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nice completed SERVICE MANUAL as the description THANK YOU !!!-
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Hard to find service manual describing the PLL circuit of the AKAI AP-306.
Thanks to have it available.
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Gut, sehr gut! It helps me much! I couldn't find this schema nowhere. Good quality
Block diagram
H/P JACK section
PW102
Main section
H.P MUTE H.P SENSE DO,DI,CLK 72131_CE TUNE/MUTE POWER_ON PROTECTIN
L-CH,R-CH
HJACK1
PHONES JACK
HIC01
MUTE
TUNER
AC IN
Main power trans.
PICKUP
LIM
CW01B CON01 CW01A CW107 CW101 CW102 CW103 CW104
M M M
TU_L TU_R VPP VFD_AC u-COM 5.6V CD 8.6V SIG 12V L_CH R_CH L_CH R_CH
EIC02 AIC01 AIC02
W.CON W.SIG
+/-VH +/-VL
DIODE BRIDGE
+/-VH +/-VL
PIC02 REG.
POWER_ON
L-CH R-CH
CD_L CD_R MUTE
CW106 ACW2
CW105 ACW1
W.CON W.SIG
CW112 UCW02 AJK01 AUX JACK
CW10
+VH,-VH +VL,-VL
WIC01 Sub woofer amp.
TO SUB WOOFER SPEAKER
PROTECTION L_CH R_CH
FIC02
+VL,-VL
POWER_ON
FIC01 Front amp.
TO FRONT SPEAKER
Amp. section CD section
A,B,C,D,E,F LD,PD EFM LOCK SMDS SMDP SMEF WDCK
IC501 Memory
L-CH R-CH MUTE
CW10
IC101
F+,FT+,TSP+,SPSL+,SLOPEN_M
RF AMP. & SS Processor
SPO,TEO FEO,SLO
ADDR0 to 10 DB0 to 7 LDQM,UDQM /WE,/RAS,/CAS CLK,CKE,BA
IC201 DSP
RESET MDATA ISTAT MLT MCK
L-CH,R-CH MUTE
IC301 4ch Motor DRV.
SOS1,ISTAT RESET,LKFS MDATA,/MADDR /MRD,/MWE /MCS,/DECINT
RL+ RL-
IC302 Motor DRV.
CLOSE_M
IC303 Motor DRV.
RL_SENSE
RL+
SW1 SW2
SW1 SW2
2-3
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