Marantz SR6004 Service Manual page 140

IC34 : UPD63901GJ(A)-301-8EN-A
16.9344 MHz
USB terminal
IC43, IC98 : TC7WHU04FU
External DRAM
Buffer
1M bit
memory
SRAM
controller
Audio DSP
Compression audio LSI core
USB
CSI + 2port,
INT
48 MHz
μ
PD63901
1 bit
DAC
Control engine core
Retention
SRAM
External interface control
172
Analog out
L, R