akira CT-21XF9, Service Manual

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Model No: CT-21XF9A
Version 1.0
GENERAL DESCRIPTION
Figure 1 shows the block diagram of CN-9 (21BM32).
Table 1 provides CN-9EA chassis main ICs and functions.
Figure 2 shows the whole set power supply system for CN-9EA chassis.
Figure 3 shows the system control circuit of CN-9EA chassis.
Table 1: 21BS32EA mainly ICs and functions
Location Type Mainly function
N001 CH08T0934 System control microprocessor
N002 AT24C08-10PI Memory
N945 HS0038A Remote control receiver
NM01 TC9028F-022 Remote control transmitter
N101 LA7910 Band decoder
N202 HEF4052 Sound system switching
N201 TB 1238AN
Small signal processing
(IF/VIDEO/CHROMA/DEF)
N401 TA8403 Vertical output power amplifier
N601 TDA7057AQ Audio power amplifier
N701 TA1275AZ SECAM decoder
N602 HCF4066BE Audio TV/AV switching
NS01 TDA7449 Audio processor
NT01 SAA5261 Teletext processor
NT02 PCF8582 Memory