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(a) (From page 44)
↓
[Push all the keys, one by one.]
<LED (88:88) lights up>
[Add solder to Resistor-Arrays around IC2001]
(b) (See page 46)
NO
<K6001:3.3V/K6002:5V
Both correct?>
YES
<IC6001 Pin53 (IRQ_Teiden) High?>
YES
<IC6001 Pin54 (IRQ_key) Low?>
YES
<K2001 27MHz oscillation correct?>
YES
<R3005 (XRESETO High)>
YES
<IC6001 Pin63(SDA)/Pin64 (SCL)
both High?>
YES
[Enter checking around IC2001 (OMEGA)
or Memory devices]
[Add solder to IC3001]: FLASH ROM (I)
[Add solder to IC3003]: DRAM
[Add solder to IC3002]: FLASH ROM (II)
[Replace IC3001]: FLASH ROM (I)
[Replace IC3003]: DRAM
[Replace IC3002]: FLASH ROM (II)
[Replace the MAIN Ass'y]
NO
<IC6001 Pin5 (XSTBY) High?>
↓
YES
[Replace parts around Q6017/Q6018]
NO
[Replace R2098]
(See the bottom side of IC2001)
NO
[Replace IC6001]
NO
[Replace parts around VCXO]
(For example: crystal resonator,
IC2003...)
NO
[Replace R3005]
NO
<After replacing C6013, OK?>
YES
TS4
NO
<Replace the FRONT Ass'y>
NO
[Enter I2C (IIC) check]
↓
((B))
(See page 47)
45
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