICEVKXGURGCMGTU
YKVJDWKNVKPCORNK㧋GTUVQVJGURGCMGTVGTOKPCNUOC[FCOCIG
VJGWPKV
VJGWPKV
̒ 6QCXQKFCOCNHWPEVKQPFQPQVWUGVJGDWKNVKPURGCMGTNGCFU
KPUVCNNGFKP[QWTECTKHVJGWPKVUJCTGUCEQOOQPPGICVKXG
̄
NGCFHQTVJGTKIJVCPFNGHVURGCMGTU
NGCFHQTVJGTKIJVCPFNGHVURGCMGTU
̒ &QPQVEQPPGEVVJGWPKV̉UURGCMGTNGCFUVQGCEJQVJGT
0QVGQPEQPPGEVKQP
+HURGCMGTCPFCORNK㧋GTCTGPQVEQPPGEVGFEQTTGEVN[̌(#+.74'̍
CRRGCTUKPVJGFKURNC[+PVJKUECUGOCMGUWTGVJGURGCMGTCPF
CORNK㧋GTCTGEQPPGEVGFEQTTGEVN[
+HURGCMGTCPFCORNK㧋GTCTGPQVEQPPGEVGFEQTTGEVN[̌(#+.74'̍
CRRGCTUKPVJGFKURNC[+PVJKUECUGOCMGUWTGVJGURGCMGTCPF
CORNK㧋GTCTGEQPPGEVGFEQTTGEVN[
&KCITCOCFGEQPGZK´P
ɞ#WPCUWRGT㧋EKGOGV¢NKECFGNCWVQO´XKN
%QPGEVGRTKOGTQGNECDNGFGEQPGZK´PCOCUCPGITQ[
FGURWªUNQUECDNGUCOCTKNNQ[TQLQFGHWGPVGFGCNKOGPVCEK´P
FGURWªUNQUECDNGUCOCTKNNQ[TQLQFGHWGPVGFGCNKOGPVCEK´P
ɟ#NECDNGFGEQPVTQNFGNCCPVGPCOQVQTK\CFC
QCNECDNGFGHWGPVGFGCNKOGPVCEK´PFGN
CORNK㧋ECFQTFGUG²CNFGNCCPVGPC
CORNK㧋ECFQTFGUG²CNFGNCCPVGPC
0QVCU
̒ 5KPQUGFKURQPGFGCPVGPCOQVQTK\CFCPKFGCORNK㧋ECFQT
̒ 5KPQUGFKURQPGFGCPVGPCOQVQTK\CFCPKFGCORNK㧋ECFQT
FGCPVGPCQUGWVKNK\CWPCCPVGPCVGNGUE´RKECCEEKQPCFC
OCPWCNOGPVGPQUGT¢PGEGUCTKQEQPGEVCTGUVGECDNG
OCPWCNOGPVGPQUGT¢PGEGUCTKQEQPGEVCTGUVGECDNG
̒ 5KGNCWVQO´XKNKPEQTRQTCWPCCPVGPCFG(//959GPGN
ETKUVCNVTCUGTQQNCVGTCNEQPUWNVǦ0QVCUUQDTGNQUECDNGU
FGEQPVTQN[FGHWGPVGFGCNKOGPVCEK´P̍
FGEQPVTQN[FGHWGPVGFGCNKOGPVCEK´P̍
ɠ##/24'/16'+0FGWPCORNK㧋ECFQTFG
RQVGPEKCQREKQPCN
'UVCEQPGZK´PGUU´NQRCTCCORNK㧋ECFQTGU.CEQPGZK´PFG
EWCNSWKGTQVTQUKUVGOCRWGFGFC²CTNCWPKFCF
EWCNSWKGTQVTQUKUVGOCRWGFGFC²CTNCWPKFCF
ɡ #NVGTOKPCNFGCNKOGPVCEK´PFG
8SWG
TGEKDGGPGTI®CGPNCRQUKEK´PFGCEEGUQTKQ
FGNKPVGTTWRVQTFGGPEGPFKFQ
FGNKPVGTTWRVQTFGGPEGPFKFQ
0QVCU
̒ 5KPQJC[RQUKEK´PFGCEEGUQTKQEQPªEVGNQCNVGTOKPCNFG
̒ 5KPQJC[RQUKEK´PFGCEEGUQTKQEQPªEVGNQCNVGTOKPCNFG
CNKOGPVCEK´P
DCVGT®CFG
8SWGTGEKDGGPGTI®CUKP
KPVGTTWREK´P
KPVGTTWREK´P
#UGI»TGUGFGEQPGEVCTRTKOGTQGNECDNGFGEQPGZK´PC
OCUCPGITQCWPCUWRGT㧋EKGOGV¢NKECFGNCWVQO´XKN
̒ 5KGNCWVQO´XKNKPEQTRQTCWPCCPVGPCFG(//959GPGN
ETKUVCNVTCUGTQQNCVGTCNEQPUWNVǦ0QVCUUQDTGNQUECDNGU
FGEQPVTQN[FGHWGPVGFGCNKOGPVCEK´P̍
FGEQPVTQN[FGHWGPVGFGCNKOGPVCEK´P̍
ɢ #NVGTOKPCNFGCNKOGPVCEK´PFG
8SWG
TGEKDGGPGTI®CUKPKPVGTTWREK´P
#UGI»TGUGFGEQPGEVCTRTKOGTQGNECDNGFGEQPGZK´PCOCUC
PGITQCWPCUWRGT㧋EKGOGV¢NKECFGNCWVQO´XKN
PGITQCWPCUWRGT㧋EKGOGV¢NKECFGNCWVQO´XKN
0QVCUUQDTGNQUECDNGUFGEQPVTQN[FGHWGPVGFG
CNKOGPVCEK´P
̒ 'NECDNGFGEQPVTQNFGNCCPVGPCOQVQTK\CFC C\WNUWOKPKUVTCT¢
CNKOGPVCEK´P
̒ 'NECDNGFGEQPVTQNFGNCCPVGPCOQVQTK\CFC C\WNUWOKPKUVTCT¢
EEFG
8EWCPFQEQPGEVGNCCNKOGPVCEK´PFGNUKPVQPK\CFQT
̒ 5KGNCWVQO´XKNFKURQPGFGWPCCPVGPCFG(//959
KPEQTRQTCFCGPGNETKUVCNVTCUGTQQNCVGTCNEQPGEVGGNECDNG
FGEQPVTQNFGCPVGPCOQVQTK\CFC C\WNQGNECDNGFGHWGPVG
FGCNKOGPVCEK´PCWZKNKCT TQLQCNVGTOKPCNFGCNKOGPVCEK´P
FGNCORNK㧋ECFQTFGCPVGPCGZKUVGPVG2CTCQDVGPGTO¢U
KPHQTOCEK´PEQPUWNVGCUWFKUVTKDWKFQT
FGEQPVTQNFGCPVGPCOQVQTK\CFC C\WNQGNECDNGFGHWGPVG
FGCNKOGPVCEK´PCWZKNKCT TQLQCNVGTOKPCNFGCNKOGPVCEK´P
FGNCORNK㧋ECFQTFGCPVGPCGZKUVGPVG2CTCQDVGPGTO¢U
KPHQTOCEK´PEQPUWNVGCUWFKUVTKDWKFQT
̒ %QPGUVCWPKFCFPQGURQUKDNGWVKNK\CTWPCCPVGPCOQVQTK\CFC
UKPECLCFGTGNª
%QPGZK´PRCTCRTQVGEEK´PFGNCOGOQTKC
5KEQPGEVCGNECDNGFGHWGPVGFGCNKOGPVCEK´PCOCTKNNQGNEKTEWKVQ
FGNCOGOQTKCTGEKDKT¢UKGORTGCNKOGPVCEK´PCWPSWGCRCIWGGN
KPVGTTWRVQTFGGPEGPFKFQ
5KEQPGEVCGNECDNGFGHWGPVGFGCNKOGPVCEK´PCOCTKNNQGNEKTEWKVQ
FGNCOGOQTKCTGEKDKT¢UKGORTGCNKOGPVCEK´PCWPSWGCRCIWGGN
KPVGTTWRVQTFGGPEGPFKFQ
0QVCUUQDTGNCEQPGZK´PFGNQUCNVCXQEGU
̒ #PVGUFGEQPGEVCTNQUCNVCXQEGUFGUEQPGEVGNCCNKOGPVCEK´P
̒ #PVGUFGEQPGEVCTNQUCNVCXQEGUFGUEQPGEVGNCCNKOGPVCEK´P
FGNCWPKFCF
̒ 7VKNKEGCNVCXQEGUEQPWPCKORGFCPEKCFGC EQPNC
ECRCEKFCFFGRQVGPEKCCFGEWCFCRCTCGXKVCTSWGUGFC²GP
̒ 0QEQPGEVGNQUVGTOKPCNGUFGCNVCXQ\CNEJCUKUFGNCWVQO´XKN
PKEQPGEVGNQUVGTOKPCNGUFGNCNVCXQ\FGTGEJQEQPNQUFGN
K\SWKGTFQ
K\SWKGTFQ
̒ 0QEQPGEVGGNECDNGFGEQPGZK´PCOCUCFGGUVCWPKFCFCN
VGTOKPCNPGICVKXQ
̄FGNCNVCXQ\
̒ 0QKPVGPVGEQPGEVCTNQUCNVCXQEGUGPRCTCNGNQ
̒ %QPGEVGUQNCOGPVGCNVCXQEGURCUKXQU5KEQPGEVCCNVCXQEGU
̒ %QPGEVGUQNCOGPVGCNVCXQEGURCUKXQU5KEQPGEVCCNVCXQEGU
CEVKXQU
EQPCORNK㧋ECFQTGUKPEQTRQTCFQUCNQUVGTOKPCNGUFG
CNVCXQ\RWGFGFC²CTNCWPKFCF
CNVCXQ\RWGFGFC²CTNCWPKFCF
̒ 2CTCGXKVCTHCNNCUFGHWPEKQPCOKGPVQPQWVKNKEGNQUECDNGUFG
CNVCXQ\KPEQTRQTCFQUKPUVCNCFQUGPGNCWVQO´XKNUKNCWPKFCF
EQORCTVGWPECDNGPGICVKXQEQO»P ̄RCTCNQUCNVCXQEGU
FGTGEJQGK\SWKGTFQ
EQORCTVGWPECDNGPGICVKXQEQO»P ̄RCTCNQUCNVCXQEGU
FGTGEJQGK\SWKGTFQ
̒ 0QEQPGEVGNQUECDNGUFGCNVCXQ\FGNCWPKFCFGPVTGU®
0QVCUQDTGNCEQPGZK´P
5KGNCNVCXQ\[GNCORNK㧋ECFQTPQGUV¢PEQPGEVCFQU
EQTTGEVCOGPVGCRCTGEGT¢̌(#+.74'̍GPNCRCPVCNNC5KGUCU®
EQORTWGDGNCEQPGZK´PFGCODQUFKURQUKVKXQU
5KGNCNVCXQ\[GNCORNK㧋ECFQTPQGUV¢PEQPGEVCFQU
EQTTGEVCOGPVGCRCTGEGT¢̌(#+.74'̍GPNCRCPVCNNC5KGUCU®
EQORTWGDGNCEQPGZK´PFGCODQUFKURQUKVKXQU
ȍ
2
4
5
1
3
.
4
4'#457$
#7 &+1176
4'#4
57$
#7 &+1176
ʔ
#/24'/
/CZUWRRN[EWTTGPV#
%QTTKGPVGO¢ZFGCNKOGPVCEK´PFG#
%QTTKGPVGO¢ZFGCNKOGPVCEK´PFG#
(WUG
#
(WUKDNG #
(WUKDNG #
$NWGYJKVGUVTKRGF
%QPTC[CUC\WNGU[DNCPECU
%QPTC[CUC\WNGU[DNCPECU
4GF
4QLQ
4QLQ
;GNNQY
#OCTKNNQ
#OCTKNNQ
9JKVG
$NCPEQ
$NCPEQ
)TGGP
8GTFG
8GTFG
2WTRNG
/QTCFQ
/QTCFQ
9JKVGDNCEMUVTKRGF
%QPTC[CUDNCPECU[PGITCU
%QPTC[CUDNCPECU[PGITCU
)TC[DNCEMUVTKRGF
%QPTC[CUITKUGU[PGITCU
%QPTC[CUITKUGU[PGITCU
)TGGPDNCEMUVTKRGF
%QPTC[CUXGTFGU[PGITCU
%QPTC[CUXGTFGU[PGITCU
)TC[
)TKU
)TKU
.GHV
+\SWKGTFQ
+\SWKGTFQ
4KIJV
>GEJQ
>GEJQ
#064'/
$NCEM
0GITQ
0GITQ
$NWG
#\WN
#\WN
/CZUWRRN[EWTTGPV#
%QTTKGPVGO¢ZFGCNKOGPVCEK´PFG#
%QTTKGPVGO¢ZFGCNKOGPVCEK´PFG#
2WTRNGDNCEMUVTKRGF
%QPTC[CUOQTCFCU[PGITCU
%QPTC[CUOQTCFCU[PGITCU
HTQOECTCPVGPPC
CGTKCN
FGUFGNCCPVGPCFGNCWVQO´XKN
FGUFGNCCPVGPCFGNCWVQO´XKN
.GHV
+\SWKGTFQ
+\SWKGTFQ
4KIJV
>GEJQ
>GEJQ
%CDNGEQPVGTOKPCNGU4%#
PQUWOKPKUVTCFQ
#7&+1176
UCNKFCFGCWFKQRWGFG
ECODKCTUGC57$Q4'#42CTCQDVGPGT
KPHQTOCEK´PEQPUWNVGGNOCPWCNFG
KPUVTWEEKQPGUUWOKPKUVTCFQ
ECODKCTUGC57$Q4'#42CTCQDVGPGT
KPHQTOCEK´PEQPUWNVGGNOCPWCNFG
KPUVTWEEKQPGUUWOKPKUVTCFQ
4%#RKPEQTF
PQVUWRRNKGF
#7&+1176ECPDGUYKVEJGF57$QT4'#4
(QTFGVCKNUUGGVJGUWRRNKGF1RGTCVKPI
+PUVTWEVKQPU
+PUVTWEVKQPU
CDX-GT25
6
SECTION 3
DISASSEMBLY
• This set can be disassembled in the order shown below.
3-1. SUB
PANEL
ASSY
(Page
7)
3-2. CD MECHANISM BLOCK
(Page
(Page
7)
SET
3-3. MAIN
BOARD
(Page
8)
3-5. CHASSIS (T) SUB ASSY
(Page
(Page
9)
3-6. ROLLER ARM ASSY
(Page
(Page
9)
3-7. CHASSIS
(OP)
ASSY
(Page
10)
3-8. CHUCKING ARM SUB ASSY
(Page
(Page
10)
3-9. SLED
MOTOR
ASSY
(Page
11)
3-10. OPTICAL PICK-UP SECTION
(Page
(Page
12)
3-11. OPTICAL PICK-UP
(Page
(Page
12)
3-4. SERVO
BOARD
(Page
8)
CDX-GT25
7
Note: Follow the disassembly procedure in the numerical order given.
3-1. SUB PANEL ASSY
3-2. CD MECHANISM BLOCK
2
two claws
3 two claws
4 sub panel assy
1 two screws
(+PTT
2.6
u 6)
4 CNP301
3
1 screw
(+PTT
2.6
u 6)
2 screw
(+PTT
2.6
u 6)
5 two screws
(+PTT
2.6
u 4)
6 bracket (CD)
7 CD mechanism block
CDX-GT25
8
3-3. MAIN BOARD
3-4. SERVO BOARD
7
SERVO board
SERVO board
3
toothed lock screw
(M
1.7
u 2.5)
2
toothed lock screw
(M
1.7
u 2.5)
1
Remove the eleven solders.
6
optical pick-up (16 core)
(CN101)
4
claw
5
claw
gray
yellow
blue
orange
red
black
red
white
black
red
white
9 MAIN board
insulating sheet
3
2 two screws
(+PTT
2.6
u 8)
1 three screws
(+BTT
2.6
u 5)
7 screw
(+PTT
2.6
u 10)
8 heat sink
4 two screws
(+P
2.6
u 8)
6 screw
(+P
2.6
u 8)
5 two screws
(+PTT
2.6
u 10)
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