Sonar: [iceboy] #1 - 1060131708

Release: DMG-AHWJ-JPN
Stamp on case: -
Color: blue
CGB only shell (has no dent for DMG power slider): no
SGB logo: no
Microphone Serial (inside jack connector cap): 000687

Board

Board type: 020310E4-00-1
Manufacture date: June/1998
Circled letter(s) on board: I
Extra label: 4

Sonar

Board type: HD0B220002

Chips

	Chip	Type	Manufacturer	Date	Label
U1	ROM	?	?	Week 25/1998	GYOTAN 1P0206Y4 C982538
U2	Mapper	MBC1B1	Sharp	Week 17/1998	DMG MBC1B1 Nintendo S 9817 1 A
U3	Latch	74HC373A	Toshiba	Week 9/1998	98 09 H 74HC373A
U2	Comparator	BA10339F	ROHM	Week 12/1998	BA10339F 812 L13
U3	Flip-flop	74HC74A	Toshiba	Week 16/1998	98 16 H 74HC74A
U4	Inverter	74HCU04A	Toshiba	Week 15/1998	98 15 H 74HCU04A

ROM

Game title: "POCKETSONAR" (11 bytes)
Game code: ""
CGB support: incompatible
Maker code: "B2"
SGB support: no
Cartridge type: mbc1
ROM size: 512 kilobytes
RAM size: 0 kilobytes
Destination code: japan
License code: 0x33
ROM version: 0
Header complement check: 0xf2
Check sum (in header): 0x6075
Check sum (actual): 0x6075
MD5 sum: e7e0943cb9b8d6dd29c18e6a41e8d346

Notes

- Both PCBs are damaged by battery leakage.
    -> Cleaned
    -> Partially resoldered
- Some battery springs are corroded due to leaking batteries.
    -> Cleaned
    -> GND spring broke apart due to the corrosion. Replaced with new one.
    -> Replaced red and black cables, which also were soaked in battery leakage.
- Parts of the case broke off. One of the domes that holds a screw, some corners that hold the
  battery springs and other corners. Material is more fragile than normal cartridges.
    -> Glued them back on.

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Generated: 2024-02-22 12:05 PM +01:00